SCF Reference Manual for the Storage Subsystem (G06.28+, H06.05+, J06.03+)

• When adding a new disk on disk partitions, the writecache setting of the new disk must
match the writecache setting of the existing disk partitions.
• Altering a writecache setting of a disk partition sets the writecache setting of all the disk
partitions that are configured on the same physical disk. Changes to the other disk partitions
set the writecache setting of all their mirror disks.
To use this attribute, see “Write Caching” (page 94).
WRITEVERIFY { ON | OFF }
specifies whether the disk process should enable persistent write verify.
NOTE: This attribute is not valid for the ADD DISK command and the PROFILE object.
The SAC performs additional verification to ensure that data is written error-free.ON
No additional verification is performed (default).OFF
When you set WRITEVERIFY ON, you give up some system performance for a higher level of
data integrity. WRITEVERIFY ON is sometimes set automatically by the disk process if it detects
a specific error situation that needs the extra protection.
ADD MON Command
The ADD MON command adds the $ZSMS master Storage Management Foundation (SMF) process
to the system configuration database. The syntax is:
ADD [ / OUT file-spec / ] MON $ZSMS , SENDTO STORAGE
[ , attribute-spec ]...
Wild-card characters are not supported.
MON $ZSMS
is the SMF master process.
SENDTO STORAGE
directs the command to the storage subsystem. This attribute is required unless you specified
SENDTO STORAGE in a previous ASSUME command.
attribute-spec
is one or more “ADD MON Attributes”.
ADD MON Attributes
[ , BACKUPCPU number ]
[ , CATALOGLOCATION $vol ]
[ , HIGHPIN { ON | OFF } ]
[ , MODE { NOISY | QUIET } ]
[ , PRIMARYCPU number ]
[ , PROGRAM [[$vol.]subvol.]fileid ]
BACKUPCPU number
is the processor in which the backup IOP starts. The default is BACKUPCPU 1.
CATALOGLOCATION $vol
is the physical volume where the catalog subvolume (ZSMSCAT0) for the SMF master process
is located.
$vol must be in the STARTED state and enabled in TMF. If CATALOGLOCATION is not
specified, $vol is set to $SYSTEM.
ADD Command 215