HP NonStop NS Monitoring the State of Disk Drives, Monitoring the Use of Space on a Disk Volume

Disk Drives: Monitoring and Recovery Monitoring the State of Disk Drives

Monitoring the State of Disk Drives

Each disk drive can have two paths, the primary and the backup. (Each M8xxx disk drive is forced to have two paths.) The two path states are represented separately.

Table 10-1. Primary and Backup Path States for Disk Drives

Path State	Description
Degraded	This path of this disk drive has a state other than Up.
Down	The disk volume or disk path is not logically accessible.
Exclusive	Exclusive ownership has been declared for this disk volume. The
	disk is not accessible to other users.
Executing Diagnostics	The processor is performing diagnostics.
Format in Progress	A disk-format operation is in progress.
Hard Down	The volume or path was put in this state by the SCF ABORT DISK
	command, or cannot be accessed because of a hardware error.
Inaccessible	The disk cannot be accessed.
Not Configured	The component is not configured.
Revive	A mirrored disk is being updated.
Special	Only maintenance-type I/O tasks can be performed on the disk.
Unknown	The path state is unknown. The disk might not be responding.
Up	The disk volume or disk path is logically accessible.

Monitoring the Use of Space on a Disk Volume

The Disk Space Analysis Program (DSAP) provides information on disk capacity, free- space fragments, and page allocation. To check for bad sectors, you can use SCF:

-> INFO DISK $*, BAD, SEL started, sub magnetic

Bad Sectors Information $DATA14 Primary:

No bad sectors found.

You can also use DSAP at a TACL prompt:

> DSAP $*

Monitoring the Size of Database Files

To check file size:

> FUP INFO filename, DETAIL

A report similar to this one is sent to your home terminal:

HP Integrity NonStop NS-Series Operations Guide—529869-005

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