Текущее состояние:
# df -h / Filesystem Size Used Avail Use% Mounted on /dev/mapper/vmt--ubuntu--base-root 26G 1.9G 23G 8% /
Или с помощью lsblk:
# lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT sr0 11:0 1 1024M 0 rom sda 8:0 0 30G 0 disk ├─sda1 8:1 0 243M 0 part /boot ├─sda2 8:2 0 1K 0 part └─sda5 8:5 0 29.8G 0 part ├─vmt--ubuntu--base-root (dm-0) 252:0 0 25.8G 0 lvm / └─vmt--ubuntu--base-swap_1 (dm-1) 252:1 0 4G 0 lvm [SWAP]
Добавляем диск:
Находим к какому кнтроллеру подключен диск:
# grep mpt /sys/class/scsi_host/host?/proc_name /sys/class/scsi_host/host2/proc_name:mptspi
Что бы система «увидела» диск без перезагрузки — вписываем:
# echo "- - -" > /sys/class/scsi_host/host2/scan
Подробнее — тут>>>.
Проверяем:
# lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT sr0 11:0 1 1024M 0 rom sda 8:0 0 30G 0 disk ├─sda1 8:1 0 243M 0 part /boot ├─sda2 8:2 0 1K 0 part └─sda5 8:5 0 29.8G 0 part ├─vmt--ubuntu--base-root (dm-0) 252:0 0 25.8G 0 lvm / └─vmt--ubuntu--base-swap_1 (dm-1) 252:1 0 4G 0 lvm [SWAP] sdb 8:16 0 40G 0 disk
sdb обнаружился.
Добавляем файловую систему на sdb:
# echo ';' | sfdisk /dev/sdb Checking that no-one is using this disk right now ... OK Disk /dev/sdb: 5221 cylinders, 255 heads, 63 sectors/track sfdisk: ERROR: sector 0 does not have an MSDOS signature /dev/sdb: unrecognised partition table type Old situation: No partitions found New situation: Units = cylinders of 8225280 bytes, blocks of 1024 bytes, counting from 0 Device Boot Start End #cyls #blocks Id System /dev/sdb1 0+ 5220 5221- 41937682 83 Linux /dev/sdb2 0 - 0 0 0 Empty /dev/sdb3 0 - 0 0 0 Empty /dev/sdb4 0 - 0 0 0 Empty Warning: no primary partition is marked bootable (active) This does not matter for LILO, but the DOS MBR will not boot this disk. Successfully wrote the new partition table Re-reading the partition table ... If you created or changed a DOS partition, /dev/foo7, say, then use dd(1) to zero the first 512 bytes: dd if=/dev/zero of=/dev/foo7 bs=512 count=1 (See fdisk(8).)
Подробнее — тут>>>.
Проверяем:
# lsblk /dev/sdb NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT sdb 8:16 0 40G 0 disk └─sdb1 8:17 0 40G 0 part
# fdisk -l /dev/sdb Disk /dev/sdb: 42.9 GB, 42949672960 bytes 255 heads, 63 sectors/track, 5221 cylinders, total 83886080 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00000000 Device Boot Start End Blocks Id System /dev/sdb1 1 83875364 41937682 83 Linux
Проверяем текущее состояние VolumeGroup:
# vgdisplay --- Volume group --- VG Name vmt-ubuntu-base 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 29.76 GiB PE Size 4.00 MiB Total PE 7618 Alloc PE / Size 7618 / 29.76 GiB Free PE / Size 0 / 0 VG UUID XrLTro-dew3-1tUO-koOw-XTyf-Ki3h-HwMNGp
Создаём новый PhysicalVolume на разделе /dev/sdb1:
# pvcreate /dev/sdb1 Physical volume "/dev/sdb1" successfully created
Проверяем:
# pvdisplay -s Device "/dev/sda5" has a capacity of 0 Device "/dev/sdb1" has a capacity of 39.99 GiB
Увиличиваем группу томов vmt-ubuntu-base:
# vgextend vmt-ubuntu-base /dev/sdb1 Volume group "vmt-ubuntu-base" successfully extended
Проверяем:
# vgdisplay --- Volume group --- VG Name vmt-ubuntu-base System ID Format lvm2 Metadata Areas 2 Metadata Sequence No 4 VG Access read/write VG Status resizable MAX LV 0 Cur LV 2 Open LV 2 Max PV 0 Cur PV 2 Act PV 2 VG Size 69.75 GiB PE Size 4.00 MiB Total PE 17856 Alloc PE / Size 7618 / 29.76 GiB Free PE / Size 10238 / 39.99 GiB VG UUID XrLTro-dew3-1tUO-koOw-XTyf-Ki3h-HwMNGp
Проверяем ткущее состояние LogicalVolume:
# lvdisplay /dev/vmt-ubuntu-base/root --- Logical volume --- LV Name /dev/vmt-ubuntu-base/root VG Name vmt-ubuntu-base LV UUID toI6Qv-ANaY-dDlp-4xXu-3fTy-In2j-9uRzNc LV Write Access read/write LV Status available # open 1 LV Size 25.76 GiB Current LE 6594 Segments 1 Allocation inherit Read ahead sectors auto - currently set to 256 Block device 252:0
Текущий размер — 26 гигабайт:
# df -h / Filesystem Size Used Avail Use% Mounted on /dev/mapper/vmt--ubuntu--base-root 26G 1.9G 23G 8% /
Увеличиваем размер LogicalVolume до 100% VolumeGroup:
# lvextend -l +100%FREE -rn /dev/vmt-ubuntu-base/root Extending logical volume root to 65.75 GiB Logical volume root successfully resized resize2fs 1.42 (29-Nov-2011) Filesystem at /dev/dm-0 is mounted on /; on-line resizing required old_desc_blocks = 2, new_desc_blocks = 5 Performing an on-line resize of /dev/dm-0 to 17235968 (4k) blocks. The filesystem on /dev/dm-0 is now 17235968 blocks long.
Опции:
-n,--nofsck— не выполнятьfsckперед увеличением файловой системы;-r,--resizefs— изменить размер файловой системы вместе увеличениемLogicalVolume, используяfsadm.
Подробнее — тут>>>.
Проверяем:
# df -h / Filesystem Size Used Avail Use% Mounted on /dev/mapper/vmt--ubuntu--base-root 66G 1.9G 60G 3% /
И сам LogicalVolume:
# lvdisplay /dev/vmt-ubuntu-base/root --- Logical volume --- LV Name /dev/vmt-ubuntu-base/root VG Name vmt-ubuntu-base LV UUID toI6Qv-ANaY-dDlp-4xXu-3fTy-In2j-9uRzNc LV Write Access read/write LV Status available # open 1 LV Size 65.75 GiB Current LE 16832 Segments 2 Allocation inherit Read ahead sectors auto - currently set to 256 Block device 252:0
Готово.
Ссылки по теме
How to resize LVM logical volumes with ext4 as filesystem
automated disk partitioning with sfdisk
Linux: LVM – Linux Volume Manager – подключение нового жесткого диска
