[CentOS] OT how to prevent oversubscription of a disk

Sun Jan 2 08:06:11 UTC 2011
Gordon Messmer <yinyang at eburg.com>

On 01/01/2011 05:56 PM, Dave wrote:
> Is there a best practice? People have to be doing something!

I think that's unlikely.  If you don't "oversubscribe" your disk space 
as a matter of policy, you'll force upgrades earlier than most people 
would consider them necessary.  Most users, I'd expect, will be well 
under quota most of the time.  You'd commit all of your disk space to 
quota long before the space was actually used.  In your scenario, you'd 
be required to expand the disk array whenever it was committed to quota, 
even if actual use was very low.  Every site that I know of which uses 
quotas handles disk upgrades when utilization requires it, not when 
quota subscription does.