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Full Discussion: LVM Memory Usage
Operating Systems Linux Red Hat LVM Memory Usage Post 302758713 by sixstrings on Sunday 20th of January 2013 02:10:15 PM
Old 01-20-2013
Also, the file systems leave a small bit of space "unavailable" on purpose. This allows for the root user to access and perform functions in a file system that shows 100% full and not have a full disk make the system totally unusable. You don't want to remove that.
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repquota(8)						      System Manager's Manual						       repquota(8)

NAME
repquota - summarizes file system quotas SYNOPSIS
/usr/sbin/repquota [-guv] file_spec ... /usr/sbin/repquota -a [-guv] PARAMETERS
Specifies one or more file systems. Specify any file system by entering its full path name or its mount point. The full path name is the name entered in the file_spec field of the file system's entry in the /etc/fstab file. The mount point is the name entered in the mnt_point field of the file system's entry in the /etc/fstab file. For UFS file systems, you can alternatively enter the name of a block device special file. For example: /dev/disk/dsk3c. For AdvFS filesets, you can alternatively enter the name of a file domain, a pound sign (#), and the name of the fileset. For exam- ple: root_domain#root. FLAGS
Prints quotas for all the file systems listed in /etc/fstab. Prints group quotas only. Prints user quotas only. Prints a header line before the information for each file system. DESCRIPTION
The repquota command prints a summary of the disk usage and quotas for the specified file systems. The command provides a snapshot of the quota statistics, which may be inaccurate if there is current activity in the file system. To ensure that the satistics are accurate, run the command when there is no file system activity. To be included in the summary, each file system must have the userquota and groupquota entries in the /etc/fstab file . The following is an example of an entry in the etc/fstab file for the usr fileset: advfs_dmn#usr /usr advfs rw,userquota,groupquota By default, both user and group quota are displayed (if they exist). For each user or group, the current number of files and amount of space (in kilobytes) is printed, as well as quota limits established with the edquota command. repquota must be run by a user with superuser authority. NOTES
Disk quotas are displayed as 1 kilobyte blocks. The term file system represents either a UFS file system or and AdvFS fileset. RESTRICTIONS
You must be the root user to use the repquota command. FILES
Specifies the command path Contains user quotas for file systems Contains group quotas for file systems Contains fileset names and loca- tions RELATED INFORMATION
Commands: edquota(8), fsck(8), quota(1), quotacheck(8), quotaon(8). Functions: quotactl(2). Files: fstab(4). delim off repquota(8)
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