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Re: [dm-devel] How to change alias name



You could also start with changing the aliases in /etc/multipath.conf,
run multipath, and reload multipathd config through the CLI or restart
it altogether (which is not risky if there is no degraded situation).

Works with recent multipath tools versions at least.

regards,
cvaroqui
http://www.opensvc.com

On mer., 2010-02-03 at 14:16 +0000, --[ UxBoD ]-- wrote:
> ----- "--[ UxBoD ]--" <uxbod splatnix net> wrote:
> 
> > Hi,
> > 
> > we have a situation where we need to rename a server and would also
> > like to change the associate multipath alias.  Is this possible
> > without restarting the whole multipath daemon and killing all our
> > other mounted partitions ?  The server we need to work on is in a
> > shutdown state so the associated partitions are not active.
> > 
> Reading through the documentation if I do:
> 
> dmsetup -v status insguest01
> 
> I see the following with the Name being the alias.
> 
> Name:              insguest01
> State:             ACTIVE
> Read Ahead:        1024
> Tables present:    LIVE
> Open count:        4
> Event number:      1
> Major, minor:      253, 4
> Number of targets: 1
> UUID: mpath-3600144f0e2824900000049df899b0002
> 
> I can then perform the same command on each of its partitions.  If I wanted to rename this guest's devices to insguest02 would I do:
> 
> dmsetup rename insguest01 insguest02
> 
> then update /etc/multipath.conf so that the alias name reflects the new name at boot time ? and would I need to perform the same operation on all the partitions as well ?
> 



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