Re: [ovirt-users] Hosted engine not starting up after system reboot
I forgot to add: The file /var/run/ovirt-hosted-engine-ha/vm.conf doesn't exist: [root@virt1 ~]# ll /var/run/ovirt-hosted-engine-ha/vm.conf ls: cannot access /var/run/ovirt-hosted-engine-ha/vm.conf: No such file or directory [root@virt1 ~]# ll /var/run/ovirt-hosted-engine-ha/ total 8 -rw-r--r--. 1 root root 5 Nov 16 08:05 agent.pid -rw-r--r--. 1 root root 5 Nov 16 06:45 broker.pid srwxr-xr-x. 1 vdsm kvm 0 Nov 16 06:45 broker.socket I am not sure how to get it (back?) or how to generate it? On Thu, Nov 16, 2017 at 7:55 AM, Rudi Ahlers <rudiahl...@gmail.com> wrote: > Hi, > > I wonder if someone can help. After a system reboot, the Hosted-Agent > isn't running. This is on a fresh installaion CentOS Linux release 7.4.1708 > running ovirt-release41-4.1.7-1.el7.centos.noarch. Gluster is setup on 3 > nodes, but hosted-engine is only setup on the 1st node for now. > > [root@virt1 ~]# hosted-engine --console > Virtual machine does not exist > The engine VM is not on this host > > [root@virt1 ~]# hosted-engine --vm-status > The hosted engine configuration has not been retrieved from shared > storage. Please ensure that ovirt-ha-agent is running and the storage > server is reachable. > > > [root@virt1 ~]# ps ax | grep ovirt-ha-agent > 41309 ?Rsl0:14 /usr/bin/python > /usr/share/ovirt-hosted-engine-ha/ovirt-ha-agent > --no-daemon > 42818 pts/0S+ 0:00 grep --color=auto ovirt-ha-agent > > > [root@virt1 ~]# mount | grep engine > /dev/mapper/storage-engine on /storage/engine type xfs > (rw,relatime,seclabel,attr2,inode64,sunit=1024,swidth=2048,noquota) > virt1:/engine on /mnt/engine type fuse.glusterfs > (rw,relatime,user_id=0,group_id=0,default_permissions, > allow_other,max_read=131072) > virt1:/engine on /rhev/data-center/mnt/glusterSD/virt1:_engine type > fuse.glusterfs (rw,relatime,user_id=0,group_id=0,default_permissions, > allow_other,max_read=131072) > > > And then I see this error: > > [root@virt1 ~]# systemctl status ovirt-ha-agent -l > ● ovirt-ha-agent.service - oVirt Hosted Engine High Availability > Monitoring Agent >Loaded: loaded (/usr/lib/systemd/system/ovirt-ha-agent.service; > enabled; vendor preset: disabled) >Active: active (running) since Thu 2017-11-16 07:44:43 SAST; 4min 23s > ago > Main PID: 41309 (ovirt-ha-agent) >CGroup: /system.slice/ovirt-ha-agent.service >└─41309 /usr/bin/python > /usr/share/ovirt-hosted-engine-ha/ovirt-ha-agent > --no-daemon > > Nov 16 07:48:30 virt ovirt-ha-agent[41309]: ovirt-ha-agent > ovirt_hosted_engine_ha.agent.hosted_engine.HostedEngine.config ERROR > Unable to identify the OVF_STORE volume, falling back to initial vm.conf. > Please ensure you already added your first data domain for regular VMs > Nov 16 07:48:30 virt ovirt-ha-agent[41309]: ovirt-ha-agent > ovirt_hosted_engine_ha.agent.hosted_engine.HostedEngine.config ERROR > 'version' is not stored in the HE configuration image > Nov 16 07:48:39 virt ovirt-ha-agent[41309]: ovirt-ha-agent > ovirt_hosted_engine_ha.agent.hosted_engine.HostedEngine.config ERROR > Unable to identify the OVF_STORE volume, falling back to initial vm.conf. > Please ensure you already added your first data domain for regular VMs > Nov 16 07:48:39 virt ovirt-ha-agent[41309]: ovirt-ha-agent > ovirt_hosted_engine_ha.agent.hosted_engine.HostedEngine.config ERROR > 'version' is not stored in the HE configuration image > Nov 16 07:48:41 virt ovirt-ha-agent[41309]: ovirt-ha-agent > ovirt_hosted_engine_ha.agent.hosted_engine.HostedEngine.config ERROR > Unable to identify the OVF_STORE volume, falling back to