User`s guide

The first step in creating a disk unit on the HSZ40 controller is to configure a
disk device. This is done by giving the disk device a name. You must associate
that name with SCSI information that allows the HSZ40 controller to relate the
name to a ‘‘device bus’’ and a ‘‘target’’ on that bus. In the CLI documentation you
may see the disk ‘‘name’’ defined as a ‘‘container-name’’ or a disk-device-name.
To configure a disk device, you must add the disk to the controller’s configuration.
There are three ways to add a disk device:
• Enter the ADD DISK command from the HSZ40 CLI
• Run the CONFIG utility from the HSZ40 CLI
• Run the CFMENU utility from the HSZ40 CLI
The CONFIG and CFMENU utilities invoke the ADD DISK command.
The HSZterm layered product utility also can be used from a virtual terminal.
For more information on this utility, refer to the StorageWorks Configuration
Manager for DEC OSF/1 System Manager’s Guide for HSZterm.
The creation of disk devices use a Port Target Lun (PTL) naming convention. The
Port refers to the Device SCSI Port. The Target refers to the target ID number of
the physical slot that contains the device in the storage shelf. The LUN is always
‘‘0,’’ in the case of the HSZ40 array controller.
The disk name can contain up to nine characters. The name must start with
a letter (A–Z) and can then consist of up to eight more characters made up of
letters A–Z, numbers 0–9, periods (.), dashes (-), or underscores (_), for a total
of nine characters. The name is referred to as container-name. The standard
convention for the name is to use the following format:
CLI> ADD DISKPTL
Example:
CLI> ADD DISK100 1 0 0
where: P refers to the SCSI bus port number.
T refers to the SCSI ID number represented by the physical slot location in which
the device is located.
L is the LUN number. For HSZ40 controllers, the LUN is always 0. For example:
Name Port Target LUN
------------------------------------------------------
DISK100 1 0 0
Consider another storage shelf connected to SCSI Port 6 with a disk in slot ID 5
of that shelf. You would add the disk using the standard name format with the
following CLI command:
HSZ> ADD DISK DISK650 6 5 0
Name Port Target Lun
---------------------------------------------------
DISK650 6 5 0
The CONFIG and CFMENU utilities automatically scan all device SCSI ports
connected to the HSZ40 controller ports and configure all disks located in any
storage shelves connected to those ports. These utilities use the PTL name
format.
Operating System Support 8–31