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  3. May 2009

Re: Large systems and full disks

wrote on Thu, 28 May 2009 18:12:54 GMT:

On a large system with over 1,000 gig - is the 90% general rule
still a critical issue? The final 10% is over 100 gig.
Will snads and smtp have issues at 90%.

If you have the storage limits set appropriately (ASP limit in
service tools not in system values), SNADS and SMTP will not have
a problem. However, other things may perform poorly or you could
end up with an unexpected crash. It really depends on the needs
of various temporary objects and sometimes even permanent
objects. Some of the things I'd question are

- Is 100G (less a bit) enough space to hold copies of your two
largest DB tables?
- Do you have space already set aside for a main storage dump?
- How much data growth happens on a daily basis before you get
around to purging older data? This one can be pretty critical if
the system has to spend a lot of time looking for free space on
fragmented disk, it could have an impact on performance.


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