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IBM TotalStorage Enterprise Storage Server Model 750: Attractive price/performance for the small enterprise

IBM United States Hardware Announcement 104-119
April 7, 2004

 ENUS104-119.PDF (70KB)

Table of contents   Document options  
At a glance Publications
Overview Services
Key prerequisites Technical information
Planned availability dates Terms and conditions
Description Prices
Product positioning Order now
Reference information  
 
Printable version

(Corrected on April 12, 2004)

Planned availability dates changed. Feature 9871 added.
 

At a glance

The ESS Model 750 is based on the same architecture as the ESS Model 800 to support functionality, stability, and reliability. The ESS Model 750 includes:

  • Support for up to 64 disk drives and up to 4.6 terabytes (TB) of physical capacity
  • A two-way processor with 8 GB of cache, 2 GB of Non Volatile Storage (NVS), and support for up to six Fibre Channel/FICON or ESCON host adapters
  • Support for 72.8 GB and 145.6 GB 10,000 rpm drives which can be intermixed and configured as RAID 5, RAID 10, or a combination of both
  • FlashCopy and Peer-to-Peer Remote Copy (PPRC) options to help meet business continuance requirements
  • Parallel Access Volumes (PAV), priority I/O queuing, and multiple allegiance for enhanced IBM eServer zSeries performance
  • The ability to upgrade to the ESS Model 800, providing investment protection
  • A three-year warranty

For ordering, contact:

Your IBM representative, an IBM Business Partner, or IBM Americas Call Centers at 800-IBM-CALL (Reference: YE001).
 
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Overview

Today's global, e-business environment is increasing the demand for fast and reliable access to data 24 hours a day, 7 days a week. However, economic conditions mandate expenses to be kept low in order to maintain a competitive bottom-line. The IBM TotalStorage® Enterprise Storage Server™ (ESS) Model 750 sets yet another milestone in ESS functionality, flexibility, and overall value. It is designed to help meet the needs of clients who don't require the full range of capacity and performance scalability offered by the ESS Model 800, but do need enterprise-level functionality intended to support reliable, continuous access to data at an affordable price.

The ESS Model 750 is a new model in the family of Enterprise Storage Servers. It provides an entry point into the ESS product family comprised of the ESS Model 750 and the ESS Model 800. The ESS Model 750 offers many of the features of the ESS Model 800, but is based on a two-way processor with 8 GB cache and 2 GB of NVS in contrast to the four or six-way processors available with the ESS Model 800. With support for up to 4.6 TB of physical capacity and six 2Gb Fibre Channel/FICON™ or ESCON® host adapters, the ESS Model 750 is designed to provide an attractive price/performance balance for clients requiring smaller configurations. The ESS Model 750 is well-suited for environments where the workload access densities average two operations per second per gigabyte.

The ESS Model 750 supports FlashCopy® and FlashCopy Version 2, as well as PPRC and PPRC Version 2, for point-in-time copy options and advanced metropolitan or long-distance business continuance solutions. The ESS Model 750 also includes support for zSeries® performance enhancers; PAV, priority I/O queuing, and multiple allegiance. Additionally, the ESS Model 750 is upgradeable to the ESS Model 800, offering clients investment protection and full ESS scalability.
 
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Key prerequisites

ESS LIC level 2.3.1, or later


 
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Planned availability dates
  • May 28, 2004: Model 750
  • June 25, 2004: Field install features
  • November 26, 2004: Model conversion

 
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Description

Attractive price/performance for the small enterprise

The ESS Model 750 is designed to extend the functionality, stability, reliability, and proven track record of the ESS product family to an entry-level configuration.

The ESS Model 750 integrates a two-way processor with 8 GB cache and 2 GB of NVS. With support for up to 4.6 TB of physical capacity and six 2Gb Fibre Channel/FICON or ESCON host adapters, the ESS Model 750 is designed to provide an attractive price/performance for enterprises requiring smaller configurations. The ESS Model 750 is well-suited for environments where the workload access densities average two operations per second per gigabyte.

The ESS Model 750 can be configured as RAID 5, RAID 10, or a combination of both. As a price/performance leader, RAID 5 offers excellent performance for many customer applications, while RAID 10 can offer better performance for selected applications. Price, performance, and capacity can further be optimized to help meet specific application and business requirements through the intermix of 72.8 GB or 145.6 GB drives operating at 10,000 rpm.

The ESS Model 750 can help support 24x7 operations with a design that seeks to reduce single points of failure through component redundancy. The ESS Model 750 also supports advanced functions that can help deliver business continuance solutions (FlashCopy and PPRC), as well as FICON, PAV, multiple allegiance, and I/O priority queuing to offer great performance in the zSeries and S/390® environments.

The ESS Model 750 is field upgradeable, via a non-disruptive model conversion, to the ESS Model 800. This can help extend the value of the ESS Model 750 and opens a path to the full scalability and performance of the ESS Model 800.

