[zfs-discuss] Panic writing to zvol
dswartz at druber.com
Wed Nov 21 12:56:20 EST 2012
I had a number of VMs (proxmox with ZOL) on a directory (e.g. flat file)
storage and it was working fine for a week or so. Unfortunately, proxmox
doesn't yet support ZFS so to snapshot VMs (for fast backup), you need the
datastore to be LVM. As an expedient, I created a zvol and put an LVM on
top of it. I then started migrating VMs by: backup VM => directory, restore
VM from directory => LVM storage. The first 3 went fine but they are small.
When I tried with a win7 VM with 80GB storage, it got about 74GB into the
write to the zvol and panicked. My server has an IPMI/KVM, but I wasn't
able to get any commands to go at the panic screen (maybe I just did
something wrong, dunno...) I did get a screen capture of the stack trace if
that is helpful? If so, where do I send it?
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