> -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of P.U.Kruppa > Sent: Monday, June 20, 2005 9:28 AM > To: Ted Mittelstaedt > Cc: P.U.Kruppa; freebsd-questions@freebsd.org > Subject: RE: Yet another RAID Question (YARQ) > > On Mon, 20 Jun 2005, Ted Mittelstaedt wrote: > > >> On Sun, 19 Jun 2005, Ted Mittelstaedt wrote: > >> > >>> > >>> What model of Proliant? > >> ML 350 G4 > >> > > > > Oh good, we have a customer that has been looking at one of > these for > > FreeBSD and I'm glad to hear that you didn't have problems with it. > Absolutely smooth - and I am really no kind of computer expert. > > > With these all you get is hot-swap support although you > might have to > > do a camcontrol rescan after swapping the disk. > Yes, I have read that in some recent thread. > > > Actually, the Windows management tools for this raid > controller on a > > server are observational as well. There is no rebuild tool or > > anything like that. > > When we set these systems up > > for customers (All the recent Proliants use the same RAID > controller) > > we usually configure them RAID-5 with 4 physical disks, the > setup will > > set 3 of the disks in the array, and one a hot-spare. And in the > > event of a disk failure, which you can tell by looking at the disk > > drive lights, or going into the management interface, you > simply pull > > out the bad disk and put in the replacement and the RAID card takes > > care of the rest of it. > The City of Wuppertal couldn't buy me a third disc, because > that would have superceded the limit of 2.5 kEURO, which > would have required some special administrative act ... :-) . > > > As for knowing if a disk has failed, > > I think the only way to know is to watch the little lights > on the disk > > front. > After reading Alex' story about running a RAID 1 with a > defect disc for three years, I believe it will suffice, when > I check things with every system upgrade.
I know this technique isn't feasable in all situations, but I try to have duplicate hardware. Especially with my IDE RAID1 servers, I'll from time to time during a maintenance window pop one of the RAID disks out, throw it in another box and ensure BOTH machines boot up with individual disks. This is a sure test to ensure RAID is working. Mind you, I also back up using rsync for critical stuff to another box, and to tape as well. Steve > > Uli. > > > ********************************************* > * Peter Ulrich Kruppa - Wuppertal - Germany * > ********************************************* > _______________________________________________ > freebsd-questions@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to > "[EMAIL PROTECTED]" > _______________________________________________ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"
