AIX

Hello, this is my first post.

I have a user who cannot create a file over 2 GB's in size eventhough the FS is large file enabled and I added a special stanza in /etc/security/limits to allow an unlimited file size for this particular user (user1 - see below).

ibm:/home/root (4062)#cat /etc/security/limits

*
* Sizes are in multiples of 512 byte blocks, CPU time is in seconds
*
* fsize - soft file size in blocks
* core - soft core file size in blocks
* cpu - soft per process CPU time limit in seconds
* data - soft data segment size in blocks
* stack - soft stack segment size in blocks
* rss - soft real memory usage in blocks
* nofiles - soft file descriptor limit
* fsize_hard - hard file size in blocks
* core_hard - hard core file size in blocks
* cpu_hard - hard per process CPU time limit in seconds
* data_hard - hard data segment size in blocks
* stack_hard - hard stack segment size in blocks
* rss_hard - hard real memory usage in blocks
* nofiles_hard - hard file descriptor limit
*
* The following table contains the default hard values if the
* hard values are not explicitly defined:
*
* Attribute Value
* ========== ============
* fsize_hard set to fsize
* cpu_hard set to cpu
* core_hard -1
* data_hard -1
* stack_hard -1
* rss_hard -1
* nofiles_hard -1
*
* NOTE: A value of -1 implies "unlimited"
*

default:
fsize = 4194300
core = 4096
cpu = -1
data = 524288
rss = 131072
nofiles = 2000

root:

daemon:

bin:

sys:

adm:

uucp:

guest:

nobody:

lpd:

user1:
fsize = -1

I'm not sure where else to look to resolve this issue.

Thanks,
Shane

I do not use AIX so I won't be much help. But here are a few thoughts anyways... Can root create a big file in that filesystem? You might have a program /usr/bin/ulimit. If so have the user run /usr/bin/ulimit -a and post the results. Some shell also have a built-in ulimit with no -a, so you really may need a path to the program. On most OS'es, I would expect the user to need to log off and back on to get the values..was that done?

The answers to this stuff may help when a AIX expert comes along.

After I made the changes in the limits file I had the user log off and back in, but got the same results. I'll have to test to see if root can create a file over 2 GB's.

Below is the ulimit -a command as ran by the user.

$ ulimit -a
time(seconds) unlimited
file(blocks) 4194272
data(kbytes) 262144
stack(kbytes) 16384
memory(kbytes) unlimited
coredump(blocks) 4096
nofiles(descriptors) 2000

Thanks,
Shane

The "file(blocks) 4194272" is the problem. Somehow that change you made did not take. There is a lsuser command, you might try that to see what fsize and fsize_hard are at. You may need to set fsize_hard to -1 as well.

What is weird is when I issue the lsuser command on the user, it shows the fsize is set to -1. But when I issue the ulimit -a command as the user, the fsize is 4194272???

Thanks,
Shane

What does lsuser say about fsize_hard?

vi /etc/security/limits
this will change on reboot and become prmanent but to change it on the fly
with out rebooting use the following

chuser rss=<value> <username>
chuser fsize=<value> <username>
chuser data=<value> <username>

After reboot this will revert back to what is in /etc/security/limits


+===========================================
Other problems with file system and sizes may be that you have to create an enhanced o ( or big file enabled filesystem ) but you will have to look at what you have set in fs

http://publibn.boulder.ibm.com/doc_l...D6CE066274MEKI