A variety of configuration options

Physical capacity for the ESS Model 750 is purchased via pairs of disk eight-packs. A disk eight-pack contains eight disk drives, all which are of the same capacity (either 72.8 or 145.6 GB) and rpm (10,000).

The ESS Model 750 supports the intermix of 72.8 GB and 145.6 GB drives. With intermix support, a variety of configuration options are available so that price, performance, and capacity can be better optimized to meet specific application or business requirements.

For additional flexibility, feature conversions are available to exchange existing disk eight-packs when purchasing new disk eight-packs with higher capacity disk drives.

IBM Standby Capacity on Demand for ESS offering delivers storage on demand

The IBM Standby Capacity On Demand for ESS offering (Standby CoD) provides "standby" storage for the ESS and allows you to access the extra storage capacity whenever the need arises. With Standby CoD, IBM will install two Standby CoD disk eight-packs in your ESS for a nominal charge. At any time, you can logically configure your Standby CoD capacity for use — a nondisruptive activity that does not require intervention from IBM. Upon logical configuration, you will be charged for the capacity.

IBM offers capacity on demand solutions that are designed to meet the changing storage needs of rapidly growing e-businesses. Standby CoD is designed to provide you with the ability to tap into additional ESS storage and is particularly attractive if you have rapid or unpredictable growth, or if you simply want the knowledge that the storage will be there when you need it.

Contact your IBM representative or Business Partner to obtain additional information regarding Standby CoD terms and conditions.

Flexibility with support for RAID 5 and RAID 10

With the ESS Model 750, physical capacity can be configured as RAID 5, RAID 10, or a combination of both. RAID 5 can offer excellent performance for most customer applications, while RAID 10 can offer better performance for selected applications, in particular, high random write content applications in the open systems environment. RAID 10 combines RAID 1 (mirroring) with RAID 0 (striping). Each drive within a RAID 10 array is mirrored to a second drive within the array, and to optimize performance, data is striped across the drives within the array.

The decision to configure capacity as RAID 5 or RAID 10, as well as the amount of capacity to configure for each type, can be made at any time. RAID 5 and RAID 10 arrays can be intermixed with an ESS (including within an SSA loop) and the physical capacity can be logically reconfigured at a later date (for example, RAID 5 arrays can be reconfigured into RAID 10 arrays). To further support this flexibility, advanced function licenses (for example, PAV, PPRC, and FlashCopy) are purchased for the ESS Model 750 based upon the physical capacity of the ESS, thereby, reducing the amount of pre-purchase planning and decisions, and reducing the need to upgrade as capacity is logically reconfigured.

Extensive connectivity with 2Gb Fibre Channel/FICON support for high performance SANs

The ESS Model 750 offers extensive connectivity support — including Fibre Channel, FICON, ESCON, iSCSI, and NAS — across a broad range of server environments — including zSeries and S/390, IBM eServer pSeries® and RS/6000®, IBM eServer iSeries™ and AS/400®, IBM eServer xSeries® and other Intel™-based servers, Sun and Hewlett-Packard. This rich support of heterogeneous environments and attachments, along with the flexibility to easily partition the ESS storage capacity among the attached environments using the IBM TotalStorage Enterprise Storage Server Specialist (ESS Specialist), helps support storage consolidation requirements and dynamic, changing environments.

The ESS Model 750 further enhances this broad set of connectivity options with support for 2Gb Fibre Channel and FICON. The 2Gb Fibre Channel/FICON Host Adapters, which are offered in longwave and shortwave, auto-negotiate to either 2Gb or 1Gb link speeds. This flexibility enables immediate exploitation of the benefits offered by higher performance, 2Gb SAN-based solutions, while also maintaining compatibility with existing 1Gb infrastructures. As 2Gb capability on servers and fabric components is introduced into existing SANs, your investment in ESS fibre adapters is protected and migration is simplified.

Rich set of business continuance solutions

The ESS Model 750 supports a rich set of copy service functions and management tools that can be used to build solutions to help meet business continuance requirements.

FlashCopy is designed to provide a point-in-time copy capability for logical volumes. FlashCopy creates a physical point-in-time copy of the data, with minimal interruption to applications, and makes it possible to access both the source and target copies immediately. FlashCopy is an optional feature for the ESS (#83xx).

FlashCopy Version 2 further supports business continuance solutions with support for the following additional functions:

  • Data Set FlashCopy
  • Multiple Relationship FlashCopy
  • Incremental FlashCopy
  • Additional enhancements:
    • Elimination of the Logical Subsystem (LSS) constraint
    • Establish time improvement
    • Consistency group commands
    • Inband commands over PPRC link

Data Set FlashCopy allows you to perform a FlashCopy of a data set in zSeries and S/390 environments. This level of granularity allows for more efficient use of your ESS capacity and can also help reduce the background copy completion time since a FlashCopy no longer needs to be performed at a volume level when a copy of selected data sets within a volume is required. As with FlashCopy at the volume level, Data Set FlashCopy is fully supported by z/OS® Data Facility Storage Management Subsystem (DFSMS).

