[ovirt-users] [STORAGE] Adding posix compliant FS

Wed Dec 17 11:38:13 UTC 2014

Hi Julian,

IIUC the you have a self-created lvm, to which you're trying to connect as posix using ovirt.
If that's the case please try to manually change the device's permissions to 36:36 under /dev/<your_VG>.
If that doesn't work try the actual device it's mapped to (which is what vdsm actually tries to mount).
If that also doesn't work please send us the output of:
>> ls -lh /dev/<your_VG> .

Regards,
Vered

----- Original Message -----
> From: "Julian De Marchi" <julian at jdcomputers.com.au>
> To: users at ovirt.org
> Sent: Wednesday, December 17, 2014 3:35:34 AM
> Subject: Re: [ovirt-users] [STORAGE] Adding posix compliant FS
> 
> Think I found some more clues.
> 
> Thread-21910::DEBUG::2014-12-17
> 11:26:07,277::lvm::288::Storage.Misc.excCmd::(cmd) /usr/bin/sudo -n
> /sbin/lvm vgs --config ' devices { preferred_names = ["^/dev/mapper/"]
> ignore_suspended_devices=1 write_cache_state=0
> disable_after_error_count=3 obtain_device_list_from_udev=0 filter = [
> '\''r|.*|'\'' ] }  global {  locking_type=1  prioritise_write_locks=1
> wait_for_locks=1  use_lvmetad=0 }  backup {  retain_min = 50
> retain_days = 0 } ' --noheadings --units b --nosuffix --separator '|'
> --ignoreskippedcluster -o
> uuid,name,attr,size,free,extent_size,extent_count,free_count,tags,vg_mda_size,vg_mda_free,lv_count,pv_count,pv_name
> 3ba06bee-861e-4868-8e89-f29f785bab65 (cwd None)
> Thread-21910::DEBUG::2014-12-17
> 11:26:07,348::lvm::288::Storage.Misc.excCmd::(cmd) FAILED: <err> = '
> Volume group "3ba06bee-861e-4868-8e89-f29f785bab65" not found\n
> Skipping volume group 3ba06bee-861e-4868-8e89-f29f785bab65\n'; <rc> = 5
> Thread-21910::WARNING::2014-12-17
> 11:26:07,350::lvm::370::Storage.LVM::(_reloadvgs) lvm vgs failed: 5 []
> ['  Volume group "3ba06bee-861e-4868-8e89-f29f785bab65" not found', '
> Skipping volume group 3ba06bee-861e-4868-8e89-f29f785bab65']
> Thread-21910::DEBUG::2014-12-17
> 11:26:07,351::lvm::407::Storage.OperationMutex::(_reloadvgs) Operation
> 'lvm reload operation' released the operation mutex
> 
> But I still don't understand what it's trying to do. Just to recap, I do
> see it create the dir and mount the device. But when it fails it umounts
> everything.
> 
> I tried to manually create the DIR it is expecting, but ovirt seems to
> remove it and re-create it which then ends up with root:root. I can see
> this as when I add the storage I run watch ls -lh and can see it all occur.
> 
> Any help would still be greatly appreciated!
> 
> On 12/16/14 19:46, Julian De Marchi wrote:
> > On 16/12/14 17:20, Aharon Canan wrote:
> >> Did you "chown 36:36" the folder to get the right permissions for
> >> adding to ovirt?
> >
> > That's the thing. Ovirt actually creates that dir when I go and try to
> > add the storage. It mounts the LVM device to that dir then fails. In the
> > logs I posted at http://pastebin.com/fzN9ktAX you can see it is failing
> > with a permission denied error. The command that is above the error is
> > touch. I think it is trying to touch a file to ensure all is well and
> > when that fails it gives the error.
> >
> > If I knew where in the code to prefix the touch command with sudo and
> > add a line to the sudoers entry I can test this idea.
> >
> > [...]
> >
> >> ----- Original Message -----
> >>
> >> From: "Julian De Marchi" <julian at jdcomputers.com.au>
> >> To: users at ovirt.org
> >> Sent: Tuesday, December 16, 2014 4:40:04 AM
> >> Subject: Re: [ovirt-users] [STORAGE] Adding posix compliant FS
> >>
> >> On 12/16/14 08:57, Julian De Marchi wrote:
> >>> Heya--
> >>>
> >>> I'm using ovirt 3.5 and trying to add a posix compliant FS to a node in
> >>> my cluster.
> >>>
> >>> The storage I'm trying to add is contained within LVM. Below is a link
> >>> to my log files on the node where I'm trying to attach the storage.
> >>>
> >>> http://pastebin.com/fzN9ktAX
> >>>
> >>> I've read the ovirt manual for adding posix compliant storage and
> >>> believe I'm doing everything correct.
> >>>
> >>> Any help to get this storage added would be great thanks and if I forgot
> >>> to include any info please ask.
> >>
> >> More info to add. I was doing an "ls" on the dir it does the mount in
> >> and saw the dir was owned by root:root with different perms to the ones
> >> mounted via NFS.
> >>
> >> [root at blade01 libvirt]# ls /rhev/data-center/mnt/ -lh
> >> total 20K
> >> drwxrwxrwx 4 root root 4.0K Dec 11 09:00 10.106.200.100:_VM__IMAGES
> >> drwxrwxrwx 3 root root 4.0K Oct 17 09:42 10.106.200.22:_opt_vmexport
> >> drwxrwxrwx 4 root root 4.0K Oct 17 09:39
> >> 10.106.200.22:_var_lib_libvirt_images
> >> drwxr-xr-x 3 root root 4.0K Dec 15 16:52 _dev_mapper_VolGroup-lv__images
> >>
> >> This could explain why the touch command fails.
> >>
> >> Still at a loss over the issue though.
> >
> > _______________________________________________
> > Users mailing list
> > Users at ovirt.org
> > http://lists.ovirt.org/mailman/listinfo/users
> 
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