Interesting, when i'm using /dev/mapper/KINGSTON_SV300S37A240G_50026B726804F13B1 now the UI give error on the permission setting..

root@ovhost4 ~]# ls -al /dev/mapper/KINGSTON_SV300S37A240G_50026B726804F13B1
lrwxrwxrwx 1 root root 7 Mar 18 08:28 /dev/mapper/KINGSTON_SV300S37A240G_50026B726804F13B1 -> ../dm-3

and the permission on the dm-3

[root@ovhost4 ~]# ls -al /dev/dm-3
brw-rw---- 1 vdsm kvm 253, 3 Mar 18 08:28 /dev/dm-3


how do i change the permission on the sym link..

Thanks




On Tue, Mar 21, 2017 at 10:00 AM, Fred Rolland <frolland@redhat.com> wrote:
Can you try to use /dev/mapper/KINGSTON_SV300S37A240G_50026B726804F13B1 in the UI.
It seems the kernel change the path that we use to mount and then we cannot validate that the mount exists.

It should be anyway better as the mapping could change after reboot.

On Tue, Mar 21, 2017 at 2:20 PM, carl langlois <crl.langlois@gmail.com> wrote:
Here is the /proc/mounts

rootfs / rootfs rw 0 0
sysfs /sys sysfs rw,nosuid,nodev,noexec,relatime 0 0
proc /proc proc rw,nosuid,nodev,noexec,relatime 0 0
devtmpfs /dev devtmpfs rw,nosuid,size=65948884k,nr_inodes=16487221,mode=755 0 0
securityfs /sys/kernel/security securityfs rw,nosuid,nodev,noexec,relatime 0 0
tmpfs /dev/shm tmpfs rw,nosuid,nodev 0 0
devpts /dev/pts devpts rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000 0 0
tmpfs /run tmpfs rw,nosuid,nodev,mode=755 0 0
tmpfs /sys/fs/cgroup tmpfs ro,nosuid,nodev,noexec,mode=755 0 0
cgroup /sys/fs/cgroup/systemd cgroup rw,nosuid,nodev,noexec,relatime,xattr,release_agent=/usr/lib/systemd/systemd-cgroups-agent,name=systemd 0 0
pstore /sys/fs/pstore pstore rw,nosuid,nodev,noexec,relatime 0 0
cgroup /sys/fs/cgroup/cpu,cpuacct cgroup rw,nosuid,nodev,noexec,relatime,cpuacct,cpu 0 0
cgroup /sys/fs/cgroup/net_cls,net_prio cgroup rw,nosuid,nodev,noexec,relatime,net_prio,net_cls 0 0
cgroup /sys/fs/cgroup/pids cgroup rw,nosuid,nodev,noexec,relatime,pids 0 0
cgroup /sys/fs/cgroup/devices cgroup rw,nosuid,nodev,noexec,relatime,devices 0 0
cgroup /sys/fs/cgroup/cpuset cgroup rw,nosuid,nodev,noexec,relatime,cpuset 0 0
cgroup /sys/fs/cgroup/blkio cgroup rw,nosuid,nodev,noexec,relatime,blkio 0 0
cgroup /sys/fs/cgroup/perf_event cgroup rw,nosuid,nodev,noexec,relatime,perf_event 0 0
cgroup /sys/fs/cgroup/memory cgroup rw,nosuid,nodev,noexec,relatime,memory 0 0
cgroup /sys/fs/cgroup/freezer cgroup rw,nosuid,nodev,noexec,relatime,freezer 0 0
cgroup /sys/fs/cgroup/hugetlb cgroup rw,nosuid,nodev,noexec,relatime,hugetlb 0 0
configfs /sys/kernel/config configfs rw,relatime 0 0
/dev/mapper/cl_ovhost1-root / xfs rw,relatime,attr2,inode64,noquota 0 0
systemd-1 /proc/sys/fs/binfmt_misc autofs rw,relatime,fd=35,pgrp=1,timeout=300,minproto=5,maxproto=5,direct 0 0
mqueue /dev/mqueue mqueue rw,relatime 0 0
debugfs /sys/kernel/debug debugfs rw,relatime 0 0
hugetlbfs /dev/hugepages hugetlbfs rw,relatime 0 0
tmpfs /tmp tmpfs rw 0 0
nfsd /proc/fs/nfsd nfsd rw,relatime 0 0
/dev/mapper/cl_ovhost1-home /home xfs rw,relatime,attr2,inode64,noquota 0 0
/dev/sda1 /boot xfs rw,relatime,attr2,inode64,noquota 0 0
sunrpc /var/lib/nfs/rpc_pipefs rpc_pipefs rw,relatime 0 0
tmpfs /run/user/42 tmpfs rw,nosuid,nodev,relatime,size=13192948k,mode=700,uid=42,gid=42 0 0
gvfsd-fuse /run/user/42/gvfs fuse.gvfsd-fuse rw,nosuid,nodev,relatime,user_id=42,group_id=42 0 0
fusectl /sys/fs/fuse/connections fusectl rw,relatime 0 0
ovhost2:/home/exports/defaultdata /rhev/data-center/mnt/ovhost2:_home_exports_defaultdata nfs rw,relatime,vers=3,rsize=1048576,wsize=1048576,namlen=255,soft,nosharecache,proto=tcp,timeo=600,retrans=6,sec=sys,mountaddr=10.8.236.162,mountvers=3,mountport=20048,mountproto=udp,local_lock=none,addr=10.8.236.162 0 0
ovhost2:/home/exports/ISO /rhev/data-center/mnt/ovhost2:_home_exports_ISO nfs rw,relatime,vers=3,rsize=1048576,wsize=1048576,namlen=255,soft,nosharecache,proto=tcp,timeo=600,retrans=6,sec=sys,mountaddr=10.8.236.162,mountvers=3,mountport=20048,mountproto=udp,local_lock=none,addr=10.8.236.162 0 0
ovhost2:/home/exports/data /rhev/data-center/mnt/ovhost2:_home_exports_data nfs rw,relatime,vers=3,rsize=1048576,wsize=1048576,namlen=255,soft,nosharecache,proto=tcp,timeo=600,retrans=6,sec=sys,mountaddr=10.8.236.162,mountvers=3,mountport=20048,mountproto=udp,local_lock=none,addr=10.8.236.162 0 0
tmpfs /run/user/0 tmpfs rw,nosuid,nodev,relatime,size=13192948k,mode=700 0 0
/dev/mapper/KINGSTON_SV300S37A240G_50026B726804F13B1 /rhev/data-center/mnt/_dev_dm-3 ext4 rw,nosuid,relatime,data=ordered 0 0

