HP Surestore Disk Array 12h and FC60 - Manual (Page 267)

Managing the Disk Array Using SAM 267
M
a
na
ging
the
Di
sk
Array
on HP-UX
6. Select the disk you want to identify. A check mark will appear on the selected disk and
all the other disks in the same disk group. For example, if the selected disk is part of a
LUN, all disks within the LUN will be checked. If the disk is a global hot spare, all global
hot spares will be checked.
7. Click on the Disk LED Flash Options button and select the desired option:
– Flash One will flash the Fault LED on the selected disk only.
– Flash Group will flash the Fault LEDs on all disk within the group
– Flash Enclosure will flash the Fault LEDs on all disks in the same enclosure as the
selected disk
– Flash All flashes the Fault LEDs on all disks within the entire disk array
8. Click Start to begin flashing the Fault LEDs
9. Click Stop to stop flashing the Fault LEDs, or click O
K
to close the window and stop the
flashing.
Binding a LUN
A number of settings allow you to define the LUN configuration. Before binding a LUN,
make sure you understand what each of the settings does and how it will impact LUN
behavior. See
"Configuring LUNs" on page 242 for more information.
The LUN binding process is designed to maintain high-availability by recommending that
you avoid creating a LUN that includes more than one disk per enclosure. If you attempt to
do so, you will be alerted that the resulting LUN will be vulnerable to an enclosure failure.
Note
How long does it take to bind a LUN?
The time it takes to bind a LUN depends on the size of the LUN you are creating.
The larger the LUN, the longer it takes. For example, binding a RAID 5 LUN with
18-Gbyte disks can take up to 60 minutes.