It's 2008. 1 TB disk drives cost $160. Quotas are 32-bit.

[Brooks Davis]

On Tue, Jul 01, 2008 at 07:25:49PM -0500, Wes Morgan wrote:
> On Tue, 1 Jul 2008, Bakul Shah wrote:
> 
>> On Tue, 01 Jul 2008 22:02:54 +0200 Bernd Walter <ticso at cicely7.cicely.de>  wrote:
>>> On Tue, Jul 01, 2008 at 10:59:31AM -0700, Bakul Shah wrote:
>>>> To bring this back on topic, perhaps John Kobuzik can just
>>>> use the zfs since it already has quota support? For example,
>>>> 
>>>> # zfs create z/foo
>>>> # zfs quota=10M z/foo
>>>> dd < /dev/zero bs=1M count=20 > /z/foo/xx
>>>> dd: stdout: Disc quota exceeded
>>>> 11+0 records in
>>>> 10+0 records out
>>>> 10485760 bytes transferred in 4.718700 secs (2222171 bytes/sec)
>>>> # zfs set quota=10T z/foo
>>>> # zfs get quota z/foo
>>>> NAME   PROPERTY  VALUE  SOURCE
>>>> z/foo  quota     10T    local
>>> 
>>> This is basicly what the partition size is for normal filesystems,
>>> with the great ability of course to change it cheaply at any time.
>>> But this is in no way a per user quota in the way ufs does.
>> 
>> It is not the same but can serve a similer purpose if each
>> user gets his own filesystem (and yes, I am aware of the
>> rebooting issue with zfs with thousands of filesystems).  He
>> wanted support for 2TB+ quota on ufs by July 20.  If that
>> doesn't happen at least he can limp along with this.
> 
> On a totally spurrious note, I'd love to know the storage environment where 
> a 1 TB quota on a multi-user system is meaningful. If I truly need that 
> much space as a user, and I hit your quota limit, I'll probably be a
> very, very unhappy user!

That's probably about where we'll set the default quotas (probably more
like 5-10TB) on a new system we're deploying at work.  It's more that
most users will need, but will ensure that a few users can't run us out
of space (40TB available).

-- Brooks
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