oVIRT 4.1 / iSCSI Multipathing
by Devin Acosta
I am using the latest release of oVIRT 4.1.3, and I am connecting a Dell
Compelent SAN that has 2 fault domains each on a separate VLAN that I have
attached to oVIRT. From what I understand I am suppose to go into “iSCSI
Multipathing” option and add a BOND of the iSCSI interfaces. I have done
this selecting the 2 logical networks together for iSCSI. I notice that
there is an option below to select Storage Targets but if I select the
storage targets below with the logical networks the the cluster goes crazy
and appears to be mad. Storage, Nodes, and everything goes offline even
thought I have NFS also attached to the cluster.
How should this best be configured. What we notice that happens is when the
server reboots it seems to log into the SAN correctly but according the the
Dell SAN it is only logged into once controller. So only pulls both fault
domains from a single controller.
Please Advise.
Devin
6 years, 1 month
Any Kind of Storage IO Limitation?
by Thomas Fecke
--_000_047d22559fb543f0ab04092ca22f4f05DR1XEXCH01Besetcorp_
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Hey Guys,
I got a kind of strange Question:
We got some Hypervisors connected to an x86 Storage ( NFS )
The Machines are connected via 10 Gbit with that Storage. When I try to rsy=
nc some Files we reach almost the Maximum Bandwidth.
But, when I copy some VM=B4s, Templates or do something Stroage related in =
Ovirt I just can reach 1000 M/bit.
Is there any kind of "Config Limitation"?
My biggest Problem:
We work a lot with Templates. When I deploy 10 VM=B4s based on one Template=
the VM=B4s are getting very slow and the Storage seems to be the Problem
Thanks a lot
--_000_047d22559fb543f0ab04092ca22f4f05DR1XEXCH01Besetcorp_
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<meta name=3D"Generator" content=3D"Microsoft Word 15 (filtered medium)">
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<p class=3D"MsoNormal">Hey Guys,<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal">I got a kind of strange Question: <o:p></o:p></p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal">We got some Hypervisors connected to an x86 Storage =
( NFS )<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal">The Machines are connected via 10 Gbit with that Sto=
rage. When I try to rsync some Files we reach almost the Maximum Bandwidth.=
<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal">But, when I copy some VM=B4s, Templates or do someth=
ing Stroage related in Ovirt I just can reach 1000 M/bit.
<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal">Is there any kind of “Config Limitation”=
?<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal">My biggest Problem:<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal">We work a lot with Templates. When I deploy 10 VM=B4=
s based on one Template the VM=B4s are getting very slow and the Storage se=
ems to be the Problem<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal">Thanks a lot <o:p></o:p></p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal"><span style=3D"font-size:12.0pt;font-family:"Ca=
libri Light",sans-serif;mso-fareast-language:EN-GB"><o:p> </o:p><=
/span></p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
</div>
</body>
</html>
--_000_047d22559fb543f0ab04092ca22f4f05DR1XEXCH01Besetcorp_--
6 years, 1 month
Can't move/copy VM disks between Data Centers
by Andrei V
--Apple-Mail=_36201DCF-3630-4952-83E8-1C1F6354AA6E
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charset=utf-8
Hi,
I have oVirt setup, separate PC host engine + 2 nodes (#10 + #11) with =
local storage domains (internal RAIDs).
1st node #10 is currently active and can=E2=80=99t be turned off.
Since oVirt doesn=E2=80=99t support more then 1 host in data center with =
local storage domain as described here:
http://lists.ovirt.org/pipermail/users/2018-January/086118.html =
<http://lists.ovirt.org/pipermail/users/2018-January/086118.html>
defined another data center with 1 node #11.
Problem:=20
1) can=E2=80=99t copy or move VM disks from node #10 (even of inactive =
VMs) to node #11, this node is NOT being shown as possible destination.
2) can=E2=80=99t migrate active VMs to node #11.
