HSG80 - special device names

From: bboddy - Bill Boddy <BBODDY_at_acxiom.co.uk>
Date: Tue, 14 Dec 1999 10:37:38 +0000

Last weekend I upgraded a pair of HSZ70's for HSG80's.
It all went fine ( no loss of data ) except ...
Before the upgrade I had on the HSZ70's the following storage ...

All RAIDsets are 6 member RAID 5.

RAID Set name Unit Name What Unix sees the device as

R1 D0 rz8
R2 D100 rz9
R3 D200 rz10
R4 D300 rz11



After the upgrade they became the following.... ( I couldn't keep the same
Unit numbers
because the HSG80's support unit numbers from d0 - d199 only )

R1 D0 rz9
R2 D100 rz8
R3 D1 rzb9
R4 D101 rzb8

Therefore as you can see , I can't seem to grasp the logic of why D0 became
rz9 ( i.e. doesn't fit the algorythm
of 8 x BUS number + SCSI ID number ) etc.

Also if I had named a unit as D99 , what would that have become ?




Bill Boddy
Unix System Administrator
Acxiom Ltd.
0191 525 7348
bboddy_at_acxiom.co.uk
Received on Tue Dec 14 1999 - 10:42:07 NZDT

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