Also, found a backup of /etc/lvm from first machine. Albert [root@login-0-0 lvm]# ls -R .: archive backup lvm.conf ./archive: vg0_00000.vg vg0_00001.vg vg0_00002.vg vg0_00003.vg vg1_00000.vg vg1_00001.vg ./backup: vg0 vg1 [root@login-0-0 lvm]# cat backup/vg0 # Generated by LVM2: Tue Jan 20 12:42:14 2009 contents = "Text Format Volume Group" version = 1 description = "Created *after* executing 'lvcreate -l 26772 -n lv0 /dev/vg0'" creation_host = "whatever" # Linux whatever 2.6.9-55.0.2.ELsmp #1 SMP Tue Jun 26 14:14:47 EDT 2007 x86_64 creation_time = 1232476934 # Tue Jan 20 12:42:14 2009 vg0 { id = "DlYlrX-oFu7-S3rf-GVH0-5sVp-cuQh-0VGIdy" seqno = 4 status = ["RESIZEABLE", "READ", "WRITE"] extent_size = 262144 # 128 Megabytes max_lv = 0 max_pv = 0 physical_volumes { pv0 { id = "aX4eXc-5ADq-BTl2-sZzY-36kX-A0zx-bDKIQf" device = "/dev/sdc1" # Hint only status = ["ALLOCATABLE"] dev_size = 18446744073709551615 # 8 (null) pe_start = 384 pe_count = 13386 # 1.63403 Terabytes } pv1 { id = "fgu78M-yzS9-OPbV-2aXt-NgJP-A6dA-ZpQCkt" device = "/dev/sdd1" # Hint only status = ["ALLOCATABLE"] dev_size = 18446744073709551615 # 8 (null) pe_start = 384 pe_count = 13386 # 1.63403 Terabytes } } logical_volumes { lv0 { id = "fOvYHo-jj3e-qoZK-nvU8-7yu3-z19U-siuqOP" status = ["READ", "WRITE", "VISIBLE"] segment_count = 2 segment1 { start_extent = 0 extent_count = 13386 # 1.63403 Terabytes type = "striped" stripe_count = 1 # linear stripes = [ "pv0", 0 ] } segment2 { start_extent = 13386 extent_count = 13386 # 1.63403 Terabytes type = "striped" stripe_count = 1 # linear stripes = [ "pv1", 0 ] } } } } [root@login-0-0 lvm]# cat backup/vg1 # Generated by LVM2: Fri Jan 16 11:30:34 2009 contents = "Text Format Volume Group" version = 1 description = "Created *after* executing 'lvcreate -L 4.72T -n lv1 /dev/vg1'" creation_host = "whatever" # Linux whatever 2.6.9-55.0.2.ELsmp #1 SMP Tue Jun 26 14:14:47 EDT 2007 x86_64 creation_time = 1232127034 # Fri Jan 16 11:30:34 2009 vg1 { id = "Qjb9Fq-o5Jy-MH1n-453l-gQqp-iqqN-49sUIS" seqno = 2 status = ["RESIZEABLE", "READ", "WRITE"] extent_size = 262144 # 128 Megabytes max_lv = 0 max_pv = 0 physical_volumes { pv0 { id = "VSTyo3-r8rE-5lym-G6F7-683r-fdZm-Urm5af" device = "/dev/sde1" # Hint only status = ["ALLOCATABLE"] dev_size = 18446744073684372087 # 8 (null) pe_start = 384 pe_count = 16287 # 1.98816 Terabytes } pv1 { id = "eXd2Ee-L55A-bO43-ucXR-GnGM-n4fo-k0vOXP" device = "/dev/sdf1" # Hint only status = ["ALLOCATABLE"] dev_size = 18446744073684372087 # 8 (null) pe_start = 384 pe_count = 16287 # 1.98816 Terabytes } pv2 { id = "4e0pIE-AoXc-2bb5-m6Q9-Eb2z-gmHW-Gu9Owl" device = "/dev/sdg1" # Hint only status = ["ALLOCATABLE"] dev_size = 1603013832 # 764.377 Gigabytes pe_start = 384 pe_count = 6115 # 764.375 Gigabytes } } logical_volumes { lv1 { id = "SNdEg6-nshz-xtzf-ml4R-jraE-ukEZ-eqK6hE" status = ["READ", "WRITE", "VISIBLE"] segment_count = 3 segment1 { start_extent = 0 extent_count = 16287 # 1.98816 Terabytes type = "striped" stripe_count = 1 # linear stripes = [ "pv0", 0 ] } segment2 { start_extent = 16287 extent_count = 16287 # 1.98816 Terabytes type = "striped" stripe_count = 1 # linear stripes = [ "pv1", 0 ] } segment3 { start_extent = 32574 extent_count = 6093 # 761.625 Gigabytes type = "striped" stripe_count = 1 # linear stripes = [ "pv2", 0 ] } } } } Begin forwarded message: > From: Albert Everett <aeeverett@ualr.edu> > Date: January 14, 2011 1:25:24 PM CST > To: linux-lvm@redhat.com > Subject: moving LVMs to another machine > > 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/