In <3.0.3.32.19980302111230.0089fb10 AT popd.netcom DOT ca>, on
03/02/98
at 11:12 AM, Scott McCambly <mccambly AT NETCOM DOT CA> said:
>Hello everyone,
>There has been discussion about changes to the Expiration
>Processing in later versions of V2 and V3 releases of the
>server. I was hoping someone from Development/Support
>could give us an overview of exactly how Expiration works.
>For example, our current problem is that we have let
>expiration run for up to 5 days and it has never (recently)
>completed. Yesterday I stopped it at the following point:
>287,312 examined and 256,474 deleted. I immediately
>restarted it and the examined to deleted ratio as it
>progressed was about the same! Today after approximately 16
>hours the stats are: 97,778 examined and 97,075 deleted.
>Did it start over from the beginning or does it pick up
>from where it left off?
>Is there any way for me to query the total number of
>objects in my database so I can get an idea of how much is
>left to be examined?
>Is there any reason I should let it fully complete, or can
>I start and cancel expiration as required by my daily
>scheduled activities?
>Finally, do these stats seem low or normal? We have a 20GB
>database running on an RS/6000 J40 (4 CPU) with AIX 4.2.1
>and ADSM V3.1 (+latest fix), and by the way I just noticed
>our Cache Hit Pct is 96.45%
>Thanks very much,
>Scott.
>Scott McCambly
>AIX/NetView/ADSM Specialist - Unopsys Inc. Ottawa,
>Ontario, Canada (613)238-5620
This seems awfully slow. I run expire inventory once a
week. My adsm is on mvs, the adsm version is 2.1.0.13. The
db is 5.8 million pages (about 23 Gb). It ran in 5 hr, 23
min and expired 237,323 backups. This is pretty much how it
goes every week.
the version 2 message doesn't report 'object examined. The
cache hit ratio is 98.51, just a little better than yours
but not enough to account for the huge performance
difference.
To count the number of object, do a 'query occupancy',
capture the output and sum the number of files. I think you
should exclude the files in copypools. I have 31,000,000
files.
We are comparing apples and oranges as far as the hardware
is concerned, so I can't say if that alone would account for
the difference. I have an s/390 9672-r41 (1 processor, 45
mips) with escon channels to STK Iceberg dasd.
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Bill Colwell
Bill Colwell
Draper Lab
bcolwell AT draper DOT com
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