IBM totalstorage 200, Руководство по установке оборудования

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This section provides illustrations of the SCSI channel connectors and cable
connectors for the ServeRAID-4L and ServeRAID 4-H adapters. The LEDs on the
adapters indicate activity on the SCSI channels and provide diagnostic information
for trained service technicians. Table 5 lists the standard features of the ServeRAID
adapter installed for each model.
Table 5. Standard features of ServeRAID-4L and ServeRAID-4H
Feature ServeRAID-4L (Model 200) ServeRAID-4H (Model 225)
Arrays (maximum) 8 8
Battery-backup cache No Yes
Cache memory 16 MB 128 MB
Logical drives (maximum) 8 8
SCSI channels 1 4
SCSI transfer speed
(maximum) 160 MB/s 160 MB/s
Supported RAID levels 0, 1, 5, Enhanced-1 (1E),
and Enhanced-5 (E5), 00, 10,
1E0, 50 0, 1, 5, Enhanced-1 (1E),
and Enhanced-5 (E5), 00, 10,
1E0, 50
System PCI data bus 64-bit at 33 MHz 64-bit at 33 MHz
To install an adapter:
Attention: When you handle electrostatic discharge-sensitive devices (ESDs),
take precautions to avoid damage from static electricity. For details on handling
these devices, refer to “Handling electrostatic discharge-sensitive devices” on
page 76.
1. Review the safety precautions listed in Statement 1 and Statement 5 in
“Translated safety notices” on page 77.
2. Switch off the appliance and peripheral devices and disconnect all external
cables and power cords; then, remove the cover. See “Removing the cover
(Model 200)” on page 40 for details.
3. Determine which expansion slot you will use for the adapter.
Note: Check the instructions that come with the adapter for any requirements
or restrictions.
Chapter 3. Adding and replacing components
59