HP 3000 Manuals HP 3000 Manuals
Using SYSGEN's I/O Configurator
You can use the I/O configurator to display information about the current
system configuration and to make any necessary changes to it. To access
the I/O configurator, do the following:
1. At the MPE prompt, start SYSGEN by entering:
:SYSGEN
2. At the SYSGEN prompt (sysgen>), enter:
sysgen>IO
First you see a list of the commands available to you. To issue a
command, you can enter either the full command name or the abbreviation
shown in parentheses.
___________________________________________________________________________
| |
| |
| sysgen>io |
| |
| ** I/O Configurator commands ** |
| |
| aclass (ac) adev (ad) apath (ap) avol (av) |
| dclass (dc) ddev (dd) dpath (dp) dvol (dv) |
| lclass (lc) ldev (ld) lpath (lp) lvol (lv) |
| maddress (ma) mclass (mc) mdev (md) mpath (mp) |
| mvol (mv) |
| |
| clear (cl)(c) exit (ex)(e) help (he)(h) hold (ho) |
| oclose (oc) redo |
| io> |
| |
___________________________________________________________________________
Example 3-1. Entering the I/O Configurator
You can display helpful information about any of the I/O Configurator
commands on the screen. To do so, enter the HELP command at the io>
prompt in one of two forms:
* To get help for a specific command, type HELP and then the command
name. For example, to display a description, the syntax, and
examples of the APATH command, enter:
io>HELP APATH
* To see a list of all the I/O Configurator commands with a brief
description of each one, simply enter HELP or H.
Viewing the current configuration
To get information about the current configuration, either displayed on
screen or printed, using the LCLASS, LDEV, LPATH, and LVOLcommands as
described in the following table.
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| | |
| Command | Definition |
| | |
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| | |
| LCLASS | Lists the specified class names and the devices assigned to each |
| | one. |
| | |
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| | |
| LDEV | Lists the attributes of the specified logical devices. |
| | |
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| | |
| LPATH | Lists the attributes of the specified paths. |
| | |
--------------------------------------------------------------------------------------------
| | |
| LVOL | Lists the attributes of the specified volume set member. |
| | |
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To list device classes.
A class name is an identifier to which numerous devices can be assigned.
Unlike logical device numbers, device class names are not unique to each
device. For example, all of your system's printers could be assigned the
class name LP, which stands for "line printer."
To list a class name, at the I/O Configurator prompt (io>), enter:
io>LCLASS parameters
LCLASS has the following parameters:
LCLASS (LC) [[CLASS =] classname,...] [[DEST =] OFFLINE]
The following list briefly explains
how to use the LCLASS command and provides examples.
Use this command To do this
LCLASS List all class names, class modes, and the
devices associated with the classes in the I/O
configuration.
LCLASS classname List the logical devices (LDEVs) that belong to
a particular device class. For example, to see
all LDEVs in the device class DISC, enter
LCLASS DISC.
LCLASS (classname, List multiple classes. Enclose each class name
classname) in parentheses and separate them with commas.
For example, to list the assigned LDEV numbers
of combined classes DISC and LP, enter LCLASS
(DISC,LP):
To list devices.
Each configured logical device (LDEV) is assigned a unique LDEV number
which identifies a physical device associated with a system. Use the
LDEV command (abbreviated LD) to list the characteristics of the I/O
devices configured for your system. You can list all devices, a subset
of them, or a specific device.
To list the devices on your system, at the I/O Configurator prompt (io>),
enter:
io>LDEV parameters
The LDEV command has the following parameters:
LDEV (LD) [[LDEV =] devicerange] [[ID =] productnumber]
[[TYPE =] devicetype] [[CLASS =] classname,...] [[DEST =] OFFLINE]
The following list briefly explains
how to use the LDEV command and provides examples.
Use this command To do this
LDEV List the characteristics of all of the I/O
devices currently configured.
LDEV ldev List one or more specific devices. To see
information about more than one device,
separate the device numbers with a comma. For
example, to list LDEV 38 and LDEV 39, enter
LDEV LDEV=38,39
LDEV ldev/ldev List a range of devices. Enter the first
device number and the last device number
separated by a slash. For example, to list
devices 4 through 9, enter LDEV 4/9.
