IBM 8677 - BladeCenter Rack-mountable - Power Supply Hardware Maintenance Manual And Troubleshooting Manual page 52

Note: If an I/O expansion option is installed on any blade server, I/O modules for
that network interface must be installed in I/O-module bays 3 and 4 on the
BladeCenter unit. See "I/O (switch) modules" on page 34 for more information.
Storage-expansion option
Some blade servers have a connector for adding a SCSI expansion unit, such as
the IBM HS20 SCSI Storage Expansion Unit. The storage expansion unit supports
up to two hot-swap SCSI hard disk drives. The expansion option is attached directly
to the blade server.
Note: The SCSI controller in the SCSI storage expansion unit supports RAID
level-1 (embedded mirroring).
Important:
1. To ensure proper cooling and system reliability, make sure that each of the
2. Do not install a drive into IDE connector 2 on the blade server if you intend to
3. Two IDE drives can be used to implement and manage RAID level-1 under both
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BladeCenter E Type 8677 and 1881: Hardware Maintenance Manual and Troubleshooting Guide
SCSI hard disk drive bays on the SCSI storage expansion unit contains either a
hot-swap SCSI hard disk drive or a filler panel.
also install an I/O expansion option. The I/O expansion option occupies the
same area as the second IDE drive.
the Linux and Microsoft Windows 2000 operating systems. Details of the
implementation for Microsoft Windows 2000 can be found at
http://support.microsoft.com/default.aspx?scid=kb;EN-US;q302969 on the World
Wide Web.