User`s guide

System Troubleshooting and Diagnostics
5.2 Product Fault Management and Symptom-Directed Diagnosis
Example 5–3 (Cont.) Error Log Entry Indicating Uncorrectable ECC Error
MEMCON3 8B000003
64 bit mode
Base address valid
RAM size = 1MB
base address = 0B(X)
Example 5–4 SHOW MEMORY Display Under the OpenVMS Operating
System
$ SHOW MEMORY
System Memory Resources on 21-FEB-1992 05:58:52.58
Physical Memory Usage (pages): Total Free In Use Modified
Main Memory (128.00Mb) 262144 224527 28759 8858
Bad Pages Total Dynamic I/O Errors Static
1100
Slot Usage (slots): Total Free Resident Swapped
Process Entry Slots 360 347 13 0
Balance Set Slots 324 313 11 0
Fixed-Size Pool Areas (packets): Total Free In Use Size
Small Packet (SRP) List 3067 2724 343 128
I/O Request Packet (IRP) List 2263 2070 193 176
Large Packet (LRP) List 87 61 26 1856
Dynamic Memory Usage (bytes): Total Free In Use Largest
Nonpaged Dynamic Memory 1037824 503920 533904 473184
Paged Dynamic Memory 1468416 561584 906832 560624
Paging File Usage (pages): Free Reservable Total
DISK$VMS054-0:[SYS0.SYSEXE]PAGEFILE.SYS 300000 266070 300000
Of the physical pages in use, 24120 pages are permanently allocated to OpenVMS.
$
Using the OpenVMS command ANALYZE/SYSTEM, you can associate a page
that had been replaced (Bad Pages in SHOW MEMORY display) with the
physical address in memory.
In Example 5–5, 5ffb8 (under the Page Frame Number (PFN) column) is
identified as the single page that has been replaced. The command EVAL 5ffb8
* 200 converts the PFN to a physical page address. The result is 0bff7000,
which is the MEAR address translated in Example 5–3. (Bits <8:0> of the
addresses may differ since the page address from EVAL always shows bits
<8:0> as 0.)
System Troubleshooting and Diagnostics 5–21