From: Joachim Jaeckel (tru64-unix-managers@jj-it.de)
Date: Sun Dec 14 2003 - 12:29:04 EST
Dear managers,
I have to move a cluster to new disks due to partion/size changes
in our raid array.
Configuration:
Tru64 V5.1b NHD7
TruCluster, yet only one member, second member planed but not setup
Raid Array MSA1000, all disks are in the MSA1000
dsk0c..dsk6c: data (remains unchanged)
dsk7b: cluster_root
dsk7g: cluster_usr
dsk7h: cluster_var
dsk8a: root1_domain (boot disk member1)
dsk8b: swap member1
dsk8h: cnx member1
dsk9: (reserved for member2)
dsk10h: quorum cnx
I have the following idea for moving the cluster to new disks:
01. creating the new logical disks on the msa1000
02. boot member 1 to single user mode, mount all (old) disks
03. lookup new disks with hwmgr (expected: dsk11, dsk12, dsk13, dsk14)
04. disklabel the new disks
05. create advfs domains and filesets on the new disks,
use same fileset names as on old disks
06. copy clusterwide / /var and /usr partitons with
vdump | vrestore to the new disks
07. copy / partion on member1 boot disk to the new disk
with vdump | vrestore
08. copy cnx partition on member1 boot disk to the new disk with dd (?)
09. copy cnx partition on quorum disk to the new quorum disk with dd (?)
10. boot the new member1 boot disk to single user mode
11. swap disknames for old disks and new disks with 'dsfmgr -e'
12. reboot the system, should come up with full funktionalitity
13. delete device files for old disks with 'dsfmgr -d'
14. delete temporary advfs domain names from /etc/fdmns
15. run sys_check
Questions:
Q1: is it possible to copy the cnx partions with dd in from member1
in single user mode, or is it better to boot from cd-rom?
Q2: do you have pointers to the tru64/trucluster documentation where
copying disks is described?
Q3: other remarks?
tnx,
-Joachim
-- Joachim Jaeckel tru64-unix-managers@jj-it.de
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