Learn about the SCSI disk-drive enclosure and how to assemble
it.
This SCSI disk-drive enclosure can hold up 24 disk drives. The
enclosure is organized into four groups, with each group containing
six disk drive slots. The enclosure can be used as a stand-alone enclosure
or a rack-mounted drawer.
When connecting with your server, you can connect your SCSI cables
to either a single-initiator repeater card or to a dual-initiator
repeater card on your SCSI disk drive enclosure. The dual-initiator
repeater card allows for high availability and combining groups of
disk drive slots.
To determine the level of software you need to support
the SCSI disk-drive enclosure, see the IBM® Prerequisite.
Tip: Before you connect the enclosure, read the following
information:
- You need to install the SCSI adapter that is used to connect the
enclosure to your system. Either print this procedure or complete
it and return here. To view the PDF file of PCI adapters, approximately 40 MB in size, see
PCI adapters
.
- For systems or partitions with an AIX® or Linux operating system,
you need to have the SCSI adapter information for your operating system.
This will be critical information for configuring the disks after
you have attached the enclosure. You need to print the information
before you begin the procedure. This information is available
from the SCSI PCI Adapters (http://publib.boulder.ibm.com/infocenter/pseries/v5r3/index.jsp?topic=/com.ibm.pseries.doc/hardware_docs/scsipciadapters.htm)
Web site.
- If you are going to configure RAID arrays, ensure that you have
the following number of available disks for each RAID level:
- RAID 0 or 1
- Two drives per array
- RAID 5
- At least three drives per array
- RAID 6
- At least four drives per array
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