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Hello again,

Q1
The directory /tmp/vgdata is only created by a savevg (or mksysb) and is not in use during normal running. Not a problem to open volume groups, mounted filesystems etc.

Q2...

If you have an existing volume group that you want to recover the structure for before restoring the content, then your can use savevg and restvg

In our site, we have created an exclude file for...

Is this a valid use of the -e option of mklv?:

... -e x ...


You should also test for the success of mklv before proceeding to the next (crfs) command. That would save on unnecessary output...

prstat -a

Be aware that "swap" means slightly different concepts depending on which one of these commands you use.

swap -l -> on disk swap area

swap -s -> virtual memory usage, includes RAM.

swap -l
Shows you how swap is allocated and used.

swap -s
Allows you to monitor swap free space, for example.

Yes. [ -s mail_body ] condition is true when the file size is greater than zero.

For further reference check: Expressions used with if...

> mail_body means the output is redirected to a file named: mail_body

In the 2nd step, the if statement is used to check if the file size is greater than zero and send mail if true.

By the way...

You can simplify it a bit:
ps auxw | sort -r +2 | awk 'BEGIN{print "%CPU","USER"}/anonymous/&&$3>5.0{print $3,$1}' > mail_body

[ -s mail_body ] && mail -s "%CPU > 5.0" < mail_body