Hardware Installation and User’s Guide
17
Hardware Specifications and Features
— Caldera Linux 3.1
— Mandrake* Linux 8.1
— TurboLinux* 7.0 Server
•
SCO UnixWare 7.1.1
•
FreeBSD* 4.4 and 4.5
•
Linux (2.2 kernal)
— Red Hat Linux 7.0
3.3
Supported SCSI Technology
The RAID adapter supports up to 15 SCSI devices per SCSI channel. It supports up to 15
hard disk drives (or 14 hard disks drives if one of the SCSI ID’s is occupied by a SAF-TE
processor) per channel of the SCSI controller (30 disk drives total for an MROMB
application, assuming a dual channel SCSI controller on the motherboard).
The GDT8500RZ firmware supports the following SCSI controllers on the motherboard:
•
SCSI Ultra160
— Adaptec* AIC-7899x dual-channel Ultra160 SCSI controller
— Adaptec AIC-7892x single-channel Ultra160 SCSI controller
•
SCSI Ultra320
— Adaptec AIC-7901 single-channel Ultra320 SCSI controller
— Adaptec AIC-7902 dual-channel Ultra320 SCSI controller
3.3.1
Supported Hard Drive Technology
The ICP RAID controller supports both Single-ended (SE) and Low Voltage Differential
(LVD) devices but it is recommended that you use only one type of drive technology (SE
or LVD) on any one channel at a time.
The ICP RAID controller supports single-ended drives which operate at up to 40MB/sec
depending upon the speed of the drives attached.
The ICP RAID controller supports Ultra-2 LVD SCSI devices operating at up to 80MB/
sec, Ultra160 LVD SCSI devices operating at up to 160MB/sec, and Ultra320 LVD SCSI
devices operating at up to 320MB/sec.
Note:
If both SE and LVD devices are attached to the same channel/bus, the entire bus will
operate at the single-ended mode, which is a maximum of 40 MB per second. See
Table 3-4
for the maximum cable length distances that apply to each mode.
The ICP RAID controller is designed to use an Ultra160 or Ultra320 SCSI controller
implementation on the motherboard and is backward compatible with older SCSI hard
drive specifications. See
Table 3-4
for the SCSI standards supported.