3) Added NFS shares to data center #1 -> node #10, but can=E2=80=99t =
change data center #1 -> storage type to Shared, because this operation =
requires detachment of local storage domains, which is not possible, =
several VMs are active and can=E2=80=99t be stopped.
VM disks placed on local storage domains because of performance =
limitations of our 1Gbit network.=20
2 VMs running our accounting/inventory control system, and are critical =
to NFS storage performance limits.
How to solve this problem ?
Thanks in advance.
Andrei
--Apple-Mail=_36201DCF-3630-4952-83E8-1C1F6354AA6E
Content-Transfer-Encoding: quoted-printable
Content-Type: text/html;
charset=utf-8
<html><head><meta http-equiv=3D"Content-Type" content=3D"text/html; =
charset=3Dutf-8"></head><body style=3D"word-wrap: break-word; =
-webkit-nbsp-mode: space; line-break: after-white-space;" =
class=3D"">Hi,<div class=3D""><br class=3D""></div><div class=3D"">I =
have oVirt setup, separate PC host engine + 2 nodes (#10 + #11) =
with local storage domains (internal RAIDs).</div><div class=3D"">1st =
node #10 is currently active and can=E2=80=99t be turned off.</div><div =
class=3D""><br class=3D""></div><div class=3D"">Since oVirt doesn=E2=80=99=
t support more then 1 host in data center with local storage domain as =
described here:</div><div class=3D""><a =
href=3D"http://lists.ovirt.org/pipermail/users/2018-January/086118.html" =
class=3D"">http://lists.ovirt.org/pipermail/users/2018-January/086118.html=
</a><br class=3D"">defined another data center with 1 node =
#11.</div><div class=3D""><br class=3D""></div><div =
class=3D"">Problem: </div><div class=3D"">1) can=E2=80=99t copy or =
move VM disks from node #10 (even of inactive VMs) to node #11, this =
node is NOT being shown as possible destination.</div><div class=3D"">2) =
can=E2=80=99t migrate active VMs to node #11.</div><div class=3D"">3) =
Added NFS shares to data center #1 -> node #10, but can=E2=80=99t =
change data center #1 -> storage type to Shared, because this =
operation requires detachment of local storage domains, which is not =
possible, several VMs are active and can=E2=80=99t be stopped.</div><div =
class=3D""><br class=3D""></div><div class=3D"">VM disks placed on local =
storage domains because of performance limitations of our 1Gbit =
network. </div><div class=3D"">2 VMs running our =
accounting/inventory control system, and are critical to NFS storage =
performance limits.</div><div class=3D""><br class=3D""></div><div =
class=3D"">How to solve this problem ?</div><div class=3D"">Thanks in =
advance.</div><div class=3D""><br class=3D""></div><div =
class=3D"">Andrei</div><div class=3D""><br class=3D""></div></body></html>=
--Apple-Mail=_36201DCF-3630-4952-83E8-1C1F6354AA6E--
6 years, 1 month
Installation using virtual machines
by Anastasiya Ruzhanskaya
Hello!
I have read the documentation on the web site, but still it is not clear
for me : is it possible to install ovirt engine as well as guests on
virtual machines, not on the real hardware?
6 years, 1 month
Ovirt 4.2.1 Storage with Fibre Channel Protocol
by Sérgio Marques
Hello,
I'm new in Ovirt, loving it, but i'm having some doubts when it comes to
add FCP Storage. I have two clusters, one called Production and the other
Development, each cluster with two nodes and i want to configure Data
Domain. My doubts are:
1 - Every nodes must have connection to de FCP? If only de SPM have it, if
it falls, who can connect to the storage?
2 - I have only one LUN in EVA HSV300 for me and i want to add three
Storage Domains (Data, ISO e Export). Is it possible? How? This is because
when i add data storage domain and choose the only LUN available it warn me
that all data is going to be lost "This operation might be unrecoverable
and destructive"
3 - Any advice about best practices about implementation?
