Specifications

I–23
Compaq HSG80 Array Controller ACS Version 8.4 Configuration and CLI Reference Guide
Terminology of the controller, 2–2
Testing controllers, 7–87
This controller
explained, 7–2
removing from dual-redundant
controller configuration, 7–117,
7–119
starting diagnostic or utility programs,
7–84
This Controller and Other Controller
general description, 2–2
This controller, defined, xix
TIME
SET controller, 7–99
Tip, defined, xx
Topology
supported, 1–5
Transfer rate
how chunk size affects, 4–43
setting device, 7–11, 7–101
switch, 4–42
TRANSFER_RATE_REQUESTED,
4–42
ADD DISK, 7–11
SET device-name, 7–101
Transparent failover
REPORTED PORT_ID, 3–16
Transparent failover mode
active vs. standby ports, 2–5
assigning LUNs, 2–6
assigning unit numbers, 3–10
configuring, 5–12
connecting, 5–14
general description, 2–5
shared port IDs, 2–6
Transportability, 4–41
TRANSPORTABLE, 4–41
ADD DISK, 7–11
SET device-name, 7–101
Troubleshooting
backing up data with the Clone utility,
1–14
CLCP utility, 1–13
communication between controller and
devices with VTDPY, 1–13
communication between the controller
and hosts with VTDPY, 1–13
DILX, 1–13
FMU, 1–12
generating a new volume serial number
with the CHVSN utility, 1–14
generating read and write loads with
DILX, 1–13
investigating data transfer with DILX,
1–13
investigating I/O activity of units with
VTDPY, 1–13
logging I/O activity with DSTAT, 1–14
monitoring performance with DILX,
1–13
patching controller software with the
CLCP utility, 1–13
renaming the volume serial number
with the CHVSN utility, 1–14
replacing a failed controller with
FRUTIL, 1–14
replacing cache modules with
FRUTIL, 1–14
replacing ECBs with FRUTIL, 1–14
testing the controller and disk drives
with DILX, 1–13