Quote:
Originally Posted by
MadeInGermany
I vote for not having a /opt partition because binaries are in /usr and /opt.
But that means you must have a much bigger / partition, I suggest 40 GB
According to the
Filesystem hierarchy standard /opt is for "Add-on application software packages" - like DB/2 as the thread-O/P has mentioned. "
/usr", on the other hand ("usr"="Unix Software Resources")
Quote:
is shareable, read-only data. That means that /usr should be shareable between various FHS-compliant hosts and must not be written to. Any information that is host-specific or varies with time is stored elsewhere.
Large software packages must not use a direct subdirectory under the /usr hierarchy.
So, if one thinks about installing application binaries in "/opt" it might be a good idea to have it reside in its own filesystem. If you are foing to cluster the system you even have to, so that it can be made part of the resource group and shared between the nodes.
Regarding the size of "/var/tmp" and "/tmp": my tenet is to start out small and increase as necessary. It is only 2 commands to increase from 1GB to 20GB should the necessity arise. It is a lot more complicated to shrink it back once the space is allocated.
It is true that disk space is cheap nowadays and, agreed, i might be a little old-fashioned, coming from times where 1k was a lot of space. Still, i hate to waste anything, be it diskspace, processor power, memory or whatever.
I hope this helps.
bakunin