tech:documentation:procedures:vm:vm_disk_expansion_lvm_xfs
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tech:documentation:procedures:vm:vm_disk_expansion_lvm_xfs [2012/02/14 14:15] – [FOR EXT3/4] kohofer | tech:documentation:procedures:vm:vm_disk_expansion_lvm_xfs [2019/08/21 13:02] – [For swap] kohofer | ||
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Expand the original disk or add a second vdisk from **Infrastructure Client**.\\ | Expand the original disk or add a second vdisk from **Infrastructure Client**.\\ | ||
- | If you want to perform a grow w/o reboot you have to add a second disk | + | <del>If you want to perform a grow w/o reboot you have to add a second disk.</ |
+ | |||
+ | If you are on a kernel newer or equal to 2.6.32 then you can issue the command | ||
+ | |||
+ | < | ||
+ | |||
+ | to get the new size w/o reboot. | ||
+ | |||
+ | |||
+ | In case you cant see the " | ||
+ | |||
+ | echo "- - -" > / | ||
+ | |||
+ | Do this for all host0,1,2 etc. | ||
+ | |||
+ | |||
+ | or | ||
+ | |||
+ | echo " | ||
+ | |||
+ | whereby after scsi_device you need to find the correct scsi device | ||
+ | |||
+ | or | ||
+ | |||
+ | apt-get install scsitools | ||
+ | rescan-scsi-bus | ||
+ | |||
+ | At the end it should list that a new device was found, note down the name/ | ||
+ | |||
+ | echo ' | ||
+ | |||
+ | IMPORTANT: Be sure to replace the 32\:0\:1\:0 with the appropriate disk for your purposes. | ||
**EXPAND ORIGINAL DISK** | **EXPAND ORIGINAL DISK** | ||
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from 8GB to 15GB. The partition type is 8e. | from 8GB to 15GB. The partition type is 8e. | ||
- | cfdisk /dev/sda | + | cfdisk / |
# for example if the new partition is /dev/sda3 | # for example if the new partition is /dev/sda3 | ||
- | # create logical disk /dev/sda3 | + | # create logical disk / |
# make disk visible to linux | # make disk visible to linux | ||
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partprobe | partprobe | ||
pvcreate /dev/sda3 | pvcreate /dev/sda3 | ||
- | |||
now you have to extend the volgroup. use '' | now you have to extend the volgroup. use '' | ||
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===== FOR EXT3/4 ===== | ===== FOR EXT3/4 ===== | ||
- | Check that the filesystem | + | Extend |
- | | + | |
- | + | ||
- | + | ||
+ | lvextend -l +100%FREE / | ||
- | Extend | + | Check that the filesystem |
- | | + | |
Now resize the filesystem | Now resize the filesystem | ||
- | | + | Debian System: |
+ | |||
+ | | ||
+ | |||
+ | Centos/ | ||
+ | resize4fs -p / | ||
===== For swap ===== | ===== For swap ===== | ||
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Check if filesystems are ok, and only then release the snapshot | Check if filesystems are ok, and only then release the snapshot | ||
+ | |||
+ | Fix issue with swap | ||
+ | |||
+ | * swapoff: /dev/dm-1: swapoff failed: Cannot allocate memory | ||
+ | |||
+ | [[https:// | ||
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Hier legen wir jetzt alle unsere logischen Volumes an. Als Namen verwenden wir, etwas fantasielos, | Hier legen wir jetzt alle unsere logischen Volumes an. Als Namen verwenden wir, etwas fantasielos, | ||
- | | + | lvcreate -l +100%FREE -n lvol1 vg01 |
+ | |||
+ | oder wir könne die Größen angeben! (1500M) | ||
+ | |||
+ | lvcreate -L 1500M -n lvol1 vg01 | ||
Filesysteme anlegen | Filesysteme anlegen | ||
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Damit die neuen Filesysteme nun bei jedem Systemstart automatisch gemountet werden, müssen wir sie in die Datei /etc/fstab eintragen (siehe 'man fstab' | Damit die neuen Filesysteme nun bei jedem Systemstart automatisch gemountet werden, müssen wir sie in die Datei /etc/fstab eintragen (siehe 'man fstab' | ||
- | / | + | / |
+ | |||
+ | ===== Links ===== | ||
- | http://www.linuxhaven.de/dlhp/HOWTO-test/DE-LVM-HOWTO-2.html | + | [[http://www.thegeekstuff.com/2010/08/how-to-create-lvm/|How To Create LVM Using vgcreate, lvcreate, and lvextend lvm2 Commands]]\\ |
+ | [[https:// | ||
+ | [[http:// | ||
+ | [[http:// | ||
+ | [[http:// | ||
+ | [[http:// | ||
+ | [[http:// | ||
+ | http:// | ||
+ | http:// |
/data/www/wiki.inf.unibz.it/data/pages/tech/documentation/procedures/vm/vm_disk_expansion_lvm_xfs.txt · Last modified: 2020/10/13 16:46 by kohofer