Tom Robinson wrote:
Tom Robinson
IT Manager/System Administrator
MoTeC Pty Ltd
121 Merrindale Drive
Croydon South
3136 Victoria
Australia
T: +61 3 9761 5050
F: +61 3 9761 5051
E: [email protected]
On 01/04/14 11:06, Ian Collins wrote:
Tom Robinson wrote:
On 01/04/14 08:56, a b wrote:
About „the one big partition“ thing:
It is the system partition. You should add a second data disk for all your
stuff (that will
automatically get formatted and mounted at /data).
I will never understand why people just keep making arbitrary di-
rectories like /data off of /, when there is a very clear speci-
fication which says that /var/opt is for third party data, but it
is very upsetting when I see /data or /srv, or anything else ar-
bitrary like that.
It would be really swell if this were /var/opt by default, like
the filesystem(5) manual page says. That is SVR4 and a Linux
Standards Base filesystem standard. There is absolutely no reason
whatsoever to re-invent the wheel.
I agree. Following the standard makes sense. When installing packaged software
there is an
expectation that the system will have enough space in a standard location (e.g.
/var/spool/xxx,
/var/lib/yyy, /var/www, /usr/share, and indeed /opt, to name a few). If a
database is expected to
be large, one can allocate appropriately on the correct filesystem location.
With dynamic volumes
(LVM, etc.), it is also possible to re-provision more space later. It's not
about allocating a
huge disk and hoping for the best. It's about planning and thinking ahead as
far as I'm concerned.
Don't forget that unlike on a physical system, in a virtualised environment
"disks" can be thin
provisioned.
It's a good point to remember. Will a thin provisioned system have poorer
performance
characteristics that one that is not?
In the case of ZFS volumes, no.
--
Ian.
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