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Direct Lun Access

Direct Lun Access

Direct Lun Access

Current setup:  Multiple servers running Windows Server 2000/2003 (Non-Virtual).  CX500 mirrored to a DR Site.  I've been asked to find a way to take a, or several, VMWare servers to the DR Site have multiple Windows images up and running so in case of a disaster I can hand the mirrored LUNS to a VM machine and keep going.  Is this even possible?  How do I keep VM from formatting, writing disk signatures, rewriting the file system etc. when I promote the mirrors and try to hand over access?

RE: Direct Lun Access

you can have direct access to LUNs from a virtual machine, but you can't have those LUNs assigned to the VM, because a remote mirror in CX500 can't be in a storage group while they are a secundary mirror.  In order to have access to the secundary mirrors you need to fracture the mirror, assign it to a Storage Group (where VMWare lives) and then assign the LUNs to the VM as a new disk device (using direct access), but with the VM off.


Chacal, Inc.

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