I'm keeping an eye on btrfs, which looks very promising to me. The best
of most worlds, should eliminate the need for md/lvm, and the developers
appear to be taking ssd into account, although to be honest btrfs
appears to be a bit i/o intensive (mostly due to cow). Good stuff none
the less. Oracle will reportedly be using it, and Fedora developers are
trying hard to make it the default in F17.
--
-Eric 'shubes'
On 02/12/2012 12:08 PM, Michael Butash wrote:
> I think it's still a lot of theory and assumption that goes on trying to
> figure out exactly how to treat these darn SSD's just right, and every
> one is different. So much information, yet none of it is really
> comprehensive how exactly to deal with them across all the various
> fs-types. It took me a few weeks to get my recipe working somewhat
> reliably on my hp laptop, where the laptop has it's own issue to
> compound it too (relating to disk security/locking in bios).
>
> Kind of a shame, It only makes linux look piss poor when you have to
> spend so much effort to figure out such a basic disk function if you
> want to do it "right" and get the most performance/longevity. I still in
> no way know if I really am, either. I'm hoping someone at canonical,
> redhat, or even the disk vendors start building partitioning systems
> intelligent account for SSD's, otherwise they're creating timebombs. My
> first pair of SSD's didn't last a year before one began getting flaky
> (2nd gen sata3 micron, the "good" ones), and that was with default
> alignment with md/lvm atop it (no disk encryption at the time, just the
> homedir).
>
> Since trim support is still pretty wack (doesn't work fully between
> lvm/luks/raid), I heard disk vendors are they're pushing the garbage
> collection into hardware in the disk now at least. Maybe they need to
> align themselves for the stupid os' too. :)
>
> -mb
>
>
> On 02/12/2012 09:34 AM, Eric Shubert wrote:
>> That's interesting, as I settled on 32x32 as well. It seems to fit all
>> the possibilities (4k sectors, etc).
>> Great minds think alike. ;)
>>
>> Yeah, the installers aren't up to snuff with alignment or GPT yet from
>> what I've seen.
>>
>> Thanks.
>>
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