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

Storage Subsystem Commands
SCF Reference Manual for the Storage Subsystem—529937-008
14-56
ALTER POOL Command
EMS message when the physical volume becomes 75, 80, 85, 90, and 95 percent
full.
number is either -1 (the default, no disk-full EMS messages are issued) or in the
range 1 through 100 percent.
EXTENTINTERVAL number
is the number of extents that, with the EXTENTTHRESHOLD attribute, is used by
the disk process to determine when to issue an extents-left EMS message for
physical volumes in the storage pool. For example, if EXTENTTHRESHOLD is 6
and EXTENTINTERVAL is 2, the disk process issues an EMS message when
there are 6, 4, 2, and 0 extents left to be allocated for a file.
number is either -1 (the default, no extents-left EMS messages are issued) or in
the range 1 through 978.
This attribute has no effect if EXTENTTHRESHOLD is -1.
EXTENTTHRESHOLD number
is the number of extents that, with the EXTENTINTERVAL attribute, is used by the
disk process to determine when to issue an extents-left EMS message for physical
volumes in the storage pool. For example, if EXTENTTHRESHOLD is 6, the disk
process issues an EMS message when only six extents remain to be allocated to a
file. If you also specify EXTENTINTERVAL, the disk process issues an EMS
message when there are 4, 2, and 0 extents left to be allocated for a file.
number is either -1 (the default, no extents-left EMS messages are issued) or in
the range 1 through 978.
HIGHPIN { ON | OFF }
specifies whether the IOP can run at a high PIN (ON, the default) or only at a low
PIN (OFF).
MAGNETIC { ALLOWED | DISALLOWED | REQUIRED }
specifies whether to allow magnetic volumes in the storage pool.
MIRRORED { ALLOWED | DISALLOWED | REQUIRED }
specifies whether to allow mirrored volumes in the storage pool.
ALLOWED You can add magnetic or nonmagnetic volumes (default).
DISALLOWED You can add only nonmagnetic volumes.
REQUIRED
You can add only nonmagnetic volumes.
ALLOWED You can add mirrored or nonmirrored volumes (default).
DISALLOWED You can add only nonmirrored volumes.
REQUIRED You can add only mirrored volumes.