IBM Type 1881, Type 8677 manual Storage-expansion option

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 SCSI hard disk drive bays on the SCSI storage expansion unit contains either a hot-swap SCSI hard disk drive or a filler panel.

2.Do not install a drive into IDE connector 2 on the blade server if you intend to also install an I/O expansion option. The I/O expansion option occupies the same area as the second IDE drive.

3.Two IDE drives can be used to implement and manage RAID level-1 under both 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;q302969on the World Wide Web.

42BladeCenter E Type 8677 and 1881: Hardware Maintenance Manual and Troubleshooting Guide