Configure Mass Storage; Decide Raid Or Non-Raid; Non-Raid Configuration - HP D5970A - NetServer - LCII Manual

3 Configure Mass Storage

Decide RAID or Non-RAID

The disk drives in the secondary hot-swap mass storage cage, along with any non-
hot-swap SCSI devices, can be configured in two different ways:
Redundant Array of Independent Disks (RAID) configuration under
control of the integrated HP NetRAID controller
Non-RAID configuration under the control of the SCSI B controller
Non-RAID configuration (also called "JBOD" or "Just a Bunch of Disks"
configuration) is quick and easy, and it is the factory default for the SCSI B
Channel. All Network Operating Systems (NOSs) supported by your NetServer
can be installed on drives controlled by a non-RAID SCSI controller. This chapter
describes non-RAID configuration.
RAID (Redundant Array of Independent Disks) configuration can enhance
performance and provide fault tolerance (redundancy). For more information, see
the Integrated HP NetRAID Controller Configuration Guide . Some NOSs cannot
be installed on a RAID logical drive. If you want RAID configuration, go to
Appendix A.
NOTE Integrated HP NetRAID does NOT support tape drives.
Configuring both hot-swap mass storage cages as RAID means
that the NetServer's I/O board does NOT support tape drives in
the non-hot-swap shelves.
To configure both hot-swap mass storage cages as RAID and
use a tape drive, order the D5025A SCSI controller board , and
install it to control the tape drive.

Non-RAID Configuration

You connected the secondary hot-swap mass storage cage to the HP NetServer's
SCSI B Channel. The factory default settings exclude SCSI B from the integrated
HP NetRAID controller. This puts the secondary cage on the SCSI B controller,
which also controls any non-hot-swap SCSI devices.
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