- ATTACH
No ATTACH or SELECT command is necessary to run the VAX Memory user
mode test. Simply load the program and start it.
- HELP
The VAX Memory user mode test (EVKAM) is a program designed to test
all memory subsystems on any VAX processor. There are two tests; only
test 1 runs by default.
Test 1 performs read operations to all existing physical memory. Test
2 locks the process working set in memory, and tests it by writing 7
data patterns. Failing modules are reported in both tests.
The default test takes between 30 seconds and 1 minute per megabyte of
memory tested, depending on processor type and current system load.
For more information on how to select particular tests, type HELP EVKAM
SECTIONS.
- SECTIONS
The program consists of three sections. For information on all
sections and which tests they run, type HELP EVKAM SECTIONS.
- DEFAULT
This section will execute test 1 ONLY.
- MEMFT
This section will execute test 1 ONLY.
- CONFT
This section will execute test 2 ONLY.
- DEVICE
Version 6.1 of this program runs on the VAX-11/780, VAX-11/785,
VAX-11/782, VAX-11/750 and VAX-11/730. All currently available memory
subsystems for these processors are supported. New processor or memory
types will be supported in future maintenance updates.
Type HELP EVKAM DEVICE * for a list of all supported memory subsystems;
remember that no attach or select commands are necessary for any memory
device.
- MS780
4K, 16K, 64K and 256K MOS arrays are supported, both in interleaved and
non-interleaved mode. Interleaved memory is tested twice.
Note: on the VAX-11/782, the local memory on the attached (secondary)
processor cannot be tested; all remaining memory is tested.
- MA780
16K MOS Multi-Port memory is supported.
- MS750
16K, 64K an 256K MOS arrays are supported; half-populated and fully
populated modules are supported with all array types.
- MS730
16K and 64K MOS arrays are supported; half-populated and fully
populated modules are supported with both array types.
- MS820
2 Mbyte and 4Mbyte MOS arrays are supported.
- EVENT
Event Flag Function
---------- ------------------------------------------------------
1 when set, enables reporting (and tallying) Correctable
Read Data (single-bit) failures.
10 when set, enables reporting amount of memory present;
the entire SBI is sized on 11/78x processors.
11 when set, enables operator notification as the program
reaches megabyte boundaries while executing test 1.
12 when set, enables operator notification as the program
begins each test pattern while executing test 2.
- SUMMARY
By default, the summary section will provide a tally of all Read Data
Substitute errors and unknown errors detected per module. If Event
Flag 1 is set prior to program execution, a tally of Correctable Read
Data errors detected per module will be provided as well.
If the diagnostic is unable to access the error log mailbox, the user
is notified and error reporting is done using the ANAYLZE/ERROR
utility. When execution completes an error summary may be found in
SYS$ERRORLOG:ERRLOG.LIS.