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vmur - Work with z/VM spool file queues

VMUR(8) System Manager's Manual VMUR(8)

NAME

vmur - Work with z/VM spool file queues

SYNOPSIS

vmur [OPTIONS]
 
vmur vmur_command [command_options] [command_args]

DESCRIPTION

The vmur program allows to read, create, list, purge, or order files on the z/VM spool files queues (RDR, PUN, and PRT).
 
vmur supports the following commands:
- receive:
Read a file from the reader queue
- punch:
Create a file on the punch queue
- print:
Create a file on the print queue
- list:
List one or all files on a spool file queue
- purge:
Purge one or all files on a spool file queue
- order:
Position a file at the top of a spool file queue
The vmur program requires the vmcp kernel module as prerequisite. For the receive, punch, and print commands the vmur kernel module is also required, and the corresponding z/VM virtual unit record devices (in most cases 000c as reader, 000d as punch, and 000e as printer) must be set online. See chccwdev(8) for setting devices online or offline.

OPTIONS

-h or --help
Print help information, then exit.
-v or --version
Print version information, then exit.
All other options are command specific and will be discussed below in the respective command context.

receive

Read file from reader queue

Synopsis:
receive [-fH] [-d dev_node] [-C class] [-t | -b sep.pad | -c] spoolid [-O | outfile]
Minimum abbreviation: re
Use receive when you want to read a file from the z/VM reader queue. The file to be read is identified by its spoolid, a 4-digit decimal number. Use the 'vmur list' command to display information about files in the z/VM reader queue.

receive options

The following command options are supported by receive:
-f or --force
Specifies that outfile is to be overwritten without displaying any confirmation message.
-H or --hold
Specifies that the reader file to be received shall remain in the reader queue after processing. If omitted, the reader file is purged.
-C or --class
Specifies the spool file class to match particular reader files. The class value is a 1-character alphanumeric field whose values can be A through Z, 0 through 9, or asterisk (*).
 
If you omit this option, the asterisk (*) is used to receive files of any class.
-d or --device
Specifies the device node of the virtual reader device. If omitted, /dev/vmrdr-0.0.000c is assumed.
-t or --text
Specifies that a text file requiring EBCDIC-to-ASCII conversion is to be received. Character sets IBM037 and ISO-8859-1 are used for the conversion. An ASCII line feed character (0x0a) is inserted for each 80-byte input record read from the z/VM reader. Trailing EBCDIC blanks (0x40) in the input records are stripped.
-b or --blocked
Specifies that the file is to be received using blocked mode. As parameter for the -b option, the hex codes of a separator byte and a padding byte have to be specified. The parameter has the following format: 0xSS,0xPP
 
All trailing padding bytes are removed from the end of each record read from the virtual reader and the separator byte is inserted afterwards. The receive function's output can be piped to iconv(1) using the appropriate character sets, for example:
# vmur re 7 -b 0x25,0x40 -O | iconv -f EBCDIC-US -t ISO-8859-1 > file
-c or --convert
Specifies to convert the VMDUMP spool file into a format appropriate for further analysis with crash or lcrash.
-O or --stdout
Specifies that the reader file's contents are written to standard output.

receive arguments

The following command arguments are supported by receive:
spoolid
Denotes the spoolid, which identifies a z/VM spool file.
 
spoolid is mandatory and must be a decimal number in the range 0-9999.
outfile
specifies the name of the output file to receive the reader file's data.
 
