Removing A Scsi Hard Disk Drive; Installing Memory Modules - IBM LS20 - BladeCenter - 8850 Installation And User Manual

Removing a SCSI hard disk drive

To remove a SCSI hard disk drive, complete the following steps:
1. Read the safety information beginning on page v and "Installation guidelines" on
2. Shut down the operating system, turn off the blade server, and remove the
3. Carefully lay the blade server on a flat, non-conductive surface.
4. Open the blade server cover (see "Opening the blade server cover" on page 17
5. Locate SCSI connector 0 (J11) or SCSI connector 1 (J12).
6. While pulling the blue lever at the front of the hard disk drive tray, slide the drive

Installing memory modules

The following notes describe the types of dual inline memory modules (DIMMs) that
the blade server supports and other information that you must consider when
installing DIMMs:
v The system board contains four DIMM connectors and supports two-way memory
v As of the date of this publication, the DIMM options that are available for the
v For optimum performance, one pair of DIMMs is associated with each
v One pair of DIMMs can be used when two microprocessors are installed, but the
v When you install memory, you must install a pair of matched DIMMs.
v Both DIMMs in a pair must be the same size, speed, type, technology, and
v The second pair does not have to be DIMMs of the same size, speed, type,
v Install only 2.6 V, 184-pin, DDR1, PC3200, VLP, registered SDRAM with ECC
20
AMD Opteron LS20 Type 8850 for IBM BladeCenter: Installation and User's Guide
page 15.
blade server from the BladeCenter unit. See "Removing the blade server from
the BladeCenter unit" on page 16 for instructions.
for instructions).
out of the SCSI connector and disengage it from the drive tray.
interleaving.
blade server are 512 MB, 1 GB, and 2 GB. Depending on the memory
configuration set in blade server BIOS, as of the date of this publication, the
blade server can support a minimum of 1 GB and a maximum of 8 GB of system
memory.
microprocessor. The blade server comes with two DIMMs installed for each
microprocessor.
Pair
Microprocessor 1
Microprocessor 2
blade server will operate at a lower level of efficiency. When one microprocessor
is installed, you can only install DIMMs in the DIMM connectors that are
associated with the microprocessor.
physical design. You can mix compatible DIMMs from different manufacturers.
technology, and physical design as the first pair.
DIMMs. For a current list of supported DIMMs for the blade server, see
http://www.ibm.com/servers/eserver/serverproven/compat/us/ .
DIMM connectors
1 (J31) and 2 (J30)
3 (J4) and 4 (J2)