Andere Lösung wäre gewesen die Blockgröße auf der Hostmaschine auf eine Blockgröße von 8 MB zu setzen somit hätten wir der VM bis zu 2TB zuweisen können.
Anzeigen welche Volumegroup sind momentan definiert:
[root@localhost]# vgdisplay
--- Volume group ---
VG Name VolGroup00
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 19.88 GB
PE Size 32.00 MB
Total PE 636
Alloc PE / Size 636 / 19.88 GB
Free PE / Size 0 / 0
VG UUID ft0v1w-AyMt-zTE1-1UJB-NCnc-2xQ0-57e6RC
Erstellen von Disks bzw. Partitionen für die Nutzung durch LVM;
[root@localhost]# pvcreate /dev/sdb
Physical volume "/dev/sdb" successfully created
[root@localhost]# pvcreate /dev/sdc
Physical volume "/dev/sdc" successfully created
[root@localhost]# pvcreate /dev/sdd
Physical volume "/dev/sdd" successfully created
Erstellen einer Volumegroup:
[root@localhost]# vgcreate nfsvg01 /dev/sdb /dev/sdc /dev/sdd
Volume group "nfsvg01" successfully created
Erstellen eines logical Volumes:
[root@localhost]# lvcreate -n nfslv01 -L 1200G nfsvg01
Logical volume "nfslv01" created
mit Filesystem formatieren:
[root@localhost]# mkfs -t ext3 /dev/nfsvg01/nfslv01
mke2fs 1.39 (29-May-2006)
Filesystem label=
OS type: Linux
Block size=4096 (log=2)
Fragment size=4096 (log=2)
157286400 inodes, 314572800 blocks
15728640 blocks (5.00%) reserved for the super user
First data block=0
Maximum filesystem blocks=0
9600 block groups
32768 blocks per group, 32768 fragments per group
16384 inodes per group
Superblock backups stored on blocks:
32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208,
4096000, 7962624, 11239424, 20480000, 23887872, 71663616, 78675968,
102400000, 214990848
Writing inode tables: done
Creating journal (32768 blocks): done
Writing superblocks and filesystem accounting information: done
This filesystem will be automatically checked every 27 mounts or
180 days, whichever comes first. Use tune2fs -c or -i to override.
Danach konnte der Pfad der Datei in die /etc/exports hinzugefügt werden.
Zum Schluss muss noch der Mountpoint definiert werden:
[root@localhost]# mount -t ext3 /dev/nfsvg01/nfslv01 /mnt/nfsvg01/nfslv01/
pvcreate - initialize a disk or partition for use by LVM
SYNOPSIS
pvcreate [-d|--debug] [-f[f]|--force [--force]] [-y|--yes] [-h|--help] [-v|--verbose] [-V|--version]PhysicalVolume...]
DESCRIPTION
pvcreate initializes for later use by the Logical Volume Manager (LVM). Each can be a disk partition, whole disk, meta device, or loopback file. For DOS disk partitions, the partition id must be set to 0x8e using fdisk(8), cfdisk(8), or a equivalent. For whole disk devices only the partition table must be erased, which will effectively destroy all data on that disk. This can be done by zeroing the first sector with:
dd if=/dev/zero of= bs=512 count=1
Continue with vgcreate(8) to create a new volume group on, or vgextend(8) to add to an existing volume group.
OPTIONS
- -d, --debug
- Enables additional debugging output (if compiled with DEBUG).
- -f, --force
- Force the creation without any confirmation. You can not recreate (reinitialize) a physical volume belonging to an existing volume group. In an emergency you can override this behaviour with -ff. In no case case can you initialize an active physical volume with this command.
- -s, --size
- Overrides the size of the physical volume which is normally retrieved. Useful in rare case where this value is wrong. More useful to fake large physical volumes of up to 2 Terabyes - 1 Kilobyte on smaller devices for testing purposes only where no real access to data in created logical volumes is needed. If you wish to create the supported maximum, use "pvcreate -s 2147483647k PhysicalVolume [PhysicalVolume ...]". All other LVM tools will use this size with the exception of lvmdiskscan(8)
- -y, --yes
- Answer yes to all questions.
- -h, --help
- Print a usage message on standard output and exit successfully.
- -v, --verbose
- Gives verbose runtime information about pvcreate's activities.
- -V, --version
- Print the version number on standard output and exit successfully.
Example
Initialize partition #4 on the third SCSI disk and the entire fifth SCSI disk for later use by LVM:pvcreate /dev/sdc4 /dev/sde
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