With Multiple Relationship FlashCopy, a source can have FlashCopy relationships with multiple targets simultaneously. This flexibility allows you to initiate up to 12 FlashCopy establishes on a given logical unit number (LUN), volume, or data set, without needing to first wait for or cause previous relationships to end.

Incremental FlashCopy provides the capability to "refresh" a LUN or volume involved in a FlashCopy relationship. With Incremental FlashCopy, the initial relationship between a source and target is maintained. When a subsequent FlashCopy establish is initiated, only the data required to bring the target current to the source's newly established point-in-time is copied. Incremental FlashCopy can help reduce the background copy completion time when only a subset of data on either the source or target has changed, giving you the option to perform a FlashCopy on a more frequent basis.

The direction of the "refresh" can also be reversed, in which case the LUN or volume previously defined as the target becomes the source for the LUN or volume previously defined as the source (and is now the target). Again, only the data required to bring the target current to the source's point-in-time is copied. If no updates were made to the target since the last "refresh," the direction change could be used to "restore" the source back to the previous point-in-time state.

Additional enhancements:

  • Elimination of the LSS constraint: A FlashCopy source and target relationship can span logical subsystems within an ESS. This flexibility can help simplify administration and capacity planning for FlashCopy.
  • Establish time improvement: Performance improvements in FlashCopy Version 2 are designed to provide up to a 10 times reduction in the time required to complete a FlashCopy establish command (as compared to FlashCopy). With this significant reduction in establish time, operational interruption can be further minimized and the benefits of FlashCopy can be extended into new application environments.
  • Consistency group commands: Commands are available to facilitate the creation of FlashCopy consistency groups. With the FlashCopy Consistency Group command, the ESS will hold off I/O activity to a LUN or volume until the Flash Copy Consistency Group Created command is issued. Consistency groups can be used to help create a consistent point-in-time copy across multiple LUNs or volumes, and even across multiple ESSs.
  • Inband commands over PPRC link: In a PPRC environment, commands to manage FlashCopy at the remote site can be issued from the local or intermediate site and transmitted over the PPRC links. This eliminates the need for a network connection to the remote site solely for the management of FlashCopy.

FlashCopy Version 2 is an optional feature to the ESS (#86xx). In addition to supporting the functions listed above, FlashCopy Version 2 includes support for all functions offered with FlashCopy (#83xx).

PPRC is a hardware-based disaster recovery solution designed to provide real-time mirroring of logical volumes within an ESS or between two ESSs that can be located up to 103 km from each other. PPRC is a synchronous copy solution where write operations are completed on both copies (primary and secondary ESS) before they are considered to be done. PPRC also includes PPRC Extended Distance (PPRC-XD), a non-synchronous long-distance copy option for data migration and backup. PPRC is an optional feature to the ESS (#82xx).

PPRC Version 2 further supports business continuance solutions with support for the following additional functions:

  • PPRC over Fibre Channel links
  • Asynchronous Cascading PPRC

PPRC over Fibre Channel links enables the use of Fibre Channel as the communications link between the PPRC primary and PPRC secondary machines. Compared to PPRC over ESCON links, PPRC over Fibre Channel allows a reduction in PPRC link infrastructure, while delivering equivalent or better performance. PPRC communication to the secondary control unit, via Fibre Channel, provides for a much faster interface compared to ESCON, particularly at long distances. Within a single machine, you can run PPRC over both Fibre Channel and ESCON links, although the link type cannot be mixed within the same LSS. The Fibre Channel ports used for PPRC can be configured as either a dedicated PPRC link or as a shared port between PPRC and Fibre Channel Protocol (FCP) data traffic.

Asynchronous Cascading PPRC provides a long-distance remote copy solution for zSeries and open systems environments by allowing a PPRC secondary volume (involved in a PPRC synchronous relationship) to also simultaneously serve as a PPRC primary volume in a PPRC-XD relationship to the remote site. This capability enables the creation of three-site or two-site Asynchronous Cascading PPRC configurations.

In a three-site configuration, the synchronous PPRC relationship is maintained between an ESS at the local site and an ESS at an intermediate site (located within 103 km of the local site). A PPRC-XD relationship is simultaneously maintained between the ESS at the intermediate site and an ESS at the remote site. The remote site can be located at distances well beyond 103 km from the intermediate site — with the distance typically limited only by the capabilities of the network and channel extension technologies. When used with specific operational procedures, a three-site configuration can be designed to provide a data protection solution in the event of an unplanned outage at any one of the three sites. Alternatively, operational procedures, including the creation of a "safety copy" at the remote site using FlashCopy, can be used to design a solution that provides a consistent copy of the data at the remote site in the event of a regional outage affecting both the local and intermediate site.