Thanks
--
Cumprimentos,
Sérgio Marques
6 years, 1 month
Problem Storage Iscsi
by João Floriano - Magnet
Hello everyone!
I am facing the following problem with ovirt 4.2.1, out of nowhere all
virtual machines are paused and only return operals if log in via ssh on
the host and execute a "virsh destroy domain", it is necessary to
reactivate disk and network after this process. In the events I get the
following message: VM X has been paused due to storage I / O problem.
Currently I have iscsi storage configured on a server with target and based
on some test I did not identify problems of communication of the hosts to
the storage
can you help me?
--
6 years, 1 month
VM paused rather than migrate to another hosts
by Terry hey
Dear all,
I am testing iSCSI bonding failover test on oVirt, but i observed that VM
were paused and did not migrate to another host. Please see the details as
follows.
I have two hypervisors. Since they are running iLO 5 and oVirt 4.2 cannot
support iLO 5, thus i cannot setup power management.
For the cluster setting, I set "Migrate Virtual Machines" under the
Migration Policy.
For each hypervisor, I bonded two iSCSI interface as bond 1.
I created one Virtual machine and enable high availability on it.
Also, I created one Virtual machine and did not enable high availability on
it.
When i shutdown one of the iSCSI interface, nothing happened.
But when i shutdown both iSCSI interface, VM in that hosts were paused and
did not migrate to another hosts. Is this behavior normal or i miss
something?
Thank you all of you.
Regards,
Terry Hung
6 years, 1 month
VMs stuck in migrating state
by nicolas＠devels.es
Hi,
We're running 4.1.9 and during the weekend we had a storage issue that
seemed to leave some hosts in an strange state. One of the hosts has
almost all VMs migrating (although it seems to not actually being
migrating them) and the migration state cannot be cancelled.
When clicking on one of those machines and selecting 'Cancel migration',
in the ovirt-engine log I see:
2018-02-26 08:52:07,588Z INFO
[org.ovirt.engine.core.vdsbroker.vdsbroker.CancelMigrateVDSCommand]
(org.ovirt.thread.pool-6-thread-36)
[887dfbf9-dece-4f7b-90a8-dac02b849b7f] HostName = host2.domain.com
2018-02-26 08:52:07,588Z ERROR
[org.ovirt.engine.core.vdsbroker.vdsbroker.CancelMigrateVDSCommand]
(org.ovirt.thread.pool-6-thread-36)
[887dfbf9-dece-4f7b-90a8-dac02b849b7f] Command
'CancelMigrateVDSCommand(HostName = host2.domain.com,
CancelMigrationVDSParameters:{runAsync='true',
hostId='e63b9146-10c4-47ad-bd6c-f053a8c5b4eb',
vmId='26d37e43-32e2-4e55-9c1e-1438518d5021'})' execution failed:
VDSGenericException: VDSErrorException: Failed to CancelMigrateVDS,
error = Migration process cancelled, code = 82
On the vdsm side I see:
2018-02-26 08:56:19,396+0000 INFO (jsonrpc/0) [vdsm.api] START
migrateCancel() from=::ffff:10.X.X.X,54654,
flow_id=874d36d7-63f5-4b71-8a4d-6d9f3ec65858 (api:46)
2018-02-26 08:56:19,398+0000 INFO (jsonrpc/0) [vdsm.api] FINISH
migrateCancel return={'status': {'message': 'Migration process
cancelled', 'code': 82}, 'progress': 0} from=::ffff:10.X.X.X,54654,
flow_id=874d36d7-63f5-4b71-8a4d-6d9f3ec65858 (api:52)
So no error on the vdsm side log.
I already tried restarting ovirt-engine but it didn't work.
Could someone shed some light on how to cancel the migration status for
these machines? All of them seem to be running on the same host.
Thanks.
