On Wednesday 19 May 2010 12:13:12 Bryn M. Reeves wrote: > On 05/19/2010 12:04 PM, Gary Stainburn wrote: > > Hi folks, > > > > I've got a PC with 5x500GB HDD's running software raid. On drive 0 and 1 > > I had RAID0 for the boot partition and then on all 5 drives I had RAID 5 > > for everything else. > > Why use RAID0 for the boot partition? That means that a failure of > either drive will make the system unbootable (since half the file system > needed for booting is on the dead device). > > I tend to use RAID1 for boot devices, RAID5 for general storage (where I > either don't care too much about write performance or expect a low level > of write I/O). I would only use RAID0 for transient data that can be > easily regenerated after a hardware failure (or combine it with RAID1 if > you need to combine redundancy with better write performance but make > sure you understand the way that different stackings behave[1]). Sorry Bryn, I mean RAID1. I thought that with RAID1, if I disconnected the dead one it should either just work, or i should be able to access both that and the RAID5 setup from the bood DVD. However, as I said, it won't boot and the rescue DVD doesn't see the Linux partitions, presumably because it can't/won't use the RAID devices -- Gary Stainburn This email does not contain private or confidential material as it may be snooped on by interested government parties for unknown and undisclosed purposes - Regulation of Investigatory Powers Act, 2000 -- users mailing list users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe or change subscription options: https://admin.fedoraproject.org/mailman/listinfo/users Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines
