ASAP 3.0 Server Manual

HP NonStop ASAP Server Manual Page 162 of 342
RATE
displays disk utilization in I/Os per second, including: rate per second, reads per
seconds, writes per second, Chit, Queue length, and Swaps per second. GBUSED
shows the number of gigabytes allocated. For a description of the performance
statistics, see the DISK Statistics table.
STATE
shows all attributes that have an associated state. Associated states are displayed
for the disk command without any options, and the disk command with these
options: RATE, QUEUE, AVG, PERCENT (Default).
DISK Statistics
The following table lists the DISK statistics and characteristic options. You can also
specify HELP DISKSTATS to display a list of disk statistics and options.
Table 6-5. DISK Statistics and Descriptions
Statistics
Option/Description
BSPLT
The block split total of 512 through 4096 block splits for the volume.
BUSY%
Total percentage disk busy during read, write, and seek operations.
CHIT
Cache hits. Total of 512 through 4096 blocks that occurred per second.
DATE
Date of the sample converted to the database local civil time.
INPUTKB
The number of kilobytes read per second from the disk.
GBUSED
Total gigabytes of disk space allocated.
Max ExtMB
The largest free extent available for the volume.
MBUSE%
Percentage of disk space allocated.
MB AVAIL
Total megabytes of disk space allocated.
OUTPTKB
The number of kilobytes written per second to the disk.
QLEN
The disk queue length of read/write operations waiting to execute.
QM
The maximum number of items in the queue described by QLEN.
RATE
The total utilization of reads, writes, and seeks per second.
RBLK
The number of operations blocked because of file or record locks.
READ
Number of reads per second.
READ%
Percentage of time spent reading.
REQUESTS
The number of I/O requests per second received by the disk process.
STATE
State of the drive; the DISK INFO command for the list of possible states.
SWAP
Number of memory page swaps per second to or from disk.