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Start disk, Start primary path, Start volume – HP Integrity NonStop J-Series User Manual

Page 116: Stop backup path, Stop disk, Stop primary path, Stop volume, Switch process pair, Switch to backup path, Switch to primary path

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This action fails if both paths to this disk are down and the mirrored disk is Up. For more information,
see

Start Disk

.

Start Disk

Use this action to start all paths to the disk drive only when:

The disk paths are in a Down state. (Hard Down states require a reset action, either

Reset

Disk

,

Reset Primary Path

, or

Reset Backup Path

as appropriate.)

Its mirrored disk is not currently Up. The Start Disk action is designed to fail if the mirrored
disk is already in an Up state because the mirror and primary disk volumes can have different
data and require a revive operation. To revive and bring up the disks properly, use the OSM

Start Volume

action or SCF START DISK command.

When the action completes successfully, all paths to the disk are in the Started state.

Start Primary Path

Starts the primary path to this disk drive. When the Start action completes, the primary path is in
the Started state.

This action fails if both paths to this disk are down and the mirrored disk is Up. For more information,
see

Start Disk

.

Start Volume

Starts all paths for both the primary and mirror drives of this volume unless they are in a Hard
Down state. Disk paths in a Hard Down state require a reset action first (either

Reset Disk

,

Reset

Primary Path

, or

Reset Backup Path

as appropriate).

Stop Backup Path

Terminates the backup path to the disk. When the Stop action finishes, the path is in a Down state.
If the disk drive is currently in use, a dialog box warns you and asks whether or not you want to
continue with the action.

Stop Disk

Terminates all paths for this disk drive. When the Stop action finishes, the paths are in a Down
state. If the disk drive is currently in use, a dialog box warns you and asks whether or not you
want to continue with the action.

Stop Primary Path

Terminates the primary path to the disk. When the Stop action finishes, the path is in a Down state.
If the disk drive is currently in use, a dialog box warns you and asks whether or not you want to
continue with the action.

Stop Volume

Terminates all paths for the primary and mirror drives of this volume. When the Stop action finishes,
the paths are in a Down state.

Switch Process Pair

Switches the primary and backup disk I/O processes.

Switch to Backup Path

Switches processing from the primary to the backup path.

Switch to Primary Path

Switches processing from the backup to the primary path.

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System Resources

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