Document revision date: 30 March 2001

This command allows a user to replace one tape drive behind a Modular Data Router (MDR) with another tape drive at the same Fibre Channel (FC) Logical Unit Number (LUN) location. This command updates all the necessary file and memory data structures with the WWID of the new tape drive. The name of the replacement drive will be the same as the name of the original drive.

The command requires CMKRNL privilege. It applies only to FC tapes behind an MDR.

For more information about Fibre Channel, see the Guidelines for OpenVMS Cluster Configurations.

Format

IO REPLACE_WWID devnam

Parameters

devnam

The device name of the new tape drive.

Qualifiers

None.

Description

You might, for example, need to replace a defective tape drive with a new drive without rebooting the cluster, and the new drive might need to retain the device name of the previous tape at that location.

When you use this command, keep in mind that:

• The replacement device must be set to the same SCSI target ID as the original device.
• You must stop all activity on the device before issuing the IO REPLACE_WWID command.
• The command requires CMKRNL privilege and applies only to FC tapes behind an MDR.

Example

SYSMAN> IO REPLACE_WWID $2$MGA1
      

This command updates all the necessary file and memory data structures with the WWID of the new tape drive, $2$MGA1.

On Alpha systems, the IO SCSI_PATH_VERIFY subcommand checks each SCSI and FC path in the system to determine whether the attached device has been changed. If a device change is detected, then the SCSI or FC path is disconnected in the IO database. This allows the path to be reconfigured on the new device, by using the IO AUTOCONFIGURE command.

You must have CMKRNL privilege to use the IO SCSI_PATH_VERIFY command.

Format

IO SCSI_PATH_VERIFY

Parameters

None.

Qualifiers

None.

Description

You usually enter the IO SCSI_PATH_VERIFY command after performing an online reconfiguration of a SCSI or an FC interconnect. The command reads the device type and device identifier on each SCSI and FC path in the system. If the device does not match the data stored in the IO database, then the path is disconnected in the IO database. Following an IO SCSI_PATH_VERIFY command, you usually enter an IO AUTOCONFIGURE command, which updates the IO database to match the new SCSI or FC configuration.

Example

SYSMAN> IO SCSI_PATH_VERIFY
SYSMAN> IO AUTOCONFIGURE
 
      

The first command in this example checks all SCSI paths and disconnects the ones that are no longer valid. The second command autoconfigures all devices that are physically attached to the system.

IO SET EXCLUDE (Alpha Only)

On Alpha systems, sets the permanent exclusion list to be used when configuring devices automatically.

Format

IO SET EXCLUDE = (device_name)

Parameters

(device_name)

Specifies the device type to be excluded from automatic configuration. Use valid device names or mnemonics that indicate the devices to be included in the permanent exclusion list. You can specify wildcards.

Qualifiers

None.

Description

Sets the permanent exclusion list to be used when configuring devices.

Example

SYSMAN> IO SET EXCLUDE=(DKC500,DKD*)
      

This example specifies that DKC500 and all DKD devices are not to be autoconfigured.

Refer to the /SELECT qualifier for additional examples that show how to specify device names.

On Alpha systems, sets the prefix list that is used to manufacture the IOGEN Configuration Building Module (ICBM) names.

Format

IO SET PREFIX =icbm_prefix

Parameters

icbm_prefix

Specifies ICBM prefixes. These prefixes are used by the IO AUTOCONFIGURE command to build ICBM image names.

Qualifiers

None.

Description

The IO SET PREFIX command sets the prefix list which is used to manufacture ICBM names.

Example

SYSMAN> IO SET PREFIX=(SYS$,PSI$,VME_)
      

This example specifies the prefix names used by IO AUTOCONFIGURE to build the ICBM names. The prefixes are SYS$, PSI$, and VME_.

On Alpha systems, lists all the buses, node numbers, bus names, TR numbers, and base CSR addresses on the system. This display exists primarily for internal engineering support.