In a two-site configuration, the synchronous PPRC relationship is maintained between two ESSs, both of which are located at the local site, or within a single ESS. A PPRC-XD relationship is simultaneously maintained to an ESS at the remote site, which can be located at long distances from the local site. With operational procedures, including the creation of a "safety copy" at the remote site using FlashCopy, solutions can be designed providing a consistent copy of the data at the remote site in the event of an outage at the local site.

PPRC Version 2 is an optional feature to the ESS (#85xx). In addition to supporting the functions listed above, PPRC Version 2 also includes support for all functions offered with PPRC (#82xx).

Concurrent Copy offers another method for creating a point-in-copy in zSeries and S/390 environments, with the source data fully available for access and update after initiation of the copy operation.

IBM performance innovations for the zSeries and S/390 environments

The ESS Model 750 supports the following previously introduced IBM performance innovations for the zSeries and S/390 environments.

FICON extends the ESS's ability to deliver high bandwidth potential to the logical volumes needing it, when they need it. Older technologies are limited by the bandwidth of a single disk drive or a single ESCON channel, but FICON, working together with other ESS functions, provides a high-speed pipe with multiplexed operation.

Compared to ESCON, FICON offers increased per channel bandwidth that supports significant improvements in single stream sequential throughput. As a result, elapsed time for batch, data mining, or dump operations can be substantially improved, providing potential relief for customers whose batch or file maintenance windows are constrained.

The data rate offered by FICON during the data transfer portion of response time is up to five times faster than ESCON, which can help improve response time and reduce connect time. The larger the transfer, the greater the typical reduction as a percentage of the total I/O response time. FICON can also help reduce or eliminate the pend time caused by busy director ports. For customers whose ESCON directors are experiencing as much as 45-50% busy conditions, this can support significant response time reduction.

Whereas ESCON channels can process only one operation at a time, FICON channels can process multiple concurrent data transfers. When used with PAV, FICON allows multiple data transfers to the same volume at the same time over the same channel, providing greater parallelism and bandwidth that can better exploit the maximum bandwidth of the ESS arrays better than ESCON. Another performance advantage offered by FICON over ESCON is that the ESS accepts multiple channel command words (CCWs) concurrently without waiting for completion of the previous CCW.

Finally, significant performance advantages can be realized by those customers who access their disk systems remotely. FICON can help reduce or eliminate data rate "droop" for distances up to 100 km for both read and write operations by using enhanced data buffering and pacing schemes.

PAV enables a single zSeries or S/390 server to simultaneously process multiple I/O operations to the same logical volume, which can help to significantly reduce device queue delays. This is achieved by defining multiple addresses per volume. With Dynamic PAV, the assignment of addresses to volumes can be automatically managed to help the workload meet its performance objectives and minimize overall queuing. PAV is an optional feature on the ESS.

Multiple allegiance expands the simultaneous logical volume access capability across multiple zSeries or S/390 servers. This function, along with PAV, enables the ESS to process more I/Os in parallel, helping to improve performance and enabling greater use of large volumes.

I/O priority queuing allows the ESS to use I/O priority information provided by the z/OS or OS/390® Workload Manager to manage the processing sequence of I/O operations.

Management tools and utilities improve administrator productivity

The ESS Model 750 supports the following management tools and utilities.

IBM TotalStorage Enterprise Storage Server Master Console (ESS Master Console) provides single point of control: The ESS Model 750 utilizes the Enterprise Storage Server Network (ESSNet), a dedicated LAN, to support configuration, copy services communications between machines, call home, and remote support capabilities. At the center of the ESSNet is the ESS Master Console, which serves as a single point of control for up to seven ESSs. Multiple ESSNets can also be interconnected and even connected into an enterprise WAN to enable control of the ESSs from a central location, regardless of where the machines may be located.

IBM TotalStorage Enterprise Storage Server Specialist (ESS Specialist): The ESS Specialist is a Web-based tool for performing logical configuration and copy services (PPRC and FlashCopy) management functions. The ESS Specialist is accessed via Web browser installed on the ESS Master Console and can be accessed from other locations throughout the enterprise if the ESSNet is connected into the enterprise network. The ESS Specialist is provided with the ESS, at no additional charge.

IBM TotalStorage Multiple Device Manager (MDM): MDM provides centralized volume management, performance management, and replication management for the ESS. MDM is an optional software product.

IBM TotalStorage Enterprise Storage Server Expert (ESS Expert): The ESS Expert provides comprehensive asset, capacity, and performance management information for the ESS. The ESS Expert is an optional software product.

Command Line Interface (CLI) for PPRC and FlashCopy: The CLI enables open systems hosts to invoke and manage FlashCopy and PPRC functions through batch processes and scripts. It provides commands to query the status of ESS volumes and to execute copy services tasks that were previously created using the ESS Specialist. The CLI is provided with the ESS, at no additional charge. The CLI client is available for the AIX®, DYNIX®/ptx®, HP-UX, NetWare, Solaris, Tru64 UNIX®, Windows NT™, and Windows™ 2000 environments.

