Shared SAN LUN between Win2K3R2 std Svrs

5 pts.
Tags:
EMC Symmetrix
LUN
SAN
SAN management
Windows Server 2003
Windows Server 2003 R2
Is it possible to share an EMC symentrics LUN between two windows 2003 R2 std servers without having to use third party software like ms clustering? one write and the other read only...
ASKED: October 27, 2008  6:02 PM
UPDATED: November 6, 2008  8:00 PM

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No. In order to present a LUN to more than one server you will need to use something like Windows Cluster Server. Your only option would be to take a snapshot of the LUN and present that snap to the second host.

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To add to this, in order to share a LUN you need someway to “lock” the data on that LUN from being concurrently accessed AND written to. If you didn’t, you’d have data corruption. the Symmetrix (i’m assuming a DMX-3?) really doesn’t care what you do to the data; concurrent access is HOST issue and thus, would require clustering, where each host has awareness as to what the other host is doing to data. If you have TimeFinder/Clone, you could simply clone the lun and mount to a different host. We do this for a lot of reporting situations where performance of the primary production luns cannot be affected by another host.

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