-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi Tim, > It is running Fedora Core 4 (don't ask) > I want to swap out the drive with a new one (400GB). > pvmove /dev/hde does not work even though the file system in not full. > It says there are no free extents (or something like that - I don't want > to needlessly turn the machine back on since hde is getting worse) I > guess this is because the underlying stuff is full up. You're right - it's not the file system being full here, rather it's the volume group (VG). You can see this by running either: # vgs VG #PV #LV #SN Attr VSize VFree VolGroup00 1 2 0 wz--n- 33.81G 32.00M # vgdisplay --- Volume group --- VG Name VolGroup00 System ID Format lvm2 Metadata Areas 1 Metadata Sequence No 3 VG Access read/write VG Status resizable MAX LV 0 Cur LV 2 Open LV 2 Max PV 0 Cur PV 1 Act PV 1 VG Size 33.81 GB PE Size 32.00 MB Total PE 1082 Alloc PE / Size 1081 / 33.78 GB Free PE / Size 1 / 32.00 MB VG UUID R3OVax-yaLB-4SDX-V05w-BQSM-eKfV-dnLE2P > It would be nice if I could just dd the failing drive onto the new drive > and replace it (using linux on a cd) but I have no reason to believe > this will work - will it? This should work OK, although as usual with backups you want to make sure that nothing is writing to the disk while you take the dd - using a rescue CD would be fine, or deactivating the volume group before starting (but if it includes your root file system then you will need to use a rescue CD). > Has anyone got a step by step guide of what to do? I guess I must shrink > the filesystem and then whatever that sits on. That may work, but you'll need to make enough space within the VG to accommodate all the data that is currently stored on the failing hde. To do this, you first have to shrink file systems from the VG, then shrink the logical volumes (LVs) that the file systems are sitting on. Another option would be to add the new drive to the system and run: pvcreate /path/to/new/disk followed by: vgextend <VG name> /path/to/new/disk To temporarily bring the VG up to 10 disks to allow you to remove the failing member. You should then find the "pvmove /dev/hde" works as expected (assuming the new disk is at least as big as the one you are replacing). > This seems to depend on the version of LVM one is running. I have no > idea what version comes with Fedora Core 4 or how to find out. You'll have lvm2 in FC4, although it's a relatively old version now. Kind regards, Bryn. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.7 (GNU/Linux) Comment: Using GnuPG with Fedora - http://enigmail.mozdev.org iD8DBQFGAqbK6YSQoMYUY94RAlG0AJwPGQ60wQ6NyjnouTL9/NsY0fyrwACfdGeS pyksRh8UAdGrSwlbm2HJ+tI= =39ku -----END PGP SIGNATURE----- _______________________________________________ linux-lvm mailing list linux-lvm@redhat.com https://www.redhat.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
