[nSLUG] Journaling fs? Unsuitable for thumbdrive?

Joel Maxuel j.maxuel at gmail.com
Sun Aug 23 18:55:30 ADT 2015


Yeah, I heard about (what's now an old wives tale) after I formatted some
flash drives ext4.

Never did get around to changing the journaling, now I guess I don't have
to since I don't have anything to worry about.


--
Cheers,
Joel Maxuel

"One should strive to achieve, not sit in bitter regret."
 - Ronan Harris / Mark Jackson

On Sun, Aug 23, 2015 at 3:07 PM, Mike Spencer <mspencer at tallships.ca> wrote:

>
> 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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