You should understand implications of it. Fractional reserve allows you to cheat. But if you set it to 10% and in reality need 20%, writing to LUN will fail unless snapshots are deleted (can be done automatically in new versions).
С уважением / With best regards / Mit freundlichen Grüβen
--- Andrey Borzenkov Senior system engineer -----Original Message----- From: owner-toasters@mathworks.com [mailto:owner-toasters@mathworks.com] On Behalf Of Holland, William L Sent: Monday, December 03, 2007 9:25 PM To: Raj Patel Cc: Milazzo Giacomo; toasters@mathworks.com Subject: RE: Can't expand SnapDrive for Windows drive
You can lower it. vol options <volname> fractional_reserve xx
-----Original Message----- From: Raj Patel [mailto:phigmov@gmail.com] Sent: Monday, December 03, 2007 1:02 PM To: Holland, William L Cc: Milazzo Giacomo; toasters@mathworks.com Subject: Re: Can't expand SnapDrive for Windows drive
The default is to have a volume at least twice the size of a LUN to
accomodate at least one full snapshot.
I have heard the new versions of DataOntap and SnapDrive allow for a lower ratio - I'm guessing you can't retrospectively upgrade and reduce the space allocation on existing volumes ?
Or have I misheard the capabilities of the new versions ?
Cheers, Raj.