Thanks you for your help.

Carl


On Tue, Mar 21, 2017 at 6:31 AM, Fred Rolland <frolland@redhat.com> wrote:
Can you provide the content of /proc/mounts after it has being mounted by VDSM ?

On Tue, Mar 21, 2017 at 12:28 PM, carl langlois <crl.langlois@gmail.com> wrote:
Here is the vdsm.log


jsonrpc.Executor/0::ERROR::2017-03-18 08:23:48,317::hsm::2403::Storage.HSM::(connectStorageServer) Could not connect to storageServer
Traceback (most recent call last):
  File "/usr/share/vdsm/storage/hsm.py", line 2400, in connectStorageServer
    conObj.connect()
  File "/usr/share/vdsm/storage/storageServer.py", line 242, in connect
    self.getMountObj().getRecord().fs_file)
  File "/usr/lib/python2.7/site-packages/vdsm/storage/mount.py", line 260, in getRecord
    (self.fs_spec, self.fs_file))
OSError: [Errno 2] Mount of `/dev/dm-3` at `/rhev/data-center/mnt/_dev_dm-3` does not exist


thanks

On Fri, Mar 17, 2017 at 3:06 PM, Fred Rolland <frolland@redhat.com> wrote:
Please send Vdsm log.
Thanks

On Fri, Mar 17, 2017 at 8:46 PM, carl langlois <crl.langlois@gmail.com> wrote:
Hi,

The link that you send is for NFS strorage but i am trying to add a POSIX compliant.

