Geoff,

Easiest and fastest is to set up crossover cables and use snapmirror. If you have multiple interfaces free (a quad card maybe) interfaces can be trunked with vif; with a single crossover line I saw a vol with 185 gig of data mirrored in about 6 1/2 hours.

Syntax is dead easy, source -> destination; waldorf is the source filer here.

netapp-demo> snapmirror initialize -S waldorf:domain2 netapp-demo:domain2 netapp-demo> rdfile /etc/snapmirror.allow waldorf netapp-demo>

-- Dave Toal Unix Mostly Thomson & Thomson N. Quincy, MA

-----Original Message----- From: Geoff Hardin To: toasters Sent: 9/30/02 9:26 AM Subject: large data move

I am contemplating moving an entire filer from 18 GB drives (many, many problems) to 36 GB drives; the reasons are an entirely separate posting. My question is, what is the fastest, most reliable way to move the data? This past weekend, I moved about 100 GB in four different qtrees with ndmpcopy, and each qtree averaged about 40 hours to move (between 34 to 44 hours). I am looking at moving three times that amount of data on this other filer. I seem to recall using snapmirror or snaprestore when we migrated from an F630 to our F760C, but that was quite some time ago. I was wondering if anyone had stories, recommendations, pointers on what is the best method to transfer data.

Thanks to all in advance!

Geoff Hardin geoff.hardin@dalsemi.com

Gun control is a steady hand!