| Eric at Lucii.org on 22 Feb 2013 17:42:13 -0800 |
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| Re: [PLUG] Solaris backup/restore |
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 02/22/2013 04:34 PM, Rich Freeman wrote: > On Fri, Feb 22, 2013 at 2:20 PM, Eric Lucas <eric@lucii.org> wrote: >> dd looks like it might stand for double disaster if the server uses zfs > > I'd be interested in elaboration here. I'd consider dd highly inefficient, but as long as you get all the devices involved you can't go wrong with a complete bit-image of a device (assuming you restore to a device of the same size/geometry/etc). > > Of course, using a more appropriate tool to the filesystem is going to be better all-around. > > Rich I am unable to elaborate other than to say that I think it has to do with the nature of zfs which is not a filesystem per se, but more like a combination of a file system and a logical volume manager. That's just speculation on my part. I'm a 'hack' sys admin in Linux - mostly learned out of self-defense. Looking at the Solaris documents leads me quickly into the "tall weeds" of system admin where I'm truly lost. I *think* that's how it works. Another example: you run something called a miniroot in Solaris - apparently by booting from the install CD. Curiously, you have to patch it to get it to use an Ethernet or DVD/CD device. NOW I really know why Linux kicks ass. Knoppix for Solaris... where are you? Eric Aside: I found out the system in question uses UFS, not ZFS. What does that mean? I have no idea. But soon I will! - -- # Eric Lucas # # "Oh, I have slipped the surly bond of earth # And danced the skies on laughter-silvered wings... # -- John Gillespie Magee Jr -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iEYEARECAAYFAlEoHkUACgkQ2sGpvXQrZ/5rogCgsQTLyuUbGONWZfvUMw7qF7zC pFQAoOjZWYn4vXPkBVn4NXpvj5kIisRD =Xmzm -----END PGP SIGNATURE----- ___________________________________________________________________________ Philadelphia Linux Users Group -- http://www.phillylinux.org Announcements - http://lists.phillylinux.org/mailman/listinfo/plug-announce General Discussion -- http://lists.phillylinux.org/mailman/listinfo/plug