[nSLUG] Re: Journaling fs? Unsuitable for thumbdrive?

Mike Spencer mspencer at tallships.ca
Sun Aug 23 15:07:32 ADT 2015


Ben wrote:

> On 23/08/15 02:53 AM, Mike Spencer wrote:
>
>> Why is it important *not* to use a journaling fs on a SSD/thumbdrive?
>
> Typically this advice gets passed around based on the persistent
> myth that because flash storage only lasts for a limited number of
> write cycles, you should not do anything that would write frequently
> to disk, especially to one spot on the disk (e.g. the journal file
> or swap).

Ah-ha!  The answer, TYVM.

> It's surprising that in 2015 this myth is still circulating. Even
> the lowest grade MLC is not going to wear out because you put a
> journalling FS or a swap file on it.  So relax: the risk of
> corruption in the face of power failures is not worth the perception
> of having improved write endurance.

And the more imprtant gloss on the answer!

Joel's suggestion of ext2 or ext4 sans journaling was an anomaly that I
missed on the first read, then wondered about.

Tnx,
-- 
Michael Spencer                  Nova Scotia, Canada       .~. 
                                                           /V\ 
mspencer at tallships.ca                                     /( )\
http://home.tallships.ca/mspencer/                        ^^-^^





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