VERITAS File System 4.1 Administrator's Guide

The VERITAS File System

Quotas

Chapter 130

Quotas

VxFS supports quotas, which allocate per-user quotas and limit the use of two principal

resources: ﬁles and data blocks. You can assign quotas for each of these resources. Each quota

consists of two limits for each resource:

• The hard limit represents an absolute limit on data blocks or ﬁles. A user can never

exceed the hard limit under any circumstances.

• The soft limit is lower than the hard limit and can be exceeded for a limited amount of

time. This allows users to temporarily exceed limits as long as they fall under those limits

before the allotted time expires.

See “Quota Limits” on page 128 for details on using VxFS quotas.

NOTE Commercial database servers such as Oracle Server can issue kernel supported

asynchronous I/O calls (through the asyncdsk or Posix AIO interface) on these

pseudo devices but not on regular ﬁles.