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vash
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Luns limitation on Veeam physical server?

Post by vash » Feb 07, 2011 4:29 pm

I'm planning to install VEEAM on a physical server with Windows server 2008 R2 Enterprise and use SAN mode to backup the VMs. Is there a limitation on the number of LUNs that can be presented to to this Windows server? I'm guessing there is a maximum number at the OS level, HBA or somewhere, but I can't seem to find much information on this. There are about 80 LUNs that I'm looking to present to it. Can anyone chime in on this?

Alexey D.

Re: Luns limitation on Veeam physical server?

Post by Alexey D. » Feb 07, 2011 5:01 pm

Hello,

As per this article http://technet.microsoft.com/en-us/libr ... 10%29.aspx,
Maximum volumes per server --- Approximately 2,000 volumes
Rather old arcticle and written about Windows 2003 series, but my guess that Windows 2008 R2 is also good at these numbers :)

vash
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Re: Luns limitation on Veeam physical server?

Post by vash » Feb 07, 2011 6:20 pm

Thanks. I actually came across to the same article on Windows 2003. It would be great if someone who might have done this before can provide some insight on this as well....

m.novelli
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Re: Luns limitation on Veeam physical server?

Post by m.novelli » Feb 08, 2011 2:20 pm

Recently I've installed Veeam on a Windows 2008 R2 Enterprise Edition physical server that see 112 LUN... works fine

Marco

vash
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Re: Luns limitation on Veeam physical server?

Post by vash » Feb 08, 2011 3:29 pm

Thanks, Marco. Did you have to make any registry changes to support that many luns? Does it take a long time to boot up?

I also ping'ed Microsoft and the numbers haven't changed since Windows 2003. It's still

8 buses per adapter
128 target IDs per bus
255 LUNs per target ID

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Re: Luns limitation on Veeam physical server?

Post by m.novelli » Feb 08, 2011 7:34 pm

No registry hack. Boot time is normal

Marco

vash
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Re: Luns limitation on Veeam physical server?

Post by vash » Feb 08, 2011 8:28 pm

Good to know. Thanks.

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