HP 3000 Manuals HP 3000 Manuals
Adding an HP-IB Disk Drive
The master disk on any system, which is LDEV 1, should not be smaller
than 400 megabytes. A disk this size or smaller is too small to run the
operating system and its subsystems. However, you can use disks of this
size to store application programs and user files.
Once you use the IO configurator to add an HP-IB disk drive, you must
keep the changes, create a new SLT, and reboot the system for the
addition to take effect.
To add an HP-IB disk drive to your system, perform the following steps:
1. Start SYSGEN.
2. If you intend to modify a default configuration group, use the
KEEP command to make a copy of the group with a new name. (In
steps 8, 9, and 10 you will modify the copy in order to preserve
an uncorrupted version of the current configuration.)
3. Enter the BASEGROUP command to activate the base group you want to
modify. For example, to modify a base group named CONFG935,
enter:
sysgen>BASEGROUP CONFG935
In general, you use a group like CONFG935 once when the system is
first installed and then never again. SYSGEN's default action of
using the group that was used to boot the system is correct most
of the time.
4. Enter I/O at the sysgen> prompt to start the IO configurator.
5. Use the LCLASS, LDEV, and LPATH IO configurator commands (with the
OFFLINE parameter) to get current I/O configuration information.
For example:
io>LCLASS DEST=OFFLINE
io>LDEV DEST=OFFLINE
io>LPATH DEST=OFFLINE
6. Enter the OCLOSE command to close and print the configuration
lists.
7. Review the LDEV listing and choose an unused LDEV for the HP-IB
drive you are adding.
8. Review the LCLASS listing and choose a class for the HP-IB drive.
If your system has a DISC class, use that. (You may also enter
other class names; each device can simultaneously belong to up to
eight classes.) If you use a name that does not exist, SYSGEN
creates a class for you. Class names may not exceed eight
characters and must begin with an alphabetic character.
9. Use the APATH command to define the path to the device-adapter
level.
For example, suppose your customer engineer installed a new HP-IB
card (ID number, HP27113A) in the CIO expander (CA 36) on channel
adapter 2 in device adapter slot 2. To define the path, enter:
io>APATH 36.2 HP27113A
10. Use the ADEV command to add the drive to the path you specified.
Be sure to include the device address.
For example, to add the drive as LDEV 4, enter:
io>ADEV LDEV=4 PATH=36.2.0 ID=HP7937H CLASS=DISC
11. Enter the HOLD command to hold all changes.
12. Enter the EXIT command to exit the IO configurator.
13. At the sysgen> prompt, enter the KEEP command and a group name to
save changes in a permanent file.
14. Create a system load tape (SLT), store it in a secure location
with any other backup materials, and reboot the system. Read ''To
create system load tapes'' in Chapter 2 for more information.
Refer to Chapter 1 for rebooting instructions.