On Fri, Jun 6, 2008 at 4:14 PM, Peter Tribble <[EMAIL PROTECTED]> wrote:
... very big snip ...
> (Although I have to say that, in a previous job, scrapping user quotas
> entirely
> not only resulted in happier users, much less work for the helpdesk, and -
> paradoxically - largely eliminated systems running out of space.)
[Hi Peter]
Agreed.
So, one has to re-evaluate "legacy" thinking in the context of
inexpensive storage offered by ZFS in combination with cost effective
disk drives and ask the question: what lowers the total cost of
ownership and provides the best user experience?
Option a) A complex quota based system implemented on top of providing
the "correct" required system storage capacity.
Option b) A ZFS based storage system with x2 or x4 (etc) times the
"correct" required storage capacity with a once a day cron job to
remind the storage hogs (users) to trim their disk space, or face the
"or else" option (the stick approach). And perhaps a few quotas on
filesystems used by applications or users know to be problematic.
I would submit that Option b) will provide a lower cost, in terms of
total system cost, over time - expecially given the price performance
of modern disk drives in combination with high performance log and
cache devices (if required).
Every time I've come across a usage scenario where the submitter asks
for per user quotas, its usually a university type scenario where
univeristies are notorious for providing lots of CPU horsepower (many,
many servers) attached to a simply dismal amount of back-end storage.
Where users are, and continue to be, miffed at the dismal amount of
storage they are offered. This is legacy thinking looking for a
"legacy-thinking-compliant" solution to a problem that has already
been solved by ZFS and the current generation of high capacity, ultra
low-cost per terabyte, offered by modern hardware. IOW - it's a
people issue, rather than a technological issue.
Regards,
--
Al Hopper Logical Approach Inc,Plano,TX [EMAIL PROTECTED]
Voice: 972.379.2133 Timezone: US CDT
OpenSolaris Governing Board (OGB) Member - Apr 2005 to Mar 2007
http://www.opensolaris.org/os/community/ogb/ogb_2005-2007/
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