Re: Level - 0 Restore problems
Mark, we could talk in deep, dark tones about why a level 0 from one machine to another is not a good idea. And many a newbie tries that now and then, and fails just as the idiots before him. There are other, more suitable tools designed just for that purpose. So use them. And don't wolf about things you don't know anything about. Nona
Watawinona@aol.com wrote: > > Mark, > > we could talk in deep, dark tones about why a level 0 from one machine to > another is not a good idea. And many a newbie tries that now and then, and > fails just as the idiots before him. > > There are other, more suitable tools designed just for that purpose. So use > them. And don't wolf about things you don't know anything about. Sorry Nona, there is nothing inherently BAD or 'bad idea' about restoring from one machine to another. Indeed I depend on that capability to maintain a sane backup strategy in the face of servers that take over 24 hours to archive. We archive sister machines on a rotating schedule so that I always have a current level 0 from one and level 0 plus level 1 from the other. I keep the disk layouts compatible (I try to keep them identical but that never seems to work) so that I can restore one set to the other machine if that is the faster solution holding the two tape set restore in reserve in case the tapes turn out to be bad. This has worked for me and for my predecessor for eight years and I'm still working here! The problem is that the disk layouts have to be compatible, which is easy if you are running only one instance per machine, meaning all devices are the same size or if larger on one system that the instance ONLY utilizes the smaller size on both systems letting the difference go to waste. Mark is right, and obviously one word to you was not sufficient so here were a few hundred. Your one liners are not useful or helpful and, unless appended or prepended to a functional answer, neither appreciated nor cute. Art S. Kagel
On Tue, 13 Jun 2000 09:21:56 -0400, "Art S. Kagel" <kagel@bloomberg.net> wrote: >Watawinona@aol.com wrote: >> >> Mark, >> >> we could talk in deep, dark tones about why a level 0 from one machine to >> another is not a good idea. And many a newbie tries that now and then, and >> fails just as the idiots before him. >> >> There are other, more suitable tools designed just for that purpose. So use >> them. And don't wolf about things you don't know anything about. > >Sorry Nona, there is nothing inherently BAD or 'bad idea' about restoring >from one machine to another. Indeed I depend on that capability to >maintain a sane backup strategy in the face of servers that take over 24 >hours to archive. We archive sister machines on a rotating schedule so that >I always have a current level 0 from one and level 0 plus level 1 from the >other. I keep the disk layouts compatible (I try to keep them identical >but that never seems to work) so that I can restore one set to the other >machine if that is the faster solution holding the two tape set restore in >reserve in case the tapes turn out to be bad. This has worked for me and >for my predecessor for eight years and I'm still working here! > >The problem is that the disk layouts have to be compatible, which is easy >if you are running only one instance per machine, meaning all devices are >the same size or if larger on one system that the instance ONLY utilizes >the smaller size on both systems letting the difference go to waste. > >Mark is right, and obviously one word to you was not sufficient so here >were a few hundred. Your one liners are not useful or helpful and, unless >appended or prepended to a functional answer, neither appreciated nor cute. > >Art S. Kagel Art, You are obviously right again. As long as we're not talking about going from, say an HP box to an AIX box and you leave the paths the same there should be no problem. It's been done by me 100's of times. I've never before heard of Nona but she seems to be playing cricket in a baseball stadium(i.e. everyone takes a swing but the rules have changed)............ I've got 2+ terabytes to account for on just one of my instances.........Twice a year for Disaster Recovery I restore on a different box in a different part of the country. If this wasn't possible or if it was just done by idiots.......damn I sure as hell wouldn't have a recovery plan. -brian