Yeah, in snv_171 this seems to be addressed. I filled both a root pool and a 
non-root pool, and was able to delete a file and free up space on both. So, it 
looks like CR6976827 has addressed the issue.

/jb


On Aug 9, 2011, at 10:25 AM, Jesse Butler wrote:

> 
> On Aug 9, 2011, at 10:20 AM, Drew Fisher wrote:
> 
>> 
>> 
>> On 8/9/11 7:55 AM, Darren Kenny wrote:
>>> On 09/08/2011 14:30, Drew Fisher wrote:
>>>> Good morning!
>>>> 
>>>> I wanted to discuss 7032205
>>>> (http://monaco.sfbay.sun.com/detail.jsf?cr=7032205) with the group to
>>>> try to get a consensus with the right approach to take.  What I was
>>>> thinking was setting a value of 1% of the total size of the root pool,
>>>> with an upper bound of 1gb.
>>>> 
>>>> For the ultra small disks (32gb SSD), 1% is 320MB.  For huge disks (2tb
>>>> HDD), we'd cap at 1gb.  This would provide admins a little bit of
>>>> breathing room for a full root pool.  The problem with doing something
>>>> like this is some admins would really appreciate the installers doing
>>>> something like this for them while other admins want to customize each
>>>> and every single aspect of their install.  This leads to a few approaches:
>>>> 
>>>> 1:  Set up an ICT to do the quota setting *after* we successfully
>>>> install - this is so we can complete the install without zfs getting in
>>>> the way.
>>>> 
>>>> 2:  Set up controller.py to add an additional zpool option for the quota
>>>> on the root pool.
>>>> 
>>>> 3:  other?  Add something to the default manifest for AI and force the
>>>> option for GUI and TI?  DTD entries specifically for this?
>>>> 
>>>> Please let me know what you folks think!
>>> Honestly, and I've said this before, I feel that this is a ZFS bug and 
>>> should be
>>> fixed in ZFS - even with a 100% full disk it should be possible to make 
>>> space -
>>> but it isn't, there really should be a 'buffer' in there.
>> 
>> I totally agree with the sentiment that this is a ZFS issue.  Perhaps we 
>> don't need to do anything on our end, aside from escalate the CR already 
>> assigned to ZFS.
> 
> The current situation is unclear to me... obviously, no one seems to be on 
> the initial RFE (6803038), but 6976827, which was integrated in snv_167) at 
> least by synopsis, seems to be a fix. Maybe we should check into this first.
> 
> Back to the point here - I think it's a good workaround to set a quota on the 
> rpool, but if it's not necessary I doubt it's required even optionally.
> 
> /jb
> 
>> 
>>> 
>>> But, if we are going to have to go down this route, then I think what you're
>>> suggesting sounds like a good start and I would prefer option 2, as long as
>>> there isn't a quota already specified by the user. This gives the best of 
>>> both
>>> worlds - i.e. automatically settable while leaving it possible to override.
>> 
>> Thanks, Darren.
>> 
>> -Drew
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