LDEV (ldev/ldev, List a nonconsecutive range of devices.
ldev/ldev) Separate each range with a command and enclose
them in parentheses. For example, LDEV
(4/9,11/14).
LDEV CLASS=(classname, List all devices within a particular class or a
classname) set of classes. For example, to list all line
printers (the class LP) and disk drives (the
class DISC) on your system, enter LDEV
CLASS=(LP,DISC)
LDEV ID=IDnumber List all devices on your system that have a
particular product ID. For example, LDEV
ID=HP2566A.
LDEV TYPE=typename List all devices of a particular type. For
example, to see DISC devices, enter LDEV
TYPE=DISC. Note that SYSGEN displays only the
LDEV number for NMMGR devices. An asterisk (*)
after the LDEV number means the path conflicts
with NMMGR. Refer to System Startup,
Configuration, and Shutdown Reference Manual
(32650-90042) for more information on conflicts
between NMMGR and SYSGEN.
To list paths.
Use the LPATH command to display information about the adapters and I/O
devices on a specified path level. LPATH lists the configured I/O paths
according to their path, hierarchy level, or associated I/O manager.
To display I/O path information, at the I/O Configurator prompt (io>),
enter:
io>LPATH parameters
LPATH has the following parameters:
LPATH (LP) [[PATH =] path] [[LEVEL =] #] [[MANAGER =] managername,...]
[[DEST =] OFFLINE]
The following list briefly explains
how to use the LPATH command and provides examples.
Use this command To do this
LPATH List all configured paths. When you enter
LPATH with no parameters, you will see all of
the device-dependent information associated
with a given I/O path which includes:
* the ID of the device assigned to that
path level
* the logical and physical manager names
* the device type
LPATH PATH=pathnumber List a specific path. For example, to see path
4, enter LPATH PATH=4 Note that if you are
using a Series 950 through Series 980 system,
you must use a slash (/) to separate the bus
converter number from the rest of the path
identification. Otherwise, SYSGEN issues a
warning message.
LPATH pathlevel List I/O paths at a given level. For example,
to see the devices at level 1, enter LPATH,1.
The level number used in the LEVEL parameter
corresponds to the number of delimited digits
in the path displayed. For the Series 950
through Series 980 systems, the path 6/4.3.0
has 6 as the bus converter, 4 as the channel
adapter, 3 as the device adapter, and 0 as the
device. For the Series 925 through Series 949
systems, the path 4.2.0 has 4 as the channel
adapter, 2 as the device adapter, and 0 as the
device.
LPATH MANAGER= mngr List the I/O paths associated with a specific
device manager under the heading PMGR or LMGR.
If the manager you specify in the LPATH command
doesn't exist, SYSGEN issues a warning.For
example, LPATH MANAGER=CIPER_DM.
NOTE If you are working with a Series 922 or Series 932 system,
including the LX and RX models, refer to HP 3000 Series 922 Family
Computer Systems/Operator Hand book (A1027-90019).
To list volumes.
A volume is one disk pack. Each volume is a member of a volume set and
contains a volume label, a label table, and a free space map. To list
volumes, at the I/O Configurator prompt (io>), enter:
io>LVOL
LVOL has the following parameters:
LVOL (LV) [[VNAME =] volumename,[volumename][...]] [[DEST =] ``OFFLINE'']
The following list briefly explains how to use the LVOL command and
provides examples.
Use this command To do this
LVOL List volume information for all volumes.
LVOL volumename List the LDEV number, the amount of transient
and permanent space, the class status, and the
volume class of a member volume. For example,
to see information about the volume MEMBER1,
enter LVOL MEMBER1.
To print configuration information.
Each of the commands that you use to list configuration information has a
DEST=OFFLINE parameter that allows you to print the information instead
of displaying it on the console. This parameter is useful when you need
to compare one configuration to another or, for example, when you want to
enclose a printed copy of the configuration with the system load tape
(SLT).
To print configuration data, enter one of the list commands (LCLASS,
LDEV, LPATH or LVOL), any additional parameters you need, followed by the
parameter OFFLINE. This sends the listing to the file SYSGLIST. To close
and print the list, you use the OCLOSE command or exit the I/O
Configurator.
