Mount two Xsan volumes hosted by different MDC

Question

For several reason, we need to create two Xsan volumes hosted by different MDC group.
Assume that Xsan volume 1 is hosted by MDC1, MDC2 (fail-over configuration), and Xsan volume 2 is hosted by MDC3, MDC4 (fail-over configuration).
Is it possible that an Xserve or MacPro simultaneously mount these two Xsan volumes?
Of course, under the assumption that FC cables and ethernet cable are connected correctly.
I know that each MDC group has their own .auth_secret file and makes same .auth_secret file in client's config directory.
So I think it's not a piece of cake.
Long time ago, I read an article which say it is possible in SNFS environment with proper fsroute file configuration.
But I hope there is a way for this in Xsan environment.
Any comment will be appreciated.
Steve
Xserve G5 2.3 DP, PowerMac G5 2.7 DP   Mac OS X (10.4.8)   Xsan 1.4

Answer 1

Hi,
you have to modify three files in the config dir:
fsnameservers:
#mention the IP's of all the MDC's here:
IPPrimMDC1 0
IPFailMDC1 1
IPPrimMDC2 0
IPFailMDC2 1
automount.plist
#mention all mountpoints here like this:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple Computer//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>volume1</key>
<dict>
<key>AutoMount</key>
<string>rw</string>
<key>MountOptions</key>
<dict/>
</dict>
<key>volume2</key>
<dict>
<key>AutoMount</key>
<string>rw</string>
<key>MountOptions</key>
<dict/>
</dict>
</dict>
</plist>
Off course you can mount mamualy first:
mkdir /Volumes/volume2
mount -t acfs volume2 /Volumes/volume2