Migration from the KQ Implementation

Matthew Robbetts wingfeathera at gmail.com
Wed May 4 04:43:36 EDT 2011


On 3 May 2011, at 22:50, Gordan Bobic wrote:

> On 05/03/2011 10:38 PM, Fajar A. Nugraha wrote:
>> On Wed, May 4, 2011 at 4:09 AM, Gordan Bobic<gordan.bobic at gmail.com>  wrote:
>>> I don't suppose there's a way to downgrade the pool version to v23 or v26 so
>>> I could fall back on the fuse implementation in an emergency?
>> 
>> For emergency situations I keep a copy of latest Solaris Express
>> handy. It was able to import a problematic pool (crashed during
>> bonnie++ test) for me in the past where both zfs-fuse and native zfs
>> failed.
> 
> Indeed, that would have been my plan B if I hadn't had a backup of everything. :) Good to know that it probably would have worked.
> 
> Which brings me to another, somewhat tangential point. Sun and Oracle have thus far failed to provide a fsck tool for ZFS. In the absence of such a tool from an official source, is there a future plan/intention for providing such a thing within the scope of this project? I know that ZFS is supposedly designed so that it is always consistently recoverable, but I know of several cases at work where this wasn't the case after a crash, using pure stable Solaris.


Would such a tool be needed? I've always thought that scrub provides all of the features of fsck but is also able to work online. Is this not the case?


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