Dafna Ron wrote:
you don't have to reconfigure engine to create iscsi pool.
you can create multiple pools, the only limitation is that you will
need a host for the each of the DCs.
but you can move one host from one DC to another...
so if you have 2 hosts just create a new DC and move one of the hosts
there.
I think that the direct lun is only for iscsi and fiber but I can give
you a 100% certainty answer on Monday.
I don't think its supported for NFS... I can check for you on Monday
for sure.
On 09/27/2013 03:28 PM, Saurabh wrote:
On 27/09/13 19:52, Dafna Ron wrote:
wait :)
the first screen shot was of local storage and internal disk type -
not related at all to the direct lun feature.
the second screen shot is for iscsi storage pool.
it shows a current connected lun that you have.
try this:
create a new target lun.
log in to the webadmin -> disks tab -> new disk
select the Default DC (which is your iscsi storage type) -> expend
the "discover tartest"
put in your storage server (where you created the lun) -> discover
you should than see a list of targets -> log in
select the target and press OK.
On 09/27/2013 03:11 PM, Saurabh wrote:
On 27/09/13 19:14, Dafna Ron wrote:
the output is empty in both your outpit and the logs.
This is the part in the log that shows that you do not have any
devices: return: []
when you create a new disk and select the NFS DC- can you please
send me the screen shot of that?
On 09/27/2013 02:41 PM, Saurabh wrote:
On 27/09/13 18:40, Dafna Ron wrote:
I am not sure direct lun will be supported for an NFS pool...
can you try the same from iscsi pool?
is this lun being used somewhere else or did you create a new one?
you can run vdsClient -s 0 getDeviceList to see the list of the
available luns and if the status is free or not.
(it should also in the logs (engine and vdsm) when you discover
the luns from the webadmin.
On 09/27/2013 01:43 PM, Saurabh wrote:
Hi guys, I am running ovirt with NFS as storage pool.
Everything is working quite fine for me. The only problem is I
could not add the a new iscsi disk in Disk tab. When I go to
the Disk tab there is an option of adding new disk from
internal storage and another option is add External (Direct
Lun). When I opt for the External (Direct LUN), I am able to
discover the Lun but could not log in to that lun using the
ovirt web console. Whereas when I try to login to that lun
using the isciadm in command line I am able to login. Any help??
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I have created a new Lun for this purpose only and it is not
being used anywhere.
In order to try an iscsi pool I will have to reconfigure the
engine, because during the engine setup I opted for nfs.
This is the output when I run this command.
[root@ovirt ~]# vdsClient -s 0 getDeviceList
[]
this is log snippet from engine.log when I discover and try to
login to that lun.
#################################################################################################
013-09-27 14:34:55,592 INFO
[org.ovirt.engine.core.vdsbroker.vdsbroker.DiscoverSendTargetsVDSCommand]
(ajp--127.0.0.1-8702-11) START,
DiscoverSendTargetsVDSCommand(HostName = 192.168.100.59, HostId =
168842b9-071b-4c64-a22d-07ae1e63830b, connection={ id: null,
connection: 192.168.100.160, iqn: null, vfsType: null,
mountOptions: null, nfsVersion: null, nfsRetrans: null, nfsTimeo:
null };), log id: 2e12b97
2013-09-27 14:34:55,653 INFO
[org.ovirt.engine.core.vdsbroker.vdsbroker.DiscoverSendTargetsVDSCommand]
(ajp--127.0.0.1-8702-11) FINISH, DiscoverSendTargetsVDSCommand,
return: [{ id: null, connection: 192.168.100.160, iqn:
iqn.2013.26.ovirt.techblue.lv001, vfsType: null, mountOptions:
null, nfsVersion: null, nfsRetrans: null, nfsTimeo: null };], log
id: 2e12b97
2013-09-27 14:36:25,877 INFO
[org.ovirt.engine.core.bll.storage.ConnectStorageToVdsCommand]
(ajp--127.0.0.1-8702-2) Running command:
ConnectStorageToVdsCommand internal: false. Entities affected :
ID: aaa00000-0000-0000-0000-123456789aaa Type: System
2013-09-27 14:36:25,880 INFO
[org.ovirt.engine.core.vdsbroker.vdsbroker.ConnectStorageServerVDSCommand]
(ajp--127.0.0.1-8702-2) START,
ConnectStorageServerVDSCommand(HostName = 192.168.100.59, HostId
= 168842b9-071b-4c64-a22d-07ae1e63830b, storagePoolId =
00000000-0000-0000-0000-000000000000, storageType = ISCSI,
connectionList = [{ id: null, connection: 192.168.100.160, iqn:
iqn.2013.26.ovirt.techblue.lv001, vfsType: null, mountOptions:
null, nfsVersion: null, nfsRetrans: null, nfsTimeo: null };]),
log id: 5fca13a4
2013-09-27 14:36:26,012 INFO
[org.ovirt.engine.core.vdsbroker.vdsbroker.ConnectStorageServerVDSCommand]
(ajp--127.0.0.1-8702-2) FINISH, ConnectStorageServerVDSCommand,
return: {00000000-0000-0000-0000-000000000000=0}, log id: 5fca13a4
2013-09-27 14:36:26,098 INFO
[org.ovirt.engine.core.vdsbroker.vdsbroker.GetDeviceListVDSCommand]
(ajp--127.0.0.1-8702-12) START, GetDeviceListVDSCommand(HostName
= 192.168.100.59, HostId = 168842b9-071b-4c64-a22d-07ae1e63830b,
storageType=ISCSI), log id: 20fb893b
2013-09-27 14:36:29,376 INFO
[org.ovirt.engine.core.vdsbroker.vdsbroker.GetDeviceListVDSCommand]
(ajp--127.0.0.1-8702-12) FINISH, GetDeviceListVDSCommand, return:
[], log id: 20fb893b
######################################################################################################
Here I am sending you the two screenshots, one is when I am adding
the disk from the Local-storage that is NFS, and another is the
Direct lun.
You can see that I am able to discover it but could not log into it.
ok so there is no means we can use an iscsi disk in a Data center
whoose default storage is NFS?
If I read the posts and interpret them correctly then it should work. I
have a 'dummy' nfs DataCenter where I have lots of VMs which are using
dedicated LUNS from an Equallogic storage array.
Just make sure that the node that you select has access rights on the
LUN(s) that you want connected and that that LUN isn't already in use.
We use this setup as an migration path to move the disk storage from
ISCSI to NFS to GlusterFS.
I'm using oVirt-3.2.2 on Centos-6.4, feel free to ask further question.
Regards,
Joop
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