Hello, guys, I'm trying to build an raid10 lv for root fs. I used these commands:
lvcreate --type raid10 -m 1 -i 2 -l 24576 pve # created lvol1 lvcreate --type raid10 -m 1 -i 2 -l 8 pve # created lvol2 lvcreate --type raid10 -m 1 -i 2 -l 8 pve # created lvol3 lvcreate --type raid10 -m 1 -i 2 -l 8 pve # created lvol4 lvcreate --type raid10 -m 1 -l 8 pve # created lvol5 Last two commands was runned in rescue mode of openSuSE Leap 15.0, with a slightly newer lvm version (about 2017-09-xx). While first 3 commands was runned in Proxmox VE 5.2, whoes lvm is 2.02.168(2016-11-30). The default LE size was 4MiB, so that I expect lvol1 to be 2*4*24576 MiB, while other 4 are all 2*4*8 MiB. However, I only got 4*24576 MiB and 4*8 MiB partitions. I tried to run `mkfs.ext4` on lvol3 and mount it. `df` shows clearly that lvol3 is a 32MiB volume. Output of `lvdisplay -m`is as follow. Note that all lvol1-5 has a "Mirrored volumes" value of 4. I suppose that this value should be 2 for a 4-PV RAID10 setup.Any suggestions? --- Logical volume --- LV Path /dev/pve/swap LV Name swap VG Name pve LV UUID EcMef2-ld3E-088a-sK1n-Ld8Q-Oies-EhzjUu LV Write Access read/write LV Creation host, time proxmox, 2018-07-18 00:55:20 +0800 LV Status available # open 2 LV Size 8.00 GiB Current LE 2048 Segments 1 Allocation inherit Read ahead sectors auto - currently set to 256 Block device 253:0 --- Segments --- Logical extents 0 to 2047: Type linear Physical volume /dev/sda3 Physical extents 0 to 2047 --- Logical volume --- LV Path /dev/pve/root LV Name root VG Name pve LV UUID AfNvKq-K9Z3-hX3M-06jh-DcbA-1VDo-HZg4w9 LV Write Access read/write LV Creation host, time proxmox, 2018-07-18 00:55:20 +0800 LV Status available # open 1 LV Size 96.00 GiB Current LE 24576 Segments 1 Allocation inherit Read ahead sectors auto - currently set to 256 Block device 253:1 --- Segments --- Logical extents 0 to 24575: Type linear Physical volume /dev/sda3 Physical extents 2048 to 26623 --- Logical volume --- LV Name data VG Name pve LV UUID cs33YQ-RVgl-6TH2-59Dz-9oev-eMtB-cTfoh9 LV Write Access read/write LV Creation host, time proxmox, 2018-07-18 00:55:21 +0800 LV Pool metadata data_tmeta LV Pool data data_tdata LV Status available # open 0 LV Size 372.15 GiB Allocated pool data 0.00% Allocated metadata 0.04% Current LE 95271 Segments 1 Allocation inherit Read ahead sectors auto - currently set to 256 Block device 253:53 --- Segments --- Logical extents 0 to 95270: Type thin-pool Monitoring monitored Chunk size 64.00 KiB Discards passdown Thin count 0 Transaction ID 0 Zero new blocks yes --- Logical volume --- LV Path /dev/pve/root2 LV Name root2 VG Name pve LV UUID lM45gq-h9r2-HarB-wUlL-fnhd-8Wwp-blD0fo LV Write Access read/write LV Creation host, time rescue, 2018-07-18 01:13:18 +0800 LV Status available # open 0 LV Size 3.12 GiB Current LE 800 Segments 1 Allocation inherit Read ahead sectors auto - currently set to 256 Block device 253:2 --- Segments --- Logical extents 0 to 799: Type linear Physical volume /dev/sda3 Physical extents 123841 to 124640 --- Logical volume --- LV Path /dev/pve/boot LV Name boot VG Name pve LV UUID wcAt0f-MgMY-MKRf-uFmW-fs6K-c8rE-EFgmsu LV Write Access read/write LV Creation host, time rescue, 2018-07-18 01:20:33 +0800 LV Status available # open 0 LV Size 512.00 MiB Current LE 128 Mirrored volumes 4 Segments 1 Allocation inherit Read ahead sectors auto - currently set to 256 Block device 253:54 --- Segments --- Logical extents 0 to 127: Type raid1 Monitoring monitored Raid Data LV 0 Logical volume boot_rimage_0 Logical extents 0 to 127 Raid Data LV 1 Logical volume boot_rimage_1 Logical extents 0 to 127 Raid Data LV 2 Logical volume boot_rimage_2 Logical extents 0 to 127 Raid Data LV 3 Logical volume boot_rimage_3 Logical extents 0 to 127 Raid Metadata LV 0 boot_rmeta_0 Raid Metadata LV 1 boot_rmeta_1 Raid Metadata LV 2 boot_rmeta_2 Raid Metadata LV 3 boot_rmeta_3 --- Logical volume --- LV Path /dev/pve/lvol1 LV Name lvol1 VG Name pve LV UUID xh5aWn-vD7f-17S4-erB0-WP1L-PIa3-dWMLw0 LV Write Access read/write LV Creation host, time pve, 2018-07-18 01:42:07 +0800 LV Status available # open 0 LV Size 96.00 GiB Current