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Linux iSCSI Target LUNs

Posted on 2010-09-07
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Last Modified: 2012-05-10
Hi,

I've got a quick question:

Is there a way to provision LUNs on a Linux iSCSI target server as files on a volume rather than as a partition of a device? NetApp does it this way and I'm just wondering if it's possible to do this on Linux.

Thanks!
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Question by:Pugglewuggle
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by:slemmesmi
ID: 33624143
Dear Pugglewuggle,

can you provide more details of the scenario you wish to have?

Kind regards,
Soren
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by:Pugglewuggle
ID: 33626913
Well, I just have a Linux server with a multi terabyte RAID array. Instead of partitioning the array and then sharing the partitions as LUNs, is there a way to just have one [big] partition and just have LUNs exist as files on that partition (so they can be expanded/resized without having to repartition the array)? This is how NetApp does it... files that are shared as LUNs are put directly on the partition/volume as a file that is x size equaling the reserved space for the LUN.
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slemmesmi earned 500 total points
ID: 33628346
Dear Pugglewuggle,

I assume you wish to do this as a "test environment" or?
You can then eventually benefit from the NetApp ONTAP Simulator, which you can obtain for free as a customer of NetApp (which I assume you are due to your knowledge of NetApp).
With the simulator (which is built for Linux), you can simulate NetApp FAS' (even a cluster!), and you can create LUNs etc. perfectly available via iSCSI or NFS.

Go to NOW.NetApp.Com and Login.
When logged in, select the "Utility ToolChest" (in the Download section), and click the "74. Simulate ONTAP" link.
This will take you to a page where you can download different versions of the simulator.
You can find a lot of useful information about the simulator in the NetApp communities and forums.

Kind regards,
Soren
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by:Pugglewuggle
ID: 33744106
Well,

I suppose I want to use this for "production." Any tips? And what kind of hardware can I run this on?
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