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> > Buy IDE disks in pairs use md1, and remember to continually send the > > hosed ones back to the vendor/shop (and if they keep appearing DOA to > > your local trading standards/fair trading type bodies). > > > I buy three drives at a time so I have a matching spare, because AFAIC > you shouldn't be doing RAID on unmatched drives. Err, yes you should :-). Unless they are spindle syncronised, the advantage of identical physical layout diminishes, and the disadvantage of quite possibly getting components from the same, (faulty), batch increases :-). > Using RAID1 is especially important when using software instead > of hardware for fault-tolerance because the software is more likely to > have bugs just because of the 'culture' of hardware vs. software > developers, and the RAID5 algorithm is very hard to get right anyway, > especially in failure/rebuild mode. Even on a hardware controller > RAID5 is still inherently less reliable. The advantage of RAID1 over a SLED is probably greater than the advantage of RAID5 over RAID1. > (...and what's all this about unreliable drives, anyway? Every drive > I have bought since 1987 still works.) I haven't had a drive failiure for a long time. Maybe I'm just really lucky. John. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ | ||||||||||||
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