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

From: "Julian De Marchi" <julian(a)jdcomputers.com.au&gt; To: "Vered Volansky" <vered(a)redhat.com&gt; Cc: users(a)ovirt.org Sent: Wednesday, December 17, 2014 4:29:36 PM Subject: Re: [ovirt-users] [STORAGE] Adding posix compliant FS On 17/12/14 21:38, Vered Volansky wrote: > Hi Julian, Hey Vered, > 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> . Still failed mate after a chmod 36:36. The thing is though, it _does_ mount the device for a moment before failing and unmounting it...

[root@blade01 ~]# ls /dev/VolGroup/lv_images -lh lrwxrwxrwx 1 root root 7 Dec 15 16:52 /dev/VolGroup/lv_images -> ../dm-2

[root@blade01 ~]# ls /dev/dm-2 -lh brw-rw---- 1 vdsm kvm 253, 2 Dec 15 16:52 /dev/dm-2 > > Regards, > Vered > > ----- Original Message ----- >> From: "Julian De Marchi" <julian(a)jdcomputers.com.au&gt; >> To: users(a)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(a)jdcomputers.com.au&gt; >>>> To: users(a)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@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(a)ovirt.org >>> http://lists.ovirt.org/mailman/listinfo/users >> >> _______________________________________________ >> Users mailing list >> Users(a)ovirt.org >> http://lists.ovirt.org/mailman/listinfo/users >> _______________________________________________ Users mailing list Users(a)ovirt.org http://lists.ovirt.org/mailman/listinfo/users