The upgrade is something we used to do on solaris boxes, it's about applying patches, or installing software. When we did that, we disconnected one side of the mirror, then did the upgrade/patch/install. If it went fine, we resynced the mirrors as normal, but on failure, we resynced from the disconnected (original) mirror.
Both disksuite and veritas VM have this functionality. On Fri, 2003-11-14 at 17:40, Mike Williams wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > On Friday 14 November 2003 11:15, Guy Van Sanden wrote: > > Hi > > > > I'm wondering if Logical Volume Manager can handle a setup I am > > considering. > > I have a system with two 40 GB IDE drives. > > hda > > / > > /boot > > <swap> > > /tmp > > /data (includes home) > > /usr > > > > The second disk (hdb) should contain the same partitions, but mirrored. > > > > The ultimate goal would be that if either hda or hdb failed, the system > > would keep running until I could replace a disk. > > > > Is any of this possible with LVM? Is it stable? > > Could the system still boot if one disk failed (e.g. hdb)? > > As Peter mentioned, it's not likely to. > But what you really want is RAID. It will handle the reconstruction of the > mirror if one failed. > > > Can I disable the mirrors temporary when performing an upgrade? (to get > > the chance to turn it back). > > I've seen this stuff done with Veritas, and I'd be cool to have it on a > > Free Linux box. > > What do you mean by 'upgrade', swapping out a disk for a bigger one? > I suppose just removing the old disk would disable it, and putting a new one > in would restart it. Have no idea how it would handle any change in size > though. > > - -- > Mike Williams > -----BEGIN PGP SIGNATURE----- > Version: GnuPG v1.2.3 (GNU/Linux) > > iD8DBQE/tQWXInuLMrk7bIwRAjMUAJ4rmyELqy2qPkoFjHGXR7HRGDI8ygCdEnxC > jr0Z2cbdgNmvdWg3LMR7Vt4= > =MS6u > -----END PGP SIGNATURE----- > > -- > [EMAIL PROTECTED] mailing list -- ______________________________________________________________________ Guy Van Sanden http://unixmafia.port5.com Registered Linux user #249404 - September 1997 ______________________________________________________________________ -- [EMAIL PROTECTED] mailing list