ESS Command Line Interface (ESS CLI): The ESS CLI provides an alternate method to perform ESS logical configuration and storage management functions. With the ESS CLI, routine configuration and management tasks can be automated through their incorporation into scripts and applications, helping to simplify ESS administration and thereby reducing the total cost of ownership. The ESS CLI is provided with the ESS at no additional charge. The ESS CLI client is available for the AIX, HP-UX, Linux, Solaris, and Windows 2000 operating system environments.

ESS API: The ESS API supports routine LUN management activities, such as LUN creation, mapping, masking, and the management of FlashCopy and PPRC. It supports these activities through the use of a standard interface as defined by the Storage Networking Industry Association (SNIA) Storage Management Initiative Specification (SMI-S). The ESS API is implemented through the IBM TotalStorage Common Information Model Agent (CIM Agent) for the ESS, a middleware application designed to provide a CIM-compliant interface. The interface allows Tivoli® and third-party software management tools to discover, monitor, and control the ESS. The ESS API and CIM Agent are provided with the ESS at no additional charge. The CIM Agent is available for the AIX, Linux, and Windows 2000 operating system environments.

Subsystem Device Driver (SDD): SDD provides load balancing and enhanced data availability capability in configurations with more than one I/O path between the host server and the ESS. Load balancing can help reduce or eliminate I/O bottlenecks that occur when many I/O operations are directed to common devices via the same I/O path. SDD also helps eliminate a potential single point of failure by automatically rerouting I/O operations when a path failure occurs, thereby supporting enhanced data availability capability. SDD is provided with the ESS, at no additional charge. Fibre Channel (SCSI-FCP) attachment configurations are supported in the AIX, HP-UX, Windows NT, Windows 2000, and Solaris environments.

Additional information

All offers are subject to availability. IBM reserves the right to alter product offerings and specifications at any time without notice. IBM is not responsible for photographic or typographic errors.

IBM makes no representation or warranty regarding third-party products or services.
 
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Product positioning

The ESS Model 750 and ESS Model 800 are designed to provide performance, scalability, and flexibility to support 24x7 operations. It is also designed to help provide the access and protection demanded by today's business environment and to deliver the flexibility and centralized management needed to lower long-term costs.

The ESS Model 750 can help provide clients requiring entry-level disk storage configurations with an alternative to the high-performance, highly scalable, but also higher priced ESS Model 800. The ESS Model 750 supports many of the same features and functions available on the ESS Model 800, including point-in-time copy capability (FlashCopy), comprehensive remote copy and disaster recovery capability (PPRC), and zSeries performance enhancers (FICON, PAV, multiple allegiance, and I/O priority queuing).

The ESS Model 750 is designed to provide entry-level capacity at an attractive price and is specifically targeted to address the requirements of the zSeries and open systems clients who have entry-level capacity and performance requirements but want enterprise-level availability and function. If you plan to replace previous-generation S/390 servers with a new, small zSeries server, you will be interested in this product. If you anticipate storage capacity requirements more than 4 TB over the next three years, or have the need for higher performance, you should instead consider the ESS Model 800.

As compared to the ESS Model 750, the ESS Model 800 offers increased performance and scalability with up to 55.9 TB of physical capacity. The ESS Model 800 is also capable of delivering higher performance and throughput than the ESS Model 750 since it supports additional processors, can be configured with more cache, and supports 15,000 rpm disk drives. For that reason, you should consider the ESS Model 800 for your performance scalability requirements (instead of the ESS Model 750).
 
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Reference information

Refer to Hardware Announcement 104-118 , dated April 7, 2004, IBM eServer zSeries 990: A multipurpose server for the on demand enterprise

Trademarks

 
Enterprise Storage Server, FICON, and iSeries are trademarks of International Business Machines Corporation in the United States or other countries or both.
 
The e-business logo, TotalStorage, ESCON, FlashCopy, zSeries, S/390, pSeries, RS/6000, xSeries, AS/400, z/OS, OS/390, ptx, AIX, Tivoli, Wave, and eServer are registered trademarks of International Business Machines Corporation in the United States or other countries or both.
 
Intel is a trademark of Intel Corporation.
 
Windows and Windows NT are trademarks of Microsoft Corporation.
 
UNIX is a registered trademark of the Open Company in the United States and other countries.
 
DYNIX is a registered trademark of Sequent Computer Systems, Inc., a wholly owned subsidiary of IBM Corporation.
 
Other company, product, and service names may be trademarks or service marks of others.

 
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Publications

The following publication has been updated to reflect this announcement and will be available by April 30, 2004.

                                                            Order
Title                                                       number
 
IBM TotalStorage(R) Enterprise Storage                      GC26-7444
 Server Introduction and Planning Guide

The following publications are shipped with the ESS Model 750. Updated publications will be available with the planned availability of the ESS Model 750.

