1 /ALL
/ALL (default)
Displays all available information, that is, information
displayed by the /FILES, /PHYSICAL_PAGES, /POOL, and /SLOTS
qualifiers.
2 /BITMAP
/BITMAP (Alpha/Integrity servers only)
Displays information about memory use by write bitmaps (WBM) used
with Host-Based Volume Shadowing (HBVS). If the system parameter
SHADOWING is set to 0, no information about bitmaps is displayed
because WBM is used only with HBVS.
Note that the memory consumption displayed by SHOW MEMORY is
often greater than that displayed by SHOW DEVICE /BITMAP, which
displays the exact size (in bytes) of the bitmap. The memory used
by a bitmap is allocated in units of pages; if a bitmap uses part
of a page of memory, the rest of that page is unavailable for
use.
3 /BUFFER_OBJECTS
/BUFFER_OBJECTS (Alpha/Integrity servers only)
Displays information about system resources used by buffer
objects.
4 /CACHE
/CACHE[=(keyword[,...])]
Displays information about the Virtual I/O Cache facility or
the Extended File Cache facility, depending on which is loaded.
The Cache facility information is displayed as part of the SHOW
MEMORY and SHOW MEMORY/CACHE/FULL commands.
If the Extended File Cache is loaded, you can specify the
following keywords and options:
VOLUME[=device] Requests display of volume-level statistics
for the specified volume(s). If no device
is specified, defaults to SYS$DISK. Device
specifications may be wildcarded; if so, the
device specification must be based on the
physical device name. Specify VOLUME=* to see
statistics for all volumes in cache.
FILE=filespec Requests display of file-level statistics for
the specified file(s) in cache. The filespec
must contain an explicit or implicit device
specification. The filespec may be wildcarded
according to RMS rules. Specify FILE=dev:*.*
to see statistics for all files in cache for a
device. Partially wild file specifications that
are satisfied by large numbers of files on disk
may incur significant processing overhead during
display. By default, both open and closed files
are displayed (use the OPEN and CLOSED keywords
to further restrict which files are displayed).
Note that this command may fail if you select a
large number of files for display. If you receive
an error message, reduce the number of selected
files and reissue the command.
TOPQIO[=n] Requests display of file-level statistics for
the n files in cache with the highest overall QIO
count (n defaults to 10).
TOPHITRATE[=n] Requests display of file-level statistics for the
n files in cache with the highest overall cache
hit rate (n defaults to 10).
OPEN Include only open files in the display
(default for TOPQIO and TOPHITRATE).
CLOSED Include only closed files in the
display.
5 /EXACT
Use with the /PAGE=SAVE and /SEARCH qualifiers to specify a
search string that must match the search string exactly and must
be enclosed with quotation marks (" ").
If you specify the /EXACT qualifier without the /SEARCH
qualifier, exact search mode is enabled when you set the search
string with the Find (E1) key.
6 /FILES
Displays information about the use of each paging and swapping
file currently installed.
7 /FULL
When used with /POOL, displays additional information about pool
area.
When used with /CACHE, displays additional information about the
file data cache that is loaded (either VIOC or XFC).
This qualifier is ignored unless the /CACHE or /POOL qualifier is
specified explicitly.
8 /GH_REGIONS
On Alpha, displays information about the granularity hint regions
(GHR) that have been established. For each of these regions,
information is displayed about the size of the region, the amount
of free memory, the amount of memory in use, and the amount of
memory released to OpenVMS from the region. The granularity hint
regions information is also displayed as part of SHOW MEMORY,
SHOW MEMORY/ALL, and SHOW MEMORY/FULL commands.
9 /HIGHLIGHT
/HIGHLIGHT[=keyword]
Use with the /PAGE=SAVE and /SEARCH qualifiers to specify the
type of highlighting you want when a search string is found. When
a string is found, the entire line is highlighted. You can use
the following keywords: BOLD, BLINK, REVERSE, and UNDERLINE. BOLD
is the default highlighting.
10 /OUTPUT
/OUTPUT[=filespec]
/NOOUTPUT
Controls where the output of the command is sent. If you do
not enter the qualifier, or if you enter the /OUTPUT qualifier
without a file specification, the output is sent to the current
process default output stream or device, identified by the
logical name SYS$OUTPUT.
If you enter the /OUTPUT qualifier with a partial file
specification (for example, specifying only a directory), SHOW
is the default file name and .LIS the default file type. If you
enter a file specification, it cannot include asterisk (*) and
the percent sign (%) wildcard characters.
If you enter the /NOOUTPUT qualifier, output is suppressed.
11 /PAGE
/PAGE[=keyword]
/NOPAGE (default)
Controls the display of memory information on the screen.
You can use the following keywords with the /PAGE qualifier:
CLEAR_SCREEN Clears the screen before each page is displayed.
SCROLL Displays information one line at a time.
SAVE[=n] Enables screen navigation of information, where n
is the number of pages to store.
The /PAGE=SAVE qualifier allows you to navigate through screens
of information. The /PAGE=SAVE qualifier stores up to 5 screens
of up to 255 columns of information. When you use the /PAGE=SAVE
qualifier, you can use the following keys to navigate through the
information:
Key Sequence Description
Up arrow key, Ctrl/B Scroll up one line.
Down arrow key Scroll down one line.
Left arrow key Scroll left one column.
Right arrow key Scroll right one column.
Find (E1) Specify a string to find when the
information is displayed.
Insert Here (E2) Scroll right one half screen.
Remove (E3) Scroll left one half screen.
Select (E4) Toggle 80/132 column mode.
Prev Screen (E5) Get the previous page of information.
Next Screen (E6), Get the next page of information.
Return, Enter, Space
F10, Ctrl/Z Exit. (Some utilities define these
differently.)
Help (F15) Display utility help text.
Do (F16) Toggle the display to oldest/newest
page.
Ctrl/W Refresh the display.
The /PAGE qualifier is not compatible with the /OUTPUT qualifier.
12 /PHYSICAL_PAGES
Displays information about the amount of physical memory and the
number of free and modified pages.
13 /POOL
Displays information about the usage of each dynamic memory
(pool) area, including the amount of free space and the size
of the largest contiguous block in each area.
14 /RESERVED
/RESERVED (Alpha/Integrity servers only)
Displays information about memory reservations.
15 /SEARCH
/SEARCH="string"
Use with the /PAGE=SAVE qualifier to specify a string that you
want to find in the information being displayed. Quotation marks
are required for the /SEARCH qualifier, if you include spaces in
the text string.
You can also dynamically change the search string by pressing the
Find key (E1) while the information is being displayed. Quotation
marks are not required for a dynamic search.
16 /SLOTS
Displays information about the availability of partition control
block (PCB) vector slots and balance slots.
17 /UNITS
/UNITS=keyword
Allows you to override the current default specified by SET
PROCESS/UNITS so that you can display memory in your choice of
blocks or bytes.
Keyword options are:
Option Description
BLOCKS Displays memory in blocks (equivalent to PAGES).
BYTES Displays memory in bytes.
PAGES Displays memory in page format (equivalent to
BLOCKS).
18 /WRAP
/WRAP
/NOWRAP (default)
Use with the /PAGE=SAVE qualifier to limit the number of columns
to the width of the screen and to wrap lines that extend beyond
the width of the screen to the next line.
The /NOWRAP qualifier extends lines beyond the width of the
screen and can be seen when you use the scrolling (left and
right) features provided by the /PAGE=SAVE qualifier.