HP OpenVMS Systems Documentation
OpenVMS System Manager's Manual
|Getting information about devices on the system||Section 8.2|
|Setting security protection characteristics on devices||Section 8.3|
|Connecting devices and loading device drivers||Section 8.4|
|Automatically configuring devices for OpenVMS Alpha systems||Section 8.5|
|Managing terminals||Section 8.6|
|Managing modems||Section 8.7|
|Managing printers||Section 8.8|
|Managing tape drives||Section 8.9|
|+Managing card readers||Section 8.10|
This chapter explains the following concepts:
|Device names||Section 8.1|
|Device configuration||Section 8.5.1|
|Spooled printers||Section 8.8.2|
Local Digital Storage Architecture (DSA) devices use a controller letter of "A" regardless of the physical controller the device resides on. Preceding the letter "A":
Use of a single controller letter requires that the unit number for each local DSA device be unique. Duplicate unit numbers are possible if the local disks reside on different controllers.
If the system is part of an OpenVMS Cluster environment, device names are formatted in one of the following ways:
For more information about the device name format in VAXcluster or OpenVMS Cluster environments, refer to OpenVMS Cluster Systems.
For information about the naming conventions for Fibre Channel disk and
tape devices, see Guidelines for OpenVMS Cluster Configurations.
8.2 Getting Information About Devices on the System
When you invoke the SHOW DEVICES command and do not specify a device or use a qualifier, the system displays information about all recognized devices.
If a device does not appear in the display, it is not recognized by the system. The device may not be connected, or the driver may not be loaded. For certain devices, you must manually connect them and load their device drivers. For more information, see Section 8.4.
If you specify a device name with the SHOW DEVICE command, the system displays information about the device you specified. If you use certain qualifiers with SHOW DEVICES, information is displayed about those devices that currently have volumes mounted or that have been allocated to processes. Refer to the OpenVMS DCL Dictionary for a list of qualifiers that can be used with the SHOW DEVICES command.
The following examples use the SHOW DEVICES command. Device protection is RWPL (read, write, physical, logical).
The SHOW DEVICES/FULL examples include both volume protection and device protection. In addition, if a volume has a protected subsystem enabled, it also appears in the display.
$ SHOW DEVICES Device Device Error Volume Free Trans Mnt Name Status Count Label Blocks Count Cnt $11$DUA9: (SNAP) Online 0 $11$DUA10: (SNAP) Mounted 2 PAGE 83643 3 26 $11$DUA13: (SNAP) Mounted 0 WORK1 192297 36 26 $11$DUA23: (SNAP) Online 0 $11$DUA24: (SNAP) Mounted 0 MONITORPLUS 776808 86 26 DAD0: (TULIP) Online 0 DAD9: (TULIP) Online 0 DAD44: (TULIP) Mounted wrtlck 0 CDBIN06JUL23 97947 1 1 ROSE$MUA0: Online 0 LAVNDR$MUA0: Online 0 TULIP$MUA1: Online 0 IRIS$MUA1: HostUnavailable 0 OPA0: Online 0 DBA0: Offline 0 FTA0: Offline 0 FTA239: Online 0 LTA0: Offline 0 LTA3401: Online spooled 0 LTA3402: Online spooled 0 RTA0: Offline 0 RTA1: Mounted 1 RTA2: Mounted 0 RTB0: Offline 0 TXA0: Online 0 TXA1: Online 0 XT0: Offline 0
$ SHOW DEVICES/FULL DAD42: Disk DAD42: (IRIS), device type RRD40, is online, mounted, software write- locked, file-oriented device, shareable, error logging is enabled. Error count 0 Operations completed 146 Owner process "" Owner UIC [SYSTEM] Owner process ID 00000000 Dev Prot S:RWPL,O:RWPL,G:RWPL,W:RWPL Reference count 1 Default buffer size 512 Total blocks 1218000 Sectors per track 4 Total cylinders 50750 Tracks per cylinder 6 Allocation class 11 Volume label "CDBIN06JUL21" Relative volume number 0 Cluster size 3 Transaction count 1 Free blocks 15153 Maximum files allowed 152083 Extend quantity 5 Mount count 1 Mount status System Cache name "_$11$DUA21:XQPCACHE" Extent cache size 64 Maximum blocks in extent cache 1515 File ID cache size 64 Blocks currently in extent cache 0 Quota cache size 0 Maximum buffers in FCP cache 1330 Volume status: ODS-2, subject to mount verification, file high-water marking, write-through caching enabled.
