SCF Reference Manual for the Storage Subsystem (G06.24+, H06.03+)

Displaying Information About Magnetic Disks
SCF Reference Manual for the Storage Subsystem—529937-007
5-6
Displaying Disk Configuration Information
Explanation of Fields
Disk Type Specific Information
AuditTrailBuffer/
SQLMXBuffer (MB)
shows one of:
•
The audit-trail buffer size in megabytes for a TMF audit-trail
volume. This value is used to improve the performance of
systems using the Remote Duplicate Database Facility.
•
The SQLMXBuffer attribute specifies the buffer size (in
megabytes) for an SQL/MX session in DP2.
AutoRevive shows whether the storage subsystem manager automatically
starts a revive operation on an internal or M8xxx disk that is
inserted into a slot.
AutoSelect (magnetic disks only) shows whether a virtual disk process is
allowed to automatically consider this physical volume when
making file placement decisions.
AutoStart (internal and M8xxx disks only) specifies whether the disk
process is automatically started when the disk is inserted.
CBPoolLen the maximum memory (in 128-KB units) that can be allocated
for open-related data structures on the disk. The memory
available for these structures limits the total number of
concurrent opens allowed on the disk.
FSTCaching shows whether the free space table for a disk is updated in
memory (ON) or on disk (OFF). FSTCaching ON can increase
performance. The FST is always rebuilt from disk when the disk
is started. The system disk always runs with FSTCACHING
ON, regardless of the configured value.
FullCheckpoints shows whether the validity of data written to the disk is being
protected by a full-block checkpoint (applies only to
nondirectory structured files). Options are ENABLED,
DISABLED, or FORCED. For mirrored volumes, see
SerialWrites on page 5-7.
HaltOnError shows whether an internally detected disk-process failure
should force a halt (code %11500) in the primary processor,
backup processor, or both.
LKIDLongPoolLen the memory (in 128-KB units) to be allocated for lock key
space. This space stores keys larger than 16 bytes when
locking records in key-sequenced files.
LKTableSpaceLen the memory (in 128-kilobyte units) to be allocated for lock-
related data structures. The memory available for these
structures limits the total number of file and record locks
allowed on the disk.