Integrated HP NetRAID Controller Config. Guide

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9 For HP NetServer LH 3/3r and
LH 4/4r, Configuring a Second
Channel
NOTE This chapter does NOT apply to HP NetServer
LH 3000/3000r, LH 6000/6000r, and LT 6000r because in
those systems SCSI channels A and B must both operate in the
same mode, both as HP NetRAID mode, or both as non-RAID
LVD SCSI mode.
If you have already configured, and are operating, a one-channel integrated
HP NetRAID system, you can add a second HP NetRAID channel at any time.
This chapter provides instructions on adding a second HP NetRAID channel after
one channel has been operating for a time. (There are no special instructions if
you enable two HP NetRAID channels when you first configure your system.)
WARNING Be sure to follow these instructions exactly. If you don't
follow all of the steps, you may jeopardize the integrity of
your existing data.
Be sure to back up your data--both RAID and non-RAID--
before you configure a second integrated HP NetRAID
channel. It is essential that you back up before you
reconfigure your system.
When you enable a second channel, you will have both Channel 0 and
Channel 1.
• If you initially included SCSI A on HP NetRAID, and now plan to include
SCSI B, then the drives on SCSI A stay associated with HP NetRAID
Channel 0, and the drives on SCSI B are now associated with
HP NetRAID Channel 1.
• If you initially included SCSI B on HP NetRAID, and now plan to include
SCSI A, then the drives on SCSI B become HP NetRAID Channel 1, and
the drives on SCSI A are now associated with HP NetRAID Channel 0.