IBM ServeRAID-3 hardware features

The following table lists the hardware features for the IBM ServeRAID-3 controllers:

Feature ServeRAID-3HB ServeRAID-3H ServeRAID-3L
Arrays (max.) 8 8 8
Battery-backup cache Yes Optional No
Cache memory 32 MB 32 MB 4 MB
Hard disk drives (max.) 45 45 15
Logical drives (max.) 8 8 8
Microprocessor 40 MHz 40 MHz 25 MHz
SCSI channels 3 3 1
SCSI transfer speed (max.) 80 MB per sec. 80 MB per sec. 80 MB per sec.
Supported RAID levels 0, 1, 5, Enhanced-1 (1E), and Enhanced-5 (5E) 0, 1, 5, Enhanced-1 (1E), and Enhanced-5 (5E) 0, 1, 5, Enhanced-1 (1E), and Enhanced-5 (5E)
System PCI data bus 64 bit 64 bit 32 bit


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