> On Tue, Mar 11, 2003 at 12:04:34AM +0100, Anders Widman wrote: >> >> Is it possible to mount a physical disk with LVM over NFS or Samba? >> >> My current setup: >> >> 10 disks of on LV in one VG. Would it be possible move one disk to >> another computer and still be able to use it in this same LV/VG? >> >> I have been looking at the /etc/lvm/.cache, but it seems as this is >> automatically generated. >> >> All I need is to be able to access the disk to be able to reduce it >> from the LV/VG. > network block device ? > or loopback a file and use that in the lvm. Network Block Device seem to be what I need. Now I have another problem. The network block device works, lvmdiskscan, pvscan and pvdisplay works but NOT vgscan, so I can't activate my VG. Here are some outputs: ------------------------------------------------- lvmdiskscan -- reading all disks / partitions (this may take a while...) lvmdiskscan -- filling directory cache... lvmdiskscan -- walking through all found disks / partitions lvmdiskscan -- /dev/ide/host4/bus1/target0/lun0/part1 [ 55.92 GB] Primary LVM partition [0x8E] lvmdiskscan -- /dev/ide/host4/bus1/target1/lun0/part1 [ 55.92 GB] Primary LVM partition [0x8E] lvmdiskscan -- /dev/ide/host4/bus0/target0/lun0/part1 [ 71.59 GB] Primary LVM partition [0x8E] lvmdiskscan -- /dev/ide/host4/bus0/target1/lun0/part1 [ 71.59 GB] Primary LVM partition [0x8E] lvmdiskscan -- /dev/ide/host2/bus0/target0/lun0/part1 [ 55.90 GB] Primary LVM partition [0x8E] lvmdiskscan -- /dev/ide/host2/bus0/target1/lun0/part1 [ 55.90 GB] Primary LVM partition [0x8E] lvmdiskscan -- /dev/ide/host0/bus1/target0/lun0/part1 [ 76.34 GB] Primary LVM partition [0x8E] lvmdiskscan -- /dev/ide/host0/bus1/target1/lun0/part1 [ 152.66 GB] Primary LVM partition [0x8E] lvmdiskscan -- /dev/ide/host0/bus0/target0/lun0/part1 [ 47.03 MB] Primary LINUX native partition [0x83] lvmdiskscan -- /dev/ide/host0/bus0/target0/lun0/part2 [ 27.74 GB] Primary LINUX native partition [0x83] lvmdiskscan -- /dev/ide/host0/bus0/target0/lun0/part3 [ 854.99 MB] Primary [0x82] lvmdiskscan -- /dev/ide/host0/bus0/target1/lun0/part1 [ 76.34 GB] Primary LVM partition [0x8E] lvmdiskscan -- /dev/nbd0 [ 114.50 GB] USED LVM network block device lvmdiskscan -- 10 disks lvmdiskscan -- 0 whole disks lvmdiskscan -- 0 loop devices lvmdiskscan -- 0 multiple devices lvmdiskscan -- 1 network block device lvmdiskscan -- 12 partitions lvmdiskscan -- 9 LVM physical volume partitions ------------------------------------------------- I am not sure if the last line is correct. There should be 10 partitions (including the nbd0). ------------------------------------------------- pvdisplay -- checking physical volume name "/dev/nbd0" pvdisplay -- reading data of physical volume "/dev/nbd0" from disk pvdisplay -- creating physical volume device number from name "/dev/nbd0" pvdisplay -- checking physical volume activity pvdisplay -- checking physical volume consistency --- Physical volume --- PV Name /dev/nbd0 VG Name Server PV Size 114.50 GB [240121665 secs] / NOT usable 32.19 MB [LVM: 142 KB] PV# 13 PV Status available Allocatable yes (but full) Cur LV 1 PE Size (KByte) 32768 Total PE 3662 Free PE 0 Allocated PE 3662 PV UUID 7ScWsg-0vX4-ccX3-W1sO-mFnz-0Sl0-gDWKmM pvdisplay -- "/etc/lvmtab.d/Server" doesn't exist ------------------------------------------------- This is the same disk when I run pvdisplay on the computer hosting the network block device (nbd-server). ------------------------------------------------- pvdisplay -- checking physical volume name "/dev/hdc1" pvdisplay -- reading data of physical volume "/dev/hdc1" from disk pvdisplay -- creating physical volume device number from name "/dev/hdc1" pvdisplay -- checking physical volume activity pvdisplay -- checking physical volume consistency --- Physical volume --- PV Name /dev/ide/host0/bus1/target0/lun0/part1 VG Name Server PV Size 114.50 GB [240121665 secs] / NOT usable 32.19 MB [LVM: 142 KB] PV# 13 PV Status available Allocatable yes (but full) Cur LV 1 PE Size (KByte) 32768 Total PE 3662 Free PE 0 Allocated PE 3662 PV UUID 7ScWsg-0vX4-ccX3-W1sO-mFnz-0Sl0-gDWKmM pvdisplay -- "/etc/lvmtab.d/Server" doesn't exist ------------------------------------------------- When I run pvscan: ------------------------------------------------- pvscan -- reading all physical volumes (this may take a while...) pvscan -- walking through all physical volumes found pvscan -- inactive PV "/dev/ide/host4/bus1/target0/lun0/part1" is associated to unknown VG "Server" (run vgscan) pvscan -- inactive PV "/dev/ide/host4/bus1/target1/lun0/part1" is associated to unknown VG "Server" (run vgscan) pvscan -- inactive PV "/dev/ide/host4/bus0/target0/lun0/part1" is associated to unknown VG "Server" (run vgscan) pvscan -- inactive PV "/dev/ide/host4/bus0/target1/lun0/part1" is associated to unknown VG "Server" (run vgscan) pvscan -- inactive PV "/dev/ide/host2/bus0/target0/lun0/part1" is associated to unknown VG "Server" (run vgscan) pvscan -- inactive PV "/dev/ide/host2/bus0/target1/lun0/part1" is associated to unknown VG "Server" (run vgscan) pvscan -- inactive PV "/dev/ide/host0/bus1/target0/lun0/part1" is associated to unknown VG "Server" (run vgscan) pvscan -- inactive PV "/dev/ide/host0/bus1/target1/lun0/part1" is associated to unknown VG "Server" (run vgscan) pvscan -- inactive PV "/dev/ide/host0/bus0/target1/lun0/part1" is associated to unknown VG "Server" (run vgscan) pvscan -- inactive PV "/dev/nbd0" is associated to unknown VG "Server" (run vgscan) pvscan -- total: 10 [786.65 GB] / in use: 10 [786.65 GB] / in no VG: 0 [0] ------------------------------------------------- Everything looks good here, but when I run vgscan: ------------------------------------------------- vgscan -- removing "/etc/lvmtab" and "/etc/lvmtab.d" vgscan -- creating empty "/etc/lvmtab" and "/etc/lvmtab.d" vgscan -- reading all physical volumes (this may take a while...) vgscan -- scanning for all active volume group(s) first vgscan -- reading data of volume group "Server" from physical volume(s) vgscan -- "/etc/lvmtab" and "/etc/lvmtab.d" successfully created vgscan -- WARNING: This program does not do a VGDA backup of your volume group vgscan -- ERROR "vg_read_with_pv_and_lv(): current PV" can't get data of volume group "Server" from physical volume(s) ------------------------------------------------- Something is not working.. What should I do to do correct this? //Anders -------- PGP public key: https://tnonline.net/secure/pgp_key.txt _______________________________________________ linux-lvm mailing list linux-lvm@sistina.com http://lists.sistina.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
