"David H. Brierley" writes:
I am getting ready to convert from an F220 and an F230 to an F740. Does anyone have any recomendations on how to copy all of the data from the two old filers to the new one? I know I can use dump and restore but I was wondering if maybe "vol copy" would be more efficient. Can I use "vol copy" to copy the entire contents of two existing filers to a single new one? If so, can it merge the contents into a single volume or should I create multiple volumes?
I've used vol copy when the target volume is to be totally overwritten by the source volume.
When merging multiple volumes, ndmpcopy might be of some assistance (I can't remember enough about my experiences with it).
A general principle I use for data migration on UNIX (and can be done on the filers with little effort) is:
cd /dest dump 0f - /src | restore xf - (make src & dest unavailable for the rsync) rsync -vaxH --delete /src/ /dest/ (bring dest online).
rsync is an extremely useful tool, by the same person who gave us samba (Andrew Tridgell). It can be found at: http://rsync.samba.org/ It does a great job of copying only the bits that have changed. I use it as a poor man's snapmirror ;-)
Hope that helps, Luke.