VERITAS Storage Foundation 4.1 Cross-Platform Data Sharing Administrator's Guide

Chapter 4, File System Considerations

Using the fscdstask Script

The fscdstask script performs several CDS tasks as specified by the use of keywords,

summarized below.

Note The file system migration sections below indicate when each command should be used.

◆ To ensure that there are no file system entities with metadata that exceed the limits for a set of

operating systems, enter:

# fscdstask validate OS_list mount_point

When a file system will be migrated on an ongoing basis between multiple systems, the types of

systems involved in these migrations is maintained in an OS_list file. Knowing what these

operating systems are allows VxFS to determine file system limits that are appropriate to all of

these operating systems. The file system limits that are enforced are file size, user ID, and group

ID. This OS_list is manipulated by several fscdstask keywords.

◆ To add to the list of operating systems between which the file system will be moved on an

ongoing basis, enter:

# fscdstask os add os mount_point

◆ To remove from the list of operating systems between which the file system will be moved on

an ongoing basis, enter:

# fscdstask os remove os mount_point

For both the add and remove keywords, valid values for os are AIX, HP-UX, Linux or SunOS.

◆ To clear the list of operating systems between which the file system will be moved, enter:

# fscdstask os none mount_point

◆ To list the operating systems between which the file system will be moved, enter:

# fscdstask os list mount_point

The limits implied by OS_list are by default ignored. After manipulating OS_list as explained

above, use the following commands to have the file system enforce or ignore these limits.

◆ To enforce established CDS limits on a file system, enter:

# fscdstask limit enforce mount_point

◆ To ignore established CDS limits on a file system, enter:

# fscdstask limit ignore mount_point

Various CDS statuses are maintained on a per-file system basis, including the OS_list, the limits

implied by the OS_list, and whether the limits are being enforced or ignored.

◆ To display the current CDS status of a file system, enter: