https://etbe.coker.com.au/2016/08/14/ssd-m2/ I've just written a blog post that covers similar things to my talk about M.2 and SSD. Apparently someone asked for my lecture notes, that wouldn't be useful but the above post probably will be. -- My Main Blog http://etbe.coker.com.au/ My Documents Blog http://doc.coker.com.au/
On 14/08/2016 12:42 AM, Russell Coker via luv-main wrote:
https://etbe.coker.com.au/2016/08/14/ssd-m2/
I've just written a blog post that covers similar things to my talk about M.2 and SSD.
Apparently someone asked for my lecture notes, that wouldn't be useful but the above post probably will be.
You might find this interesting too: https://en.wikipedia.org/wiki/NVM_Express And I just learnt that the flash used in most SSDs is pretty much equivalent these days; however, Samsung has the best firmware/management of the flash -- so it is the one to go for. Also, with SSD, apparently when it writes data, it does an erase of the storage space of 6MB and then writes 6MB per write operation; it was likened to how CD/RW disks work. The ex NSA guy at PC Perspectives does a lot of research in this whole area. Check out their website. Cheers AndrewM
On Monday, 15 August 2016 9:38:00 PM AEST Andrew McGlashan via luv-main wrote:
And I just learnt that the flash used in most SSDs is pretty much equivalent these days; however, Samsung has the best firmware/management of the flash -- so it is the one to go for.
Sam McLeod (who did the awesome talk about building high performance storage for LUV last year) said to me (via Twitter): # don't touch anything Samsung in our experience. Go Micron M600 # or Sandisk Extreme Pro He was pretty down on their firmware. However, Peter Tonoli from unimelb said he'd not had any issues with Samsung 850pro's, but he takes care to never run them over 50% occupancy. Samsung did manage to ship a firmware update 18 months ago that b0rked a some peoples drives. http://www.guru3d.com/news-story/after-samsung-840-evo-issues-now-the-850-pr... cheers, Chris -- Chris Samuel : http://www.csamuel.org/ : Melbourne, VIC
On 15/08/16 21:49, Chris Samuel via luv-main wrote:
On Monday, 15 August 2016 9:38:00 PM AEST Andrew McGlashan via luv-main wrote:
And I just learnt that the flash used in most SSDs is pretty much equivalent these days; however, Samsung has the best firmware/management of the flash -- so it is the one to go for.
Sam McLeod (who did the awesome talk about building high performance storage for LUV last year) said to me (via Twitter):
# don't touch anything Samsung in our experience. Go Micron M600 # or Sandisk Extreme Pro
He was pretty down on their firmware. However, Peter Tonoli from unimelb said he'd not had any issues with Samsung 850pro's, but he takes care to never run them over 50% occupancy.
Personally I'd either go with Samsung or Intel these days, nothing else. I did pick up a SanDisk drive, and for whatever reason it was slow enough at being detected that when I tried it in my laptop (Lenovo T430) the system would fail to detect it from poweron. Oddly that same drive is now in an L430 and working fine (although the L430 isn't in UEFI mode, so possibly gives a bit more time for POST). With Intel you also need to be careful about whether it's one of the drives that has an Intel controller (which are fine), or one they rebadge (less so). I'm looking forward to the Intel Optane (AKA "X-Point") drives, but they're probably not going to be cheap when they first come out, and we should probably give them a year or two to work the early bugs out.
On 15/08/2016 9:49 PM, Chris Samuel via luv-main wrote:
Sam McLeod (who did the awesome talk about building high performance storage for LUV last year) said to me (via Twitter):
# don't touch anything Samsung in our experience. Go Micron M600 # or Sandisk Extreme Pro
He was pretty down on their firmware. However, Peter Tonoli from unimelb said he'd not had any issues with Samsung 850pro's, but he takes care to never run them over 50% occupancy.
The SSD endurance testing had the older Samsung 840 (I think) come out on top. All drives since around that time have been pretty good. Samsung did have an issue with slow downs at one stage, which needed special work to "restore" normal performance. But that PC Perspectives guy really knows all this stuff much better than me. See that website. http://www.pcper.com/subject/storage http://www.pcper.com/users/Allyn-Malventano And the torture test, way back in 2014... http://techreport.com/review/26523/the-ssd-endurance-experiment-casualties-o... Cheers AndrewM
participants (4)
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Andrew McGlashan -
Chris Samuel -
Julien Goodwin -
Russell Coker