Channels - HP D5970A - NetServer - LCII Installation And Configuration Manual

Chapter 4

Log the adapter's PCI slot on Worksheet A.


Channels

In this section you determine which physical devices will connect to each SCSI
channel of the adapter. Record the SCSI ID number and physical capacity of each
disk drive in the correct channel on Worksheet A. No two devices on a single
channel can have the same SCSI ID. Physical drives on different channels can be
assigned to the same array.
HP NetRAID Series adapters support all HP hot swap SCSI devices and certain
non-hot swap SCSI devices, such as the Wide hard disk drives installed in the HP
NetServer E 45/50 and the HP NetServer LC II.
As explained in Chapter 1, "Introduction," for each channel, you have either one
internal or one external connection. HP NetRAID Series adapters support the
following channels and connectors:
The HP NetRAID-3Si adapter provides internal and external connectors
for Channels 0, 1, and 2.
The HP NetRAID adapter provides both internal and external connectors
for Channels 0 and 1 and an internal connector for Channel 2. However,
it is possible to make an external connection to Channel 2. See Chapter 5
for details.
The HP NetRAID-1 adapter provides an internal and external connector
for Channel 0.

SCSI Transfer Rate
On Worksheet A, record the SCSI transfer rate for each channel. The default
SCSI transfer rate is Fast, but you can change this rate to Ultra or Ultra2 for the
channels that use it.
All HP NetRAID Series adapters support Ultra SCSI. HP NetRAID-3Si adapters
support Ultra2 drives for internal connections. Refer to your system or external
disk enclosure documentation to determine whether your disk enclosure supports
Ultra or Ultra2 SCSI drives.
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Planning