Quoting Yedidyah Bar-David, from the post of Wed, 02 Mar: > On Wed, Mar 02, 2005 at 01:49:53PM +0200, Ira Abramov wrote: > > Howdie people, > > > [snip] > > > > so as you can see, I can understand and forgive FS errors (afterall the > > snapshot is taken while the main LUN is mounted) but I can't explain the > > I/O errors. > > > > My guesses are: > > * these are FS errors misreported as I/O errors (makes little sense) > > Maybe the NAS does not allow (or not easily) reading from snapshots > blocks that were never written to?
it's a SAN, the snapshots are mounted RO since they are only there to be used as netapp-style snapshots, they should show an image of how the system was when the snapshot was taken, and not enable writing of new changes, but obviously show and allow to read any old existing data. > Does it have its own log? Anything interesting in it? I haven't got to the customer's site yet to check, but the EMC box dials out (via its own modem) and sends alerts if there's anything wrong, and nothing was sent out, so I imagine it's all right. > Did you try reading from the disk directly (e.g. with dd)? Does it > work? I will when I will get there during the next week. -- The Apprentice Ira Abramov http://ira.abramov.org/email/ ================================================================= To unsubscribe, send mail to [EMAIL PROTECTED] with the word "unsubscribe" in the message body, e.g., run the command echo unsubscribe | mail [EMAIL PROTECTED]
