ClearCase 7.1.x Hardware and Software requirements

Product documentation


Abstract

This document provides you with information about supported file systems, operating system patches, and supported layered software, as well as additional disk space requirements for platforms supported by IBM Rational ClearCase and ClearCase MultiSite (CC) 7.1.x.

Content

Hardware and software requirements



For additional system requirement details refer to:
Rational ClearCase System Requirements List



See Change History for updates.


Supported file systems

Refer to
technote 1516887 for information about supported file systems.



NFS support

For a given platform, IBM supports the NFS implementations that the platform supports.

If you use non-ClearCase access, see the IBM Rational ClearCase Administrator's Guide for a description of the limitations associated with use of NFS and potential workarounds.
Refer to
technote 1409405 NFSv4 support and ClearCase for details regarding NFS version 4 support.




Hardware requirements

This section describes hardware requirements for installing and running the IBM Rational ClearCase and Rational ClearCase MultiSite software.

Minimum requirements

Component(s)
Processor
Memory/Disk
Network
ClearCase server hosts
2-4 CPU

128 processes on hosts running Linux or the UNIX system

(Not applicable for Linux for IBM S/390 and zSeries)


4-8GB RAM
80GB hard disk space

600 file descriptors per host (not per process) running Linux or the UNIX system

Wireless 802.11g

Wired connectivity 100MB Full Duplex (recommended)
Dedicated CM Server 1 2

ClearCase or ClearQuest Web applications installed.

Quad Core/CPU


128 processes on hosts running Linux or the UNIX system

8GB RAM

80GB hard disk space

600 file descriptors per host (not per process) running Linux or the UNIX system
Wired connectivity to other ClearCase Servers

100MB Full Duplex (Gigabit recommended)
ClearCase c lient hosts
1.5GHz 32-bit (x86) or 64-bit (x64) processor
RAM - 1GB (2GB recommended for Development machines)

40GB hard disk space
Wireless 802.11g

Wired connectivity 100MB Full Duplex (recommended)
CCRC RCP or Eclipse plug-in client hosts
1.5GHz 32-bit (x86) or 64-bit (x64) processor
RAM - 2-3GB (recommend setting Eclipse Heap Size at 1Gig)

1GB hard disk space 3
Wireless 802.11g

Wired connectivity 100MB Full Duplex (recommended)

Note: Processes and file descriptors per host running Linux or the UNIX system are set as kernel parameters.

Footnote 1: For more detailed configuration information refer to technote 1327082 CM Server configuration guidelines for CCRC in ClearCase version 7.1

Footnote 2: Additional ClearCase processes or servers located on this machine (such as license, registry, VOB, or others) will require additional resources.

Footnote 3: Additional disk space is required for the local copy area and is dependent upon the number of views created and the size of the files loaded.




Disk space requirements for individual hosts

Disk space requirements for individual hosts shows the disk space requirement for each type of installation. All the space must be contained in a single disk partition.

ClearCase 7.1.1.8
Platform
Client Features (MB)
All Features (MB)
Windows 32-bit
926 MB
4.25 GB
AIX
577 MB
3.13 GB
Linux x86
1.47 GB
3.96 GB

ClearCase 7.1.2.5
Platform
Client Features (MB)
All Features (MB)
Windows 32-bit
717 MB
4.1 GB
HP IA
716 MB
3.96 GB
Solaris SPARC (Sun5)
1.9 GB
4.7 GB



In addition, any host that will have snapshot view directories needs enough disk space to contain all files loaded into the snapshot views and all view-private files added to the views. The amount of space required depends on the number and sizes of the files in the views.

Any host that will have VOB- or view-storage directories must have enough disk space to contain the files and databases used for storage of VOB- or view-storage directories. The amount of space required depends on the characteristics and use of the VOBs and views.




Basic software requirements

When installing ClearCase on Red Hat Enterprise Linux or SUSE Linux Enterprise Server, note that it may be necessary to have the kernel headers installed. Attempting to run the installation without the kernel headers installed could result in errors if precompiled MVFS modules are not available for the running kernel.



Required operating system patches

Typically, correct Rational ClearCase operation depends on your having installed a number of required or recommended operating system patches. These are available from your hardware vendor. The operating system patches are cumulative. Therefore, if you install a more recent patch, it will include the fix required for Rational ClearCase. See Table 5 for a list of patches recommended or required for all hosts on which Rational ClearCase software runs. There may also be required layered packages, as listed in Layered software packages.