initial vm.conf. > Please ensure you already added your first data domain for regular VMs > Nov 16 07:48:41 virt ovirt-ha-agent[41309]: ovirt-ha-agent > ovirt_hosted_engine_ha.agent.hosted_engine.HostedEngine.config ERROR > 'version' is not stored in the HE configuration image > Nov 16 07:48:41 virt ovirt-ha-agent[41309]: ovirt-ha-agent > ovirt_hosted_engine_ha.agent.agent.Agent ERROR Traceback (most recent > call last): > File > "/usr/lib/python2.7/site-packages/ovirt_hosted_engine_ha/agent/agent.py", > line 191, in _run_agent > return > action(he) > File > "/usr/lib/python2.7/site-packages/ovirt_hosted_engine_ha/agent/agent.py", > line 64, in action_proper > return > he.start_monitoring() > File > "/usr/lib/python2.7/site-packages/ovirt_hosted_engine_ha/agent/hosted_engine.py", > line 4
[ovirt-users] Hosted engine not starting up after system reboot
ation value not found: file=/var/run/ovirt-hosted-engine-ha/vm.conf, key=memSize' Nov 16 07:48:41 virt ovirt-ha-agent[41309]: ovirt-ha-agent ovirt_hosted_engine_ha.agent.agent.Agent ERROR Trying to restart agent Nov 16 07:49:01 virt ovirt-ha-agent[41309]: ovirt-ha-agent ovirt_hosted_engine_ha.agent.hosted_engine.HostedEngine.config ERROR Unable to identify the OVF_STORE volume, falling back to initial vm.conf. Please ensure you already added your first data domain for regular VMs Nov 16 07:49:01 virt ovirt-ha-agent[41309]: ovirt-ha-agent ovirt_hosted_engine_ha.agent.hosted_engine.HostedEngine.config ERROR 'version' is not stored -- Kind Regards Rudi Ahlers Website: http://www.rudiahlers.co.za ___ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
[ovirt-users] where to change vnc password?
Hi, I installed hosted-engine on a VM but failed to see the VNC password due to power failure. The hosted-engine VM is running now, but I don't know where to see or change the VNC password. Can someone please tell me where to change it? -- Kind Regards Rudi Ahlers Website: http://www.rudiahlers.co.za ___ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
Re: [ovirt-users] how to move network bridge?
I know, have been using Linux since 2000 and redoing the network isn't
difficult, but in this case something didn't work well.
Right now I'm stuck with a degraded Gluster setup after the reinstallation
for which I have posted another thread.
On Wed, Nov 15, 2017 at 1:58 PM, Petr Horacek <phora...@redhat.com> wrote:
> Manual change of ifcfg files and restart of network service (not reboot)
> should restore connectivity. Then you should be able to access Engine and
> setup the new network there so it will be persisted and recognized by oVirt.
>
> Glad you managed to run it.
>
>
> 2017-11-15 13:45 GMT+02:00 Rudi Ahlers <rudiahl...@gmail.com>:
>
>> Hi Petr,
>>
>> Thanx for getting back to me.
>>
>> I ended up reinstalling the server. Even after I manually edited the
>> ifcg-ens2f0 and ens2f3 files, and rebooted, networking didn't work well.
>> The gateway was never added (even though it was listed in the files) and
>> the /etc/resolv.conf file kept on being overwritten despite NetworkManager
>> being off.
>>
>> On Wed, Nov 15, 2017 at 1:41 PM, Petr Horacek <phora...@redhat.com>
>> wrote:
>>
>>> Hello,
>>>
>>> could you please share your current configuration from
>>> /etc/sysconfig/network-scripts/ifcfg-{ovirtmgmt,DESIRED_STOR
>>> AGE_IFACE,DESIRED_MGMT_IFACE}?
>>>
>>> Thanks,
>>> Petr
>>>
>>> 2017-11-14 23:56 GMT+02:00 Rudi Ahlers <rudiahl...@gmail.com>:
>>>
>>>> Hi,
>>>>
>>>> Can someone please help me "move" the network bridge to another port? I
>>>> have tried a couple times but it doesn't seem to work.
