This is my first time trying to do this, so please forgive me if what I'm asking is trivial. I'm anxious not to loose data. I have moved a Dell MD3000 with an MD1000 attached from one CentOS 4.5 x86_64 machine to another. I've installed Dell's drivers on the second machine and I see output below. /dev/sdb and sdc are on the MD3000; /dev/sdd, sde and sdf are on the MD1000. Filesystem on both is ext3, and I only used LVM to concatenate <2TB volumes because the MD3000 firmware required it at the time. I did not actively deactivate any volume groups or logical volumes before I made this move. Q: What are my next steps after lvscan to bring the two logical volumes back online? OS, etc are all on /dev/sda; the logical volumes just have extra stuff. Q: Am I right to assume that once lv0 and lv1 show as active, all I need to do is mount them somewhere, and that the filesystems they contain should be intact? I had no disk or controller failures that I know of. Albert [root@login-0-0 ~]# fdisk -l Disk /dev/sda: 749.6 GB, 749606010880 bytes 255 heads, 63 sectors/track, 91134 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id System /dev/sda1 * 1 3060 24579418+ 83 Linux /dev/sda2 3061 6120 24579450 83 Linux /dev/sda3 6121 8160 16386300 82 Linux swap /dev/sda4 8161 91134 666488655 5 Extended /dev/sda5 8161 91134 666488623+ 83 Linux Disk /dev/sdb: 1796.7 GB, 1796776919040 bytes 255 heads, 63 sectors/track, 218445 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id System /dev/sdb1 1 218445 1754659431 8e Linux LVM Disk /dev/sdc: 1796.7 GB, 1796776919040 bytes 255 heads, 63 sectors/track, 218445 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id System /dev/sdc1 1 218445 1754659431 8e Linux LVM Disk /dev/sdd: 2186.1 GB, 2186136256512 bytes 255 heads, 63 sectors/track, 265782 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id System /dev/sdd1 1 265782 2134893883+ 8e Linux LVM Disk /dev/sde: 2186.1 GB, 2186136256512 bytes 255 heads, 63 sectors/track, 265782 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id System /dev/sde1 1 265782 2134893883+ 8e Linux LVM Disk /dev/sdf: 820.7 GB, 820745076736 bytes 255 heads, 63 sectors/track, 99783 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id System /dev/sdf1 1 99783 801506916 8e Linux LVM [root@login-0-0 ~]# pvscan PV /dev/sdd1 VG vg1 lvm2 [1.99 TB / 0 free] PV /dev/sde1 VG vg1 lvm2 [1.99 TB / 0 free] PV /dev/sdf1 VG vg1 lvm2 [764.38 GB / 2.75 GB free] PV /dev/sdb1 VG vg0 lvm2 [1.63 TB / 0 free] PV /dev/sdc1 VG vg0 lvm2 [1.63 TB / 0 free] Total: 5 [7.99 TB] / in use: 5 [7.99 TB] / in no VG: 0 [0 ] [root@login-0-0 ~]# vgscan Reading all physical volumes. This may take a while... Found volume group "vg1" using metadata type lvm2 Found volume group "vg0" using metadata type lvm2 [root@login-0-0 ~]# lvscan inactive '/dev/vg1/lv1' [4.72 TB] inherit inactive '/dev/vg0/lv0' [3.27 TB] inherit [root@login-0-0 ~]# pvdisplay --- Physical volume --- PV Name /dev/sdd1 VG Name vg1 PV Size 8192.00 EB / not usable 8192.00 EB Allocatable yes (but full) PE Size (KByte) 131072 Total PE 16287 Free PE 0 Allocated PE 16287 PV UUID VSTyo3-r8rE-5lym-G6F7-683r-fdZm-Urm5af --- Physical volume --- PV Name /dev/sde1 VG Name vg1 PV Size 8192.00 EB / not usable 8192.00 EB Allocatable yes (but full) PE Size (KByte) 131072 Total PE 16287 Free PE 0 Allocated PE 16287 PV UUID eXd2Ee-L55A-bO43-ucXR-GnGM-n4fo-k0vOXP --- Physical volume --- PV Name /dev/sdf1 VG Name vg1 PV Size 764.38 GB / not usable 1.60 MB Allocatable yes PE Size (KByte) 131072 Total PE 6115 Free PE 22 Allocated PE 6093 PV UUID 4e0pIE-AoXc-2bb5-m6Q9-Eb2z-gmHW-Gu9Owl --- Physical volume --- PV Name /dev/sdb1 VG Name vg0 PV Size 8192.00 EB / not usable 8192.00 EB Allocatable yes (but full) PE Size (KByte) 131072 Total PE 13386 Free PE 0 Allocated PE 13386 PV UUID aX4eXc-5ADq-BTl2-sZzY-36kX-A0zx-bDKIQf --- Physical volume --- PV Name /dev/sdc1 VG Name vg0 PV Size 8192.00 EB / not usable 8192.00 EB Allocatable yes (but full) PE Size (KByte) 131072 Total PE 13386 Free PE 0 Allocated PE 13386 PV UUID fgu78M-yzS9-OPbV-2aXt-NgJP-A6dA-ZpQCkt [root@login-0-0 ~]# vgdisplay --- Volume group --- VG Name vg1 System ID Format lvm2 Metadata Areas 3 Metadata Sequence No 2 VG Access read/write VG Status resizable MAX LV 0 Cur LV 1 Open LV 0 Max PV 0 Cur PV 3 Act PV 3 VG Size 4.72 TB PE Size 128.00 MB Total PE 38689 Alloc PE / Size 38667 / 4.72 TB Free PE / Size 22 / 2.75 GB VG UUID Qjb9Fq-o5Jy-MH1n-453l-gQqp-iqqN-49sUIS --- Volume group --- VG Name vg0 System ID Format lvm2 Metadata Areas 2 Metadata Sequence No 4 VG Access read/write VG Status resizable MAX LV 0 Cur LV 1 Open LV 0 Max PV 0 Cur PV 2 Act PV 2 VG Size 3.27 TB PE Size 128.00 MB Total PE 26772 Alloc PE / Size 26772 / 3.27 TB Free PE / Size 0 / 0 VG UUID DlYlrX-oFu7-S3rf-GVH0-5sVp-cuQh-0VGIdy [root@login-0-0 ~]# lvdisplay --- Logical volume --- LV Name /dev/vg1/lv1 VG Name vg1 LV UUID SNdEg6-nshz-xtzf-ml4R-jraE-ukEZ-eqK6hE LV Write Access read/write LV Status NOT available LV Size 4.72 TB Current LE 38667 Segments 3 Allocation inherit Read ahead sectors 0 --- Logical volume --- LV Name /dev/vg0/lv0 VG Name vg0 LV UUID fOvYHo-jj3e-qoZK-nvU8-7yu3-z19U-siuqOP LV Write Access read/write LV Status NOT available LV Size 3.27 TB Current LE 26772 Segments 2 Allocation inherit Read ahead sectors 0 _______________________________________________ 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/
