HP Xw460c HP Insight Control Environment User Guide - Page 166

SATA Drives, SATA Drive Status, SATA Drive Inventory

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• Displays the array in which the drive is configured • Provides the SCSI protocol negotiated for transfers between this drive and the disk controller SATA Drives The following information is provided for a SATA drive. SATA Drive Status • Disk Read/Sec-The average number of reads from the selected SATA drive each second • Disk Write/Sec-The average number of writes to the selected SATA drive each second • Disk Read Mbytes/Sec-The average number of Megabytes of data read from the selected SATA drive each second • Disk Write Mbytes/Sec-The average number of Megabytes of data written to the selected SATA drive each second • Disk Millisec/Read-The average time required to complete a read operation • Disk Millisec/Write-The average time required to complete a write operation • Disk Queue Length-The average number of transfer requests (reads and writes) waiting to be serviced by the SATA drive, including transfers currently being serviced and transfers waiting for service, regardless of where the request is waiting (drive or controller) PMP uses a set of algorithms to determine the SATA drive status. The Disk Queue Length is a primary parameter. However, when the value of the Disk Queue Length exceeds the acceptable value, the Disk Reads/Sec and Writes/Sec are examined to determine whether read or write operations require most of the drive throughput. When combined with Disk Millisec/Read or Write, PMP can determine if the number of requests for the drive will exceed the capabilities of the drive. SATA Drive Inventory • Drive Information • Displays description of the drive, including size • Displays the hard drive model number • Displays the exact size of the drive as seen by the operating system • Configuration Information • Provides a summary of the drive configuration • Displays the name of the Smart Array controller to which it is attached • Displays the location of the hard drive in its enclosure • Displays the array in which the drive is configured • Provides the SATA protocol negotiated for transfers between this drive and the disk controller SAS Drives The following information is provided for a SAS Drive. SAS Drive Status • Disk Read/Sec-The average number of reads from the selected SAS drive each second • Disk Write/Sec-The average number of writes to the selected SAS drive each second • Disk Read Mbytes/Sec-The average number of Megabytes of data read from the selected SAS drive each second • Disk Write Mbytes/Sec-The average number of Megabytes of data written to the selected SAS drive each second • Disk Millisecond/Read-The average time required to complete a read operation 166 HP Performance Management Pack measurement parameter matrix

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•
Displays the array in which the drive is configured
•
Provides the SCSI protocol negotiated for transfers between this drive and the disk controller
SATA Drives
The following information is provided for a SATA drive.
SATA Drive Status
•
Disk Read/Sec—The average number of reads from the selected SATA drive each second
•
Disk Write/Sec—The average number of writes to the selected SATA drive each second
•
Disk Read Mbytes/Sec—The average number of Megabytes of data read from the selected SATA drive
each second
•
Disk Write Mbytes/Sec—The average number of Megabytes of data written to the selected SATA drive
each second
•
Disk Millisec/Read—The average time required to complete a read operation
•
Disk Millisec/Write—The average time required to complete a write operation
•
Disk Queue Length—The average number of transfer requests (reads and writes) waiting to be serviced
by the SATA drive, including transfers currently being serviced and transfers waiting for service,
regardless of where the request is waiting (drive or controller)
PMP uses a set of algorithms to determine the SATA drive status. The Disk Queue Length is a primary
parameter. However, when the value of the Disk Queue Length exceeds the acceptable value, the Disk
Reads/Sec and Writes/Sec are examined to determine whether read or write operations require most of
the drive throughput. When combined with Disk Millisec/Read or Write, PMP can determine if the number
of requests for the drive will exceed the capabilities of the drive.
SATA Drive Inventory
•
Drive Information
Displays description of the drive, including size
•
•
Displays the hard drive model number
•
Displays the exact size of the drive as seen by the operating system
•
Configuration Information
Provides a summary of the drive configuration
•
•
Displays the name of the Smart Array controller to which it is attached
•
Displays the location of the hard drive in its enclosure
•
Displays the array in which the drive is configured
•
Provides the SATA protocol negotiated for transfers between this drive and the disk controller
SAS Drives
The following information is provided for a SAS Drive.
SAS Drive Status
•
Disk Read/Sec—The average number of reads from the selected SAS drive each second
•
Disk Write/Sec—The average number of writes to the selected SAS drive each second
•
Disk Read Mbytes/Sec—The average number of Megabytes of data read from the selected SAS drive
each second
•
Disk Write Mbytes/Sec—The average number of Megabytes of data written to the selected SAS drive
each second
•
Disk Millisecond/Read—The average time required to complete a read operation
166
HP Performance Management Pack measurement parameter matrix