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Using ODS to clone system disks

Created by dave. Last edited by dave, 15 years and 266 days ago. Viewed 4,350 times. #3
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Using ODS to clone system disks

Some bright wonk usually comes up with an idea like this:

  1. Use ODS (Online Disk Suite) or SDS (Solstice Disk Suite) on system A to mirror the disks.
  2. Take one disk from system A and insert it in system B.
  3. Both system A and system B boot up thinking half their mirrors have failed.
  4. Reconfigure system B so that it is internally system B.
  5. Rebuild mirrors on both systems.
This (can frequently be a proposition which) works. Assuming these OS disks exclusively hold the MetaDB replicas, both systems will come up in a state which can be generally recoverable by following the instructions Replacing a failed disk. The mistake most people make is that they will pull disk1 from system A and insert it so that it is disk0 on system B. This is a good recipie for hosing this disk, since all the metadevices and metadb info indicates that it is really disk1. Put disk1 into system B so that it is disk1, boot from it (ie at the PROM: boot disk1 or as appropriate), then "recover" from your "failure" as in the link above.
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