About qtrees and Network Appliance Filers

Technote (FAQ)


What is a qtree when using a Network Appliance Filer with IBM® Rational® ClearCase®?


Data on a Network Appliance Filer is organized in volumes. A volume is an independent file system with its own RAID group(s). Every RAID group must contain at least two disks. Each filer must have a root volume to boot (named /vol/vol0).

A qtree is a special subdirectory of the root directory of a volume that gives greater flexibility when storage needs do not demand multiple volumes. Volumes are themselves considered a qtree and can be the target of qtree commands. Therefore, it is recommended to use qtrees from the start.

For more information, refer to the following url, http://www.netapp.com/library/tr/3111.pdf.

Related information

Disable Disk Quotas on NAS
Network Access and Storage Platforms for ClearCase
Network Appliance filer configured for Interop
System Requirements for ClearCase 7.0.x.x

Document information

More support for:

Rational ClearCase
Interop: NAS

Software version:

7.0, 7.0.1, 2003.06.00

Operating system(s):

AIX, HP-UX, IRIX, Linux, Solaris, Windows

Reference #:


Modified date:


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