6 years, 1 month
Q: VM disk speed penalty NFS vs Local data center storage
by Andrei Verovski
--Apple-Mail=_C43BDBF4-3002-413D-82F4-FAC738EF31F9
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charset=utf-8
Hi,
Since oVirt doesn=E2=80=99t support more then 1 host in data center with =
local storage domain as described here:
http://lists.ovirt.org/pipermail/users/2018-January/086118.html =
<http://lists.ovirt.org/pipermail/users/2018-January/086118.html>
I have to setup NFS server on node with VMs (on same node) access via =
NFS.
10 GB shared storage is in the future plans yet right now have only 2 =
nodes with local RAID on each.
Q: What is VM disk speed penalty (approx %) NFS vs Local RAID in oVirt =
data center storage?=20
Currently I have 2 VMs running our accounting/inventory control system =
which are critical to storage performance limits.
2 other VMs have very low disk activity.
Thanks in advance
Andrei Verovski
--Apple-Mail=_C43BDBF4-3002-413D-82F4-FAC738EF31F9
Content-Transfer-Encoding: quoted-printable
Content-Type: text/html;
charset=utf-8
<html><head><meta http-equiv=3D"Content-Type" content=3D"text/html; =
charset=3Dutf-8"></head><body style=3D"word-wrap: break-word; =
-webkit-nbsp-mode: space; line-break: after-white-space;" =
class=3D"">Hi,<div class=3D""><br class=3D""></div><div class=3D""><div =
class=3D"">Since oVirt doesn=E2=80=99t support more then 1 host in data =
center with local storage domain as described here:</div><div =
class=3D""><a =
href=3D"http://lists.ovirt.org/pipermail/users/2018-January/086118.html" =
class=3D"">http://lists.ovirt.org/pipermail/users/2018-January/086118.html=
</a></div><div class=3D""><br class=3D""></div><div class=3D"">I have to =
setup NFS server on node with VMs (on same node) access via =
NFS.</div><div class=3D"">10 GB shared storage is in the future plans =
yet right now have only 2 nodes with local RAID on each.</div><div =
class=3D""><br class=3D""></div><div class=3D"">Q: What is VM disk speed =
penalty (approx %) NFS vs Local RAID in oVirt data center =
storage? </div><div class=3D"">Currently I have 2 VMs running our =
accounting/inventory control system which are critical to storage =
performance limits.</div></div><div class=3D"">2 other VMs have very low =
disk activity.</div><div class=3D""><br class=3D""></div><div =
class=3D"">Thanks in advance</div><div class=3D"">Andrei =
Verovski</div><div class=3D""><br class=3D""></div></body></html>=
--Apple-Mail=_C43BDBF4-3002-413D-82F4-FAC738EF31F9--
6 years, 1 month
cannot remove vm.
by nicola gentile
Hi,
I have a problem. I try to remove a pool and than I remove every vm
but one of this display the message "Cannot remove VM. Related
operation is currently in progress. Please try again later."
I try to unlock with this command
PGPASSWORD=... /usr/share/ovirt-engine/setup/dbutils/unlock_entity.sh
-t all -u engine
but not working
in /var/log/ovirt-engine/engine.log
2018-03-01 17:02:47,799+01 INFO
[org.ovirt.engine.core.bll.RemoveVmCommand] (default task-33)
[0217d710-afb6-4450-9897-02748d871aa1] Failed to Acquire Lock to
object 'EngineLock:{exclusiveLocks='[d623ad44-a645-4fd0-9993-d21374e99eb5=VM]',
sharedLocks=''}'
2018-03-01 17:02:47,799+01 WARN
[org.ovirt.engine.core.bll.RemoveVmCommand] (default task-33)
[0217d710-afb6-4450-9897-02748d871aa1] Validation of action 'RemoveVm'
failed for user admin@internal-authz. Reasons:
VAR__ACTION__REMOVE,VAR__TYPE__VM,ACTION_TYPE_FAILED_OBJECT_LOCKED
please help
thanks
Nick
6 years, 1 month