For example, to print information about all devices with device class
DISC and LP on your system, do the following:
1. At the I/O Configurator prompt (>io) enter:
io>LCLASS (DISC,LP) DEST=OFFLINE
Or, you can enter the command this way:
io>LCLASS (DISC,LP) OFFLINE
2. To close the file SYSGLIST and print the information, enter
io>OCLOSE
Configuring Devices with SYSGEN
There are two general categories of devices that you configure on your
computer system, local devices and non-local devices.
* Local devices are "hard-wired" or connected via parallel cables to
your computer. These include tape and disk drives and some
printers. You configure local devices with SYSGEN's I/O
Configurator. You may also configure I/O devices with the
IOCONFIG utility, explained later in this chapter.
* Non-local devices are connected via Datacommunication and Terminal
Controllers, or DTCs. These include terminals, PCs in terminal
emulation mode, serial printers and Uninterruptible Power Supply
(UPS) units. You configure non-local devices with the Node
Management Services Configuration Manager (NMMGR) program.
This section explains how to configure local devices with SYSGEN's I/O
configurator. It also explains how to configure UPS devices (which are
non-local devices) and how to use the UPS Monitor/iX software. For more
information about using NMMGR to configure all other non-local devices,
read Configuring Systems for Terminals, Printers, and Other Serial
Devices (32022-90001).
To identify local devices to the system.
There are certain attributes of local devices that you are required to
configure because they identify the device to the system. These include
the device identification number (ID), the I/O path, and the logical
device number (LDEV).
* The device identification is the product identification number
(for example HP7978B or HP2563A) of the device you are adding.
The file IODFAULT.PUB.SYS contains configuration information for
all devices supported by Hewlett-Packard. If your product ID
number is not listed in this file, you may wish to contact your
customer engineer. For nonsupported devices, the ID is always
USER and you must specify all attributes except class, class mode
and device name.
* An I/O path is the system address assigned to the device interface
hardware and software and the physical path used to reach an I/O
device. To add, change, or delete a path, you must correctly
identify the applicable device adapter interfaces and their
associated I/O devices.
At system power ON or RESET, the processor-dependent code (PDC)
and I/O-dependent code (IODC) hardware routines read and
initialize the I/O paths to boot or reboot the system. The I/O
paths that the system uses to load itself from disk or tape are
referred to as boot paths.
For more information about I/O paths, refer to the System Startup,
Configuration, and Shutdown Reference Manual (32650-90042).
* Each configured device is identified by a unique logical device
number, or LDEV. You assign logical device numbers to all system
devices except LDEV 1 (which is always the system master disk) and
LDEV 20 (which is always the console).
To configure default device attributes.
There are additional attributes for local devices that you can or must
leave set to the default. They include device type, associated output
device, device mode and device class, which are described next. A number
of other attributes that you can configure are explained throughout this
chapter.
* A logical device is identified by its type, which you cannot
change. Device types names are standardized, and each logical
device may be only one type. Be careful not to confuse type with
class.
Standard device types are:
DISC disk drives
TAPE tape drives
TERM terminals
LP line printers
PP page printers
AC autochanger
* The output device tells where output from a device goes. It is
either a logical device (LDEV) number or a device class. Only
devices that can accept HELLO, JOB or DATA logons require an
output device.
For the console and terminals, the output device is the same as
its LDEV. All terminals are both input and output devices and are
referred to by one LDEV number. For the job tape (or streams
device), the output device is usually LP. For printers and disks,
the output device is zero.
* An I/O device may operate in one or more modes such as JOB (which
means it accepts job and session logons) or INPUT (which means
that input to the device is spooled).
* The device class is a name used to identify a group of devices by
location (for example, BLDG2) or ownership (for example, FINANCE).
They can also be used to call for a device when you do not know an
LDEV number or when it is okay to use any device in that class.
(For example, you can specify the printer class BONSAI if you want
a report printed on any HP 2688A printer.)
A device can simultaneously belong to as many as eight classes.
If you specify a class name that does not exist, it is assigned
default characteristics. Some functions require a device in
specific classes.