If both outfile and --stdout are omitted, name and type of the spool file to be received (see NAME and TYPE columns in 'vmur list' output) are taken to build output file name name.type. If the spool file to be received is an unnamed file, an error message is issued.

receive example

Receive the z/VM console of your Linux guest machine. In the 'vmur list' output this is an unnamed file with identifier CON in the right part of the CLASS column. Assume its spoolid is 1234.
# vmur re -t 1234 linux_console

punch or print

Write file to punch or printer queue

Synopsis:
punch|print [-fr] [-d dev_node] [-C class] [--form form] [--dest dest] [--dist distcode] [-t | -b sep.pad] [-u user] [-n node]
 

[-N name.type] [file]
Minimum abbreviation: pun/pr
Use punch/print when you want to write a file to the z/VM punch or printer queue. Specify the --rdr option if you want the file to be transferred to the z/VM reader queue.

punch/print options

The following command options are supported by punch/print:
-f or --force
Specifies to automatically convert Linux input file name (or <name>.<type> as specified with --name) to a valid spool file name and type without any error message. Invalid characters are replaced by _(underscore) and both <name> and <type> are truncated to a length of maximal 8 characters.
-r or --rdr
Specifies that the punch or printer file is to be transferred to a reader.
-d or --device
Specifies the device node of the virtual punch or printer device. If omitted, /dev/vmpun-0.0.000d is assumed for punch, and /dev/vmprt-0.0.000e for printer.
-C or --class
Specifies the spool file class assigned to the spool files created on this punch or print. The class value is a 1-character alphanumeric field whose values can be A through Z and 0 through 9.
--form
Specifies the form to be assigned to the spool files on this punch or print. The value is a 1- to 8-character value.
--dest
Specifies the destination value to be assigned to the spool files on this punch or print. The value is a 1- to 8-character value.
 
If the destination value has not been changed otherwise, for example, by a CP SPOOL command, the default is OFF. OFF is the initial setting of the destination value for virtual devices. Specify ANY to indicate that the resulting spool file can be processed on any CP output device that meets other selection criteria, regardless of the device's DEST setting.
--dist
Specifies the distribution code to be assigned to the spool files on this punch or print. The distribution code, distcode, is a 1- to 8-character value and appears on the separator page.
 
If OFF or an asterisk (*) is specified, the distribution code of the spool file is reset to the distribution code in the system directory.
-t or --text
specifies to punch or print the input file as text file, that is perform ASCII-to-EBCDIC conversion (using character sets ISO-8859-1 and IBM037) and pad each input line with trailing blanks to fill up the unit device record. The unit device record length is 80 for a punch and 132 for a printer. If an input line length exceeds 80 or 132 for punch or print, respectively, an error message is issued.
-b or --blocked
Specifies that the file is to be written using blocked mode. As parameter for the -b option, the hex codes of a separator byte and a padding byte have to be specified. The parameter has the following format: 0xSS,0xPP
 
The separator byte identifies the line end character of the file to punch or print. If a line has less characters than the record length of the used unit record device, the residual of the record is filled up with the specified padding byte. If a line exceeds the record length, an error is printed.
 
iconv(1) output can be piped to punch or print, for example:
# iconv xyz -f ISO-8859-1 -t EBCDIC-US | vmur pun -b 0x25,0x40 -N abc
-u or --user
Specifies the z/VM user ID to whose reader the data is to be transferred. The --user operand must adhere to z/VM user naming conventions. If a local user is specified (that is the --node option is omitted), the user name is validated against the CP directory.
 
The user option is only valid, if the -r option has been specified. If user is omitted, the data is transferred to your own machine's reader.
-n or --node
Specifies the z/VM node ID of a remote z/VM system to which the data is to be transferred. RSCS (Remote Spooling Communications Subsystem) must be installed on the z/VM systems and the specified node ID must be defined in the RSCS machine's configuration file. The node option is only valid, if the -u option has been specified. If node is omitted, the data is transferred to the specified user at your local z/VM system.
-N or --name
Specifies a name and, optionally, a type for the z/VM spool file to be created by the punch or print function (see NAME and TYPE columns in 'vmur list' output).
 
