Hello,
I'm checking to see what the recommended settings are when using BackupExec on a HyperV VM with a SCSI connected tape library on the host.
Details:
All servers Windows 2008R2 Enterprise FULL (guest and host)
Tape library HP MSL2024 with SCSi Ultrium LTO4 drive
Host NIC Adapters - Broadcom NetXtreme
Guest running BackupExec 2012 with Symantec tape drivers installed
Host using HP tape drivers to get tape and library to appear from presentation via iSCSI
Latest version (at time of writing) of Starwind Tape Redirector
I've had a few issues with getting the library and drive to be recognized post boot, but this seems OK now - the only issue I have is the actual through-put. As the guest is connecting to the host via the internal VMBus, I wouldn't have through that network speed would be an issue put maybe it is and I'm down to about 20% of the throughput I did have with the same hardware.
Pre Virtualisation throughput - 4500 MBps, post virtualisation throughput 980 MBps
Any tips or things I should check to improve the performance?
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