IBM BladeCanter HS20, Installation And User Manual

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Installing a SCSI storage expansion unit
To use SCSI hard disk drives with your blade server, install a SCSI storage
expansion unit, such as the IBM HS20 SCSI Storage Expansion Unit, on the blade
server. You will then be able to install two 3.5-inch, hot-swap, SCSI, 1-inch (26 mm)
slim-high hard disk drives in the expansion unit, for use by the blade server. The
SCSI controller in the HS20 SCSI storage expansion unit supports RAID level-1
(embedded mirroring).
Important: To avoid potential performance and reliability problems when
configuring or replacing drives in a mirrored configuration, ensure that
the storage capacities and speeds of the drives are identical.
Notes:
1. After you install the SCSI storage expansion unit on your blade server, the
blade server and expansion unit become a single unit that occupies two blade
bays in the BladeCenter unit.
2. To ensure proper cooling and system reliability, make sure that each of the
SCSI hard disk drive bays on the SCSI storage expansion unit contains either a
hot-swap SCSI hard disk drive or a filler panel.
For a list of SCSI hard disk drives supported by your blade server, go to the
ServerProven list at http://www.ibm.com/pc/us/compat/.
The following illustration shows how to install the SCSI storage expansion unit on
the blade server.
Blade-cover
release
Cover
pins
SCSI storage
expansion option
Terminator
Blade-cover
release
Chapter 3. Installing options
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