On VAX systems, use the SYSGEN command SHOW/BUS.

Parameters

None.

Qualifiers

None.

Description

The IO SHOW BUS command lists all the buses, node numbers, bus names, TR numbers, and base CSR addresses. This display exists primarily for internal engineering support. You must have CMKRNL privilege to use IO SHOW BUS.

Example

SYSMAN> IO SHOW BUS
_Bus__________Node_TR#__Name____________Base CSR__________ 
LSB           0    1    EV3 4MB        FFFFFFFF86FA0000 
LSB           6    1    MEM            FFFFFFFF86FC4000 
LSB           7    1    MEM            FFFFFFFF86FCA000 
LSB           8    1    IOP            FFFFFFFF86FD0000 
    XZA XMI-SCSI  0    3    XZA-SCSI       0000008001880000 
    XZA XMI-SCSI  1    3    XZA-SCSI       0000008001880000 
    XZA XMI-SCSI  0    4    XZA-SCSI       0000008001900000 
    XZA XMI-SCSI  1    4    XZA-SCSI       0000008001900000 
  XMI           4    2    LAMB           0000008001A00000 
    DEMNA         0    5    Generic XMI    0000008001E80000 
    DEMNA         0    6    Generic XMI    0000008001F00000 
      

This example is from a DEC 7000 Model 600. Displays vary among different Alpha systems.

The indentation levels are deliberate in this display. They indicate the hierarchy of the adapter control blocks in the system. The column titles in the display have the following meanings:

Column Titles	Meaning
Bus	Identity of the bus
Node	Index into the associated bus array; the bus slot
TR#	Nexus number of the adapter to which the specified device is connected
Name	Name of the device
Base CSR	Base CSR address of the device

On Alpha systems, you can use the SDA command CLUE CONFIG to display additional information including hardware adapters and devices. This command is documented in the OpenVMS Alpha System Dump Analyzer Utility Manual.

For more information about loading and configuing device drivers, refer to Writing OpenVMS Alpha Device Drivers in C.

IO SHOW DEVICE (Alpha Only)

On Alpha systems, displays information about device drivers loaded into the system, the devices connected to them, and their I/O databases. All addresses are in hexadecimal and are virtual. On VAX systems, use the SYSGEN command SHOW/DEVICE.

Format

IO SHOW DEVICE

Parameters

None.

Qualifiers

None.

Description

The IO SHOW DEVICE command displays information about the device drivers loaded into the system, the devices connected to them, and their I/O databases.

The IO SHOW DEVICE command specifies that the following information be displayed about the specified device driver:

Driver	Name of the driver
Dev	Name of each device connected to the driver
DDB	Address of the device's device data block
CRB	Address of the device's channel request block
IDB	Address of the device's interrupt dispatch block
Unit	Number of each unit on the device
UCB	Address of each unit's unit control block

All addresses are in hexadecimal and are virtual.

Refer to A Comparison of System Management on OpenVMS AXP and OpenVMS VAX¹ and the OpenVMS System Manager's Manual for additional information about SYSMAN.

Example

SYSMAN> IO SHOW DEVICE
      

The following example is a sample display produced by the IO SHOW DEVICE command:

__Driver________Dev_DDB______CRB______IDB______Unit_UCB_____ SYS$FTDRIVER FTA 802CE930 802D1250 802D04C0 0 801C3710 SYS$EUDRIVER EUA 802D0D80 802D1330 802D0D10 0 801E35A0 SYS$DKDRIVER DKI 802D0FB0 802D0F40 802D0E60 0 801E2520 SYS$PKADRIVER PKI 802D1100 802D13A0 802D1090 0 801E1210 SYS$TTDRIVER OPERATOR NLDRIVER

SYS$TTDRIVER, OPERATOR, and NLDRIVER do not have devices associated with them.

IO SHOW EXCLUDE (Alpha Only)

On Alpha systems, displays the permanent exclusion list used in the autoconfiguration of devices.

