[Toolserver-l] disk quotas

[River Tarnell]

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hi,

one of the problems we often see on the Toolserver is users accidentally
using too much disk space (for example, broken tools generating 100GB
logfiles).  to avoid this happening in the future, we will be bringing
back disk quotas over the next week or two.  this will work as follows:

* newly created accounts will get 250MB disk quota
* users currently using less than 200MB will also get 250MB disk quota
* users using more than 200MB will get 1.5x their current usage.
  (for example, a user currently using 500MB will get 500 * 1.5 = 750MB
  quota).

this is a 'soft' limit; the 'hard' limit will be 2x the soft limit.  you
can exceed the soft limit for up to 7 days, which allows people to
temporarily use more disk space if necessary.  however, you can never
exceed the hard limit.  if the soft limit is exceeded for more than 7
days, you will be unable to use any more space until your use is brought
back under the soft limit.

we recognise that users sometimes need to use more than 250MB of disk
space for legitimate reasons.  therefore, if you need more quota than
you have, you may file a request in JIRA (TS project), specifying how
much space you need, and a general description of the purpose (for
example, "storing rendered map tiles").  if, based on the description
above, you think you will need more disk space than the amount you will
be assigned automatically, you should file a request in JIRA now, so
your initial limit is set correctly.

while it's always important to monitor your disk space, and avoid using
space unnecessarily, there is nothing wrong with needing more space than
your current quota allows.  please don't feel like you can't run a tool
because it would need more disk space.  (however, a tool using 200GB
disk space is probably excessive.)

you will be informed at login time if your disk usage exceeds your soft
or hard quota.  you can always check your current usage by running
'quota -v'.

in the past we've had quotas on and off at various times; from now on,
it's likely to be permanent.

	- river.
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