In addition to the patches listed in Table 5, which fix problems known to affect ClearCase functionality, you may require other OS vendor patches to keep your systems functioning properly. Refer to the appropriate vendor web site for information on where to obtain these patches.


For information about Microsoft Windows service pack requirements, refer to technote 1302974.

If you use IBM Rational Rational ClearCase MultiSite, and you are upgrading from clearcase_p2003.06.00-13, or an earlier patch version, you must install the clearcase_p2003.06.00-21 or later user space patch version of Rational ClearCase on the ClearCase registry server machine before you install it on any other ClearCase machine. Failing to do so will result in runtime errors.

Rational ClearCase MultiSite has no known dependencies on operating system patches.

Table 5. Operating System Patches
Patch number Release Purpose Comments
Patches for Solaris SPARC
108727-06 or later
8
NFS patch Required for Rational ClearCase servers that are NFS clients with NFS mounted VOB or view storage (typically using a NAS device).
108434-17
8
Solaris 8 32-bit shared library patch for C++
109147-07
8
SunOS 5.8 Linker patch
111711-11
9
Solaris 9 32-bit shared library patch for C++
112963-10
9
SunOS 5.9 Linker patch
120664-01
10
Solaris 10 library patch Required for running the ClearCase Web and ClearCase Remote Client servers.
Patches for Solarix X86
120665-01
10
Solaris 10 library patch Required for running the ClearCase Web and ClearCase Remote Client servers.
Patches for HP-UX 11.31 (IA64 and PA-RISC)
PHCO_42265 Cumulative libc patch for 11.31 Recommended for use on ClearCase 7.1.2.x and greater, there is a performance fix in the message catalog handling.
Patches for HP-UX 11i (Series 700 and 800)
Bundle11i
11.11 (11i version 1.0)
Required bundle of kernel header files, B11.11.0102.n Required for all Rational ClearCase hosts.
PHKL_24253
11.11
kernel thread "nostop" patches Required for all Rational ClearCase hosts.
PHKL_24254
11.11
PHKL_24255
11.11
PHKL_24256
11.11
PHKL_24257
11.11
PHKL_42310
11.31
Required when using Dynamic Views.
PHKL_37185
11.31
Required to run with local VOBs or Views.
PHNE_28983
ONC/NFS patch (part of kernel thread patch) Required for all Rational ClearCase hosts.
DeviceIDs11i
11.11i
Device ID enablement patch bundle Recommended for all Rational ClearCase hosts.
Patches for IBM AIX
ML1
5.3
Required for all Rational ClearCase hosts.
Patches for SuSE Linux Enterprise Server
SP3

kernel 2.4.21

8
Required for all Rational ClearCase hosts.



Layered software packages

In some cases, correct Rational ClearCase processing requires installation of a layered software package. Before installing Rational ClearCase on a host, see Table 6 to determine whether you need to install such a package.

Table 6. Layered software packages required by Rational ClearCase
Host type Package name Description
Solaris SPARC SUNWsprot SPARC compilers, bundled tools; includes default make.rules file
SUNWbcp Binary compatibility
SUNWscpr Source compatibility, root
SUNWscpu Source compatibility, user
SUNWmfrun Motif Runtime kit to run Rational ClearCase GUIs
HP-UX 11 Upgrade. UPG-TLINK Compatibility links for file system
11 X Window System: X11R6 (or later) Window system

Change History (click to expand)


Related information

Support Policy for ClearCase on Linux

Original publication date

2009/12/16

Cross reference information
Segment Product Component Platform Version Edition
Software Development Rational ClearCase Documentation AIX, HP-UX, Linux, Solaris, Windows 7.1

Product Alias/Synonym

CC

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Document information


More support for:

Rational ClearCase
Documentation

Software version:

7.1, 7.1.0.1, 7.1.0.2, 7.1.1, 7.1.1.1, 7.1.1.2, 7.1.1.3, 7.1.1.4, 7.1.1.5, 7.1.1.6, 7.1.1.7, 7.1.1.8, 7.1.1.9, 7.1.2, 7.1.2.1, 7.1.2.2, 7.1.2.3, 7.1.2.4, 7.1.2.5, 7.1.2.6, 7.1.2.7, 7.1.2.8, 7.1.2.9, 7.1.2.10, 7.1.2.11

Operating system(s):

AIX, HP-UX, Linux, Solaris, Windows

Reference #:

7014067

Modified date:

2012-10-25

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