SCF Reference Manual for the Storage Subsystem (G06.27+, H06.04+)

Storage Subsystem Commands
SCF Reference Manual for the Storage Subsystem—529937-008
14-20
Disk Attribute Descriptions
MAXLOCKSPERTCB number
is the maximum records and files that a transaction can lock. number is in the
range 5000 through 100000. The default is 5000.
You can increase the value of this attribute while the disk is in the STARTED state.
However, to decrease the value of this attribute, the disk must be in the STOPPED
state. As a result, this attribute value cannot be decreased for the system disk
unless you load the system from a saved system configuration database that
contains a smaller value for this attribute.
MBACKUPDEVICEID { number | ( shelf, bay ) }
(45xx and M8xxx Fibre Channel disks only) is the device ID of the disk accessed
on the mirror backup path to the disk.
This attribute is optional. If specified, it must be the same device ID that you
specified for the MIRRORDEVICEID (page 14-21).
For 45xx disks:
For M8xxx Fibre Channel disks:
If you configure a disk volume for use with an FCSA connected to an ESS, you
cannot specify MBACKUPDEVICEID.
MBACKUPLOCATION ( group, module, slot )
(mirrored 45
xx and mirrored M8xxx disks only) is the location of the adapter that
controls the mirror backup path to the disk.
This attribute is optional if MBACKUPSAC (page 14-21
) is given in name format,
but required if given in number format.
MBACKUPPORTNAME number
specifies the Fibre Channel port name (WWN) used by the backup path to a mirror
disk on the Enterprise Storage System (ESS).
Note. This attribute is not valid for the PROFILE object.
number
Is the unit number of the disk. number is in the range 1
through 7.
shelf Is the FCDM’s shelf number. shelf is in the range 1
through 4.
bay Is the number of the disk. bay is in the range 1 through 14.
Note. This attribute is not valid for the PROFILE object.
Note. This attribute is not valid for the PROFILE object.