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tsialex

Contributor
Jun 13, 2016
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My question isn’t literal. I’m asking for recommendations. I’ve read this entire thread. can’t assume people right off the bat understand the technicality between TLC and MLC. I’ve already created a boot with the drive, wondering if it’s recommended with this pci adapter since there’s actually not a lot of user experience available yet. If you re-read you’ll see that the single adapter is 1500/1500 is consistently
TLC NAND for some drives can consistently have throughput over 1500MB/s, so when you use a PCIe 2.0 slot, the M.2 drive have consistent scores, but when you move to a PCIe 3.0 slot/switched card, you see that the SLC cache is not enough and the throughput is all over the place.

SLC > MLC > TLC > QLC.

Samsung 970 PRO have MLC NAND and can keep consistent scores with sustained throughput when used with a PCIe 3.0 switched card in a MP5,1.
 
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Itconnects

macrumors 6502
Jan 14, 2020
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TLC NAND for some drives can consistently have throughput over 1500MB/s, so when you use a PCIe 2.0 slot, the M.2 drive have consistent scores, but when you move to a PCIe 3.0 slot/switched card, you see that the SLC cache is not enough and the throughput is all over the place.

SLC > MLC > TLC > QLC.

Samsung 970 PRO have MLC NAND and can keep consistent scores with sustained throughput when used with a PCIe 3.0 switched card in a MP5,1.

Figured. For running an OS. At these speeds for a daw like Logic Pro x would you go for the mlc or Slc or are the gains already too big on the tlc to notice less overall snappiness compared to MLC
 

tsialex

Contributor
Jun 13, 2016
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Figured. For running an OS. At these speeds for a daw like Logic Pro x would you go for the mlc or Slc or are the gains already too small to notice at these types of speeds. I’m not worried about boot time. Just overall snappiness compared to MLC
Your question is totally subjective, better ask for a Logic Pro user that have your intended config.
 
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simonnelli

macrumors member
Jun 21, 2012
57
30
Just received my two Kryo M2 evo cards. Great little devices, installed 970 Evo plus in it.
Is it true that the access LEDs can't be turned off completely? (only the Ring around the card can be set to ON/OFF/SSD access). Put some black tape over it in the meantime.
 

zhpenn

macrumors regular
Aug 27, 2014
240
100
I just install toshiba XG6: NVMe, M.2 blade 1TB ON MSI ADAPTOR
Speeds about 2900 MB/s read and write
so far so good
and very good deal
 

Parzival

macrumors regular
May 12, 2013
153
353
Does anyone know if TRIM needs to be enabled when using APFS formatted NVME blades on the MP 7,1? The drives are seen as external, not sure if that matters.
 

simonnelli

macrumors member
Jun 21, 2012
57
30
Does anyone know if TRIM needs to be enabled when using APFS formatted NVME blades on the MP 7,1? The drives are seen as external, not sure if that matters.

I didn't have to enable manually TRIM with Samsung 970 Evo plus (in Kyro M2 evo Adapter) on my 7,1.
 

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hammo123

macrumors member
Jun 9, 2013
35
0
Figured. For running an OS. At these speeds for a daw like Logic Pro x would you go for the mlc or Slc or are the gains already too big on the tlc to notice less overall snappiness compared to MLC

I use Logic Pro X and Pro Tools Ultimate on my Mac Trash Can and whilst I still have the original internal Apple SSD I also have an Akitio Mini Thunderbay and run my DAWs off Samsung 850 Pro 2.5" SSD's via TB2.

My Trash Can is a later build so the internal SSD has the higher speeds but I notice no difference between the DAWs being on internal or via the Thunderbay.

In fact if anything Pro Tools in particular seems to be more stable and crash less running from my external bay via SSD 2.5" [ SATA 6 Gigabit ]
 

Itconnects

macrumors 6502
Jan 14, 2020
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Interesting. I wonder why that is. Currently I’m running my daw on a Western Digital Blue 1TB SSD. I’m gonna try it on an nvme tomorrow and see how it works. I will have to clone my 2.5 to an nvme. Makes me want to by a 4tb 2.5... but at these prices and those speeds at the drive bay, it’s a weird sort of dilemma that feels like I’m wasting money.

