Hp Integrity NonStop J-Series Instrukcja Użytkownika Pobierz pdf (Strona 119)

Guardian Performance Analyzer (GPA) User Guide – (544541-006) Page 119 of 131

Negative Contributing Factors to Disk Volume Score

This subsection of the score report clarifies the subsection Disk Volume Subsystem

Performance Score of the System Performance Summary. 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.

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