I have a question regarding the behavior of vgchange -a n on lvm2 when
there are disk failures. Specifically the following:
1. vgchange -a y vg00
2. disconnect the disks
3. vgchange -a n vg00
Now this fails with many messages, such as:
[root@harris ~]# vgchange -a n vg00
/dev/sda1: read failed after 0 of 4096 at 0: Input/output error
/dev/sdb1: read failed after 0 of 4096 at 0: Input/output error
/dev/sdb2: read failed after 0 of 4096 at 0: Input/output error
/dev/sdc1: read failed after 0 of 4096 at 0: Input/output error
/dev/sda: read failed after 0 of 1024 at 0: Input/output error
/dev/sda: read failed after 0 of 1024 at 312475648: Input/output error
/dev/sda: read failed after 0 of 2048 at 0: Input/output error
/dev/sda1: read failed after 0 of 4096 at 1966080: Input/output error
/dev/sda1: read failed after 0 of 4096 at 0: Input/output error
/dev/sda2: read failed after 0 of 4096 at 310312960: Input/output error
/dev/sda2: read failed after 0 of 4096 at 0: Input/output error
/dev/sdb: read failed after 0 of 1024 at 0: Input/output error
/dev/sdb: read failed after 0 of 1024 at 312475648: Input/output error
/dev/sdb: read failed after 0 of 2048 at 0: Input/output error
/dev/sdb1: read failed after 0 of 4096 at 1966080: Input/output error
/dev/sdb1: read failed after 0 of 4096 at 0: Input/output error
/dev/sdb2: read failed after 0 of 4096 at 310312960: Input/output error
/dev/sdb2: read failed after 0 of 4096 at 0: Input/output error
/dev/sdc: read failed after 0 of 1024 at 0: Input/output error
/dev/sdc: read failed after 0 of 1024 at 16384000: Input/output error
/dev/sdc: read failed after 0 of 2048 at 0: Input/output error
/dev/sdc1: read failed after 0 of 4096 at 16318464: Input/output error
/dev/sdc1: read failed after 0 of 4096 at 0: Input/output error
Unable to find volume group "vg00"
[root@harris ~]#
This the vg is not deactivated. Now this is different behavior that with
lvm1 which would just proceed as normal. My question is that is there a
way to force the deactivation to occur in this case?
Thanks!
--
===========
John DeFranco Hewlett Packard Company
john.defranco@hp.com Availability Clusters Solution Lab
phone: 408 447-7543 19111 Pruneridge Ave., M/S 4101
fax: 408 447-0056 Cupertino, CA 95014
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