Re: [ovirt-users] best way to remove SAN lun

Hello Nir, I think I was not clear in my explanations, let me try again : we have a oVirt 4.0.5.5 cluster with multiple hosts (centos 7.2). In this cluster, we added a SAN volume (iscsi) a few months ago directly in GUI Later we had to remove a DATA volume (SAN iscsi). Below the steps we have

Re: [ovirt-users] Replicated Glusterfs on top of ZFS

Why are you using an arbitrator if all your HW configs are identical? I’d use a true replica 3 in this case. Also in my experience with gluster and vm hosting, the ZIL/slog degrades write performance unless it’s a truly dedicated disk. But I have 8 spinners backing my ZFS volumes, so trying to

[ovirt-users] oVirt Hosted Engine Setup fails

Hello there, I am having some trouble when deploying an oVirt 4.1 hosted engine installation. When I m just to end the installation and the hosted engine setup script is about to start the Vm engine (appliance) it fails saying "The VM is not powring up". If I double check the service vdsmd i

Re: [ovirt-users] Staring cluster Hosted Engine stuck - failed liveliness check

VM Up not responding - Yes that seems to be the case. I did actually try hosted-engine --console hosted-engine --console The engine VM is running on this host Connected to domain HostedEngine Escape character is ^] error: internal error: cannot find character device On 3 March 2017 at 08:39,

Re: [ovirt-users] [Gluster-users] Hot to force glusterfs to use RDMA?

I think there are some bug in the vdsmd checks; 2017-03-03 11:15:42,413 ERROR (jsonrpc/7) [storage.HSM] Could not connect to storageServer (hsm:2391) Traceback (most recent call last): File "/usr/share/vdsm/storage/hsm.py", line 2388, in connectStorageServer conObj.connect() File

Re: [ovirt-users] Staring cluster Hosted Engine stuck - failed liveliness check

On Fri, Mar 3, 2017 at 11:35 AM, Maton, Brett wrote: > VM Up not responding - Yes that seems to be the case. > > I did actually try hosted-engine --console > > hosted-engine --console > The engine VM is running on this host > Connected to domain HostedEngine > Escape

Re: [ovirt-users] [Gluster-users] Hot to force glusterfs to use RDMA?

Thank you all for the nice hints. Somehow my host was not able to access the userspace RDMA, after installing: yum install -y libmlx4.x86_64 I can mount: /usr/bin/mount -t glusterfs -o backup-volfile-servers=10.10.10.44:10.10.10.42:10.10.10.41,transport=rdma 10.10.10.44:/GluReplica /mnt

Re: [ovirt-users] Staring cluster Hosted Engine stuck - failed liveliness check

Thanks Simone, I'll give that a go this evening, I'm remote at the moment. Regards, Brett On 3 March 2017 at 10:48, Simone Tiraboschi wrote: > > > On Fri, Mar 3, 2017 at 11:35 AM, Maton, Brett > wrote: > >> VM Up not responding - Yes that

[ovirt-users] Contributing on ovirt

Hello, I am interested in being part of ovirt for gsoc 2017. I have looked into ovirt project ideas and the project that I find most suitable is Configuring the backup storage in ovirt. Since the ovirt online docs have sufficient info for getting started for development so I don't have a

Re: [ovirt-users] OVirt new cluster host only logins on one iSCSI

Hello, > > Thanks for your reply. Maybe I did not explain myself correctly. > > > > > > I have a Hosted engine Setup, 2 physical hosts, 1 for virtualization > > > > and > > > > > > another for managing OVirt. > > > > > > The host that runs the engine VM could also run other VMs at the same >

Re: [ovirt-users] Staring cluster Hosted Engine stuck - failed liveliness check

On Thu, Mar 2, 2017 at 11:42 AM, Maton, Brett wrote: > What is the correct way to shut down a cluster ? > > I shutdown my 4.1 cluster following this guide > https://github.com/rharmonson/richtech/wiki/OSVDC-Series:-oV > irt-3.6-Cluster-Shutdown-and-Startup as the NAS

Re: [ovirt-users] Replicated Glusterfs on top of ZFS

Pool load: [root@clei21 ~]# zpool iostat -v 1 capacity operations bandwidth poolalloc free read write read write -- - - - - - - zclei21

Re: [ovirt-users] Replicated Glusterfs on top of ZFS

ok, you have 3 pools, zclei22, logs and cache, thats wrong. you should have 1 pool, with zlog+cache if you are looking for performance. also, dont mix drives. whats the performance issue you are facing? regards, 2017-03-03 11:00 GMT-03:00 Arman Khalatyan : > This is CentOS

