Open System Services Management and Operations Guide (G06.30+, H06.08+, J06.03+)

NOTE: HP recommends that the S_NONSTOP extension not be used in new applications. The
S_NONSTOP extension is ignored on nodes running an RVU more recent than G06.26, H06.03,
and all J-series RVUs; the standard O_SYNC feature used with the FTIOMODE attribute provides
better data integrity and improved performance.
Changing the Physical Makeup of a Fileset
You can change the physical makeup of a fileset by:
• “Changing the Fileset Catalog” (page 157)
• “Adding a Disk Volume to a Fileset” (page 157)
• “Removing a Disk Volume From a Storage-Pool File” (page 158)
• “Removing a Disk Volume From a Fileset” (page 158)
• “Moving a Disk Volume to Another Fileset” (page 159)
• “Controlling the Maximum Number of Files” (page 197)
Remember that a fileset can contain files on disk volumes that are not currently in the fileset’s
storage-pool file. When you perform operations that depend upon or potentially change the device
label for a fileset, you need to manage the files as well as the fileset.
Changing the Fileset Catalog
To assign a new fileset catalog to a fileset:
1. Stop the fileset with the SCF STOP FILESET command, as described in “Stopping (Unmounting)
a Fileset” (page 151).
2. Use the SCF INFO FILESET command with the DETAIL option to determine whether the fileset
uses the BUFFERED CREATE option.
If the fileset uses the BUFFERED CREATE option but not the READONLY TRUE option, the
creation pool for the fileset will be the new catalog disk volume of the fileset; existing OSS
files will not be moved to the new volume, but new OSS files will be created on the new disk
volume. Make sure that the new catalog disk volume has adequate space for the fileset.
3. Use the SCF ALTER FILESET command to enter a new name for the catalog disk volume of the
fileset.
This change causes current catalog files to be moved to the specified new disk volume;
previously saved catalog files (with file identifiers of the form PXINnnnn, PXLInnnn, and
PXLOnnnn) are not moved. The subvolume name of the catalog files is not changed.
4. Use the CVT command described in “Managing and Repairing Fileset Catalog Files” (page 170)
to purge the saved catalog files (with file identifiers of the form PXINnnnn PXLInnnn, and
PXLOnnnn) from the old catalog disk volume.
5. Use the SCF START FILESET command to restart the fileset.
To modify the limits in an existing fileset catalog, see “Controlling the Maximum Number of Files”
(page 197).
Adding a Disk Volume to a Fileset
To add a disk volume to a fileset (perhaps to make more storage space available):
1. Use a Guardian text editor to insert the disk volume name in the storage-pool file.
To avoid problems in managing fileset space, do not put the same volume in more than one
storage pool.
Reconfiguring a Fileset 157