Re: OpenBSD and solid state disks

Thanks for the insight on SSDs -- sounds like there is not much of an
issue with modern drives.

Dave Raymond

On 11/3/19, gwes <gwes@oat.com> wrote:
> On 11/2/19 4:10 PM, Raymond, David wrote:
>> I recently installed OpenBSD on a Lenovo X1 Carbon with a solid state
>> drive and it works great.
>>
>> My question is whether OpenBSD addresses the special characteristics
>> of solid state drives, especially those having to do with longevity
>> and reliability. I can't find anything written on this. Linux has
>> certain means for addressing this issue, such as fstrim as well as
>> various kernel options. Is there anything I have missed with OpenBSD
>> on this subject?
>>
>> Dave Raymond
>>
> Any modern drive will have write levelling. Check the rated number
> of writes for the drive. Run iostat for a week or two to determine
> average writes/time interval. Compare that against 10% of rated
> writes. When you get there, replace the drive.
>
> 500 TB is a good number for write endurance.
> Completely writing a 1TB drive every day gives you 50 days.
> Writing 100GB a day gives you 500 days...
> Do you write 20 DVDs a day? That's your answer.
>
> Geoff Steckel
>
>


--
David J. Raymond
David.Raymond@nmt.edu
http://physics.nmt.edu/~raymond