Re: [ovirt-users] Replicated Glusterfs on top of ZFS

Which operating system version are you using for your zfs storage? do: zfs get all your-pool-name use arc_summary.py from freenas git repo if you wish. 2017-03-03 10:33 GMT-03:00 Arman Khalatyan : > Pool load: > [root@clei21 ~]# zpool iostat -v 1 >

Re: [ovirt-users] Replicated Glusterfs on top of ZFS

Glusterfs now in healing mode: Receiver: [root@clei21 ~]# arcstat.py 1 time read miss miss% dmis dm% pmis pm% mmis mm% arcsz c 13:24:49 0 0 0 00 00 00 4.6G 31G 13:24:50 15480 5180 51 0080 51 4.6G 31G

Re: [ovirt-users] Replicated Glusterfs on top of ZFS

This is CentOS 7.3 ZoL version 0.6.5.9-1 [root@clei22 ~]# lsscsi [2:0:0:0]diskATA INTEL SSDSC2CW24 400i /dev/sda [3:0:0:0]diskATA HGST HUS724040AL AA70 /dev/sdb [4:0:0:0]diskATA WDC WD2002FYPS-0 1G01 /dev/sdc [root@clei22 ~]# pvs ;vgs;lvs PV

Re: [ovirt-users] Replicated Glusterfs on top of ZFS

No, I have one pool made of the one disk and ssd as a cache and log device. I have 3 Glusterfs bricks- separate 3 hosts:Volume type Replicate (Arbiter)= replica 2+1! That how much you can push into compute nodes(they have only 3 disk slots). On Fri, Mar 3, 2017 at 3:19 PM, Juan Pablo

Re: [ovirt-users] Replicated Glusterfs on top of ZFS

cd to inside the pool path then dd if=/dev/zero of=test.tt bs=1M leave it runing 5/10 minutes. do ctrl+c paste result here. etc. 2017-03-03 11:30 GMT-03:00 Arman Khalatyan : > No, I have one pool made of the one disk and ssd as a cache and log device. > I have 3 Glusterfs

Re: [ovirt-users] Staring cluster Hosted Engine stuck - failed liveliness check

Hi Simone, I just tried to install the RPM but got a dependency issue: Error: Package: ovirt-hosted-engine-ha-2.1.0.4-1.el7.centos.noarch (/ovirt-hosted-engine-ha-2.1.0.4-1.el7.centos.noarch) Requires: vdsm-client >= 4.18.6 I haven't tried to install vdsm-client as I'm not sure

Re: [ovirt-users] Staring cluster Hosted Engine stuck - failed liveliness check

On Fri, Mar 3, 2017 at 5:21 PM Maton, Brett wrote: > Hi Simone, > > I just tried to install the RPM but got a dependency issue: > > Error: Package: ovirt-hosted-engine-ha-2.1.0.4-1.el7.centos.noarch > (/ovirt-hosted-engine-ha-2.1.0.4-1.el7.centos.noarch) >

Re: [ovirt-users] [Gluster-users] Hot to force glusterfs to use RDMA?

Hi Arman, On 03/03/2017 12:27 PM, Arman Khalatyan wrote: > Dear Deepak, thank you for the hints, which gluster are you using? > As you can see from my previous email that the RDMA connection tested > with qperf. It is working as expected. In my case the clients are > servers as well, they are

Re: [ovirt-users] [Gluster-users] Hot to force glusterfs to use RDMA?

I have been testing glusterfs over RDMA & below is the command I use. Reading up the logs, it looks like your IB(InfiniBand) device is not being initialized. I am not sure if u have an issue on the client IB or the storage server IB. Also have you configured ur IB devices correctly. I am using

Re: [ovirt-users] [Gluster-users] Hot to force glusterfs to use RDMA?

>> As you can see from my previous email that the RDMA connection tested with >> qperf. I think you have wrong command. Your testing TCP & not RDMA. Also check if you have RDMA & IB modules loaded on your hosts. root@clei26 ~]# qperf clei22.vib tcp_bw tcp_lat tcp_bw: bw = 475 MB/sec

Re: [ovirt-users] Staring cluster Hosted Engine stuck - failed liveliness check

Ok thanks, I'll give that another go shortly On 3 March 2017 at 15:24, Yaniv Kaul wrote: > > > On Fri, Mar 3, 2017 at 5:21 PM Maton, Brett > wrote: > >> Hi Simone, >> >> I just tried to install the RPM but got a dependency issue: >> >> Error: