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Feature ServeRAID-3HB ServeRAID-3H ServeRAID-3L
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
IBM ServeRAID-4 hardware features: The following tables list the hardware
features for the IBM ServeRAID-4 controllers:
Feature ServeRAID-4H ServeRAID-4Mx ServeRAID-4Lx
Arrays (max.) 8 8 8
Battery-backup cache Yes Yes No
Cache memory 128 MB 64 MB 32 MB
Hard disk drives
(max.)
60 30 15
Logical drives (max.) 8 8 8
Microprocessor 266 MHz 100 MHz 100 MHz
SCSI channels 4 2 1
SCSI transfer speed
(max.)
160 MB per sec. 160 MB per sec. 160 MB per sec.
Supported RAID
levels
0, 1, 5, Enhanced-1
(1E), and Enhanced-5
(5E), 00, 10, 1E0, 50
0, 1, 5, Enhanced-1
(1E), and Enhanced-5
(5E), 00, 10, 1E0, 50
0, 1, 5, Enhanced-1
(1E), and Enhanced-5
(5E), 00, 10, 1E0, 50
System PCI data bus 64 bit at 33 MHz 64 bit at 33 to 66
MHz
64 bit at 33 to 66
MHz
Feature ServeRAID-4M ServeRAID-4L
Arrays (max.) 8 8
Battery-backup cache Yes No
Cache memory 64 MB 16 MB
Hard disk drives (max.) 30 15
Logical drives (max.) 8 8
Microprocessor 100 MHz 100 MHz
SCSI channels 2 1
SCSI transfer speed (max.) 160 MB per sec. 160 MB per sec.
Supported RAID levels 0, 1, 5, Enhanced-1 (1E), and
Enhanced-5 (5E), 00, 10, 1E0,
50
0, 1, 5, Enhanced-1 (1E), and
Enhanced-5 (5E), 00, 10, 1E0,
50
System PCI data bus 64 bit at 33 MHz 64 bit at 33 MHz
IBM ServeRAID-5i hardware features: The following tables list the hardware
features for the IBM ServeRAID-5i controller:
Chapter 3. Using ServeRAID Manager 23