Hi Brian and all. Snapmirror does xfer the source volume's snapshots over to the target volume, so that space has to be considered as well. In general you need as much or more space available on the snapmirror target. Have a look at section 4. in this white paper, it explains it well:

http://www.netapp.com/tech_library/3043.html

Another good doc on snapmirror is here:

http://now.netapp.com/NOW/knowledge/docs/olio/guides/TR3073.shtml

Please keep in mind that these docs are due for updating when it come to performance details when considering snap create and blockmap xfer times and their (huge) improvements in ONTAP 6.x.

Regards,

Grant

-----Original Message----- From: Brian Tao [mailto:taob@risc.org] Sent: Saturday, December 23, 2000 1:54 PM To: Lance R. Bailey Cc: 'Traitel Eyal'; toasters Subject: Re: snapmirror quarry...

On Fri, 22 Dec 2000, Lance R. Bailey wrote:

snap mirror is a front to vol copy. think of vol copy as "dd" ie: block level.

Does this include or exclude snap reserve space? Vol copy does not require that you duplicate snapshots of a volume, so I assume SnapMirror is the same?