Am Montag, 21. April 2008 17:17:49 schrieb michael@xxxxxxxxx: > Quoting Dexter Filmore <Dexter.Filmore@xxxxxx>: > > current situation: > > > > machine with 8 sata ports, currently 4 disks in raid5. > > new array is gonna be 5 disks. > > > > now the question is: pluck one drive, let the array degrade and move data > > as fast as possible to the new array? > > Or: build new array with 4 drivers, then pull old array and grow new > > array to 5 drives? > > Sounds like your new 5 disk array will have brand new disks? and larger? > > If your filesystem allows, you could also just add your new disks in, > one at a time. (assuming your running software raid) > Once all your new disks have been inserted one at a time, you then > grow your raid array to fill up the un used space, and then, you grow > your filesystem to fill up the un used space. > Takes a long time, and becomes more tricky if your array is mounted on > / because then you need to use a rescue disk, or boot CD to modify > your / system. > > Building your new array degraded with 4 disks, copying data, and then > adding 5th disk sounds like it might be the easiest. Nice that you > have the 8 controllers to play with. Andrew Farley already pointed me at that option, whcih I wasn't aware of in the first place. I think I'll go for that, leaves the old array intact. Now about the man page on how to create a degraded array... That 8 ports come from 4 onboard ports and another 4 from a sil3114 card. I wonder why there's not more of those. -- -----BEGIN GEEK CODE BLOCK----- Version: 3.12 GCS d--(+)@ s-:+ a- C++++ UL++ P+>++ L+++>++++ E-- W++ N o? K- w--(---) !O M+ V- PS+ PE Y++ PGP t++(---)@ 5 X+(++) R+(++) tv--(+)@ b++(+++) DI+++ D- G++ e* h>++ r* y? ------END GEEK CODE BLOCK------ http://www.vorratsdatenspeicherung.de -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
