Defaults in 10.0 ZFS through bsdinstall

[Teske, Devin]

On Nov 14, 2013, at 12:49 PM, Mark Felder wrote:

> On Thu, Nov 14, 2013, at 12:35, Teske, Devin wrote:
>> 

Correction: Allan Jude said the following...
NB: You replied to an e-mail that had bad quoting (which I fixed in a later reply)

>> I have never heard a good argument for having atime on. The performance
>> penalty on ZFS is quite large, and it also makes your snapshots grow
>> constant. If you have a use for it, you can turn it on I guess. This
>> would be solved by having the dataset editor we're planning for 10.1
>> 
> 
> POLA and POSIX, even though it was a bad decision to invent atime :-)
> We've never turned atime off before and it would be a huge surprise to
> me, so I'd avocate that we let the admins who know what they're doing
> turn it off. I know many Linux distros install with noatime and/or
> nodiratime, but I'm 99% sure tools don't create filesystems with atime
> flagged to be off by default (tune2fs -O noatime). 
> 

Fair enough... I'll hold out for Allan's +1 since I didn't have anything to do
with this.


> We don't even do installs on UFS with atime disabled by default in fstab
> so why should we so suddenly change course for ZFS?
> 

You've made a good point.
-- 
Devin

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