Format

IO SHOW EXCLUDE

Parameters

None.

Qualifiers

None.

Description

The IO SHOW EXCLUDE command displays the permanent exclusion list on the console. This list is used in the autoconfiguration of devices.

Example

SYSMAN> IO SHOW EXCLUDE
%SYSMAN-I-IOEXCLUDE, the current permanent exclusion list is: DKC500,DKD*
      

This example shows the permanent exclusion list used in the autoconfiguration of devices; the current list contains DKC500 and all DKD devices.

On Alpha systems, displays the current prefix list used in the manufacture of IOGEN Configuration Building Module (ICBM) names.

Format

IO SHOW PREFIX

Parameters

None.

Qualifiers

None.

Description

The IO SHOW PREFIX command displays the current prefix list on the console. This list is used by the IO AUTOCONFIGURE command to build ICBM names.

Example

SYSMAN> IO SHOW PREFIX
%SYSMAN-I-IOPREFIX, the current prefix list is: SYS$,PSI$,VME_
      

This example shows the prefixes used by IO AUTOCONFIGURE to build ICBM names.

LICENSE LOAD

Activates licenses registered in the LICENSE database.

Requires CMKRNL, SYSNAM, and SYSPRV privileges.

Note Except for the number of status messages returned, the following commands are functionally equivalent: SYSMAN> LICENSE LOAD $ LICENSE LOAD To see all the status messages on remote nodes for the DCL command, you can use the following SYSMAN command: SYSMAN> DO LICENSE LOAD

Format

LICENSE LOAD product

Parameter

product

Specifies the name of the product whose license you want to activate.

Qualifiers

/DATABASE=filespec

Specifies the location of the LICENSE database. The default file specification is SYS$COMMON:[SYSEXE]LMF$LICENSE.LDB. Using the /DATABASE qualifier is not necessary if you use the default LICENSE database name and location.

/PRODUCER=string

Specifies the name of the company that owns the product for which you have a license. Use this qualifier only if the product is from a company other than Compaq.

Description

You can use the LICENSE LOAD command to activate licenses on multiple systems and on nonlocal systems in the system management environment. The SYSMAN LICENSE commands are a subset of the License Management Facility (LMF) commands. For more information about the LMF, refer to the OpenVMS License Management Utility Manual.

Example

SYSMAN> LICENSE LOAD FORTRAN 
      

This example activates the license for Compaq Fortran for OpenVMS. Because the license is for a Compaq product, the command does not include the /PRODUCER qualifier.

Deactivates licenses registered in the LICENSE database.

Requires CMKRNL, SYSNAM, and SYSPRV privileges.

Format

LICENSE UNLOAD [product]

Parameter

product

Specifies the name of the product whose license you want to deactivate. If you enter the LICENSE UNLOAD command without specifying a product name, the system deactivates all available registered licenses.

Qualifier

/PRODUCER=string

Specifies the name of the company that owns the product for which you have a license. Use this qualifier only if the product is from a company other than Compaq.

Description

You can use the LICENSE UNLOAD command to deactivate licenses on multiple systems and on nonlocal systems in the system management environment. The SYSMAN LICENSE commands are a subset of the License Management Facility (LMF) commands. For more information about the LMF, refer to the OpenVMS License Management Utility Manual.

Example

SYSMAN> LICENSE UNLOAD FORTRAN 
      

This command deactivates the license for Compaq Fortran for OpenVMS. Because the license is for a Compaq product, the command does not include the /PRODUCER qualifier.

PARAMETERS DISABLE CHECKS

Bypasses validation of parameter values. SYSMAN parameter validation ensures that the parameters fall within the defined minimum and maximum values specified in the PARAMETERS SET command.

Format

PARAMETERS DISABLE CHECKS

Parameters

None.

Qualifiers

None.

