HP DL385 HP Insight Control Environment User Guide - Page 153

A HP Performance Management Pack measurement parameter matrix, Static analysis, ATA disk array

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A HP Performance Management Pack measurement parameter matrix This appendix details the measurement parameters evaluated by the performance management component for the various components of a system configuration. A brief description of each parameter that appears, in both the Status and Inventory view, is provided. Static analysis The following configuration information is gathered by hardware discovery and analyzed by PMP to display the performance status of server components: • Processors-For example, a mix of processors with different cache sizes • Memory • Network connections-For example, the ability to detect a NIC running at reduced speed or in half duplex mode • Storage-For example: • A fast physical disk drive plugged into an enclosure that cannot support the maximum I/O capabilities of the drive • A slow physical drive plugged into a fast enclosure • A RAID consisting of a mix of drive speeds • A RAID consisting of a mix of drive capacities • Host buses-For example: • Bus overloading • Too many I/O resources plugged into the same bus on a multi-bus server ATA disk array The following information is provided for an ATA disk array. ATA Disk Array Status • Reads/Sec-The number of reads from this ATA disk array each second • Writes/Sec-The number of writes to this ATA disk array each second • Read MBytes/Sec-The average number of megabytes read from the ATA disk array each second • Write MBytes/Sec-The average number of megabytes written to the ATA disk array each second • Millisec/Read-The average time for each read to complete • Millisec/Write-The average time for each write to complete • Queue Length-The average number of concurrent requests between the server and this ATA disk array, including transfers currently being serviced and transfers waiting for service, regardless of where the request is waiting (disk or IDE controller) ATA disk array performance is not evaluated because the performance of an array is determined by the performance of the disks in the array. ATA Disk Array Inventory • Array configuration • Displays the total capacity of the disk array • Displays where the disk array is defined (which IDE controller) • Displays the RAID level and striping factor (if applicable) for the array • Hard Drives-Lists the ATA disks that constitute the disk array • Spare Drives-Lists the ATA disks that are designated as spares Static analysis 153

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A HP Performance Management Pack measurement
parameter matrix
This appendix details the measurement parameters evaluated by the performance management component
for the various components of a system configuration. A brief description of each parameter that appears,
in both the Status and Inventory view, is provided.
Static analysis
The following configuration information is gathered by hardware discovery and analyzed by PMP to display
the performance status of server components:
•
Processors—For example, a mix of processors with different cache sizes
•
Memory
•
Network connections—For example, the ability to detect a NIC running at reduced speed or in half
duplex mode
•
Storage—For example:
A fast physical disk drive plugged into an enclosure that cannot support the maximum I/O
capabilities of the drive
•
•
A slow physical drive plugged into a fast enclosure
•
A RAID consisting of a mix of drive speeds
•
A RAID consisting of a mix of drive capacities
•
Host buses—For example:
Bus overloading
•
•
Too many I/O resources plugged into the same bus on a multi-bus server
ATA disk array
The following information is provided for an ATA disk array.
ATA Disk Array Status
•
Reads/Sec—The number of reads from this ATA disk array each second
•
Writes/Sec—The number of writes to this ATA disk array each second
•
Read MBytes/Sec—The average number of megabytes read from the ATA disk array each second
•
Write MBytes/Sec—The average number of megabytes written to the ATA disk array each second
•
Millisec/Read—The average time for each read to complete
•
Millisec/Write—The average time for each write to complete
•
Queue Length—The average number of concurrent requests between the server and this ATA disk array,
including transfers currently being serviced and transfers waiting for service, regardless of where the
request is waiting (disk or IDE controller)
ATA disk array performance is not evaluated because the performance of an array is determined by the
performance of the disks in the array.
ATA Disk Array Inventory
•
Array configuration
Displays the total capacity of the disk array
•
•
Displays where the disk array is defined (which IDE controller)
•
Displays the RAID level and striping factor (if applicable) for the array
•
Hard Drives—Lists the ATA disks that constitute the disk array
•
Spare Drives—Lists the ATA disks that are designated as spares
Static analysis
153