>>>> Our internal LAN IP range is 192.168.102.0/24 and the storage area
>>>> network is 10.10.10.0/24
>>>>
>>>> When I installed hosted-engine, I accidently told it to use the
>>>> 10.10.10.81 interface and a bridge was created accordingly. But I cannot
>>>> access the 10.10.10.0/24 IP range via our VPN (for security reasons)
>>>> so I can't access the hosted-engine
>>>>
>>>> I tried to remove the bridge interface with brctl but it didn't work as
>>>> expected.
>>>>
>>>> root@virt1 ~]# brctl show
>>>> bridge name bridge id STP enabled interfaces
>>>> ;vdsmdummy; 8000.0000 no
>>>> ovirtmgmt 8000.0cc47aeaffd8 no ens2f0
>>>>
>>>>
>>>> Even though I tried to remove ens2f0 and added ens2f3, it never worked.
>>>> The bridge / network would stop working and I wold need to login to the
>>>> server's IPMI card and remove ens2f0.
>>>>
>>>> Can someone please guide me in moving the bridge to the
>>>> 192.168.102.0/24 network?
>>>>
>>>>
>>>>
>>>> --
>>>> Kind Regards
>>>> Rudi Ahlers
>>>> Website: http://www.rudiahlers.co.za
>>>>
>>>> ___
>>>> Users mailing list
>>>> Users@ovirt.org
>>>> http://lists.ovirt.org/mailman/listinfo/users
>>>>
>>>>
>>>
>>
>>
>> --
>> Kind Regards
>> Rudi Ahlers
>> Website: http://www.rudiahlers.co.za
>>
>
>
--
Kind Regards
Rudi Ahlers
Website: http://www.rudiahlers.co.za
___
Users mailing list
Users@ovirt.org
http://lists.ovirt.org/mailman/listinfo/users
Re: [ovirt-users] how to move network bridge?
Hi Petr,
Thanx for getting back to me.
I ended up reinstalling the server. Even after I manually edited the
ifcg-ens2f0 and ens2f3 files, and rebooted, networking didn't work well.
The gateway was never added (even though it was listed in the files) and
the /etc/resolv.conf file kept on being overwritten despite NetworkManager
being off.
On Wed, Nov 15, 2017 at 1:41 PM, Petr Horacek <phora...@redhat.com> wrote:
> Hello,
>
> could you please share your current configuration from
> /etc/sysconfig/network-scripts/ifcfg-{ovirtmgmt,
> DESIRED_STORAGE_IFACE,DESIRED_MGMT_IFACE}?
>
> Thanks,
> Petr
>
> 2017-11-14 23:56 GMT+02:00 Rudi Ahlers <rudiahl...@gmail.com>:
>
>> Hi,
>>
>> Can someone please help me "move" the network bridge to another port? I
>> have tried a couple times but it doesn't seem to work.
>> Our internal LAN IP range is 192.168.102.0/24 and the storage area
>> network is 10.10.10.0/24
>>
>> When I installed hosted-engine, I accidently told it to use the
>> 10.10.10.81 interface and a bridge was created accordingly. But I cannot
>> access the 10.10.10.0/24 IP range via our VPN (for security reasons) so
>> I can't access the hosted-engine
>>
>> I tried to remove the bridge interface with brctl but it didn't work as
>> expected.
>>
>> root@virt1 ~]# brctl show
>> bridge name bridge id STP enabled interfaces
>> ;vdsmdummy; 8000. no
>> ovirtmgmt 8000.0cc47aeaffd8 no ens2f0
>>
>>
>> Even though I tried to remove ens2f0 and added ens2f3, it never worked.
>> The bridge / network would stop working and I wold need to login to the
>> server's IPMI card and remove ens2f0.
>>
>> Can someone please guide me in moving the bridge to the 192.168.102.0/24
>> network?
