Clustered Hyper-V Pass-thru disk backup - How to take an image based backup of an extremely large partition?
Posted on 2013-01-02
I am trying to find the best way to backup an EXTREMELY large Hyper-V Pass-thru disk. Here is the environment:
(2) Windows 2008 R2 Service pack 1 Hyper-V Hosts
(8) Clustered VM's
(2) Dell Equallogic SAN's in replication (8TB each)
(1) LAN Segment (192.168.1.0/24)
(1) Storage Segment (172.16.10.0/24)
(1) NAS for backup repository storage (24TB) living on the storage segment
(4) sockets licensed for Veeam Backup and Replication replicating all VM's to the NAS with Veeam running from a single host, and the host connected directly to the Storage Network
- ALL VM's are connected to the LAN via dedicated NIC's
- (2) NIC's per host are dedicated to iSCSI traffic to the storage segment
In this configuration, the following storage is setup:
(1) 1.5 TB LUN for (7) VM's
(1) 1 TB LUN for (1) VM (Exchange)
(1) 3 TB LUN for a large document repository (over 300 million small-ish files) which is connected as a pass-thru disk to a single VM for document management. This LUN is added as storage to the cluster, and then the storage is assigned to the VM.
What I need to know is: How I can backup this 3TB volume which is connected to a VM as a pass-thru disk? I have done a ONE TIME backup using Symantec Backup-Exec Live state by:
- Taking storage out of the VM
- Taking storage out of the cluster
- Connecting storage to the VM Host locally as a drive letter
- Taking a Symantec Backup Exec Live State image-based backup of the entire partition, which took 15 hours. This is GREAT considering that file backups took over 3 weeks to complete.
I'd like to take a backup ONCE and continue to backup nightly using the partition based DIFFERENTIAL function of Live State...but I have Live State installed on the VM HOST, and the storage network is only accessible to the HOSTS, not to the VM's. I'd like to avoid adding additional NIC's to the Document Management VM into the storage network, but I don't think I can avoid this.
Thoughts are appreciated.