Luns limitation on Veeam physical server?

[vash]

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.]

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]

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]

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

Marco

[vash]

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

[m.novelli]

No registry hack. Boot time is normal

Marco

[vash]

Good to know. Thanks.