$ SHOW DEVICES/FULL DU Disk $11$DUA8: (SNAP), device type RA90, is online, mounted, file-oriented device, shareable, served to cluster via MSCP Server, error logging is enabled. Error count 0 Operations completed 334 Owner process "" Owner UIC [SYSTEM] Owner process ID 00000000 Dev Prot S:RWED,O:RWED,G:RWED,W:RWED Reference count 1 Default buffer size 512 Total blocks 2376153 Sectors per track 69 Total cylinders 2649 Tracks per cylinder 13 Host name "SNAP" Host type, avail HS70, yes Alternate host name "DRAGON" Alt. type, avail HS70, yes Allocation class 11 Volume label "DOCRES" Relative volume number 0 Cluster size 3 Transaction count 1 Free blocks 1211964 Maximum files allowed 297019 Extend quantity 5 Mount count 26 Mount status System Cache name "_$11$DUA21:XQPCACHE" Extent cache size 64 Maximum blocks in extent cache 121196 File ID cache size 64 Blocks currently in extent cache 0 Quota cache size 0 Maximum buffers in FCP cache 1330 Volume status: ODS-2, subject to mount verification, write-through caching enabled. Volume is also mounted on TANGO, WHOCRS, SIRE, BARKIN, SALT, SNEEZY, ARTIC, HEMMING, ROCKUP, HUTZPA, HAPPY, TOSIR, CHAIN, BOXER, SPELLN, WAYLND, ADAM, PINE, MONA, PALMER, WLDWND, ERICA, VALLEY. Disk $11$DUA9: (SNAP), device type RA90, is online, file-oriented device, shareable, served to cluster via MSCP Server, error logging is enabled. Error count 0 Operations completed 544 Owner process "" Owner UIC [SYSTEM] Owner process ID 00000000 Dev Prot S:RWED,O:RWED,G:RWED,W:RWED Reference count 0 Default buffer size 512 Total blocks 2376153 Sectors per track 69 Total cylinders 2649 Tracks per cylinder 13 Host name "SNAP" Host type, avail HS70, yes Alternate host name "DRAGON" Alt. type, avail HS70, yes Allocation class 11
If a volume was improperly dismounted, it may require rebuilding. Volumes are improperly dismounted when, for example, the system crashes. Use the /REBUILD_STATUS qualifier with the SHOW DEVICES command to determine if a volume needs rebuilding. Do not use the /REBUILD_STATUS qualifier with any other SHOW DEVICES qualifiers, except the /OUTPUT qualifier.
For each volume, SHOW DEVICES/REBUILD_STATUS returns one of the following values:
|No||Rebuild not needed|
|Not applicable||The volume cannot be rebuilt; the volume is not a disk or the volume is write-locked|
|Information unavailable||Rebuild information is not available; the volume is not mounted or mount verification is taking place|
Do either of the following steps to rebuild a volume:
Device EMUL$DKB500, in the following example, needs rebuilding.
$ SHOW DEVICES/REBUILD_STATUS Device Name Rebuild needed? ADU15$DKA300: Information unavailable EDIV$DKA300: Information unavailable EMUL$DKB200: No EMUL$DKB300: No EMUL$DKB500: Yes FTA0: Not applicable OPA0: Not applicable
You can use the SHOW DEVICE command to retrieve information about ISO 9660-formatted devices. The following example illustrates the use of the SHOW DEVICES/FULL command to obtain information about an ISO 9660-formatted CD-ROM. Note that the ACP process name is given and that the volume status is listed as ISO 9660. The display tells the user that the mounted members of the volume set are relative volume numbers (RVN) 1, 64, and 65535.
$ SHOW DEVICE DKA1/FULL
Disk $1$DKA1: (VMSRMS), device type RRD40, is online, allocated, deallocate on dismount, mounted, software write-locked, file-oriented device, shareable, served to cluster via MSCP Server. Error count 0 Operations completed 9 Owner process "_FTA5:" Owner UIC [FIN,USER] Owner process ID 20200066 Dev Prot S:RWPL,O:RWPL,G:R,W Reference count 2 Default buffer size 512 Total blocks 256 Sectors per track 32 Total cylinders 1 Tracks per cylinder 8 Allocation class 1 Volume label "VOLUME_1" Relative volume number 1 Cluster size 0 Transaction count 1 Free blocks 0 Maximum files allowed 0 Extend quantity 0 Mount count 1 Mount status Process ACP process name "DKA1CACP" Volume status: ISO 9660. Members of this volume set are $1$DKA1: (rvn 1), $1$DKA7: (rvn 64), $1$DKA16: (rvn 65535).
You can set security protection characteristics on devices using the following DCL commands:
For more information about these commands, refer to the OpenVMS DCL Dictionary.