                                                            Order
Title                                                       number
 
IBM TotalStorage Enterprise Storage                         GC26-7444
 Server Introduction and Planning Guide
 
IBM TotalStorage Enterprise Storage                         SC26-7445
 Server(TM) User's Guide
 
IBM TotalStorage Enterprise Storage Server                  SC26-7446
 Host Systems Attachment Guide
 
IBM TotalStorage Enterprise Storage Server                  SC26-7448
 Web Interface User's Guide
 
IBM TotalStorage Enterprise Storage Server                  SC26-7449
 Command-Line Interface User's Guide
 
IBM TotalStorage Enterprise Storage Server                  GC35-0489
 Application Programming Interface
 Reference
 
IBM TotalStorage Enterprise Storage Server                  SC26-7476
 Configuration Planner for IBM S/390(R) and
 IBM eServer(R) zSeries(R) Hosts
 
IBM TotalStorage Enterprise Storage Server                  SC26-7477
 Configuration Planner for Open Systems
 Hosts
 
IBM TotalStorage Enterprise Storage Server,                 SC26-7608
 IBM TotalStorage SAN Volume Controller,
 IBM TotalStorage SAN Volume Controller for
 Cisco MDS 9000 Subsystem Device Driver's
 User's Guide

ESS publications are available at

Publications can be ordered from your IBM representative, by direct order, or through the Publication Notification System (PNS) Web site at

The Publications Center is a worldwide central repository for IBM product publications and marketing material. This site offers customized search functions to locate publications. This site also offers access to the PNS, a site where you can subscribe to receive e-mail notifications regarding new or revised publications that are of interest to you.

The Publications Center can be accessed at


 
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Services

Integrated technology services (IBM Global Services)

IBM services range from business consulting, outsourcing, hosting services, applications, and other technology management.

IBM technology services help you learn about, plan, install, manage, or optimize your IT infrastructure for e-business. We can help you integrate your high-speed networks, storage systems, application servers, wireless protocols, and an array of platforms, middleware, and communications software for IBM and many non-IBM offerings. IBM is your one-stop shop for IT support needs.

Visit the appropriate link below for details on services available dependant on the brand the product belongs to.

For details on education offerings related to the products listed, visit

Select your country, and then select the product as the category.

For more details on IBM Global Services capabilities, contact your IBM representative, or visit

Your IBM representative can help you determine availability of standard and customized services.
 
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Technical information

Specified operating environment

Hardware requirements

The ESS ships with IBM Licensed Internal Code (LIC) that is licensed for use by a customer on a specific machine, designated by serial number, under the terms and conditions of the IBM Customer Agreement or the IBM Agreement for Licensed Internal Code.

The ESS Model 750 requires ESS LIC level 2.3.1, or later.

Not all ESS features and functions are available or supported in every environment; current information on supported environments and minimum operating systems levels is available at

Software requirements

Current information on servers, operating systems, host adapters, and connectivity products supported by the ESS is available at

The IBM TotalStorage Expert requires a PTF to support the ESS Model 750. This PTF is planned for availability by May 28, 2004. Refer to the IBM TotalStorage Expert V2.1 Fixes entries at

Limitations: The ESS Model 750 supports up to eight disk eight-packs (including Standby CoD) and up to 4.659 TB of physical capacity. The valid configuration options are shown below.

72.8 GB                     145.6 GB
eight-pack     72.8 GB      eight-pack     145.6 GB       Total GB
quantity       capacity     quantity       capacity       capacity
 
2              1,164        0                  0          1,164
4              2,329        0                  0          2,329
6              3,494        0                  0          3,494
8              4,659        0                  0          4,659
2              1,164        2              2,329          3,494
4              2,329        2              2,329          4,659
0                  0        2              2,329          2,329
0                  0        4              4,659          4,659

Note: A gigabyte (GB) equals one billion bytes when referring to disk capacity.

Refer to the IBM TotalStorage Enterprise Storage Server Introduction and Planning Guide (GC26-7444) for physical capacity calculation guidelines.

Planning information

Customer responsibilities

Physical configuration planning

Physical configuration planning is a customer responsibility. Your disk marketing specialist can help you plan and select the ESS physical configuration and features. Introductory information, including required and optional features, can be found in the IBM TotalStorage Enterprise Storage Server Introduction and Planning Guide (GC26-7444).

Capacity and performance planning assistance is also available. Through the use of Disk Magic, your disk marketing specialist can help you plan and anticipate performance characteristics for specific workloads by modelling proposed configurations.

Installation planning

Installation planning is a customer responsibility. Information about planning the installation of your ESS, including equipment, site, and power requirements, can be found in the IBM TotalStorage Enterprise Storage Server Introduction and Planning Guide (GC26-7444).

Logical configuration planning and application

Logical configuration planning is a customer responsibility. Logical configuration refers to the creation of RAID ranks, volumes and/or LUNs, and the assignment of the configured capacity to servers.

During the ESS installation, your disk marketing specialist can help you plan your initial logical configuration, and IBM will apply the logical configuration to the machine.

Following the ESS installation, all modifications to the logical configuration are a customer responsibility and are performed using the ESS Specialist, ESS CLI, or ESS API. IBM Global Services (IGS) will also modify the logical configuration (fee-based services).

