Sas Drive Inventory; Storage Components; Storage Status; Storage Inventory - HP Xw460c - ProLiant - Blade Workstation User Manual

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. 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 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

Storage components

Storage components differ depending on the server environment. PMP is designed to monitor a variety of
storage components, including:
Storage enclosures
Fibre Channel HBAs
SCSI arrays and logical and physical disk drives
Smart arrays

Storage Status

Storage Transfers/Sec—The number of PCI bus transfers to and from storage each second
Storage MBytes/Sec—The average number of megabytes transferred (read and written) on the storage
each second

Storage Inventory

Windows/Linux Logical Disks—Lists all of the logical disks in the storage subsystem and identifies their
associated drive letter, file system, disk drive size (in MB), and percentage of space used
Windows/Linux Physical Disks—Lists all of the physical disks in the storage subsystem and identifies
their associated SCSI ID, drive letter, and array controller
Storage components 167