SUMMARY: optimization changed from TIME to SPACE?????

From: Marina Daniels (Marina.Daniels@ccd.tas.gov.au)
Date: Tue Aug 27 1996 - 00:52:22 CDT


Thank you to everyone that replied!
Marina

*****ORIGINAL QUESTION

Does anybody know what this line in /var/adm/messages means?

"Aug 27 09:56:07 merlin unix: NOTICE: /map5r1: optimization changed from TIME to
SPACE"

The system is running solaris 2.3
drwxr-xr-x 17 root other 1024 Mar 17 1995 /map5r1
from "df -ka"
/dev/dsk/c1t0d0s6 218743 116868 80005 59% /map5r1

******ANSWERS

FROM Reto Lichtensteiger

Yeah, I see it a lot on my news server <g>
The Berkeley FS uses a space-wasteful algorithm to write data blocks
rapidly to disk -- UNTIL the disk reaches a certain level (you can set it
with makefs, newfs or tunefs -- see the makefs man page for more
details), then it tries to make best use of space, regardless of the time
it takes to reorder blocks ...

Others also suggested
take a look at "man newfs" and look at the -m and -o options.

Thanks again to everybody



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