HP Essential Perforance Management Pack 4.2 350813-005 manual SAS Drives, SAS Drive Status

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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

•Disk Millisecond/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 SAS 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 SAS drive status. In general, the Disk Queue Length is a primary parameter. 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 Millisecond/Read or Write, PMP can determine if the number of requests for the drive will exceed the capabilities of the drive.

SAS 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 SAS protocol negotiated for transfers between this drive and the disk controller

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Contents HP ProLiant Essentials Performance Management Pack Page Contents Network storage controller Static analysis OverviewAbstract ATA Disk Array Inventory ATA disk arrayATA Disk Array Status ATA Disk Inventory ATA diskATA Disk Status Drive Array Inventory Drive arrayDrive Array Status External Storage Enclosure Inventory External storage enclosureExternal Storage Enclosure Status Fibre Channel Host Bus Adapter Inventory Fibre Channel host bus adapterFibre Channel Host Bus Adapter Status Host Buses Inventory Host busesHost Buses Status IDE Channel Inventory IDE channelIDE Channel Status IDE Controller Inventory IDE controllerIDE Controller Status Logical Drive Inventory Logical driveLogical Drive Status Memory Inventory MemoryMemory Status Network Adapter Inventory Network adapterNetwork Adapter Status Network Connection Inventory Network connectionsNetwork Connections Status Network Port Inventory Network portNetwork Port Status Network Storage Array Inventory Network storage arrayNetwork Storage Array Status Network Storage Controller Inventory Network storage controllerNetwork Storage Controller Status Network Storage Enclosure Inventory Network storage enclosureNetwork Storage Enclosure Status Network Share Inventory Network storage logical drivesNetwork Share Status PCI Bus Inventory PCI busPCI Bus Status Processors Inventory ProcessorsProcessors Status Scsi Adapter Inventory Scsi adapterScsi Adapter Status Scsi Storage Enclosure Inventory Scsi storage enclosureScsi Storage Enclosure Status Scsi Drive Inventory Scsi driveScsi Drive Status Server Inventory Server MetricsServer Status Smart Array Controller Inventory Smart Array controllerSmart Array Controller Status Smart Scsi Drive Inventory Smart Array Scsi driveSmart Array Scsi Drive Status Sata Drive Inventory Sata DrivesSata Drive Status SAS Drive Inventory SAS DrivesSAS Drive Status Storage Inventory Storage componentsStorage Status
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