Description

The PARAMETERS DISABLE CHECKS command enables you to override minimum and maximum values established for system parameters. SYSMAN does parameter checks by default. If you attempt to set parameter values outside the allowable limits when checks are enabled, the operating system issues an error message. By disabling checks you can set parameter values regardless of the minimum and maximum limits.

Note Range checks are enabled by default because Compaq suggests that systems operate within these minimum and maximum values. Setting parameters outside these limits can result in system failures or hangs.

Example

SYSMAN> SET ENVIRONMENT/CLUSTER
SYSMAN> SET PROFILE/DEFAULT=SYS$SYSTEM/PRIVILEGES=CMEXEC 
SYSMAN> PARAMETERS SET MAXPROCESSCNT 10
%SMI-E-OUTRANGE, parameter is out of range 
SYSMAN> PARAMETERS DISABLE CHECKS
SYSMAN> PARAMETERS SET MAXPROCESSCNT 10 
      

In this example, the initial attempt to set MAXPROCESSCNT below the minimum fails because range checks are enabled. However, once range checks are disabled, the PARAMETERS SET MAXPROCESSCNT command succeeds.

PARAMETERS ENABLE CHECKS

Validates all parameter values to ensure that they fall within the defined minimum and maximum values.

Because range checks are enabled by default, use PARAMETERS ENABLE CHECKS after entering a PARAMETERS DISABLE CHECKS command.

Format

PARAMETERS ENABLE CHECKS

Parameters

None.

Qualifiers

None.

Example

SYSMAN> PARAMETERS DISABLE CHECKS
SYSMAN> PARAMETERS SET WSMAX 20
SYSMAN> PARAMETERS ENABLE CHECKS
SYSMAN> PARAMETERS SET WSMAX 30
%SMI-E-OUTRANGE, parameter is out of range
SYSMAN> PARAMETERS SHOW WSMAX
Parameter Name    Current  Default  Minimum  Maximum Unit  Dynamic
WSMAX                2000     1024       60   6400 pages          
 
      

The PARAMETERS ENABLE CHECKS command in this example shows that when range checking is disabled, the system accepts a working set value (WSMAX) of 20. However, once range checking is enabled with the PARAMETERS ENABLE CHECKS command, the system does not accept a WSMAX below the minimum, which is 60.

Changes the value of a specific parameter in the work area.

The PARAMETERS SET command does not modify parameter files, the current system parameter file on disk, or the active system. For information about performing these modifications, see the PARAMETERS WRITE command.

Format

PARAMETERS SET parameter-name [value]

/STARTUP filespec

Parameters

parameter-name

Specifies the name of the parameter to modify. Instead of a name, you can enter a period (.) to change the value of the most recently displayed or the most recently modified parameter. See the PARAMETERS SHOW command for an example of using the period in place of a parameter name.

For a list of system parameters and further information about them, use the command HELP PARAMETERS.

value

Specifies the new value for the parameter. Enclose values for ASCII parameters in quotation marks if they contain embedded spaces or other special characters.

Typically the value is an integer or the keyword DEFAULT. The keyword DEFAULT sets the parameter to its default value. The PARAMETERS SHOW command displays the defined minimum, maximum, and default values for the parameter, which are required unless range checking is disabled with the command PARAMETERS DISABLE CHECKS.

Qualifiers

/STARTUP filespec

Sets the name of the site-independent startup procedure to the given file specification. A file specification has a maximum length of 31 characters. The initial startup command procedure is SYS$SYSTEM:STARTUP.COM.

Examples

SYSMAN> PARAMETERS SET PFCDEFAULT 20
      

This command assigns a value of 20 to the PFCDEFAULT parameter.

SYSMAN> PARAMETERS SET GBLSECTIONS DEFAULT
      

This command assigns the default value (40) to the GBLSECTIONS parameter.

SYSMAN> PARAMETERS SET/STARTUP SYS$SYSTEM:XSTARTUP.COM
      

This command assigns SYS$SYSTEM:XSTARTUP.COM as the current site-independent startup command procedure.

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