While working on a large session I kept getting a progress bar that would flicker when I made tiny changes here and there. It wouldn’t slow down my process. Almost as if it should be hidden in the background. It would flash so fast you couldn’t actually see the progress. I never got this behavior from my slower MacBook. I thought it was related to the 2.5 drive, furthering my desire to try nvme but after your post I think it might just be the latest iteration of logic x pro and Mojave
 

Mikis

macrumors member
Jun 3, 2015
30
7
Hopefully one will see and answer
You won’t notice any difference on your operating system. Where you will notice a difference is if you raid 3 disks together (or even as a jbod) and keep all your large libraries for instruments like Kontakt on the fast disks. My library is sitting at 3tb and growing so I need 2tb ssd’s which is going to set me back. Looking forward to it though.
 

Itconnects

macrumors 6502
Jan 14, 2020
279
28
You won’t notice any difference on your operating system. Where you will notice a difference is if you raid 3 disks together (or even as a jbod) and keep all your large libraries for instruments like Kontakt on the fast disks. My library is sitting at 3tb and growing so I need 2tb ssd’s which is going to set me back. Looking forward to it though.

Nice thank you. Do you recommend sata 2.5 ssd on drive bay? You know when the new MacBooks came out in 2014. Apples main marketting was that it was faster. I always assumed it was much snappier than my early 2013 which was really an upgraded 2012 rMBp. This was my logic for using an nvme for the OS. I have two options, stick with it in the sata tray or use my owc sata 2.5 to pci adapter to get 500mb/s.

As far as Kontakt is concerned. I almost want to get a 4tb 2.5 sata SSD. I heard kontakt is not optimized to utilize the full capabilities of an nvme drive, so I’ve almost given up on that idea. I have a 2tb nvme, a 1tb nvme on a syba, and a 2.5 sata in the tray running the OS. I’m going to add another drive but I haven’t quite figured out where I want things to go mainly because Sata 2.5 drives are still expensive and I’ve run out of pci slots. I have a 3.0 card I rarely use that could be pulledout
 

riggieri

macrumors member
Apr 30, 2012
41
9
I bought a used 6.4TB Intel P4600 U.2 SSD off eBay and am trying to get it to work. I installed it on a Startech u.2 to 4x PCIe card. Mac Pro 2019.

System sees the card, says it is an unknown nvme drive. What should I look into?
 

1147402

macrumors member
Sep 27, 2018
65
54
I bought a used 6.4TB Intel P4600 U.2 SSD off eBay and am trying to get it to work. I installed it on a Startech u.2 to 4x PCIe card. Mac Pro 2019.

System sees the card, says it is an unknown nvme drive. What should I look into?

I read somewhere that Apple removed U.2 driver at some point so it should not work at all with Mac Pro 2019, but I could be wrong.
 

Itconnects

macrumors 6502
Jan 14, 2020
279
28
Barely breaking 1,000 read and write speeds at 4x slot with inland premium ssd with syba on Mojave both 1tb and 2 tb drives on their own
 

macoda

macrumors newbie
Jan 11, 2020
15
6
Just received my two Kryo M2 evo cards. Great little devices, installed 970 Evo plus in it.
Is it true that the access LEDs can't be turned off completely? (only the Ring around the card can be set to ON/OFF/SSD access). Put some black tape over it in the meantime.

It seems not. I've mine set to OFF and it still flashes on access.

What speeds are you getting? In slot 3 I'm struggling to break 1,500Mb/s with the same setup.
 

tsialex

Contributor
Jun 13, 2016
13,455
13,601
It seems not. I've mine set to OFF and it still flashes on access.

What speeds are you getting? In slot 3 I'm struggling to break 1,500Mb/s with the same setup.
MP4,1/MP5,1 are PCIe 2.0 and limited to ~1500MB/s with a x4 connection - all M.2 blades are x4. Only a PCIe 3.0 switched card will convert slow and wide PCIe 2.0 x16 into narrow and fast PCIe 3.0 x4. kryoM.2 is just a format adapter (PCIe x4 to M.2) and don't have a switch.

MP7,1 is PCIe 3.0, any slot will get the maximum speed of the blade.
 

edgerider

macrumors 6502
Apr 30, 2018
281
149
Does anyone know if macpro 7.1 support pcie bifurcation, it has a dynamic lane allocation software and pcie switch onboard so that theorically support pcie bifurcation, and maybe we could use cheap passive 4x ssd pc adapter to get 4 blade on a 16 slot.
 
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