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Disk Drives: Monitoring and Recovery
HP Integrity NonStop NS-Series Operations Guide—529869-005
10-9
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.
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
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:
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.
Bad Sectors Information $DATA14 Primary:
No bad sectors found.