[kwlug-disc] Bitrot and atomic COWs: Inside ???next-gen??? filesystems | Ars Technica

Bob Jonkman bjonkman at sobac.com
Wed Jan 22 13:55:23 EST 2014


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Jason wrote:
>> That article was the impetus for me to try it out for the first 
>> time while rebuilding a home micro-server

Did you backup, reformat, then restore, or is there a conversion tool
to go from ext* to btrfs?

- - --Bob.



On 14-01-22 11:34 AM, L.D. Paniak wrote:
> 
> On 01/22/2014 11:29 AM, Jason Locklin wrote:
>> On Wed 22 Jan 2014 01:48:38 AM EST, unsolicited wrote:
>>> On 14-01-21 04:20 PM, Chris Frey wrote:
>>>> On Mon, Jan 20, 2014 at 05:58:21PM -0500, Paul Nijjar wrote:
>>>>> On Wed, Jan 15, 2014 at 09:27:46AM -0500, L.D. Paniak
>>>>> wrote:
>>>>>> A quick overview of what makes "next-generation"
>>>>>> filesystems like ZFS and btrfs different and necessary:
>>>>>> 
>>>>>> http://arstechnica.com/information-technology/2014/01/bitrot-and-atomic-cows-inside-next-gen-filesystems/
>>>>>>
>>>>>>
>>
>>>>>> 
That article was the impetus for me to try it out for the first time
>> while rebuilding a home micro-server from an old netbook with a
>> 8Gb SSD (and broken screen). Turning on compression and running a
>> "defragment" brought my Debian install from about 1.8Gb down to
>> under 600Mb, with no obvious slow-down. Funny, it was the first
>> time I have ever run a defragment on a Linux system! Brings  me
>> back to my Win ME days! lol.
>> 
>> I figured it was a good place to start because at 8Gb, I can
>> easily do bare-metal backups in case I run into a fs bug. It has
>> a bit of a learning curve, so I'd suggest doing some reading
>> before doing anything fancy with it, but it's really exciting. 
>> -Jason Locklin
>> 
> A couple of questions: which filesystem did you use and how much
> RAM is in the system?  I am curious about how little compute/RAM is
> required to make these advanced filesystems/features work
> effectively.
> 
> 
> 
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