HP Array Controller HSG V8.7 Software - Manual (Page 111)

Creating Storagesets 3–33
2. Establish a local or remote connection to one of the controllers in your
subsystem.
3. Show the devices that are assigned to the controller. Use the following
command:
SHOW DEVICES
4. Locate each device assigned to the controller and record its location on
your copy of the cabinet template. Use the following command:
LOCATE device_name
The LOCATE command causes the device’s LED to flash continuously.
5. Turn off the LED, using the following command:
LOCATE CANCEL
The controller names each device based on its Port-Target-LUN (PTL)
location. See the next section for details about the controller’s PTL
addressing convention. Repeat step 2 through step 4 for each controller
or dual-redundant pair of controllers.
6. After you have mapped the devices to your cabinet template, create the
storageset map by circling each group of disk drives that you want to
combine into a storageset or put into the spareset. Label each group with
a storageset name, for example: RAID1 for a RAIDset; Mirr1 for a
mirrorset; and Stripe1 for a stripeset.
Device PTL Addressing Convention within the Controller
Your controller has six SCSI–2 device ports. Each device port connects
to an enclosure that supports 1 to 4 devices or “targets.” Every device
uses LUN 0.
The controller identifies the location of devices based on a Port-Target-
LUN (PTL) numbering scheme. The controller uses the PTL address to
locate devices.
n P—Designates the controller’s SCSI device port number (1 through
6).
n T—Designates the target identification (ID) number of the device.
Valid target ID numbers for a single-controller configuration and
dual-redundant controller configuration are 0 through 15, excluding
ID numbers 4 through 7. ID numbers 4 and 5 are never used.
n L—Designates the logical unit (LUN) of the device.