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Of course I'll get back after we complete the test. It might take me a few weeks before we get there but I will post the results. The discussions in this forum are very very helpul. Thanks again for...

Thanks Guys I really appreciate your valuable comments. The reason behind my posting was because we had a while ago an IBM expert doing some work with the Midrange/Storage team and according to him...

Hi Guys,

I would like to hear some comments about enabling Interpolicy Maximum at the LV level. I heard that when using PP striping on AIX the I/O performance get a big boost. Also the...

Furthermore to this topic so basically for a Warehouse Database server with databases bigger than 500 Gigs and where a lot of large sequential reads are necessary CIO won't add any benefit to it in...

Thanks but I have read that document already. Sometimes is better hear from someone else's experiences. I thought I would be worthwhile asking.

Hi Guys,

I wonder if after enabling CIO/DIO at the filesystem level and assuming that CIO/DIO will bypass the JFS2 read ahead available when not using CIO/DIO my questionis what parameters I...

Actually the error I got in the first place was due to a script that modifies the passwd and shadow files and then it takes copies and also rename the current files and the new ones but something...

Hi Guys,

I have a database server where we run AIX 5.3 on a power5 box and we just turned on CIO (concurrent I/O) for the database filesystems. Now my assumption is that enabling CIO the database...

Hi Guys,

I have a database server where we run AIX 5.3 on a power5 box and we just turned on CIO (concurrent I/O) for the database filesystems. Now my assumption is that enabling CIO the database...

actually don't worry about this one. I managed to fix the problem. thanks.

Hi Guys,

I wonder how I can login into a linux system without having the passwd file. I was testing a script that unfortunately renamed my passwd file so now everytime I try to login on that...

Hi Guys,

I wonder whether is possible to merge two files using awk. I have two files one with 7 columns and another one with 9 columns and the first column on both files is identical so will be...

Hi Jim,

I have a similar requirement which is basically to detect whether a file ie being locked before I can go and modify it. Is there any possible and simple way that I can check that the file...

hi Guys,

I just wondering how I can check and ensure a file is not locked by another process. I need to modify a file using sed but I need to ensure that is not being modified by another process...

Hi ,

Yes the grep is returning the PPID's and then I execute a ps v PPID as you can see below:

MEM=15244
+ + bc
+ echo 1567008 + 15244
MEM2=1582252
+ + ps v 1847476
+ grep -i db2
+...

hi ,

Thanks for your reply. For some reason still doesn't work for me. I took some parts of your command to at least get it to work using :

MEM=`ps v $PPID | grep -i db2| awk '{ if ($7 == "")...

Hi Guys,


I need to set the value of $7 to zero in case $7 is NULL. I've tried the below command but doesn't work. Any ideas. thanks guys.


MEM=`ps v $PPID| grep -i db2 | grep -v grep| awk...

hi Guys,

Just wondering whether if I execute the ps v 1818740 and I get the below ouput what column should I use If I need to calculate how much real memory (private) is use by those process....

hi ,

If i use the ps v 1818740 command I get the below output:

PID TTY STAT TIME PGIN SIZE RSS LIM TSIZ TRS %CPU %MEM COMMAND
1818740 - A 0:00 60 1976 1064 ...

Hi Guys,

I wonder what would be the best way to determine how much memory is in use on any given time by the database processes. I thought about using ipcs -m command but I wonder if there any...

Actually this is all what I've got.

Hi there,

The below is the output of vmstat and iostat from the last ocurrence of this problem.

vmstat

r b avm fre re pi po fr sr cy in sy cs us sy id wa pc ec ...

Hi Guys,

At the moment I'm experiencing a problem where one of the filesystems is being locked up because it looks like is running out of buffers and according to IBM a workaround should be...

Hi Guys,

I'm trying to install slackware 10.2 on a on compaq laptop with Sansung
HM121HI hard drive but I wonder what kernel should I use so it can recognize the had disk. Initially I've tried...

thanks mate. It works fine. thanks.