LE 24576 Mirrored volumes 4 Segments 1 Allocation inherit Read ahead sectors auto - currently set to 1024 Block device 253:55 --- Segments --- Logical extents 0 to 24575: Type raid10 Monitoring monitored Raid Data LV 0 Logical volume lvol1_rimage_0 Logical extents 0 to 24575 Raid Data LV 1 Logical volume lvol1_rimage_1 Logical extents 0 to 24575 Raid Data LV 2 Logical volume lvol1_rimage_2 Logical extents 0 to 24575 Raid Data LV 3 Logical volume lvol1_rimage_3 Logical extents 0 to 24575 Raid Metadata LV 0 lvol1_rmeta_0 Raid Metadata LV 1 lvol1_rmeta_1 Raid Metadata LV 2 lvol1_rmeta_2 Raid Metadata LV 3 lvol1_rmeta_3 --- Logical volume --- LV Path /dev/pve/lvol2 LV Name lvol2 VG Name pve LV UUID sx0AEz-sOG0-KtRb-0df9-7axD-9HmH-e3T0G0 LV Write Access read/write LV Creation host, time pve, 2018-07-18 01:51:04 +0800 LV Status available # open 0 LV Size 32.00 MiB Current LE 8 Mirrored volumes 4 Segments 1 Allocation inherit Read ahead sectors auto - currently set to 1024 Block device 253:56 --- Segments --- Logical extents 0 to 7: Type raid10 Monitoring monitored Raid Data LV 0 Logical volume lvol2_rimage_0 Logical extents 0 to 7 Raid Data LV 1 Logical volume lvol2_rimage_1 Logical extents 0 to 7 Raid Data LV 2 Logical volume lvol2_rimage_2 Logical extents 0 to 7 Raid Data LV 3 Logical volume lvol2_rimage_3 Logical extents 0 to 7 Raid Metadata LV 0 lvol2_rmeta_0 Raid Metadata LV 1 lvol2_rmeta_1 Raid Metadata LV 2 lvol2_rmeta_2 Raid Metadata LV 3 lvol2_rmeta_3 --- Logical volume --- LV Path /dev/pve/lvol3 LV Name lvol3 VG Name pve LV UUID XIsMPd-WYOt-IOOc-F16M-O18D-foI3-RiAR57 LV Write Access read/write LV Creation host, time pve, 2018-07-18 01:56:46 +0800 LV Status available # open 0 LV Size 32.00 MiB Current LE 8 Mirrored volumes 4 Segments 1 Allocation inherit Read ahead sectors auto - currently set to 1024 Block device 253:57 --- Segments --- Logical extents 0 to 7: Type raid10 Monitoring monitored Raid Data LV 0 Logical volume lvol3_rimage_0 Logical extents 0 to 7 Raid Data LV 1 Logical volume lvol3_rimage_1 Logical extents 0 to 7 Raid Data LV 2 Logical volume lvol3_rimage_2 Logical extents 0 to 7 Raid Data LV 3 Logical volume lvol3_rimage_3 Logical extents 0 to 7 Raid Metadata LV 0 lvol3_rmeta_0 Raid Metadata LV 1 lvol3_rmeta_1 Raid Metadata LV 2 lvol3_rmeta_2 Raid Metadata LV 3 lvol3_rmeta_3 --- Logical volume --- LV Path /dev/pve/lvol4 LV Name lvol4 VG Name pve LV UUID 0Iqsan-2Apb-JwUW-DMLU-k4AO-NOrJ-DSQYu9 LV Write Access read/write LV Creation host, time rescue, 2018-07-18 02:01:52 +0800 LV Status available # open 0 LV Size 32.00 MiB Current LE 8 Mirrored volumes 4 Segments 1 Allocation inherit Read ahead sectors auto - currently set to 1024 Block device 253:58 --- Segments --- Logical extents 0 to 7: Type raid10 Monitoring monitored Raid Data LV 0 Logical volume lvol4_rimage_0 Logical extents 0 to 7 Raid Data LV 1 Logical volume lvol4_rimage_1 Logical extents 0 to 7 Raid Data LV 2 Logical volume lvol4_rimage_2 Logical extents 0 to 7 Raid Data LV 3 Logical volume lvol4_rimage_3 Logical extents 0 to 7 Raid Metadata LV 0 lvol4_rmeta_0 Raid Metadata LV 1 lvol4_rmeta_1 Raid Metadata LV 2 lvol4_rmeta_2 Raid Metadata LV 3 lvol4_rmeta_3 --- Logical volume --- LV Path /dev/pve/lvol5 LV Name lvol5 VG Name pve LV UUID jwPC0n-HmOY-NBO6-KIJC-jHen-7sFb-pEMVQb LV Write Access read/write LV Creation host, time rescue, 2018-07-18 02:02:03 +0800 LV Status available # open 0 LV Size 32.00 MiB Current LE 8 Mirrored volumes 4 Segments 1 Allocation inherit Read ahead sectors auto - currently set to 1024 Block device 253:59 --- Segments --- Logical extents 0 to 7: Type raid10 Monitoring monitored Raid Data LV 0 Logical volume lvol5_rimage_0 Logical extents 0 to 7 Raid Data LV 1 Logical volume lvol5_rimage_1 Logical extents 0 to 7 Raid Data LV 2 Logical volume lvol5_rimage_2 Logical extents 0 to 7 Raid Data LV 3 Logical volume lvol5_rimage_3 Logical extents 0 to 7 Raid Metadata LV 0 lvol5_rmeta_0 Raid Metadata LV 1 lvol5_rmeta_1 Raid Metadata LV 2 lvol5_rmeta_2 Raid Metadata LV 3 lvol5_rmeta_3 Regards, Ben Ma _______________________________________________ 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/
