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

This attribute has no effect if DISKTHRESHOLD is -1.
DISKTHRESHOLD number
is the threshold (as a percentage) that, with the DISKINTERVAL attribute, is used by the disk
process to determine when to issue a disk-full EMS message for physical volumes in the storage
pool. For example, if DISKTHRESHOLD is 75, the disk process generates an EMS message
when the physical volume becomes 75 percent full. If you also specify DISKINTERVAL, the disk
process generates an 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 disk volumes in the storage pool
You can add disk volumes (default).ALLOWED
You can add only nonphysical volumes.DISALLOWED
You can add only nonphysical volumes.REQUIRED
MIRRORED { ALLOWED | DISALLOWED | REQUIRED }
specifies whether to allow mirrored volumes in the storage pool
You can add mirrored or nonmirrored volumes (default).ALLOWED
You can add only nonmirrored volumes.DISALLOWED
You can add only mirrored volumes.REQUIRED
220 Storage Subsystem Commands