meteohub.de

Hi, Having had to send my Mb Pro back for repair after only 3 months I'm keen to avoid the same thing happening again.
looking at the Version 3 update which incorporates a work around for the failing flash problem, ie it will increase the time before failure by a factor of 15 (15min writes vs 1 min write). Would it make sense for me to write the database to an external thumb drive. Then the internal memory would only get written to when updating firmware or settings. If the Thumb drive fails I can be back up and running again with a backup in hours rather than weeks. In addition most quality flash drives incorporate wear leveling to mitigate against this type of failure.

I don't want to be sending the device back every couple of years to have a new memory module installed.

Cheers
Tom

You can operate the MB PRO with a USB thumb drive connected to the front panel and
tell MB PRO on system tab to use this as primary storage. I know that the USB drives do wear-leveling
but quality of USB drives seems to be overall extremely poor. You will hardly find any drives
with SLC memory to a reasonable price. That has been much better years ago.

When things work out fine, interval will be stretched to one hour. Also data edit functions
will then not show up on minute resolution but on hour resolution (History tab).
What you see now is an intermediate state.

I also don't want to replace memory modules in the future as doing this
(including handling etc) eats much too much time.

Can we have a list of recommended USB drives that will fit the MBPro ignoring price as a factor?

Funny question. When I would know a stick to be 100% recommened that can handle unlimited
traffic for sure, I would use it. But feel free to setup your own testing...
Dimensions can be up to 31mm length (including connector) and about 5mm thickness.

My findings so far:
- I cannot recommend "Toshiba TransMemory™-Mini 8GB"
- I found acceptable the "Intenso Premium Line 8GB" but these also can fail given high update rates
- I am unsure about the "ADATA AUC510-8G" which showed mixed results and was rather slow in my stress tests

Currently I am testing the "Transcend Jetflash 710 16GB" which seems to be rather good in the wear-out testing so far,
but it will take another few weeks to see how far it survives the ongoing write operations my test program does
stress it with. For the moment there is imho no way to avoid reducing write frequency significantly.

Premium wear characteristics don't seem to be a design goal for USB sticks today. The expensive ones
do not differentiate in reliability (by using SLC flash for example) but just try to maximize capacity
and speed (when doing large continuous bulk reads/writes). Both is rather meaningless for what we are looking here.

I have a Transcend JetFlash 710S (32gb) in a Red Pro, time will tell I suppose. Original was a Intenso 8gb which ran about 3 months.

What are the thoughts on the Verbatim Store'n'Go Micro USB or should we use a fully enclosed type shell?
http://www.verbatim.com.au/en_AU/produc ... -black-8gb

Measures 30mm long and 2mm thick, smaller than the Intenso.

Cool that you also try the Transcend. I will report how many writes it does take in my testbed.

Form factor of the verbatim looks ok, but write speed (4 MB/s) does not give me much
hope that high quality flash being in there. SLC can be ruled out by these slow speeds.
Do you have indications that this is a very reliable USB stick?