SUMMARY: metadb question

From: Yura Pismerov <>
Date: Thu Jul 03 2003 - 06:53:20 EDT
Big thanks to Bevan Broun, Rick von Richter and Darren Dunham.
The bottom line is, my plan is good as long as I don't reboot the box
during the re-arrangements. Also the replicas will get in sync
automatically upon the creation, so nothing else needs to be done.

	Thanks again everybody.

Yura Pismerov wrote:
> I've made a mistake and initially create just on metadb replica on a
> metadb slice (on each mirrored disk).
> man metadb says "All replicas  that are located on the same slice must
> be created at the same time." So I figured I can not just add one more
> replica to the same slice.
> So the question is, if I can just delete the metadb from one of the
> submirrors and re-create it with more replicas ? Can it be done on the
> fly ? Will the system survive with just one replica for the time I
> re-create them ? Theoretically it should because it is the point of
> having redundant metadb, but I want to make sure.
> Second question. If I do it (re-creating the metadb with more slices)
> successfully on one of the submirrors, I guess I can repeat it on the
> second one, right ? In this case, do I have to do anything else in
> between the procedures so the newly created replicas would get in sync
> with the existing (old one) before I destroy the old one ? Or they get
> in sync instantly upon the creation ?
> Just to clarify, here is what I currently have:
> # metadb
>         flags           first blk       block count
>      a m  p  luo        16              8192
> /dev/dsk/c1t0d0s6
>      a    p  luo        16              8192
> /dev/dsk/c1t1d0s6
> I want to destroy all the replicas on the 2nd partition (2nd disk) using
> metadb -d c1t1d0s6.
> Then I want to re-create 2 or 3 replicas on that slice (metadb -a -c2
> c1t1d0s6).
> Would it work without a problem ? If yes, can I just do the same for the
> first drive or I need to do something else before that ?
> TIA.
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Received on Thu Jul 3 06:53:16 2003

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