SQL Server Forums
Profile | Register | Active Topics | Members | Search | Forum FAQ
 
Register Now and get your question answered!
Username:
Password:
Save Password
Forgot your Password?

 All Forums
 SQL Server 2008 Forums
 SQL Server Administration (2008)
 Virtualized SQL Servers getting quorum disk lost
 New Topic  Reply to Topic
 Printer Friendly
Author Previous Topic Topic Next Topic  

Wallander
Starting Member

4 Posts

Posted - 05/10/2013 :  11:06:47  Show Profile  Reply with Quote


Hi, I am a SAN administrator, who is getting his hands dirty on the MS SQL administration these days.

We have set up a SQL cluster which is on WIndows 2008 Datacenter R2 and running SQL 2008.

This is a completely virtualized infrastructure, as Windows hosts are VMs running on VMware 5.0 ESXi. Shared disks are connected for SQL using guest iSCSI initiator(We found this is much easier option than Physical RDMs, as we have 10GB Nics on the ESX servers)

Everything worked like a charm for a while and then suddenly we started getting issues that cluster is failing regularly with the Quorum disk lost error.

One of the VM is getting out of the Failover cluster all the time and some times the services didn't failover too.

Network people don't see anything unusual and windows VM event log is full of Lost quorum disk error.

Did anyone see such issues before ? It is very annoying to see clusters failing.

Best Regards,

W

jackv
Flowing Fount of Yak Knowledge

United Kingdom
2067 Posts

Posted - 05/10/2013 :  13:49:47  Show Profile  Visit jackv's Homepage  Reply with Quote
Do you mean it is automatically vMotioning onto a different ESX host?

Jack Vamvas
--------------------
http://www.sqlserver-dba.com
Go to Top of Page

Wallander
Starting Member

4 Posts

Posted - 05/11/2013 :  09:56:19  Show Profile  Reply with Quote
Hi,

No, The VMs stay where they are. That is as expected and that is how it is to be.

But the one of the 2 guest VMs which is a part of the Failover cluster looses iSCSI disks

It is very random.

Thanks and Regards,
W
Go to Top of Page

jackv
Flowing Fount of Yak Knowledge

United Kingdom
2067 Posts

Posted - 05/12/2013 :  01:56:08  Show Profile  Visit jackv's Homepage  Reply with Quote
Are the error logs reporting anything?

Jack Vamvas
--------------------
http://www.sqlserver-dba.com
Go to Top of Page

Wallander
Starting Member

4 Posts

Posted - 05/16/2013 :  07:34:34  Show Profile  Reply with Quote
It is Full of

Cluster network 'Cluster Network 1' is partitioned. Some attached failover cluster nodes cannot communicate with each other over the network. The failover cluster was not able to determine the location of the failure. Run the Validate a Configuration wizard to check your network configuration. If the condition persists, check for hardware or software errors related to the network adapter. Also check for failures in any other network components to which the node is connected such as hubs, switches, or bridges.

We have 3 Network
1. Heartbeat
2. iSCSI
3. Server Network

What I have done so far

1. Disabled IPV6
2. Disabled DNS Registration for iSCSI and Heartbeat Networks, they are on L2 Network
3. Disabled CLuster Network communication on the iSCSI Network
Regards,

W
Go to Top of Page
  Previous Topic Topic Next Topic  
 New Topic  Reply to Topic
 Printer Friendly
Jump To:
SQL Server Forums © 2000-2009 SQLTeam Publishing, LLC Go To Top Of Page
This page was generated in 0.09 seconds. Powered By: Snitz Forums 2000