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Re: [Extra] draft-ietf-extra-quota: 64 bit numbers

Stephan Bosch <stephan.bosch@open-xchange.com> Mon, 22 June 2020 17:51 UTC

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To: Timo Sirainen <timo@sirainen.com>, Alexey Melnikov <alexey.melnikov@isode.com>
Cc: extra <extra@ietf.org>
References: <D5959732-6733-4747-B0F9-7302A0471767@sirainen.com> <dd80189f-7aed-b49c-da12-0d2dc80be907@isode.com> <41C5AB52-3FA9-4711-A254-492CF6B64F01@sirainen.com>
From: Stephan Bosch <stephan.bosch@open-xchange.com>
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Date: Mon, 22 Jun 2020 19:51:42 +0200
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Subject: Re: [Extra] draft-ietf-extra-quota: 64 bit numbers
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On 22/06/2020 14:23, Timo Sirainen wrote:
> On 22. Jun 2020, at 15.11, Alexey Melnikov <alexey.melnikov@isode.com> wrote:
>>
>> On 17/06/2020 22:30, Timo Sirainen wrote:
>>
>>>>     The usage of a resource MUST be represented as a 32 bit unsigned
>>>>     integer.
>>> I think we should go for 64 bit numbers already. RES-STORAGE is now limited to 4 terabytes, which is rather high value for a single user's limit for now, but I could imagine it being a possibility in some more years. Maybe even already in email systems that use only a few users. Also there's already an example:
>>>
>>>        C: G0001 GETQUOTA "!partition/sda4"
>>>        S: * QUOTA "!partition/sda4" (STORAGE 104 10923847)
>>>        S: G0001 OK Getquota complete
>>>
>>> The 4 TB limit can already be easily reached if describing a filesystem size.
>>
>> Sounds good. Shall we make it 63 bits to make it easier to implement for Java based implementations?
> 
> Yes. I think this 63/64bit issue was discussed some time ago already. Maybe related to some other extension.


This is mentioned in STATUS=SIZE, and in draft IMAP4rev2 by inference.

Regards,

Stephan.
> 
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