[mythtv-users] ECS Liva for frontend - brief report

[Stephen P. Villano]

On 1/2/15 4:36 PM, marcus hall wrote:
> On Fri, Jan 02, 2015 at 06:02:35PM +0100, Josu Lazkano wrote:
>> I never use eMMC disk, with SSD disk, there is a limited write access,
>> so it is important to not write every time. What about the logs? Do
>> you write logs in the Liva? I use to start mythfrontend this way:
>> "/usr/bin/mythfrontend --loglevel info --syslog local6"
> About 10 years ago I was involved in a project using compact flash cards as
> the root filesystem, and at that time we worked out that with the endurance
> rating and wear leveling, we could write once a second to the card and the
> lifetime would be 20 years or so.
>
> Current cards certainly have at least as good endurance, and normal operation
> should buffer enough that writes should average much less than once a second
> (especially using 'noatime', or 'relatime', (or the forthcoming 'lazyatime')
> mount options).  Certainly, if the software goes ape crazy and starts writing
> at processor speeds to the flash, it won't last very long.  But, hopefully
> that won't happen.
>
> marcus hall
> marcus at tuells.org
> _______________________________________________
>
NASA's Opportunity rover just recently lost one bank of flash. They're
currently preparing to map around the one defective bank.
While the flash memory NASA used is of a different grade than our
commodity flash and the environment substantially more hostile than we
live in, that says something for flash memory in general. Many times, it
far exceeds the write ratings for the medium.