ESS advanced functions

Advanced functions are enabled and authorized based upon the physical capacity of the ESS:

  • FlashCopy® and FlashCopy Version 2
    • Enablement and authorization must be equal to or greater than the total physical capacity of the ESS.
  • PPRC and PPRC Version 2
    • Enablement and authorization must be equal to or greater than the total physical capacity of the ESS.
  • PAV
    • Enablement and authorization must be equal to or greater than the physical capacity within the ESS that will be logically configured as Count Key Data (CKD) volumes for use with zSeries and S/390 servers.

Refer to the IBM TotalStorage Enterprise Storage Server Introduction and Planning Guide (GC26-7444) for physical capacity calculation guidelines.

The initial enablement of an ESS advanced function is designed to be a concurrent activity (assuming the appropriate level of microcode is installed on the machine for the given function). The removal of an ESS advanced function to deactivate the function is a disruptive activity and requires a machine IML.

Advanced functions require the selection of IBM 2105 Model 750 feature numbers and the purchase of the matching IBM 2240 ESS Function Authorization feature numbers:

  • The ESS Model 750 feature number enables a given function on the ESS at a given capacity level.
  • The ESS Function Authorization feature number authorizes use of the given advanced function at the given capacity level on the ESS machine for which it was purchased.

The ESS Model 750 8xxx feature numbers and the ESS Function Authorization 8xxx feature numbers are corequisites and must always correspond to one another.

                                                  ESS function
ESS advanced             ESS Model 750            authorization
function                 feature numbers          feature numbers
 
PAV                      2105-750 80xx            2240-PAV 80xx
PPRC                     2105-750 82xx            2240-PRC 82xx
FlashCopy                2105-750 83xx            2240-FLC 83xx
PPRC Version 2           2105-750 85xx            2240-PRC 85xx
FlashCopy Version 2      2105-750 86xx            2240-FLC 86xx

Advanced function licenses can be upgraded to a higher capacity level. The upgrade will be priced as the delta between the current purchase price of the feature removed and added.

FlashCopy and PPRC licenses can be upgraded to FlashCopy Version 2 and PPRC Version 2 licenses, respectively. The upgrade can be made to either the same or a higher capacity level. The upgrade will be priced as the delta between the current purchase price of the feature removed and added.

Copy services planning and implementation

The implementation and use of PPRC and FlashCopy require appropriate planning. Detailed information is available in ESS publications, as well as in the following IBM Redbooks™:

  • IBM TotalStorage Enterprise Storage Server: Implementing Copy Services in an Open Environment (SG24-5757)
  • IBM TotalStorage Enterprise Storage Server: Implementing ESS Copy Services with IBM eServer zSeries (SG24-5680)

Planning and implementation services for ESS copy services are also offered by IGS. For additional information, contact your IBM representative or visit

PPRC: PPRC must be purchased for both the primary and secondary ESS. In three-machine Asynchronous Cascading PPRC configurations, PPRC must also be purchased for the intermediate ESS.

PPRC requires the installation of at least one Fibre Channel/FICON™ or ESCON® host adapter on each ESS in the PPRC configuration to serve as the PPRC communications link. For higher availability, IBM recommends that more than one host adapter per ESS be used for the PPRC connectivity.

PPRC is supported with the use of SAN fabric products, ESCON directors, Dense Wavelength Division Multiplexing (DWDM) products, and channel extenders. A current list of supported environments, configurations, networks, and products is available at

Vendors should be consulted regarding hardware and software prerequisites when using their products in an ESS PPRC configuration. IBM is not responsible for third-party products.

When using channel extender products with PPRC, the channel extender vendor will determine the maximum distance supported between the primary and secondary ESS. The vendors should be contacted for their distance capability, line quality requirements, and WAN attachment capabilities.

FlashCopy: FlashCopy is not required when using PPRC. However, FlashCopy can provide additional value and flexibility, in particular when used in Asynchronous Cascading PPRC configurations.

Only FlashCopy Version 2 (#86xx) is supported with PPRC Version 2 (#85xx). PPRC Version 2 is not supported with FlashCopy (#83xx).

Cable orders

Host attachment cables for 64-bit ESCON Host Adapter (#3013)

An ESCON cable is required to attach the ESS to ESCON channels on zSeries and S/390 servers and ESCON directors. Two cables are provided, at no charge, with each 64-bit ESCON Host Adapter feature and are specified using feature numbers 977x or 979x.

The 62.5 micron cables include a small form-factor, industry-standard MT-RJ connector for attachment to the ESS adapter and are available with either an MR-RJ or ESCON Duplex connector for attachment to servers and ESCON Directors. The cables are 31 meters in length.

A two-meter "pigtail" cable is also available. This cable has an MT-RJ connector for attachment to the ESS adapter and a female ESCON Duplex connector. This cable should be specified only for attaching the 64-bit ESCON Host Adapter to ESCON Duplex cables.

