Comments on: Slowly but surely I’m getting back into things… http://blog.50micron.com/2007/06/14/slowly-but-surely-im-getting-back-into-things/ Ranting and raving about storage and technology Mon, 19 Dec 2011 15:36:52 +0000 hourly 1 http://wordpress.org/?v=3.2.1 By: Jesse http://blog.50micron.com/2007/06/14/slowly-but-surely-im-getting-back-into-things/comment-page-1/#comment-6564 Jesse Wed, 24 Dec 2008 05:03:18 +0000 http://www.sangod.com/?p=145#comment-6564 There are two ways to do this. 1> Using LVM you can activate the snap/clone, present the lun to the host, and re-import the VG which changes the PVID's of the disks. 2> Not using LVM you simply activate the snap, re-present the lun to the host, re-scan the bus, and mount the new lun to a different directory. That being said snapping a lun back to the same host seems counter-productive doesn't it? The whole purpose would be to off-load the backup cycles to a different host, whereas this way you'd be competing with production for CPU/Memory resources. Be easier just to use the internal Snapshot capability of the LInux LVM. There are two ways to do this.

1> Using LVM you can activate the snap/clone, present the lun to the host, and re-import the VG which changes the PVID’s of the disks.

2> Not using LVM you simply activate the snap, re-present the lun to the host, re-scan the bus, and mount the new lun to a different directory.

That being said snapping a lun back to the same host seems counter-productive doesn’t it? The whole purpose would be to off-load the backup cycles to a different host, whereas this way you’d be competing with production for CPU/Memory resources.

Be easier just to use the internal Snapshot capability of the LInux LVM.

]]> By: Daniel http://blog.50micron.com/2007/06/14/slowly-but-surely-im-getting-back-into-things/comment-page-1/#comment-6563 Daniel Tue, 23 Dec 2008 15:39:34 +0000 http://www.sangod.com/?p=145#comment-6563 Hi all, I was looking around the web for EMC related information and came across this site. I have a question for all of the EMC gurus out there. Has anyone successfully been able to take an EMC mirror/clone/snap taken from a Linux server and mount the mirror/clone/snap on the same server as the source volumes? Hi all,

I was looking around the web for EMC related information and came across this site. I have a question for all of the EMC gurus out there.

Has anyone successfully been able to take an EMC mirror/clone/snap taken from a Linux server and mount the mirror/clone/snap on the same server as the source volumes?

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