Open System Services Management and Operations Guide (G06.29+, H06.07+)

Open System Services Monitor
Open System Services Management and Operations Guide—527191-005
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ALTER FILESET Command
If NORMALIOMODE is not specified, the default behavior is OSSBUFFEREDCP.
POOL filename2
specifies the Guardian filename of the storage-pool file that contains the volume
list to use for file creation for the fileset. The specified file must exist and must
reside on the same Guardian volume and subvolume as the ZOSSFSET and
ZOSSSERV files.
Storage-pool filenames are not case-sensitive.
If the BUFFERED CREATE option is specified and the READONLY TRUE option is
not specified, the value specified for the POOL parameter is ignored and the disk
volume specified for the CATALOG parameter is used as the creation pool.
If the POOL option is omitted, the storage-pool file for the fileset is not changed
unless it is affected by the BUFFERED CREATE option.
READONLY { FALSE | TRUE }
specifies the write permission granted to users of the fileset.
DP2BUFFEREDCP Use disk-process-buffered input/output with
checkpointing. This behavior provides fault tolerance for
single failures, with better performance than
UNBUFFEREDCP. DP2 buffers file data and checkpoints
the file state to its backup process to ensure recovery
from single failures.
OSSBUFFEREDCP Use OSS-buffered input/output with checkpointing. This
behavior provides fault tolerance for single failures, with
better performance than DP2BUFFEREDCP. OSS
filesystem processes and DP2 share responsibility for
buffering file data; OSS provides the buffering whenever
possible. DP2 checkpoints the file state to its backup
process to ensure recovery from single failures.
DP2BUFFERED Use disk-process-buffered input/output without
checkpointing. This behavior provides no fault tolerance,
but better performance than DPBUFFEREDCP.
OSSBUFFERED Use OSS-buffered input/output without checkpointing.
This behavior provides no fault tolerance, but better
performance than OSSBUFFEREDCP.
FALSE Files within the fileset can be created, read, written, and deleted.
TRUE Files within the fileset can only be read.
Using this specification causes a specification of the BUFFERED
CREATE option to be ignored.