Additional quantities of all these cables can be ordered using feature numbers 287x or 289x

Host attachment cables for Fibre Channel/FICON Host Adapters (#3024 and #3025)

A fiber optic cable is required to attach the ESS to Fibre Channel/FICON ports on servers and fabric components. A cable is provided, at no charge, with each Fibre Channel/FICON Host Adapter feature and is specified using feature numbers 975x or 976x.

The cables include an LC connector for attachment to the ESS adapter and are available with either an SC connector or LC connector for attachment to servers and fabric components. The cables are 31 meters in length and are available in 9 micron (singlemode) and 50 micron (multimode).

Two-meter "pigtail" cables are also available in 9 micron (singlemode) and 50 micron (multimode). These cables have an LC connector for attachment to the ESS adapter and a female SC connector. These cables should be specified only for attaching the Fibre Channel/FICON Host Adapter features (#3024 or #3025) to SC cables.

Additional quantities of all these cables can be ordered using feature numbers 285x or 286x.

Note: Supported cable types and maximum cable length vary when running Fibre Channel/FICON at 1Gb or 2Gb link speeds. Refer to the IBM TotalStorage Enterprise Storage Server Introduction and Planning Guide (GC26-7444) for additional information.

Additional cable options available from IBM Global Services

In many situations, the required lengths and installation of host attachment cables will be unique to each customer's configuration and facility specifications. Additional cable options and product support services offered by IBM Global Services' Networking Services can provide assistance for these unique cabling and installation requirements.

Installability: The physical installation time for the ESS Model 750 is 8 to 12 hours (excludes logical configuration activities).

Direct customer support: Direct customer support for the 2105 ESS is provided by IBM Operational Support Services — Support Line. This fee service can enhance your productivity by providing voice and electronic access into the IBM support organization. IBM Operational Support Services — Support Line will help answer questions pertaining to product and feature usage ("how to"), configuration, and product compatibility for eligible products. For a list of the products supported via Support Line, visit the following Web site

For more information on services, call 800-IBM-4YOU (426-4968).

Security, auditability, and control

This product uses the security and auditability features of the host hardware, host software, and/or application software to which it is attached.

The customer is responsible for evaluation, selection, and implementation of security features, administrative procedures, and appropriate controls in application systems and communications facilities.
 
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Terms and conditions

This product is available for purchase under the terms of the IBM Customer Agreement.

Each IBM Machine is manufactured from parts that may be new or used. In some cases, a Machine may not be new and may have been previously installed.

Regardless, IBM's appropriate warranty terms apply.

Volume orders: Contact your IBM representative.

IBM Global Financing: Yes

Warranty period: Three years

Warranty service: IBM On-Site Repair (IOR) 24 hours a day, 7 days a week, same-day response.

Usage plan machine: No

IBM hourly service rate classification: Three

When a type of service involves the exchange of a machine part, the replacement may not be new, but will be in good working order.

Field-installable features: Yes

Model conversions: Yes

Machine installation: Installation is performed by IBM. IBM will install the machine in accordance with the IBM installation procedures for the Machine. In the United States, contact IBM at 800-IBM-SERV (426-7378), in other countries contact the local IBM office.

Installation planning is a customer responsibility. Information about planning the installation of your ESS, including equipment, site, and power requirements, can be found in the IBM TotalStorage Enterprise Storage Server Introduction and Planning Guide (GC26-7444).

Graduated charges: No

Licensed Internal Code: IBM Licensed Internal Code is licensed for use by a customer on a specific machine, designated by serial number, under the terms and conditions of the IBM Agreement for Licensed Internal Code.

Educational allowance: A reduced charge is available to qualified education customers. The educational allowance may not be added to any other discount or allowance.


 
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Prices

Contact your IBM representative for charges information for this announcement.
 
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Order now

To order, contact the Americas Call Centers, your local IBM representative, or your IBM Business Partner.

To identify your local IBM representative or IBM Business Partner, call 800-IBM-4YOU (426-4968).

 Phone:     800-IBM-CALL (426-2255)
 Fax:       800-2IBM-FAX (242-6329)
 Internet:  ibm_direct@vnet.ibm.com
 Mail:      IBM Americas Call Centers
            Dept:  IBM CALL, 6th Floor
            105 Moatfield Drive
            North York, Ontario
            Canada M3B 3R1
 
 Reference: YE001

The Americas Call Centers, our national direct marketing organization, can add your name to the mailing list for catalogs of IBM products.

Note: Shipments will begin after the planned availability date.

Trademarks

 
Enterprise Storage Server, IBMLink, iSeries, Redbooks, and FICON are trademarks of International Business Machines Corporation in the United States or other countries or both.
 
TotalStorage, S/390, eServer, zSeries, pSeries, FlashCopy, ESCON, Wave, and xSeries are registered trademarks of International Business Machines Corporation in the United States or other countries or both.
 
Other company, product, and service names may be trademarks or service marks of others.

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