Originally posted by: SystemAdmin

my OS: 5.3L on p550 with 4 hds.

1. sysdumpdev -e

0453-041 Estimated dump size in bytes: 299053875

1. sysdumpdev -l

primary /dev/hd6
secondary /dev/sysdumpnull
copy directory /oracleapp/tmp/dump
forced copy flag TRUE
always allow dump FALSE
dump compression ON
First I have no idea how the "copy directory" is assigned to /oracleapp/tmp/dump, which does not exist. And the errpt shows daily message about "the copy directory is too small". If I create a hd7 for the dump, how do I create the /hd7 without the mounting pt?
How do I alter the "copy directoy" to other leglimate directory?
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Originally posted by: orphy

I'm sure someone (or something) must have changed the copy directory.
You typically set it to /var/adm/ras (with sysdumpdev -d or -D).

Why would you want to create a "/hd7" without a mount point? If you are
trying to fix the copy directory, you can either change it to /var/adm/ras
and dump up the size for /var or create another FS and point the copy directory
to it (with sysdumpdev -d or -D) but be sure to put it in rootvg.
Orphy
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Originally posted by: SystemAdmin

OK. I misread from other article about solving this problem by creating a /dev/hd7. So now I mounted the /hd7 at a new FS point and sysdumpdev -D on it. Is possible that I just increase, extendlv, the size of /var that where the /var/adm/ras is located to cover the value of the sysdumpdev -e?
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Originally posted by: orphy

Yes but "chfs -a size=... /var" will do. There's no need to extendlv
unless you care about which hdisk the PPs live.
Orphy
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Originally posted by: SystemAdmin

Great. Thanks.
You actually raised my other curiosity. Why the /var/adm/ras as the default place for copy directory? Why not the /var/adm/ras/platform? which OS 5.3L created it (/dev/fwdump) by default. What are the purpose of these two FSs? I found many sites talking about how to use them, but none of them said why.
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Originally posted by: orphy

Curiosity could be harmful...

I believe /var/.../platform only existed since 5.2 but the whole sysdumpdev
thing was there before that. My guess is they never bothered (or had the
need) to change it. Why would you change more codes and potentially causing
more APARs when you have a tight schedule to meet?

/var/adm/ras/ is created when you first load AIX and you really shouldn't
have to use or worry about it. It's for holding certain log files and
debugging info.
Orphy
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Originally posted by: SystemAdmin

Scientist was my last life. Therefore curiosity is in my vein. I like to know why. At least the computer will not explore, like I tried on some chemistry curiosity before. Thanks again.
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Originally posted by: SystemAdmin

Well, you could be right. This morning this machine went dead with SRC code 11002630 in the front panel. (see my other inquire) I hope it was not because of this change of sysdump.
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Originally posted by: orphy

I highly doubt the change caused this problem. I've made this type of
change many times on many different boxes before and have yet to cause
any downtime.

Have you contacted Support on that LED code? You could also try booting
up from the diag CD and see if it sees any problem.
Orphy
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