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Operating Systems AIX Moving free space from one LV to another LV Post 302462974 by shockneck on Friday 15th of October 2010 11:47:57 AM
Old 10-15-2010
Quote:
Originally Posted by NycUnxer
i[...]the newly created test directories have run out of space and the old production directories have alot of free space. Can we transfer that free space over.[...]
In case you use jfs2 filesystems in your LVs you could simply shrink the less used filesystems with the 'chfs' command. By reducing jfs FS size you free PP which in turn can then be used for increasing the other filesystems (again with the 'chfs' command).
Sometimes fragmentation gets into your way when shrinking. In that case try the 'defrags' command. And start by shrinking in small portions. I.e. if your PP size is 64 MB start by reducing the less used FS by 64 MB. If it works, try bigger chunks. Read the 'chfs' manpage for details.

So much to jfs2. With jfs filesystems that shrinking on the fly would not be possible. In that case you could backup the filesystems by mksysb and use the shrinkfs option at recovery. Or you backup, recreate the FS and restore manually.
If you are using raw devices you could cut off PP but you would need to know for sure that there was no data in the PP being cut of. That often turns out to be a problem so again you would probably fall back to manually backup the data, recreate the raw device and then recover.
 

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MKDIC(1)						      General Commands Manual							  MKDIC(1)

NAME
mkdic - Tool for creating a user dictionary SYNOPSIS
mkdic [{-cs|-cannaserver} canna-server] [-s] [- | -l local-file] remote-dic DESCRIPTION
mkdic creates user dictionary named remote-dic in the user dictionary directory of the remote host, on which cannaserver(1M) is in opera- tion. Dictionary file name remote-dic is assigned to this file at this time. If the - and -l option isn't specified, mkdic creates an empty dictionary. If the - option is specified, the standard input will be used as the dictionary file. If the -l option is specified, local-file will be used as the dictionary file. If the user dictionary directory does not exist, it will be created. Dictionary directory file -- dics.dir -- is rewritten automatically after the registering. The registered dictionary can thus be used by writing the dictionary name into the customize file. OPTIONS
-cs canna-server (or -cannaserver canna-server) Specifies the server machine that contains the dictionary to be created. -s Indicates that the dictionary to be created is an adjunct dictionary. If this option is omitted, the dictionary will be cre- ated as an independent-word one. -l local-file Registers the input data from local-file. - The standard input will be used as the dictionary file. EXAMPLES(1) If you want to creat an empty dictionary file: % mkdic test(2) If you want to register the input data from the standard input: % mkdic test - Registers the input data from the standard input, in the user dictionary directory under dictionary name ``test''. The following line is then added to dictionary directory file -- dics.dir -- : user1.t(.mwd) -test-(3) If the dictionary file is specified: % mkdic test -l test1.t Registers independent-word dictionary file ``test1.t'' in the remote host's user dictionary directory under dictionary name ``test''. The following line is then added to dics.dir: user1.t(.mvd) -test- user1.t is a dictionary file name generated automatically by the system. SEE ALSO
catdic(1), cannaserver(1M), lsdic(1) MKDIC(1)
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