Negative contributing factors to disk volume score – HP Integrity NonStop J-Series User Manual
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Guardian Performance Analyzer (GPA) User Guide
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Negative Contributing Factors to Disk Volume Score
This subsection of the score report clarifies the subsection
of the
. The disk volume
subsystem score is based on the performance and queue time of all disks. Example
4-38 is a detailed report displaying the disk volume subsystem score.
Example 4-38. Negative Contributing Factors to Disk Volume Score
DETAIL Negative Contributing Factors to Disk Volume Score
Disk name Blockd Hiproc Indexd Memory Overbs Pcache Queued R:C <1 Grading
--------- ------ ------ ------ ------ ------ ------ ------ ------ -------
$PROD3 X X X X X X - 7%
$PROD4 X X X X X - 32%
$PROD5 X X X - 3%
$PROD6 X X X X X - 5%
$PROD7 X X X X - 5%
$PROD8 X X X - 10%
$SYSTEM X X X X - 8%
$TEST2 X X X X - 2%
$TEST3 X X X X - 5%
--------- ------ ------ ------ ------ ------ ------ ------ ------- -------
Disk Score: 23%
NEGATIVE CONTRIBUTING FACTORS:
Blockd - Disk Blocked Problem Overbs - Cpu Overbusy Problem
Hiproc - High Proc Rate Pcache - Poor Cache
Indexd - Disk Reqs:Cache > 3.0 Queued - Disk Queue Problem
Memory - Memory Shortage R:C <1 - Disk reqs:Cache < 1.0
Notes on Disk Volume Subsystem Score: Good = 90% thru 100%
Fair = 75% thru 89%
Poor = 2% thru 74%
The negative contributing factors are the following:
(1)
Blockd: A disk with high request queue time and blocked requests
higher than the limit is one that has a blocked request problem.
(2)
Hiproc: A disk with request rate per second higher than the request
rate limit and high queue time is a disk with high request rate.
(3)
Indexd: An index problem is detected when a disk has high queue time
and cache call per request greater than the cache call ratio limit.
(4)
Memory: This problem is detected when a disk has high queue time
and a shortage of memory.