Hi, > I had a 4 disk pata RAID0 with 1 sata spare. > The 4 disk pata array was made using 2 PCI card, 2 drives per card. > It seems that one of the cards was loose, and so I lost 2 drives at once. > Please tell me I haven't just lost everything on the array... If a card is lost, that doesn't mean the drives are defect now? You only need to get a new card? If thats true, no data is lost at all, you just can not access it until you get a new card. If one DRIVE fails, all data in a RAID0 is lost. A spare disk doesn't make sense for RAID0 since if a drive fails, the array contents are lost and there is nothing that can be written to the spare disk! Consider using a RAID5 over all disks without a spare. A RAID5 can handle a single disk failure without data loss. A RAID5 consisting of n disks has n-1 the capacity of a single disk, the same as a RAID0 with a "spare". Or use RAID0+1. A RAID0+1 consisting of n disks has the capacity of n/2 disks but it can handle a single disk failure and in some cases even more disk failures depending on what disks fail. Viele Grüsse, Thorsten -- Thorsten Jungblut Universität Koblenz, Fachbereich Informatik http://www.netcorner.org/ _______________________________________________ Ataraid-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/ataraid-list