>>
>>
>>
>> --
>> Kind Regards
>> Rudi Ahlers
>> Website: http://www.rudiahlers.co.za
>>
>> ___
>> Users mailing list
>> Users@ovirt.org
>> http://lists.ovirt.org/mailman/listinfo/users
>>
>>
>
--
Kind Regards
Rudi Ahlers
Website: http://www.rudiahlers.co.za
___
Users mailing list
Users@ovirt.org
http://lists.ovirt.org/mailman/listinfo/users
[ovirt-users] cannot remove gluster brick
Hi, I am trying to remove a brick, from a server which is no longer part of the gluster pool, but I keep running into errors for which I cannot find answers on google. [root@virt2 ~]# gluster peer status Number of Peers: 3 Hostname: srv1 Uuid: 2bed7e51-430f-49f5-afbc-06f8cec9baeb State: Peer in Cluster (Disconnected) Hostname: srv3 Uuid: 0e78793c-deca-4e3b-a36f-2333c8f91825 State: Peer in Cluster (Connected) Hostname: srv4 Uuid: 1a6eedc6-59eb-4329-b091-2b9bc6f0834f State: Peer in Cluster (Connected) [root@virt2 ~]# [root@virt2 ~]# gluster volume info data Volume Name: data Type: Replicate Volume ID: d09e4534-8bc0-4b30-be89-bc1ec2b439c7 Status: Started Snapshot Count: 0 Number of Bricks: 1 x 3 = 3 Transport-type: tcp Bricks: Brick1: srv1:/gluster/data/brick1 Brick2: srv2:/gluster/data/brick1 Brick3: srv3:/gluster/data/brick1 Options Reconfigured: nfs.disable: on transport.address-family: inet performance.quick-read: off performance.read-ahead: off performance.io-cache: off performance.low-prio-threads: 32 network.remote-dio: enable cluster.eager-lock: enable cluster.quorum-type: auto cluster.server-quorum-type: server cluster.data-self-heal-algorithm: full cluster.locking-scheme: granular cluster.shd-max-threads: 8 cluster.shd-wait-qlength: 1 features.shard: on user.cifs: off storage.owner-uid: 36 storage.owner-gid: 36 features.shard-block-size: 512MB [root@virt2 ~]# gluster volume remove-brick data replica 2 srv1:/gluster/data/brick1 start volume remove-brick start: failed: Migration of data is not needed when reducing replica count. Use the 'force' option [root@virt2 ~]# gluster volume remove-brick data replica 2 srv1:/gluster/data/brick1 commit Removing brick(s) can result in data loss. Do you want to Continue? (y/n) y volume remove-brick commit: failed: Brick srv1:/gluster/data/brick1 is not decommissioned. Use start or force option The server virt1 is not part of the cluster anymore. -- Kind Regards Rudi Ahlers Website: http://www.rudiahlers.co.za ___ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
[ovirt-users] how to move network bridge?
Hi, Can someone please help me "move" the network bridge to another port? I have tried a couple times but it doesn't seem to work. Our internal LAN IP range is 192.168.102.0/24 and the storage area network is 10.10.10.0/24 When I installed hosted-engine, I accidently told it to use the 10.10.10.81 interface and a bridge was created accordingly. But I cannot access the 10.10.10.0/24 IP range via our VPN (for security reasons) so I can't access the hosted-engine I tried to remove the bridge interface with brctl but it didn't work as expected. root@virt1 ~]# brctl show bridge name bridge id STP enabled interfaces ;vdsmdummy; 8000. no ovirtmgmt 8000.0cc47aeaffd8 no ens2f0 Even though I tried to remove ens2f0 and added ens2f3, it never worked. The bridge / network would stop working and I wold need to login to the server's IPMI card and remove ens2f0. Can someone please guide me in moving the bridge to the 192.168.102.0/24 network? -- Kind Regards Rudi Ahlers Website: http://www.rudiahlers.co.za ___ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
Re: [ovirt-users] hosted exchange failed to install
