Asset ID:	1-72-1010518.1
Update Date:	2009-01-07
Keywords:

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Solution Type  Problem Resolution Sure

Solution  1010518.1 :   Sun Fire[TM] V440 Server: Target ID Error Message when Using raidctl to Mirror Disk  


PreviouslyPublishedAs
214453

Symptoms
After a new OS (loaded on c1t1d0) installation, the customer tried to:
raidct1 c1t1d0 c1t0d0 and got the following messages:

#raidctl -c c1t1d0 c1t0d0
Primary target ID must be less than secondary target ID.

#raidctl
No RAID volumes found

Resolution
The command is working as it should and is returning the correct message.

To create a raid volume, the disk being mirrored must have a t# lower than
the t# of the mirror disk. This requirement is due to the interaction
between the way Solaris[TM] handles the boot disk and the built-in feature of
the hardware RAID controller that cannot be disabled.

Additional Information
If customers are encountering this situation, they have two options to
resolve it:

1. Choose a different disk with a higher target ID to be the secondary
mirror disk; e.g., c1t2 or c1t3 if you are mirroring c1t1.
2. Reinstall or manually copy the data from the primary target disk with
the higher ID to the intended secondary target disk with the lower ID.
Use this lower ID disk as the primary disk. Then you will be able
to create the mirror as normal, with the primary target ID being lower
than the secondary.  This may require additional steps and modifications
to Solaris files and OBP parameters if the original primary target disk
is being used as the Solaris boot disk.

Product
Sun Fire V440 Server


Internal Comments
For the internal use of Sun Employee's:

The fix for BUG ID: 4818095 made this limitation necessary. Refer to the
evaluation section of the bug documentation for further details.
v440, raidctl, raid, primary, secondary, target, ID, mirror, boot, disk
Previously Published As
75714

Change History
Date: 2004-04-28
User Name: C149439
Action: Approved
Comment: Edited doc.

Gail Waldron
Version: 0
Date: 2004-04-27
User Name: C149439
Action: Accepted
Comment:
Version: 0

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