I will correct myself - 1 drive lost, and while dead another drive was taken "removed" putting it offline, then reinstalled (no data loss occured on this drive.). The net effect was the raid5 lost 2 drives for only a couple seconds, but 1 of which was out for a couple hours. Tom Hudak wrote: > I'm going OT! > > My $.2, > > I have a fbsd box running vinum in raid 5 and had 2 of 7 drives fail > w/o issue. Albeit the system slowed to a crawl but it stayed alive > long enough for 2 hot spares to be put in place and all was well.. The > machine is still online at ~190 days of uptime, this took place around > day 30. It depends on how many drives, how much cache, and how well > the RAID software is written regardless of whether it's hardware or > software based. > (I'd like to see if a windows software raid5 could loose 2 of 7 in an > array and stay upright.) > > You are obviously never going to loose 2 of 3 drives in a 3 drive > raid5 and walk away with your data.. > > -Tom > > smac at visi.com wrote: > >> It depends on whose raid controller you are using. >> >> If it's a newer HP/Compaq controller you can have 2 drives fail >> replace the failed drives one at a time "HOT" and not miss a read or >> write. >> >> Sam. >> >> Quoting "jimstreit at northlans.com" <jimstreit at northlans.com>: >> >> >> >>> With RAID 5 if 1 drive fails your OK, but if 2 fail, your dead and >>> looking >>> for >>> your backup, backup, backup. >>> >>> Quoting smac at visi.com: >>> >>> >>> >>>> The word "refurbished" is a misnomer; generally a refurbished drive >>>> is a >>>> "used" >>>> drive. In general the drive was returned with a machine coming off >>>> a lease. >>>> I'm still using both ATA and SCSI drives that were used/refurbished >>>> without >>>> >>> >>> a >>> >>> >>>> problem. Be aware that they may fail and understand that it's your >>>> risk. >>>> >>>> Backup, Backup, Backup, is the only thing I can say about used drives. >>>> >>>> I run 5 Seagate Barracuda SCSI drives in my Proliant in a RAID 5 >>>> configuration, >>>> this limits data loss if 1 or 2 drives fail. >>>> >>>> Sam. >>>> >>>> >>>> Quoting Sreekumar Kodakara <skodak at cs.umn.edu>: >>>> >>>> >>>> >>>>> Hi, >>>>> >>>>> I am on the look out for Ultra320 SCSI disk drives. This is to >>>>> increase >>>>> the storage capacity of one of our Itanium-2 servers, which we use >>>>> for >>>>> >>>> >>> our >>> >>> >>>>> research. I checked out at bizrate.com and found drives (73.4 GB, >>>>> maxtor >>>>> and seagate) starting at $130 for refurbished ones and $230 for >>>>> new ones. >>>>> Sisnce we have some constraints on purchases > $200, we are >>>>> thinking of >>>>> getting regurbished ones. Are refurbished drives reliable? Any >>>>> good/bad >>>>> experiences? Any good place to get such drives? >>>>> >>>>> Thanks >>>>> >>>>> Sreekumar >>>>> >>>>> _______________________________________________ >>>>> TCLUG Mailing List - Minneapolis/St. Paul, Minnesota >>>>> Help beta test TCLUG's potential new home: http://plone.mn-linux.org >>>>> Got pictures for TCLUG? Beta test http://plone.mn-linux.org/gallery >>>>> tclug-list at mn-linux.org >>>>> https://mailman.real-time.com/mailman/listinfo/tclug-list >>>>> >>>> >>>> _______________________________________________ >>>> TCLUG Mailing List - Minneapolis/St. Paul, Minnesota >>>> Help beta test TCLUG's potential new home: http://plone.mn-linux.org >>>> Got pictures for TCLUG? Beta test http://plone.mn-linux.org/gallery >>>> tclug-list at mn-linux.org >>>> https://mailman.real-time.com/mailman/listinfo/tclug-list >>>> >>>> >>> >>> >>> >>> ---------------------------------------------------------------- >>> This message was sent using IMP, the Internet Messaging Program. >>> >>> >>> _______________________________________________ >>> TCLUG Mailing List - Minneapolis/St. Paul, Minnesota >>> Help beta test TCLUG's potential new home: http://plone.mn-linux.org >>> Got pictures for TCLUG? Beta test http://plone.mn-linux.org/gallery >>> tclug-list at mn-linux.org >>> https://mailman.real-time.com/mailman/listinfo/tclug-list >>> >> >> >> _______________________________________________ >> TCLUG Mailing List - Minneapolis/St. Paul, Minnesota >> Help beta test TCLUG's potential new home: http://plone.mn-linux.org >> Got pictures for TCLUG? Beta test http://plone.mn-linux.org/gallery >> tclug-list at mn-linux.org >> https://mailman.real-time.com/mailman/listinfo/tclug-list >> >> > > > _______________________________________________ > TCLUG Mailing List - Minneapolis/St. Paul, Minnesota > Help beta test TCLUG's potential new home: http://plone.mn-linux.org > Got pictures for TCLUG? 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