Thanx Alan. On Tue, Nov 14, 2017 at 10:11 PM, Alan Griffiths <apgriffith...@gmail.com> wrote: > Mount the Gluster volume and delete everything on it. Should be a > directory with a UUID name and a file called __DIRECT_IO_TEST__ > > On 14 November 2017 at 18:54, Rudi Ahlers <rudiahl...@gmail.com> wrote: > > Hi > > > > Please be a bit more specific. What exactly do I need to delete? It's on > > GlusterFS > > > > On Tue, Nov 14, 2017 at 7:47 PM, Alan Griffiths <apgriffith...@gmail.com > > > > wrote: > >> > >> Looks like you need to clean out your storage domain left over from > >> the previous install attempt. What are you using, gluster, NFS? > >> > >> On 14 November 2017 at 14:35, Rudi Ahlers <rudiahl...@gmail.com> wrote: > >> > Hi, > >> > > >> > Can someone please help? > >> > > >> > I installed hosted exchange but specified the wrong interface, and > thus > >> > couldn't access it. So I removed it (yum install) and reinstalled it, > >> > and > >> > re-ran the deploy but got the following error: > >> > > >> > Please confirm installation settings (Yes, No)[Yes]: > >> > [ INFO ] Stage: Transaction setup > >> > [ INFO ] Stage: Misc configuration > >> > [ INFO ] Stage: Package installation > >> > [ INFO ] Stage: Misc configuration > >> > [ INFO ] Configuring libvirt > >> > [ INFO ] Configuring VDSM > >> > [WARNING] VDSM configuration file not found: creating a new > >> > configuration > >> > file > >> > [ INFO ] Starting vdsmd > >> > [ INFO ] Creating Storage Domain > >> > [ ERROR ] Failed to execute stage 'Misc configuration': Storage domain > >> > is > >> > not empty - requires cleaning: (u'srv1:/engine',) > >> > [ INFO ] Yum Performing yum transaction rollback > >> > [ INFO ] Stage: Clean up > >> > [ INFO ] Generating answer file > >> > '/var/lib/ovirt-hosted-engine-setup/answers/answers- > 20171114162130.conf' > >> > [ INFO ] Stage: Pre-termination > >> > [ INFO ] Stage: Termination > >> > [ ERROR ] Hosted Engine deployment failed: this system is not > reliable, > >> > please check the issue,fix and redeploy > >> > Log file is located at > >> > > >> > /var/log/ovirt-hosted-engine-setup/ovirt-hosted-engine- > setup-20171114161520-km3qok.log > >> > > >> > > >> > > >> > I am honestly not sure why it would think "this system is not > reliable". > >> > How > >> > do I check what is actually wrong? > >> > > >> > The log file shows the same error: > >> > > >> > > >> > tail -f > >> > > >> > /var/log/ovirt-hosted-engine-setup/ovirt-hosted-engine- > setup-20171114161520-km3qok.log > >> > 2017-11-14 16:21:30 DEBUG otopi.context context._executeMethod:134 > >> > condition > >> > False > >> > 2017-11-14 16:21:30 INFO otopi.context context.runSequence:687 Stage: > >> > Termination > >> > 2017-11-14 16:21:30 DEBUG otopi.context context.runSequence:691 STAGE > >> > terminate > >> > 2017-11-14 16:21:30 DEBUG otopi.context context._executeMethod:128 > Stage > >> > terminate METHOD otopi.plugins.gr_he_common. > core.misc.Plugin._terminate > >> > 2017-11-14 16:21:30 ERROR otopi.plugins.gr_he_common.core.misc > >> > misc._terminate:178 Hosted Engine deployment failed: this system is > not > >> > reliable, please check the issue,fix and redeploy > >> > 2017-11-14 16:21:30 DEBUG otopi.plugins.otopi.dialog.human > >> > dialog.__logString:204 DIALOG:SEND Log file is located > >> > at > >> > > >> > /var/log/ovirt-hosted-engine-setup/ovirt-hosted-engine- > setup-20171114161520-km3qok.log > >> > 2017-11-14 16:21:30 DEBUG otopi.context context._executeMethod:128 > Stage > >> > terminate METHOD otopi.plugins.otopi.dialog.human.Plugin._terminate > >> > 2017-11-14 16:21:30 DEBUG otopi.context context._executeMethod:128 > Stage > >> > terminate METHOD otopi.plugins.otopi.dialog.machine.Plugin._terminate > >> > 2017-11-14 16:21:30 DEBUG otopi.context context._executeMethod:134 > >> > condition > >> > False > >> > 2017-11-14 16:21:30 DEBUG otopi.context context._executeMethod:128 > Stage > >> > terminate METHOD otopi.plugins.otopi.core.log.Plugin._terminate > >> > > >> > > >> > -- > >> > Kind Regards > >> > Rudi Ahlers > >> > Website: http://www.rudiahlers.co.za > >> > > >> > ___ > >> > Users mailing list > >> > Users@ovirt.org > >> > http://lists.ovirt.org/mailman/listinfo/users > >> > > > > > > > > > > > -- > > Kind Regards > > Rudi Ahlers > > Website: http://www.rudiahlers.co.za > -- Kind Regards Rudi Ahlers Website: http://www.rudiahlers.co.za ___ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
[ovirt-users] hosted exchange failed to install
