Guardian User's Guide

Guardian User’s Guide—425266-001
9-1
9
Performing Routine Disk Operations
This section describes how to perform routine operations related to the magnetic disks
on your system:
Using the Subsystem Control Facility (SCF)
You perform many operations on disks and other peripheral devices through the
Subsystem Control Facility (SCF). See the SCF Reference Manual for G-Series
Releases for complete syntax rules, considerations, and examples for all SCF
commands, along with SCF error messages.
Topic Page
Using the Subsystem Control Facility (SCF) 9-1
Checking Disk Status 9-5
Bringing Up a Disk or Path 9-6
Taking Down a Disk or Path 9-7
Altering the Current Path to a Dual-Ported Disk 9-9
Removing Half of a Mirrored Disk 9-9
Bringing Up the Down Half of a Mirrored Disk 9-11
Finding and Sparing Bad Tracks and Sectors 9-12
Managing Disk Space Usage 9-14
Monitoring and Altering Swap Files 9-23
Solving Common Disk Problems 9-28
Table 9-1. SCF Command Summary (page 1 of 4)
Command Function
ABORT (Does not support TAPE device in G-series releases) Stops the operation
of an object without regard to the current state of its operation.
ACTIVATE Returns a suspended object to the STARTED state.
ADD Defines an object to a subsystem.
AGGREGATE Displays the number of objects in the STARTED state and the
STOPPED state, together with the total number of objects in a state other
than STARTED or STOPPED.
ALIAS Defines a command or text abbreviation.
ALLOCATE Allocates (reserves) file space for one or more objects. Each object must
be an explicitly (using the ADD command) or implicitly defined object.