In the following situations the spool file type is ignored and only a spool file name is set:
- if the string specified in --name does not contain any period delimiter.
- if the only period appears at the very first beginning of string.
- if a period appears at the very end of string and is not preceded by another period.
If --name is omitted:
- The Linux input file name (if any) is taken instead and an error message is issued, if it does not comply to z/VM file name rules (e.g. longer than 8 chars).
- If the Linux input file name is also omitted (that is data is read from standard input), then an error message is issued.

punch/print arguments

The following command arguments are supported by punch/print:
file
Specifies the Linux file data to be punched or printed. If file is omitted, the data is read from standard input.

punch/print example

Punch parmfile and transfer it to the reader queue.
$ vmur pun -r /boot/parmfile

list

List file(s) on spool file queue

Synopsis:
list [-q queue] [spoolid]
Minimum abbreviation: li
Use list when you want to display information about files on a z/VM spool file queue.

list options

The following command option is supported by list:
-q or --queue
Specifies the z/VM spool file queue to be listed. Possible values are rdr (reader file queue), pun (punch file queue), and prt (printer file queue).
 
If omitted, the reader file queue is assumed.

list arguments

The following command argument is supported by list:
spoolid
Identifies the z/VM spool file to be listed. If omitted, all spool files on the specified queue are listed

purge

Purge file(s) on spool file queue

Synopsis:
purge [-f] [-q queue] [-C class] [--form form] [--dest dest] [spoolid]
Minimum abbreviation: pur
Use purge to remove files on a z/VM spool file queue. Select the spool files to remove with the class, form, or dest options and the spoolid argument. If these are omitted, all spool files on the specified queue are purged.

purge options

The following command options are supported by purge:
-f or --force
Specifies to purge the specified spool file(s) without displaying any confirmation message.
-q or --queue
Specifies which spool file queue contains the file(s) that you want to purge. Possible values are rdr (reader file queue), pun (punch file queue), and prt (printer file queue).
 
If omitted, the reader file queue is assumed.
-C or --class
Specifies a spool file class. All the files of the specified class are purged. The class value is a 1-character alphanumeric field whose values ca be A through Z, 0 through 9.
--form
Specifies a form name. All the files with the specified form name are purged. The form name is a 1- to 8-character value.
--dest
Specifies a destination value. All the files with the specified destination value are purged. The destination is a 1- to 8-character value.

purge arguments

The following command argument is supported by purge:
spoolid
Identifies the z/VM spool file to be purged.

order

Order file on spool file queue

Synopsis:
list [-q queue] spoolid
Minimum abbreviation: or
Use order when you want to place a spool file on top of a z/VM spool file queue.

order options

The following command option is supported by order:
-q or --queue
Specifies the z/VM spool file queue you want to order. Possible values are rdr (reader file queue), pun (punch file queue), and prt (printer file queue).
 
If omitted, the reader file queue is assumed.

order arguments

The following command argument is supported by order:
spoolid
Identifies the z/VM spool file to be ordered.

EXAMPLES

Log and read the z/VM console from Linux

1.
Start z/VM console spooling by issuing:
 

# vmcp sp cons start
    

2.
Produce output to the z/VM console (for example, with CP TRACE)
3.
Close the console file and transfer it to the reader queue, find the spool ID behind the FILE keyword in the corresponding CP message. In the example below, the spool ID is 398:
 

# vmcp sp cons clo \* rdr
RDR FILE 0398 SENT FROM LINUX025 CON WAS 0398 RECS 1872 
    

4.
Read and save the spool file on the Linux file system in the current working directory:
 

# vmur re -t 398 linux_cons
    

Prepare z/VM reader to IPL Linux

1.
Send parmfile to the z/VM punch queue and transfer it to the reader queue:
 

# vmur pun -r /boot/parmfile
Reader file with spoolid 0465 created.
    

2.
Send the Linux kernel image to the z/VM punch queue and transfer it to reader queue:
 

# vmur pun -r /boot/vmlinuz -N image
Reader file with spoolid 0466 created.
    

3.
Move the Linux kernel image to the first and parmfile to the second position in the reader queue:
 

# vmur or 465
# vmur or 466
    

4.
Prepare re-IPL from the z/VM reader and reboot:
 

# chreipl ccw 0.0.000c
# reboot
    

SEE ALSO

chccwdev(8), vmcp(8), iconv(1)
 
Linux on System z - Device Drivers, Features, and Commands
January 2015 s390-tools