z/OS V1R9.0 UNIX System Services Command ... - Christian Grothoff

confighfs
Examples
Usage notes
–v n Set virtual storage max to n (where n is in MB). Requires superuser
authority.
–f n Set fixed storage min to n (where n is in MB). Requires superuser authority.
–q Query your global statistics.
pathname
Query file system statistics for the file system containing each of the path
names specified.
–x size pathname
Extend the specified file system, where size is the amount to be extended
suffixed by the extend unit of M, T, or C (for megabytes, tracks, or
cylinders), and the pathname is a full or simple pathname to a file or
directory in the file system to extend. Requires superuser authority.
–xn size pathname
Extend the specified file system to a new volume using the -x rules.
Requires superuser authority.
The following are internal debug options:
–dn Prints incoming and outgoing pfsctl buffers (where n is 0, 1, or 2).
–t Skips issuing the pfsctl.
Note: On systems running shared file system, this command should only be issued
on the server system (file system owner) for the file system pointed to by the
pathname. Issuing it on client systems results in fields of zeros. See z/OS
UNIX System Services Planning for more information on UNIX in a Sysplex.
1. To set virtual and fixed buffer limits for the HFS file system:
> confighfs –v 128 –f 32
2. To extend the file system for your current directory 100 cylinders:
> confighfs –x 100c .
3. If you need to get statistics for the root file system and the file system mounted
over /tmp, you would do the following:
> confighfs / /tmp .
Note: The . (period) in examples two and three indicates the current directory.
1. If the HFS file system encounters an Out of Space condition during SYNC
processing producing message IGW022S, then the following can result:
a. If confighfs is used to successfully extend the file system (by specifying
confighfs -x size pathname, for example) and the extent was large enough
to accommodate the pages required to complete the SYNC processing,
confighfs reinvokes the SYNC function to complete its update and then
resets the Out of Space error flag. It will no longer be necessary to unmount
and remount the file system to use it further. Once the error flag is reset, all
file system functions will work properly again.
b. If the extend size is not large enough to provide the amount of space
required to complete the SYNC process, confighfs will issue the following
response:
146 z/OS V1R9.0 UNIX System Services Command Reference
Inadequate space added to HFS. At least another nn tracks required.