| T.R | Title | User | Personal
Name | Date | Lines |
|---|
| 5630.1 | do you need the full dump? | CERN::HOBBS | Congrats to the Ignoble Peace Prize winner! (http://www.eecs.harvard.edu/ig_nobel) | Sat Feb 01 1997 22:42 | 4 |
| I normally keep a file of a few megabytes for the error dumps, and large
page files on other disks.
-cw
|
| 5630.2 | | TARKIN::LIN | Bill Lin | Sun Feb 02 1997 06:53 | 15 |
| re: .0 by RICKS::OPP
When I don't care about looking at crash dumps (which is most of the
time), I create a single page file on another partition. I usually use
a dedicated partition for the page file.
>> When I try to do so, I get a nasty warning that says the system will
>> not be able to write a crash dump
Seems like a pretty straight-forward warning to me. You make your own
tradeoffs...
Cheers,
/Bill
|
| 5630.3 | ?But why? | RICKS::OPP | | Sun Feb 02 1997 19:34 | 9 |
| RE: .2
But why does NT need the pagefile to write to the dump file?
Seems to me these should be separate and independent files that
are independently read and written. Some dependency of the arch-
itecture must be escaping me.
Greg
|
| 5630.4 | Same as VMS | JUGHED::JOHN | | Tue Feb 04 1997 09:02 | 3 |
| VMS (up until Version 7) also can only dunp to the system disk.
Ted
|
| 5630.5 | So, memory.dmp is superfluous?? | GREGOR::OPP | | Tue Feb 04 1997 09:56 | 12 |
| RE: .4
Ah, but OpenVMS hasn't required a page file on the system disk
for a long time. If I'm forced to use the page file for writing
a crash dump, then why do I need a "memory.dmp" file. Or, are you
saying that the NT system dump file can be placed on another par-
tition but the page file can not?
Thanks,
Greg
|
| 5630.6 | | TARKIN::LIN | Bill Lin | Tue Feb 04 1997 10:40 | 10 |
| re: .5 by GREGOR::OPP
Greg,
I have no real knowledge of how this works, but my observation is that
the memory.dmp file is created after the system comes back on-line
after a crash. Once the .dmp file is written, then presumably the
space in the page file can be used for paging.
/Bill
|
| 5630.7 | They are similat yet different. | JUGHED::JOHN | | Wed Feb 05 1997 07:42 | 14 |
| No I guess I was saying that it look to me that the pagefile is used to
dump to. Since dump needs to be on the system partition, If you move
the pagefile you just can't dump. So both NT and VMS require dumping to
the system disk, NT just does not allow you to seperated the dump from
page. This helps keep disk space needs down but hampers performace if
you want to maintain dumps.
On VMS you can put the pagefile somewhere else, but still need a dump
file on the system disk. i.e. 2 files.
VMS allows these to be seperate and hence not page to the system disk
yet still dump. This uses more disk space but improves performace by
not using the system disk for paging.
|
| 5630.8 | VMS options NT does not? provide | GREGOR::OPP | | Thu Feb 06 1997 05:47 | 20 |
| RE: VMS vs. NT
Yes, VMS only recently eliminated the requirement of placing
dump files on the system disk. However, VMS had a number of mecha-
nisms to manage dump files that I have not found yet with NT. Ones
that I recall are:
- In a cluster, you could create a single, common dump file
or many, node-specific dump files to suit your storage
space.
- SYSGEN allowed selection of dump style, full or partial.
- If you did *not* have a dump file, VMS would attempt to
dump to the page file.
IMHO, if NT is going to become a competitive, bet-your-business,
server operating system, then it will need to provide more flexible
selection of page file and dump file locations, too.
Greg
|