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About qtrees and Network Appliance Filers


Technote (FAQ)


Question

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

Answer

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

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Document information

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 #:
1125802


Modified date:
2008-08-07

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