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What is logical volume in AIX?
Like many UNIX operating systems, AIX uses the concepts of Logical Volume Management (LVM) in its data management architecture. LVM is a generalized approach to managing storage that is not specific to any operating system.
What command shows a summary of available volume groups?
Description. The lsvg command displays information about volume groups.
How do I close a logical volume in AIX?
Select the name of the logical volume you want to remove. Go to the Remove Mount Point field and toggle to your preference. If you select yes, the underlying command will also remove the mount point (directory) where the file system is mounted (if any, and if that directory is empty).
How do I vary off a volume group in AIX?
The varyoffvg command will vary off a volume group and make it unavailable for use. Here is how you can use this command to vary off a VG. After a VG has been varied off, the hdisk will not show as active anymore when using the lspv command.
How to reduce logical volume ( LV ) in Aix?
There is no direct command , you can use file system command “chfs” to reduce the lv indirectly. (if it is mirrorres and we use the above commande, than 1st copy will be used: testlv/1/1…) Changes the name of LV from lv00 to informixlv.
Which is the smallest allocation unit in Aix?
AIX LVM Cheat Sheet Examples What it means PHYSICAL VOLUME (PV) Represents a hard disk (hdisk0). PHYSICAL PARTITION (PP) The smallest allocation unit in the LVM. VOLUME GROUP (VG) A set of one or more PVs which form a si LOGICAL VOLUME (LV) One or more PPs. A file system resides o
Is there a cheat sheet for AIX LVM?
This is a quick and dirty cheat sheet on LVM using AIX, I have highlighted many of the common attributes for each command however this is not an extensive list, make sure you look up the command. Represents a hard disk (hdisk0).
How many LVS are in a VG in Aix?
A set of one or more PVs which form a single storage pool. You can define multiple VGs on each AIX system. One or more PPs. A file system resides on top of an LV. Only one LV is mapped to a file system. A LV can’t span across a VG. Up to 255 LVs in a VG One or more PPs.