-------------- Original message ---------------------- From: redhatdude@xxxxxxxxxxxxx > > > > -------------- Original message ---------------------- > From: Bill Davidsen <davidsen@xxxxxxx> > > > > redhatdude@xxxxxxxxxxxxx wrote: > > > Hi, > > > When creating a RAID 1 in F9. > > > Does it make sense to make the /boot partition on both discs a RAID too? > > I have /boot and / as RAID 1 (dm-0 and dm-1). If I disconnect one of the > > drives, the computer freezes. Isn't the RAID supposed to keep it running? > > > I'm really new to this, so any help is appreciated. > > > > > Are you sure /boot is on a raid partition, and not on a dm pseudo > > device? If you created a partition on your drives, made a raid-1 of the > > two partitions (100-200MB is good), and then did whatever with the rest > > of your disk, you should be fine. > > > > If you made one huge raid array and used dm to break it up, you are not > > fine. Do "cat /proc/mdstat" and see that there is a small raid-1 for > > boot, and "df" to check that /dev/mdX is mounted on /boot. If that's the > > case you should be good, otherwise you probably don't boot off one drive. > > > > NOTE: your BIOS may not boot off the 2nd drive if the 1st drive is > > present and has data errors, should if the 1st drive is dead. Some BIOS > > do, some don't. > > > > -- > > Bill Davidsen <davidsen@xxxxxxx> > > "We have more to fear from the bungling of the incompetent than from > > the machinations of the wicked." - from Slashdot > > This is the output of df. > > Filesystem 1K-blocks Used Available Use% Mounted on > /dev/md1 470535632 3951984 442681744 1% / > /dev/md0 99099 12499 81484 14% /boot > tmpfs 2032168 48 2032120 1% /dev/shm > > And this is the output of cat /proc/mdstat > Personalities : [raid1] [raid6] [raid5] [raid4] > md0 : active raid1 sdb1[1] sda1[0] > 102336 blocks [2/2] [UU] > > md1 : active raid1 sda3[0] sdb3[1] > 478038080 blocks [2/2] [UU] > > unused devices: <none> > > > I have two drives with /boot and / > If I unplug the first one, the system remains up and running. If I however > unplug the second one, the system becomes unstable, X crashes, and eventually > the system becomes irresponsive. > Why does this happen with one disk only? > Thanks, > EJ > > > -- > fedora-list mailing list > fedora-list@xxxxxxxxxx > To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list To answer my own question. The problem is that the swap partition is only on one disk and it's not RAIDed. So when I unplug the drive with the swap partition, the system goes down. The next step would be to create a RAID for swap and make the system use it. EJ -- fedora-list mailing list fedora-list@xxxxxxxxxx To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list
