Re: High AS400 Storage

Running RTVDSKINF and RTVDIRINF regularly are good ideas. The problem is, they are not fine-grained enough to detect short-term spikes like the OP experienced. disk/HUNTER, Robot Space, and Martin's utility use a different approach, probably more like the iNav thing, with additional functions when things happen. Of course, you can set commands to be run when the monitors exceed thresholds, I believe. disk/HUNTER's thresholds include being based on percent reduction of free space - I don't remember the threshold types in iNav, but if the latter are some fixed point, they are maybe not quite so useful. But anything is better than hitting 95% of a sudden at 3am.

Vern

On 7/19/2010 8:30 AM, rob@xxxxxxxxx wrote:

There is a free graphical product built specifically for the i which will
show you graphically how much disk space is used on your system and will
give you time intervals. It can also perform actions when the space
exceeds a certain percentage. However, it will not give you any details
as to what is eating the space up. This free product is iNav which is
part of system i Access for Windows. The only parts of System i Access
for Windows you have to pay for is 5250 and file transfer.

IBM Systems Director Navigator for i is available by opening up your
browser and going to
http://youri:2001
Haven't played with it much but it does have something called Disk
Watcher.
I know it is part of 6.1 and above.
It's included with the OS.
http://www.redbooks.ibm.com/redbooks/pdfs/sg247789.pdf
http://www-304.ibm.com/easyaccess/fileserve?contentid=142117
The Health Indicators part of that also sounds interesting.

If you run RTVDSKINF and RTVDIRINF regularly, and setup RTVDSKINF to use
different files (done mostly automatically with RTVDIRINF) you could get
see from those what is growing by querying before/after data.

There are also some storage system values you can mess with. WRKSYSVAL
SYSVAL(*STG)
If disk goes above a threshold you have it perform an action.

Rob Berendt