Hp Insight Management Agents User Manual Page 92

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Physical Width—Displays the actual width of the data transfer bus for this device. The
following values are valid:
— Narrow (8 bits)—The device supports a narrow 8-bit data transfer bus.
— Wide (16 bits)—The device supports a wide 16-bit data transfer bus.
— Unknown—The Storage Agents are unable to determine the physical data transfer
width for this device.
Current Width—Displays the width of the data transfer bus that was negotiated between
the controller and the device. If this value is less than the device physical data bus width,
the device will not provide maximum performance. Maximum throughput is achieved when
both the SCSI controller and device support a wide 16-bit data bus. The following values
are valid:
— Narrow (8 bits)—The negotiated data bus transfer width is narrow (8 data bits).
— Wide (16 bits)—The negotiated data bus transfer width is wide (16 data bits).
Unknown—The Storage Agents are unable to determine the current data transfer width
negotiated for this device.
Current Speed—Displays the current negotiated data transfer speed for this device. The
following values are valid:
— Asynchronous—The negotiated data transfer speed for this device is asynchronous.
— SCSI-1—The negotiated data transfer speed for this device is 5 million transfers per
second.
— Fast—The negotiated data transfer speed for this device is 10 million transfers per
second.
— Ultra—The negotiated data transfer speed for this device is 20 million transfers per
second.
— Ultra2—The negotiated data transfer speed for this device is 40 million transfers per
second.
— Ultra3—The negotiated data transfer speed for this device is 80 million transfers per
second.
— Ultra320—The negotiated data transfer speed for this device is 160 million transfers per
second.
— Unknown—The agent is unable to determine the current negotiated data transfer speed
for this device.
NOTE: If the current data transfer width is Narrow (8 bits) then the speed in megabytes
per second is equal to the million transfers per second speed. If the current width is Wide
(16 bits) then the speed in megabytes per second is twice the million transfers per second
speed. For example, if the current speed is Ultra and the width is Wide then the speed would
be 40 megabytes per second.
SAS Host Bus Adapter
Select a SAS host bus adapter entry from the Mass Storage list to display a submenu containing
separate entries for HBA Information and SAS devices connected to the HBA. The following
items may be displayed depending on the type of HBA:
SAS Host Bus Adapter
SAS Physical Drive
SAS Logical Drive
SAS Tape Drive
SAS Storage System
92 Agent information
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