07-31-2008
Files bigger than the number of bytes that a 32 bit integer can reference are usually called largefiles. Most modern UNIX-es have support for it with either oddly-named non-standard calls like fopen64() or some kind of more modern filesystem.
If you have LARGEFILE support and no disk quota enabled, you can essentially create a file that has size equal to the free space available on the disk. This is a BAD idea in general. sysadmins love to hate giant files, especially small files with giant holes in them....
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All
I am trying to do
ulimit -d unlimited
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Can someone please help me understand, how to change this!
Thanks (1 Reply)
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Hi,
system aix 4.3
when I execute umilit i get result "unlimited".
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Hi,
I need to increase the open files on my server to run a test. Usually what I do is:
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Hi,
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hi,
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Hello, could you help me please?
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LEARN ABOUT SUNOS
quotacheck
quotacheck(1M) System Administration Commands quotacheck(1M)
NAME
quotacheck - ufs file system quota consistency checker
SYNOPSIS
quotacheck [-fp] [-v] filesystem...
quotacheck -a [-fpv]
DESCRIPTION
quotacheck examines each mounted ufs file system, builds a table of current disk usage, and compares this table against the information
stored in the file system's disk quota file. If any inconsistencies are detected, both the quota file and the current system copy of the
incorrect quotas are updated.
filesystem is either a file system mount point or the block device on which the file system resides.
quotacheck expects each file system to be checked to have a quota file named quotas in the root directory. If none is present, quotacheck
will not check the file system.
quotacheck accesses the character special device in calculating the actual disk usage for each user. Thus, the file systems that are
checked should be quiescent while quotacheck is running.
OPTIONS
The following options are supported:
-a Check the file systems which /etc/mnttab indicates are ufs file systems. These file systems must be read-write mounted with disk
quotas enabled, and have an rq entry in the mntopts field in /etc/vfstab.
-f Force check on file systems with logging enabled. Use in combination with the -p option.
-p Check quotas of file systems in parallel. For file systems with logging enabled, no check is performed unless the -f option is
also specified.
-v Indicate the calculated disk quotas for each user on a particular file system. quotacheck normally reports only those quotas modi-
fied.
USAGE
See largefile(5) for the description of the behavior of quotacheck when encountering files greater than or equal to 2 Gbyte ( 2**31 bytes).
FILES
/etc/mnttab Mounted file systems
/etc/vfstab List of default parameters for each file system
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWcsu |
+-----------------------------+-----------------------------+
SEE ALSO
edquota(1M), quota(1M), quotaon(1M), repquota(1M), attributes(5), largefile(5), quotactl(7I), mount_ufs(1M)
SunOS 5.10 31 Jul 1998 quotacheck(1M)