HP Array Controller HSG V8.7 Software - Manual (Page 183)

Troubleshooting 4–29
Checking Unit Status and I/O Activity
Use the cache display to see the status and I/O activity for the logical
units configured on the controller (see Figure 4–4). Table 4–8 lists the
heading and contents for each column of the device status region.
Figure 4–4 Unit Status on the Cache Display
VTDPY> DISPLAY CACHE
S/N: ZG64100176 SW: v7.0 HW: CX-02
66% I/D Hit 99.8% Idle 0 KB/S 0 Rq/S Up: 0 5:16.42
Unit ASWC KB/S Rd% Wr% Cm% HT% PH% MS% Purge BlChd BlHit
P0300 o 0 0 0 0 0 0 0 0 0 0
D0303 o^ b 0 0 0 0 0 0 0 0 0 0
D0304 0 0 0 0 0 0 0 0 0 0
P0400 0 0 0 0 0 0 0 0 0 0
P0401 0 0 0 0 0 0 0 0 0 0
D0402 x^ b 0 0 0 0 0 0 0 0 0 0
Table 4–8 Unit Status Columns
Column Contents
Unit Kind of unit (and its unit number):
D = disk drive or CD-ROM drive
P = passthrough device
? = unknown device type
A Availability of the unit:
a = available to other controller
d = disabled for servicing, offline
e = mounted for exclusive access by a user
f = media format error
i = inoperative
m = maintenance mode for diagnostic purposes
o = online. Host may access this unit through “this
controller.”
r = rundown with the SET NORUN command
v = no volume mounted due to lack of media