Jeff,

We did a local volcopy, moving data from one volume of 18GB FCAL drives to
another volume of 36GB drives.  It was all internal to the filer.  We only
have one FC-AL adapter on our F740.

We got some volcopy specs from NetApp and the max write speed was something
like 18MB/sec for sequential writes.  If you did 180GB in 1hr and 20 min, that
is around 33MB/sec.   How did you manage that?

Thanks
John

> >     c) If you upgrade disks/shelves in the future, you will  likely do it a
> >     volume at a time. We did this with a volume with 180GB  and the volcopy took
> >     6-7 hours to complete.  It is NOT very fast.  With  400GB+ in a volume, that
> >     should be 2-2.5x longer.
>
> How did you run the volcopy?  Over the network or local
> inside a single filer?  What kind of head(s)?
>
> We've found volcopy to be extremely fast, especially for  upgrading disks
> and/or migrating data.  In fact, we used volcopy to relocate  and replicate
> a huge chunk of data when Louis' company and ours split and it was a
> life saver.  We were using F760's, but it took about 1 hr. 20 minutes to
> volcopy ~180GB.  That was all in one head that had both a FC-AL adapter and
> dual SCSI adapters.
>