Backing up clustered storage volume
Posted on 2013-06-12
I am looking at an alternative to my DPM setup in a DR situation. What I am aiming for is if our server room burns down I have placed another physical server in a secure room with 20tb of storage that I hope to hold copy's of the clustered storage folders.
The way our environment is setup is as follows:
2 x Dell PowerEdge servers running Win2k8 R2 64bit with Hyper-V Clustering
1 x Dell Dell PowerVault MD3200i via SCSI (SAS) interface
What I have done is created a 3TB LUN shared between the 2 cluster hosts that the vhd/avhd files sit on and run the virtual machines. All I want to be able to do is take a straight copy without turning any of the VM's off over a weekend and dump them to a seperate, independent NAS server that is sitting in the same building but in a secure locked room.
My reasoning behind this is that if the room burns down, I can go to the 20tb NAS, copy the VHD files off, setup the clustering services again (if need be) and get essential services back online. The connectivity I am using to the NAS is 2 x 1GB NIC's and the test copy's of larger files are running great and will successfully copy over a weekend period without network saturation.
The products I have used currently are as follows:
NAS: Open-E DSS v7 Operating system which I have successfully integrated with our active directory and setup secure directory for the files to be dumped to.
Cluster Servers: I found an app called ViceVersa Pro that can organise copys of files on a schedule, email me log files on fail/completion. I have used the option 'Use Shadow Copy Service' to copy open files however, I cannot seem to enable Shadow Copy Services on the Clustered Share Volume on either server.
This application copys unopen files fine, but when it hits a file that is in use, it fails. I understand why, so if I could work out how to enable Shadow Copys on the Clustered Storage Volume I would be out of trouble. It seems all apps who claim to copy open files use the shadow copys service so I am kind of stuck.
If I am going down the wrong route with this solution please point me into the right direction, but this is what I have deemed to be the easiest solution so far.