SSD Controllers

[earls]

"JMicron JMF602B Based SSDs - Patriot Warp"

"Those JMicron drives were nothing short of crap."

"on a normal desktop, the majority of your disk accesses will be small file reads and writes and these drives can’t cut it there. [...] Some vendors have put out optimization guides designed to minimize stuttering with these JMF602B based drives. The guides generally do whatever they can to limit the number and frequency of small file writes to your drive (e.g. disabling search indexing, storing your temporary internet files on a RAM drive). While it’s true that doing such things will reduce stuttering on these drives, the optimizations don’t solve the problem - they merely shift the cause of it. The moment an application other than Vista or your web browser goes to write to your SSD you’ll have to pay the small file write penalty once more. Don’t settle."

I believe the stuttering (write delays) only become an issue once the SSD pages/blocks have been completely filled once over.

First off, I personally ... Don't care. I'm very happy with the price per performance of my Patriot Warpv2 drives... They had a very low (cheap) entry point into the high performance (without question) next-gen technology and (for me) are only a placeholder until the price/size ratio normalizes with HDDs. In that period of time, the SSD controllers will evolve all the same.

I have already recommended Patriot products to many others, and will continue to seek out Patriot memory products (I have some Viper RAM too!) first before considering other brands.

The point of this thread was to request that any future Patriot SSD specifications published disclose the aspects of the onboard controller. The brand, model, version, and how many.

RE: "some vendors chose to take two JMF602B controllers and put them in RAID, using another JMicron controller [...] the worst case scenario latency penalty - at best, gets cut in half using this approach."

Moving on...

While apparently, it should be "assumed" that all "consumer" SSDs are MLC, it would be helpful to distinguish between SLC and MLC in case at some point Patriot's offerings change.

The "MTBF" rating is also misleading. To gauge an "mean" "lifespan" of the drive, the limits of the write cycles should be disclosed: "1,000 to 10,000 write cycles for MLC" ... Unless the MTBF was calculated from such values - my point being this should be explained.

Thanks!

Source: http://www.anandtech.com/printarticle.aspx?i=3531

[Michaelius]

I have to say I did all the tweaks suggested for SSD drives and so far I'm happy with my single Warp v2 32GB as Vista 64 drive. I only managed to get it to stutter once but the situation was pretty extreme

I look forward to adding one or two more for a raid 0 setup