NonStop S-Series Operations Guide (G06.27+)

Disk Drives: Monitoring and Recovery
HP NonStop S-Series Operations Guide—522459-008
9-10
Monitoring the State of Disk Drives
Monitoring the State of Disk Drives
Each disk drive is configured to 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 9-1 lists possible values for the current state of a disk path.
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
To check for unspared defective sectors using DSAP, at a TACL prompt:
> DSAP $*
Monitoring the Size of Database Files
This subsection explains how to monitor the size of critical database files to prevent a
“file full” error (error 45) from occurring.
To check the size of any file on your system:
> FUP INFO filename, DETAIL
Table 9-1. States for Disk Drive Paths
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, and
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.