Veritas™ File System 5.0.1 Administrator's Guide

Quotas

This chapter includes the following topics:

■ About quota limits

■ About quota files on Veritas File System

■ About quota commands

■ Using quotas

About quota limits

Veritas File System (VxFS) supports user quotas. The quota system limits the use

of two principal resources of a file system: files and data blocks. For each of these

resources, you can assign quotas to individual users to limit their usage.

You can set the following kinds of limits for each of the two resources:

An absolute limit that cannot be exceeded under any circumstances.hard limit

Must be lower than the hard limit, and can be exceeded, but only for

a limited time. The time limit can be configured on a per-file system

basis only. The VxFS default limit is seven days.

soft limit

Soft limits are typically used when a user must run an application that could

generate large temporary files. In this case, you can allow the user to exceed the

quota limit for a limited time. No allocations are allowed after the expiration of

the time limit. Use the edquota command to set limits.

See “Using quotas” on page 110.

Although file and data block limits can be set individually for each user, the time

limits apply to the file system as a whole. The quota limit information is associated

with user IDs and is stored in a user quota file.

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