Dear Sun Managers,
My original question described a situation where I had to move a multipack
containing Disksuite 4.0 metadevices and state databases from one machine
to another. I wanted how to preserve the metadevices and the file systems
they contained and my main concern was that the state databases would become
invalid if moved directly to the second system, where the name of the disk
controller would be different.
The following contributed to a solution:
Dave Holland - email@example.com
Richard Roberto - firstname.lastname@example.org
Jeff Wasilko - email@example.com
Matthew Stier - Matthew.Stier@tddny.fujitsu.com
Rick Reineman - firstname.lastname@example.org
Arthur Darren Dunham - email@example.com
I also finally managed to find some other useful information in the Sun
Managers Summary Archive on http://www.latech.edu/sunman.html:
1. Moving a Storage Array, August 1997
2. How to move DiskSuite metadevices from one system to another, Oct 1996
What I did was to create an md.tab file on both machines with definitions for
the state databases (mddb01) and metadevices (using the metastat -p command
on the machine where the disks were coming from). These md.tab files were
identical, except that c0 was used on one machine and c1 on the other.
I issued the following commands on the machine were the disks were coming
metadb -d -f mddb01
Then I shut down the machine, moved the multipack across and booted with -r.
Then the following commands were issued:
metadb -a -f mddb01
followed by a reboot in order to create new state databases and get access
to the metadevices.
This did it for me, but I believe some additional steps or parameters may
be required for others, depending on the type of metadevices involved. I
only had concatenated stripes (no raid-5 or mirrors).
-- Gunnar Orvarsson Internet: firstname.lastname@example.org Hafrannsoknastofnunin/Fiskistofa Telephone: +354 5697909 (Marine Research Inst./Directorate of Fisheries) Fax: +354 5697990 Ingolfsstraeti 1, Reykjavik, Iceland Home phone: +354 5813253
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