3.6.0 Matrix Server 3.6.0 Administration Guide (5697-7081, December 2007)

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Manage Disk Quotas

The PSFS filesystem supports disk quotas, which limit the amount of disk

space on a filesystem that can be used for individual user’s files.

Hard and Soft Filesystem Limits

The PSFS filesystem supports both hard and soft filesystem quotas. A

hard quota specifies the maximum amount of disk space on a particular

filesystem that can be used by files owned by the user. When a file owner

reaches the hard limit, the filesystem will not allow the owner to create

files or to increase the size of an existing file; any attempts to allocate

more space will fail. The file owner will need to remove files or reduce

their size until the disk usage falls below the hard limit.

Soft limits provide a way to warn users when they are about to reach their

hard limit. A soft limit is typically set below the hard limit, and triggers

the warning.

Enable or Disable Quotas

Quotas are enabled or disabled at the filesystem level. When quotas are

enabled, the filesystem performs quota accounting to track the disk use of

each user having an assigned filesystem quota. Quotas can be enabled

only via the PolyServe Management Console and Matrix Server utilities.

Microsoft Windows utilities cannot be used to enable or disable quotas on

a PSFS filesystem.