On Apr 2, 2010, at 5:08 AM, Edward Ned Harvey wrote: >> I know it is way after the fact, but I find it best to coerce each >> drive down to the whole GB boundary using format (create Solaris >> partition just up to the boundary). Then if you ever get a drive a >> little smaller it still should fit. > > It seems like it should be unnecessary. It seems like extra work. But > based on my present experience, I reached the same conclusion. > > If my new replacement SSD with identical part number and firmware is 0.001 > Gb smaller than the original and hence unable to mirror, what's to prevent > the same thing from happening to one of my 1TB spindle disk mirrors? > Nothing. That's what. > > I take it back. Me. I am to prevent it from happening. And the technique > to do so is precisely as you've said. First slice every drive to be a > little smaller than actual. Then later if I get a replacement device for > the mirror, that's slightly smaller than the others, I have no reason to > care.
However, I believe there are some downsides to letting ZFS manage just a slice rather than an entire drive, but perhaps those do not apply as significantly to SSD devices? Thanks -- Stuart Anderson ander...@ligo.caltech.edu http://www.ligo.caltech.edu/~anderson _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
