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Access LTO drive on VM

Posted on 2010-09-20
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Last Modified: 2013-11-14
I am running Hyper-v r2 on my host and the drivers are installed and I can see my LTO5 tape drive on the host. How do I add the tape drive to my VM? If I try to add under the SCSI I don't have an option for the tape. All I have is an option to add a HD.
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Question by:comtekso
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by:dovidmichel
ID: 33718719
The SCSI driver at the hardware system level must support Hyper-V.
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by:comtekso
ID: 33718930
How can I tell? Its an IBM TS2350 LTO5 Tape drive.
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by:dovidmichel
ID: 33719114
By SCSI driver, I mean the driver for the controller.
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by:kevinhsieh
ID: 33719291
The only way you can do it is if you can attach to the tape drive via iSCSI. See http://social.technet.microsoft.com/Forums/en-US/winserverhyperv/thread/373e0a18-7eec-4dc5-a8ad-9006e5c7e45b/
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by:jimponder
ID: 33719915
Don't you have to have the Microsoft iSCSI initiator so the unit can talk to Windows?
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by:comtekso
ID: 33719949
I do have the MS iSCSI initiator but the TS2350 is a SAS drive.
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kevinhsieh earned 167 total points
ID: 33720474
You would need to put an iSCSI to SAS bridge in place on the tape drive. I don't know if you'll find that to be cost effective for whatever you're trying to do.
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by:dovidmichel
ID: 33720789
I stand corrected, Hyper-V as mentioned above does not support SCSI Pass Through. My advice is to forget about a kludge work-around and forget about using a Hyper-V install for a backup server.
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by:andyalder
andyalder earned 166 total points
ID: 33721408
It worked with VMware passthru SCSI and the whole PCI bus but it's hyper-V

How about shoving the tape drive in an old PC and using iSCSI target starwind plus windows to make it into an iSCSI tape drive?
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by:dovidmichel
dovidmichel earned 167 total points
ID: 33726956
Concerns with iSCSI are throughput and errors especially with LTO5. So if going with iSCSI you will need to plan for a 10gb network connection and 3rd party iSCSI drivers or you will get no ware near the potential throughput of that drive.

I've used starwind and it works well, if high performance is not an issue and you have the hardware around and don't mind spending the time set it up and test it out. If free time is an issue for you just use that other system as your backup server and be done with it. A backup server with a single tape drive does not need a high end processor and lots or RAM, it does need good I/O.
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