Hey Marty, I would post this on dev as well... I can only imagine there is 
still an artifact of the old mount name in the db. I'd do a quick dump and grep 
to see if it exists in some table somewhere....

Ahmad

On Aug 10, 2013, at 5:10 AM, Marty Sweet <[email protected]> wrote:

> Hi all,
> 
> I've hit a problem that I have been chewing on for the past few hours. A
> few months ago I changed the local storage path naming convention (examples
> below) and updated the corresponding records in the cloudstack database
> manually. This works great until old templates are used. I understand I
> could use symlinks to resolve this issue but I would prefer to have a sane
> dataset and a cleaner setup :)
> 
> --> My Physical Volumes <--
> /mount/msa0-enc0-vm0 (OLD /mount/enc0-vm)
> /mount/msa0-enc0-vm1
> /mount/msa0-enc1-vm0 (OLD /mount/enc1-vm)
> /mount/msa0-enc1-vm1
> /mount/msa0-enc2-vm0
> 
> In the database there is no mention of /mount/enc0-vm or /mount/enc1-vm,
> from doing a global search on all content. However, libvirt still manages
> to receive commands to add these templates.
> 
> virStorageBackendFileSystemRefresh:889 : internal error cannot probe
> backing volume info: /mount/enc1-vm/a0932ff2-e97c-446a-85f2-42ad0fb2cab7
> virStorageBackendProbeTarget:118 : internal error cannot probe backing
> volume format: /mount/enc0-vm/8dc8d179-ac43-4475-812a-3bcc3e5d7b43
> 
> These UUID Paths do correspond to templates within the '*
> template_spool_ref' *table which then *presumably *are linked to
> `storage_pool` to pick out the folder 'path'? although this should give the
> correct, new mappings. I can rule out a storage pool issue within libvirt
> as I resolved that issue when I changed the naming convention and have
> rechecked it.
> 
> Unlike VM `volumes`, templates don't seem to possess a folder 'path', the
> only possible field I can assume is `vm_template.checksum`, which is
> obviously questionable, but would explain why a plain text search for the
> old volumes is returning no results.
> 
> So my question is: How does CS compose template paths and from what parts
> within the cloudstack database? If these are encrypted (as I am assuming
> the folder path is somewhere, what is the best way to change these values).
> 
> Thanks in advance,
> Marty Sweet (Rapid2214)

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