I have an IBM HS21 chassis with 4 ESXi 4 hosts with Vsphere 4.1 with 2 IBM SANs in the chassis
I am planning to implement a SQL cluster using 2 Win Enterprise 2008 R2 servers with SQL 2008 and a Dell MD3200i SAN.
1 x 160Gb for SQL
1 x 250GB for Logs
1x 200MB for Quorum
I have read thought the document from end to end on how to do this http://www.vmware.com/pdf/vsphere4/r40/vsp_40_mscs.pdf
The Dell SAN has been in use for the past 9 months.
I have built the 2 cluster servers, but the problem is that the RDMs are very temperamental on presenting themselves to the VM servers when building them.
I can see them on the attach RDM option fine, and 1 will attach, sometimes 2, and I can get 1 to attach on the second cluster.
When I try to add the 3rd RDM, it appears in the settings box and the scsi bus is set to shared but the RDM never appears in the storage manager.
On cluster 2, I can maybe get 1 to appear, the rest never do. If I look at the property settings on both servers, they are all present with shared bus, but windows doesn’t see them.
If I remove all the RDM and start again, or try and attach them anew to another spare test server, they still refuse to all appear.
Any help would be great as I have been struggling for 3 days now and pulling my hair out!