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

Configuring Magnetic Disks

SCF Reference Manual for the Storage Subsystem—529937-007

6-5

System Disk Configuration

When you configure the system disk, these restrictions exist:

•

You cannot use SCF to configure the system disk. The system generation program

configures the system disk. If the system disk is configured improperly, the system

halts during system load, and you must use the system generation program to

recover.

•

You can specify an alternate system disk and perform a system load from it to

create an alternate system configuration. For more information, see the NonStop

S-Series Hardware Installation Guide.

•

For NonStop S-series systems, enclosure interleaving is not supported for the

system disks. Both halves of the system disk must be in enclosure 1.

•

Beginning with G06.06, on NonStop S-series systems, the system disk can reside

in other slots in group 01 besides 11 and 12. For more information, refer to the

NonStop S-Series Planning and Configuration Guide.

•

These attributes cannot be changed:

The system disk always runs with FSTCACHING ON.

You cannot decrease these attribute values, because the disk must be stopped

in order to alter these attributes:

CBPOOLLEN

MAXLOCKSPEROCB

MAXLOCKSPERTCB

NUMDISKPROCESSES