Hi Cole,
Distro + Version: Ubuntu Server 12.04 LTS
$ virsh version
Compiled against library: libvir 0.9.8
Using library: libvir 0.9.8
Using API: QEMU 0.9.8
Running hypervisor: QEMU 1.0.0
Will restarting libvirt affect / kill all other currently the running VM's (servers)?
Ritchie
-----Original Message-----
From: Cole Robinson [mailto:crobinso@xxxxxxxxxx]
Sent: 10 March 2014 15:41
To: Ritchie P. Fraser; virt-tools-list@xxxxxxxxxx
Subject: Re: Refreshing Storage Pool {Scanned}
On 03/10/2014 11:33 AM, Ritchie P. Fraser wrote:
> Hello,
>
>
>
> I am having issues getting KVM / QEMU / libvirt refreshing one of my
> storage pools.
>
>
>
> I have SAN storage volumes connected through multipath iscsi on the
> host in /dev/mapper - All GOOD so far
>
>
>
> $ ls -l /dev/mapper
>
>
>
> total 0
>
> crw------- 1 root root 10, 236 Feb 20 17:31 control
>
> lrwxrwxrwx 1 root root 8 Mar 10 13:24 mpath-a -> ../dm-5
>
> lrwxrwxrwx 1 root root 8 Mar 10 13:24 mpath-b -> ../dm-4
>
> lrwxrwxrwx 1 root root 8 Mar 10 13:24 mpath-c -> ../dm-2
>
> lrwxrwxrwx 1 root root 8 Mar 10 13:24 mpath-d -> ../dm-11
>
>
>
> I list the storage pools on the KVM / QEMU / visrh host ...
>
>
>
> $ virsh pool-list
>
>
>
> Name State Autostart
>
> -----------------------------------------
>
> archive active yes
>
> multipath_iscsi active yes
>
>
>
> ... and then list the volumes in the multipath_iscsi storage pool ...
>
>
>
> $ virsh vol-list multipath_iscsi
>
>
>
> Name Path
>
> -----------------------------------------
>
> dm-5 /dev/mapper/mpath-a
>
> dm-4 /dev/mapper/mpath-b
>
> dm-2 /dev/mapper/mpath-c
>
>
>
> I see thet my NEW SAN volume does not show up in the listed volumes,
> so I refresh the storage pool and re-list ...
>
>
>
> $ virsh pool-refresh multipath_iscsi
>
> $ virsh vol-list multipath_iscsi
>
>
>
> Name Path
>
> -----------------------------------------
>
> dm-5 /dev/mapper/mpath-a
>
> dm-4 /dev/mapper/mpath-b
>
> dm-2 /dev/mapper/mpath-c
>
>
>
> Uh Oh!, No new volume listed in the storage pool
>
>
>
> *Is there anything else I should be doing?*
>
>
>
> The host is seeing the additional multipath iscsi volume so, there is
> nothing wrong with the volume, iscsi, multipath setup... I just can 't
> get virsh to "add it to the storage pool"
>
>
Please provide your distro + version, and libvirt version.
If you restart libvirt, does it notice the new storage volume?
- Cole
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