Corey Edwards wrote: > Nor would I, although we did run into a bug with a combination of a Dell > PowerVault and LVM which caused the volumes to stop responding whenever > we created more than a single snapshot. We never did find a solution > other than just making one snapshot. Still, it's been solid every other > time I've used it and I wouldn't hesitate again. > > What are the features of Veritas that he likes? I've never used it > before so have no idea if LVM would be a comparable replacement.
Also, be careful when making writable snapshots. If you make a writable snapshot of size x and then modify more than x worth of blocks on the original file system, the Linux kernel will fail in a spectacular way. This would happen for any type of snapshot, actually. That said, writable snapshots are very useful when you do them correctly. I wonder if anything could be done to make Linux handle I/O errors more gracefully. Seems like even CDROM read errors can sometimes drag the entire system to a halt, with everything hitting the uninterruptible sleep state. > > Corey > > > > > > /* > PLUG: http://plug.org, #utah on irc.freenode.net > Unsubscribe: http://plug.org/mailman/options/plug > Don't fear the penguin. > */ > -- Michael Torrie Assistant CSR, System Administrator Chemistry and Biochemistry Department Brigham Young University Provo, UT 84602 +1.801.422.5771 /* PLUG: http://plug.org, #utah on irc.freenode.net Unsubscribe: http://plug.org/mailman/options/plug Don't fear the penguin. */