Hi, Can someone please help? I installed hosted exchange but specified the wrong interface, and thus couldn't access it. So I removed it (yum install) and reinstalled it, and re-ran the deploy but got the following error: Please confirm installation settings (Yes, No)[Yes]: [ INFO ] Stage: Transaction setup [ INFO ] Stage: Misc configuration [ INFO ] Stage: Package installation [ INFO ] Stage: Misc configuration [ INFO ] Configuring libvirt [ INFO ] Configuring VDSM [WARNING] VDSM configuration file not found: creating a new configuration file [ INFO ] Starting vdsmd [ INFO ] Creating Storage Domain [ ERROR ] Failed to execute stage 'Misc configuration': Storage domain is not empty - requires cleaning: (u'srv1:/engine',) [ INFO ] Yum Performing yum transaction rollback [ INFO ] Stage: Clean up [ INFO ] Generating answer file '/var/lib/ovirt-hosted-engine-setup/answers/answers-20171114162130.conf' [ INFO ] Stage: Pre-termination [ INFO ] Stage: Termination [ ERROR ] Hosted Engine deployment failed: this system is not reliable, please check the issue,fix and redeploy Log file is located at /var/log/ovirt-hosted-engine-setup/ovirt-hosted-engine-setup-20171114161520-km3qok.log I am honestly not sure why it would think "this system is not reliable". How do I check what is actually wrong? The log file shows the same error: tail -f /var/log/ovirt-hosted-engine-setup/ovirt-hosted-engine-setup-20171114161520-km3qok.log 2017-11-14 16:21:30 DEBUG otopi.context context._executeMethod:134 condition False 2017-11-14 16:21:30 INFO otopi.context context.runSequence:687 Stage: Termination 2017-11-14 16:21:30 DEBUG otopi.context context.runSequence:691 STAGE terminate 2017-11-14 16:21:30 DEBUG otopi.context context._executeMethod:128 Stage terminate METHOD otopi.plugins.gr_he_common.core.misc.Plugin._terminate 2017-11-14 16:21:30 ERROR otopi.plugins.gr_he_common.core.misc misc._terminate:178 Hosted Engine deployment failed: this system is not reliable, please check the issue,fix and redeploy 2017-11-14 16:21:30 DEBUG otopi.plugins.otopi.dialog.human dialog.__logString:204 DIALOG:SEND Log file is located at /var/log/ovirt-hosted-engine-setup/ovirt-hosted-engine-setup-20171114161520-km3qok.log 2017-11-14 16:21:30 DEBUG otopi.context context._executeMethod:128 Stage terminate METHOD otopi.plugins.otopi.dialog.human.Plugin._terminate 2017-11-14 16:21:30 DEBUG otopi.context context._executeMethod:128 Stage terminate METHOD otopi.plugins.otopi.dialog.machine.Plugin._terminate 2017-11-14 16:21:30 DEBUG otopi.context context._executeMethod:134 condition False 2017-11-14 16:21:30 DEBUG otopi.context context._executeMethod:128 Stage terminate METHOD otopi.plugins.otopi.core.log.Plugin._terminate -- Kind Regards Rudi Ahlers Website: http://www.rudiahlers.co.za ___ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
[ovirt-users] how to redo oVirt cluster?
Hi, I have setup an oVirt cluster and did some tests. But how do I redo everything, without reinstalling CentOS as well? Would it be as simple as uninstalling all the ovirt? Or do I need to manually delete some config files and other traces off the install as well? -- Kind Regards Rudi Ahlers Website: http://www.rudiahlers.co.za ___ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
[ovirt-users] recommendations for best performance and reliability
Hi, Can someone please give me some pointers, what would be the best setup for performance and reliability? We have the following hardware setup: 3x Supermicro server with following features per server: 128GB RAM 4x 8TB SATA HDD 2x SSD drives (intel_ssdsc2ba400g4 - 400GB DC S3710) 2x 12 core CPU (Intel(R) Xeon(R) CPU E5-2650 v4 @ 2.20GHz Quad port 10Gbe Inter NIC 2x 10GB Cisco switches (to isolate storage network from LAN) One of the servers will be in another office, with a 600Mb wireless link for Disaster Recovery. What is recommended for the best setup in terms of redundancy and speed? I am guessing GlusterFS with a Distributed Striped Replicated Volume across 3 of the servers. For added performance I want to use the SSD drives, perhaps with dm-cache? Should I combine the 4x HDD's using LVM on each host node? What about RAID 6? Virtual Machines will then reside on the oVirt Cluster and any one of the 3 host nodes can fail, or any single HDD can fail and all should still work, right/? -- Kind Regards Rudi Ahlers Website: http://www.rudiahlers.co.za ___ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
