Re: Elastic Quota File System (EQFS)

["Fao, Sean" <sean.fao@capitalgenomix.com>]

Amit Gud wrote:

> Fao, Sean wrote:
>
>> Amit Gud wrote:
>>
>>> It cannot be denied that there _are_ applications for such a system 
>>> that we already discussed and theres a class of users who will find 
>>> the system useful.
>>
>>
>>
>>
>> I personally see no use whatsoever. Why not just allocate 100% of the 
>> file system to everybody and ignore quota's, entirely?  Each user 
>> will use whatever he/she requires and when space starts to run out, 
>> users will manually clean up what they don't need.
>>
> We should get our basics right first. We _do_ need quotas!! Without 
> any quota system how are we going to avoid a malicious user  from 
> taking away all the space to keep other people starving? In EQFS also 
> this can happen, but we are giving *controlled flexibility* to the 
> user. He is having some stretching power but not beyond a certain 
> limit. And do you think users are sincere enough to clean up there 
> files when they are done?


And I suppose you think that users will be sincere enough to mark files 
as elastic?  I, for one, already said that I absolutely would *not* mark 
a single file as elastic.  If I'm using 110 MB and you need an 
additional 10 MB for storage, you won't be getting it from me because I 
don't want to come in some morning to find that a file has disappeared.

The system that you're asking for is a system without quotas.  Think 
about what you're saying.

>
>> I am totally against the automatic deletion of files and believe that 
>> all users will _eventually_ walk in on a Monday morning to find out 
>> that the OS took it upon itself to delete a file that was flagged as 
>> elastic, that shouldn't have been.  
>
>
> User is the king, he decides what files should be elastic and what 
> not. This can always be controlled.
>
Controlled how?  Who is anybody to inform me of what files I need/don't 
need?

Sean