By default, allocating a tape or disk device requires VOLPRO privilege. However, you can grant access to unprivileged users in two ways:
To grant access to a specific device, use the SET SECURITY command as shown in either of the following examples:
$ SET SECURITY/CLASS=DEVICE DKA300/PROT=W:RWC
This example grants world read, write, and control access for the device DKA300.
$ SET SECURITY/CLASS=DEVICE DKA300/ACL=(IDENTIFIER=CHEKOV, ACCESS=CONTROL)
This example grants control access for the device DKA300 to users with
the CHEKOV identifier.
8.3.2 Granting Access to All Devices
Use the following method to grant a specified class of users access to all devices:
$ SET SECURITY/CLASS=SECURITY_CLASS/PROFILE=TEMPLATE=DISK - _$ DEVICE/ACL=(ID=CHEKOV, ACCESS=R+W+D+C)
The system uses a software component called a device driver to control I/O operations for a particular device type. For a device to function on a system, the device must be connected, and the device driver must be loaded into memory.
The AUTOCONFIGURE command connects all devices physically attached to the system and loads their device drivers. Using AUTOCONFIGURE saves effort and reduces the possibility of error.
On VAX systems, the following commands in STARTUP.COM perform autoconfiguration:
$ SYSGEN := $SYSGEN $ SYSGEN AUTOCONFIGURE ALL
On Alpha systems, the following commands in STARTUP.COM perform autoconfiguration:
$ SYSMAN := $SYSMAN $ SYSMAN IO AUTOCONFIGURE
For this discussion, an HSx device can be an HSC, HSG, or HSJ device.
In general, when you add a SCSI disk or tape, you should shut down the system and power down the machine before you connect the device. When you power the system up, OpenVMS automatically configures the device.
Some controllers, such as the HSZ series, allow you to quiesce the SCSI bus and then add or remove a device. When you add a device, you must rerun AUTOCONFIGURE. Note however, that for served storage devices, your system must be running the CONFIGURE process.
In certain cases, you might want to suppress autoconfiguration of devices in system startup. See the following sections for more details.
|Topic||For More Information|
|+ Manually connecting devices and loading drivers||Section 8.4.1|
|++ Manually connecting devices and loading drivers||Section 8.4.2|
|Suppressing autoconfiguration||Section 8.4.3|
On VAX systems, whenever possible, use the SYSGEN command AUTOCONFIGURE to connect standard devices and load device drivers. However, in some cases, such as connecting non-Compaq devices, you cannot use the AUTOCONFIGURE command. In addition, AUTOCONFIGURE does not connect the following devices or load their device drivers:
In addition to these devices, other devices and drivers might be present that AUTOCONFIGURE does not connect and load. On VAX systems, use the System Generation utility (SYSGEN) to manually connect devices and load device drivers.
For more information, refer to the SYSGEN section of the OpenVMS System Management Utilities Reference Manual and the OpenVMS VAX Device Support Manual. (These manuals have been archived but are available on the OpenVMS Documentation CD-ROM.)
Use extreme care when issuing SYSGEN CONNECT and LOAD commands because the system does little error checking. An incorrect vector address or misspelled device name, for example, will damage the I/O database and could cause the system to fail.
To manually connect special devices each time the system starts up, add these SYSGEN commands to the site-specific startup command procedure SYCONFIG.COM. For more information, see Section 18.104.22.168.
To connect the console storage device on VAX systems, use the following CONNECT command:
$ RUN SYS$SYSTEM:SYSGEN SYSGEN> CONNECT CONSOLE SYSGEN> EXIT
This command may be different on some platforms. See the VAX installation and upgrade manual for information about the console commands available for your specific platform.
|@SYS$STARTUP:TCPIP$STARTUP||! TCP/IP Services|
|@SYS$STARTUP:STARTNET||! DECnet Phase IV|
For information about connecting virtual terminals and loading their driver, see Section 8.6.2.
For information about configuring virtual terminals in conjunction with TCP/IP Services Telnet, see Compaq TCP/IP Services for OpenVMS Management.
A Compaq-supplied driver named SYS$SYSTEM:CONINTERR.EXE permits real-time processes to connect to interrupt vectors for quick response to and special handling of real-time events. The driver is not associated with any specific device type. Refer to the OpenVMS VAX Device Support Manual for more information. (This manual has been archived but is available on the OpenVMS Documentation CD-ROM.)
The commands in the following example autoconfigure the devices attached to a VAX system, and connect the console block storage device and the network software device:
$ RUN SYS$SYSTEM:SYSGEN SYSGEN> AUTOCONFIGURE ALL SYSGEN> CONNECT CONSOLE SYSGEN> EXIT $ @SYS$MANAGER:STARTNET