Specifications

4–40 Compaq StorageWorks HSG80 Array Controller ACS Version 8.5 Maintenance and Service Guide
Checking Device-Port Status and I/O Activity
The device-port status region of the device display (see Figure 4–2, lower left) shows the
I/O characteristics for the controller device ports. Table 4–12 lists the heading and
contents for each column of the device-port status region.
S Spindle state of the device:
^ = disk spinning at correct speed; tape loaded
> = disk spinning up
< = disk spinning down
v = disk not spinning
= unknown spindle state
W
Write-protection state of the device. For disk drives, a W in this column indicates that
the device is hardware write-protected. This column is blank for other kinds of devices.
F
Fault state of the device. An F in this column indicates an unrecoverable device fault. If
this field is set, the device fault LED should also be lit.
Rq/S
Average request rate for the device during the last update interval. Requests can be up
to 32K and generated by host or cache activity.
RdKB/S Average data transfer rate from the device (reads) during the last update interval.
WrKB/S Average data transfer rate to the device (writes) during the last update interval.
Que
Maximum number of I/O requests waiting to be transferred to the device during the last
update interval.
Tg
Maximum number of requests queued to the device during the last update interval. If
the device doesn’t support tagged queuing, the maximum value is 1.
BR Number of SCSI bus resets that occurred since VTDPY was started.
ER
Number of SCSI errors received. If the device is swapped or deleted, then the value
clears and resets to 0.
Table 4–12 Device-Port Status Columns
Column Contents
Port SCSI device ports 1 through 6.
Rq/S Average request rate for the port during the last update interval. Requests can be up to
32K and generated by host or cache activity.
Table 4–11 Device Status Columns (Continued)
Column Contents