SCSI Drive Inventory
• Drive Information
Displays a description of the drive, including the 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 SCSI protocol negotiated for transfers between this drive and the disk
controller
SCSI storage enclosure
The following information is provided for a SCSI storage enclosure.
SCSI Storage Enclosure Status
• Transfers/Sec—The average number of transfers on this SCSI bus each second (the sum of
the Disk Transfers/Sec for all hard drives on this bus).
• MBytes/Sec—The average number of megabytes transferred on this SCSI bus each second
(the sum of the Disk MBytes/Sec for all SCSI drives on this bus).
• SCSI Utilization %—The average SCSI utilization for this SCSI bus, which is primarily dependent
on the MBytes/Sec, and the SCSI protocol negotiated between the controller and each drive
on the bus. The negotiated SCSI protocol is reported in the hard drive inventory. The valid
SCSI protocols include:
◦ SCSI-1-5 MB/s with 8-bit transfers at 5 MHz (5,000,000 bytes/s)
◦ Fast SCSI-2- 10 MB/s with 8-bit transfers at 10 MHz (10,000,000 bytes/s)
◦ Fast-Wide SCSI-2- 20 MB/s with 16-bit transfers at 10 MHz
◦ Ultra SCSI-3- 20 MB/s with 8-bit transfers at 20 MHz
◦ Wide-Ultra SCSI-3- 40 MB/s with 16-bit transfers at 20 MHz
◦ Wide Ultra2 SCSI- 80 MB/s with 16-bit transfers at 40 MHz
◦ Wide Ultra3 SCSI- 160 MB/s with 16-bit transfers at 80 MHz
◦ Ultra320 SCSI- 320 MB/s with 16-bit transfers at 160 MHz
SCSI storage enclosure performance is determined by the SCSI Utilization %.
56 Measurement parameter matrix
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