Inline image 1




when i press okey it mount the disk to :

[root@ovhost4 ~]# ls -al /rhev/data-center/mnt/_dev_dm-4/
total 28
drwxr-xr-x. 4 vdsm kvm  4096 Mar 16 12:12 .
drwxr-xr-x. 6 vdsm kvm  4096 Mar 17 13:35 ..
drwxr-xr-x. 2 vdsm kvm 16384 Mar 16 11:42 lost+found
drwxr-xr-x. 4 vdsm kvm  4096 Mar 16 12:12 .Trash-0


and doing a touch with vdsm user work

[root@ovhost4 ~]# sudo -u vdsm touch  /rhev/data-center/mnt/_dev_dm-4/test
[root@ovhost4 ~]# ls -al /rhev/data-center/mnt/_dev_dm-4/
total 28
drwxr-xr-x. 4 vdsm kvm  4096 Mar 17 13:44 .
drwxr-xr-x. 6 vdsm kvm  4096 Mar 17 13:35 ..
drwxr-xr-x. 2 vdsm kvm 16384 Mar 16 11:42 lost+found
-rw-r--r--. 1 vdsm kvm     0 Mar 17 13:44 test
drwxr-xr-x. 4 vdsm kvm  4096 Mar 16 12:12 .Trash-0


But it fail with a general exception error and the storage does not exist in ovirt

any help would be appreciated.


Which log you need to see?

Thanks



Le jeu. 16 mars 2017 17:02, Fred Rolland <frolland@redhat.com> a écrit :
Hi,

Can you check if the folder permissions are OK ?
Check [1] for more details.

Can you share more of the log ?


[1] https://www.ovirt.org/documentation/how-to/troubleshooting/troubleshooting-nfs-storage-issues/

On Thu, Mar 16, 2017 at 7:49 PM, carl langlois <crl.langlois@gmail.com> wrote:
Hi Guys,

I am trying to add a posix FS on one of my host. Ovirt in actually mounting it but fail with "Error while executing action Add Storage Connection: General Exception"

If i look in the vdsm.log i cant see 

sonrpc.Executor/7::DEBUG::2017-03-16 12:39:28,248::fileUtils::209::Storage.fileUtils::(createdir) Creating directory: /rhev/data-center/mnt/_dev_dm-3 mode: None
jsonrpc.Executor/7::DEBUG::2017-03-16 12:39:28,248::fileUtils::218::Storage.fileUtils::(createdir) Using existing directory: /rhev/data-center/mnt/_dev_dm-3
jsonrpc.Executor/7::INFO::2017-03-16 12:39:28,248::mount::226::storage.Mount::(mount) mounting /dev/dm-3 at /rhev/data-center/mnt/_dev_dm-3
jsonrpc.Executor/7::DEBUG::2017-03-16 12:39:28,270::utils::871::storage.Mount::(stopwatch) /rhev/data-center/mnt/_dev_dm-3 mounted: 0.02 seconds
jsonrpc.Executor/7::ERROR::2017-03-16 12:39:28,271::hsm::2403::Storage.HSM::(connectStorageServer) Could not connect to storageServer
Traceback (most recent call last):
  File "/usr/share/vdsm/storage/hsm.py", line 2400, in connectStorageServer
    conObj.connect()
  File "/usr/share/vdsm/storage/storageServer.py", line 242, in connect
    self.getMountObj().getRecord().fs_file)
  File "/usr/lib/python2.7/site-packages/vdsm/storage/mount.py", line 260, in getRecord
    (self.fs_spec, self.fs_file))
OSError: [Errno 2] Mount of `/dev/dm-3` at `/rhev/data-center/mnt/_dev_dm-3` does not exist


any help would be appreciated.

Thanks

CL


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