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Full Discussion: chfs increase /var limit at 512mb?
Operating Systems AIX chfs increase /var limit at 512mb? Post 302122740 by craigp84 on Thursday 21st of June 2007 07:13:10 AM
Old 06-21-2007
chfs increase /var limit at 512mb?
Is there a limit of 512Mb when doing a "chfs -a size=XXXXX /myfs" ?

I managed to increase /var to 512MB fine, no issues, then i wanted to increase /usr to 2Gb, but when i enter:

Code:
# chfs -a size=2260992 /usr                                                     
chfs: 0506-908 Cannot reduce size of file system.

What's causing this? Why can't i increase /usr?

I've pasted all the stuff i know of that might be relevant below, any other command that might be useful?

Many thanks,

Craig

Code:
lsfs
Name            Nodename   Mount Pt               VFS   Size    Options    Auto Accounting
/dev/hd4        --         /                      jfs   65536   --         yes  no 
/dev/hd1        --         /home                  jfs   65536   --         yes  no 
/dev/hd2        --         /usr                   jfs   2424832 --         yes  no 
/dev/hd9var     --         /var                   jfs   524288  --         yes  no 
/dev/hd3        --         /tmp                   jfs   131072  --         yes  no 
/proc           --         /proc                  procfs --      --         yes  no 
/dev/hd10opt    --         /opt                   jfs   131072  --         yes  no 

# df -k
Filesystem    1024-blocks      Free %Used    Iused %Iused Mounted on
/dev/hd4            32768     18172   45%     1632    10% /
/dev/hd2          1212416     32732   98%    29900    10% /usr
/dev/hd9var        262144    222416   16%      354     1% /var
/dev/hd3            65536     63424    4%       25     1% /tmp
/dev/hd1            32768     31684    4%       18     1% /home
/proc                   -         -    -         -     -  /proc
/dev/hd10opt        65536     14304   79%      981     6% /opt

# lspv                                                                          
hdisk0          0041c0da0006d691                    rootvg          active      
# lspv -l 0041c0da0006d691                                                      
pvid=0041c0da0006d691:                                                          
LV NAME               LPs   PPs   DISTRIBUTION          MOUNT POINT             
hd9var                8     8     00..00..08..00..00    /var                    
hd2                   37    37    00..00..37..00..00    /usr                    
hd4                   1     1     00..00..01..00..00    /                       
hd8                   1     1     00..00..01..00..00    N/A                     
hd6                   16    16    00..16..00..00..00    N/A                     
hd5                   1     1     01..00..00..00..00    N/A                     
hd10opt               2     2     00..00..02..00..00    /opt                    
hd1                   1     1     00..00..01..00..00    /home                   
hd3                   2     2     00..00..02..00..00    /tmp

 

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LEARN ABOUT OPENSOLARIS

mkdevmaps

mkdevmaps(1M)						  System Administration Commands					     mkdevmaps(1M)

NAME

       mkdevmaps - make device_maps entries

SYNOPSIS

       /usr/sbin/mkdevmaps

DESCRIPTION

       The  mkdevmaps  command	writes	to standard out a set of device_maps(4) entries describing the system's frame buffer, audio, and removable
       media devices.

       The mkdevmaps command is used by the init.d(4) scripts to create or update the /etc/security/device_maps file.

       Entries are generated based on the device special files found in /dev. For the different  categories  of  devices,  the	mkdevmaps  command
       checks for the following files under /dev:

	 audio		 /dev/audio, /dev/audioctl, /dev/sound/...
	 tape		 /dev/rst*, /dev/nrst*, /dev/rmt/...
	 floppy 	 /dev/diskette, /dev/fd*, /dev/rdiskette, /dev/rfd*
	 removable disk  /dev/dsk/c0t?d0s?, /dev/rdsk/c0t?d0s?
	 frame buffer	 /dev/fb

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWcsu			   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Obsolete			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       allocate(1), bsmconv(1M), attributes(5)

NOTES

       mkdevmaps might not be supported in a future release of the Solaris operating system.

SunOS 5.11							    8 Oct 2003							     mkdevmaps(1M)
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