It's not a brand issue, per say, although some brands are more targeted toward consumers. Search MLC vs. SLC and you'll learn about the differences in the underlying structure and why SLC is more expensive but also more reliable and lasts 10 to 20 times longer. And yes, I suppose all SSDs have a leveling algorithm but the hardware engineers at my last company got non-disclosure access to the algorithms from different suppliers and commented that there's definitely a significant difference.
Another thing you can do to extend the life is to get a bigger drive than you normally would. The rule of thumb is that if you double the size of the storage, you double the lifetime. (Actually, it's intuitively obvious that if there is double the amount of space, then each part of the space should be used half as much.)
These guys produce custom PCs for commercial, automotive, industrial systems. You can see a few types/vendors there.
http://www.logicsupply.com/categories/flash_storage
Michael N6MEF
-----Original Message----- From: 44net-bounces+n6mef=mefox.org@hamradio.ucsd.edu [mailto:44net-bounces+n6mef=mefox.org@hamradio.ucsd.edu] On Behalf Of Geoff Joy Sent: Sunday, October 20, 2013 11:08 PM To: AMPRNet working group Subject: Re: [44net] SJVBBS W6RAY
(Please trim inclusions from previous messages) _______________________________________________ Which brands/types of flash don't have leveling algorithms in them? It was my understanding this is a necessity.
Which brands/types are commercial/industrial grade?
Regards, Geoff Joy -ke6qh-
On Oct 20, 2013, at 22:30, "Michael E. Fox - N6MEF" n6mef@mefox.org
wrote:
(Please trim inclusions from previous messages) _______________________________________________ Or else get the type specifically meant for that purpose (industrial/commercial grade). They have much higher write cycles and leveling algorithms to distribute the write cycles more evenly across the device.
Michael N6MEF
-----Original Message-----
Do you have external storage? The SD cards tend to corrupt over time, especially if they have a lot of delete and write cycles.
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