What is this resize limit you are talking about? I didn't know about any restrictions.
Cheers, André
When you first create a LUN its "geometry" is set based on the initial size. By geometry I mean the number of heads, number of cylinders, sectors/cylinder, bytes/sector (pseudo values required by SCSI.) When you enlarge a LUN, some (but not all) of these values can be increased and eventually you hit a limit. (Perhaps you can only grow LUNs in units of cylinders -- not sure) So if you create a 1 GB LUN, then its geometry is constrained by this small size. Later on if you try to grow the LUN to over 1 TB then you will need to increase a geometry parameter (cylinders?) beyond the SCSI limit. Had you created a 500G LUN to begin with, the initial geometry would have been different and it would be able to grow to 1 TB. This is all rather silly because a LUN on a netapp doesn't actually have a geometry. This is an artifact of the SCSI protocol, which specifies disk blocks by head, cylinder, and sector.
-----Ursprüngliche Nachricht----- Von: owner-toasters@mathworks.com [mailto:owner-toasters@mathworks.com] Im Auftrag von Bill Holland Gesendet: Freitag, 30. Mai 2008 23:21 An: Suresh Rajagopalan; toasters@mathworks.com Betreff: Re: Resize lun more than 10x
I would suspect that you would have to create a new one, mount it, and copy the contents from the original.
----- Original Message ----- From: "Suresh Rajagopalan" SRajagopalan@williamoneil.com To: toasters@mathworks.com Sent: Friday, May 30, 2008 2:15 PM Subject: Resize lun more than 10x
Hi,
I am running up against the 10x limit to resize a lun. How do I copy the lun to one with a larger size?
Thanks Suresh
Steve Losen scl@virginia.edu phone: 434-924-0640
University of Virginia ITC Unix Support