Jorgen Udvang
Subscriber Member
I'm starting to get error messages on my MBP 15 when I run DaVinci Resolve 17. Either there's something wrong with the DaVinci, or it's time to upgrade...
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Apple M1, a revolution in the making?
- Thread starter Jorgen Udvang
- Start date
k-hawinkler
Well-known member
ssd swap - high usage of Terabytes Written
What an awesome find. Thanks for posting this. We finally have an Apple endorsed reading of the SMART data. Not that there was any doubt in my mind anyway but it is great to have ultimate confirmation.
forums.macrumors.com
k-hawinkler
Well-known member
Quote:”
”
What an awesome find. Thanks for posting this. We finally have an Apple endorsed reading of the SMART data. Not that there was any doubt in my mind anyway but it is great to have ultimate confirmation.
”
k-hawinkler
Well-known member
Quote:”
”
It is direct confirmation from Apple developed software that the third-party SMART monitoring tools are producing accurate results. You can look at the Apple log and compare Data Units Written and Percentage Used to see that they match the third-party tools.
”
k-hawinkler
Well-known member
Quote:”
So we can now with pretty much full certainty say that these 256GB SSDs are rated for 1200-1600 TBW by taking the official Apple percentage used value.
I think it’s safe to say the majority of people who never even noticed the SSD write issue will not have their mac’s SSD die in them during the lifetime of their mac.
And now with 11.4 out, the issue largely resolved, I think it’s pretty much safe to say the issue is no more.
”
So if I take for a 256 GB (I.e. ¼ TB) SSD your above value of 1200 TBW, then that implies 4 * 1200 = 4800 writes per cell. And your above value of 1600 TBW would imply 4 * 1600 = 6400 writes per SSD storage cell. YEAH!
Previously I quoted the Toshiba number of 3000 writes per SSD storage cell.
Well, this is even much better.
Problem truly laid to rest for the vast majority of M1 users. Amen.
So we can now with pretty much full certainty say that these 256GB SSDs are rated for 1200-1600 TBW by taking the official Apple percentage used value.
I think it’s safe to say the majority of people who never even noticed the SSD write issue will not have their mac’s SSD die in them during the lifetime of their mac.
And now with 11.4 out, the issue largely resolved, I think it’s pretty much safe to say the issue is no more.
”
So if I take for a 256 GB (I.e. ¼ TB) SSD your above value of 1200 TBW, then that implies 4 * 1200 = 4800 writes per cell. And your above value of 1600 TBW would imply 4 * 1600 = 6400 writes per SSD storage cell. YEAH!
Previously I quoted the Toshiba number of 3000 writes per SSD storage cell.
Well, this is even much better.
Problem truly laid to rest for the vast majority of M1 users. Amen.
Last edited:
k-hawinkler
Well-known member
ssd swap - high usage of Terabytes Written
1% in 7 months, that’s 100% in 58 years. ;)
forums.macrumors.com
Quote:”
1% in 7 months, that’s 100% in 58 years.
”
Extrapolating from these numbers my 2 TB SSD should be at 1% when it has 100 TBW.
After 4.5 months of use it’s at less than 6.5 TBW.
Did I mention before that I like overkill - unless I decide to fill up the SSD with my data.
A good rule of thumb is that an M1 SSD can take about 5,000 TBW per 1 TB, so 10k TBW for 2 TB capacity.
Last edited:
k-hawinkler
Well-known member
ssd swap - high usage of Terabytes Written
XNU is the name of macOS's kernel. So this was a kernel bug. https://en.wikipedia.org/wiki/XNU
forums.macrumors.com
k-hawinkler
Well-known member
Think twice before doing an erase/reinstall on your M1
This thread is obsolete, for the most part. The Apple instructions have been updated. I'm surprised you're still having the issue. These are the up to date instructions: https://support.apple.com/en-us/HT212030 The good news is that apparently Apple learned from this issue, and with OS12, you...
forums.macrumors.com
Use Disk Utility to erase a Mac with Apple silicon - Apple Support
How to erase (format) the built-in startup disk of a Mac with Apple silicon.
Knorp
Well-known member
Capture One M1 Benchmark Test Results - DT Photo
Recently Capture One was updated to natively support M1 Processors; DT took this as an opportunity to develop a standardized benchmark for Capture One using Applescript. We’re glad to share the initial results below, with special thanks to our many customers who ran the benchmark on their own...
www.photo-digitaltransitions.com
K-H
I saw somewhere in this thread that you are using some OWC device for TB and USB connections on your M1.
Is that TB4 now? And what about my TB2 RAID drives?
I have one TB3 RAID drive I currently use with TB3 to TB2 Apple adapters on my maxed out 2013 garbage can 8 core Mac Pro. I like it so much that I was almost ready to get an old, new stock 12 core from OWC, but with the release of even "bigger" M1 Macs on the late 2021 horizon I will sit on the sidelines. For some strange reason I am getting beach balls every 4-5 days upon start up when opening/viewing Mail and must restart it to clear out issue. Otherwise all other processing needs work smoothly with the OWC 2TB Aura Pro X and 64GB RAM. It has come to mind that my 2 D700 video cards might be on their last legs.
I saw somewhere in this thread that you are using some OWC device for TB and USB connections on your M1.
Is that TB4 now? And what about my TB2 RAID drives?
I have one TB3 RAID drive I currently use with TB3 to TB2 Apple adapters on my maxed out 2013 garbage can 8 core Mac Pro. I like it so much that I was almost ready to get an old, new stock 12 core from OWC, but with the release of even "bigger" M1 Macs on the late 2021 horizon I will sit on the sidelines. For some strange reason I am getting beach balls every 4-5 days upon start up when opening/viewing Mail and must restart it to clear out issue. Otherwise all other processing needs work smoothly with the OWC 2TB Aura Pro X and 64GB RAM. It has come to mind that my 2 D700 video cards might be on their last legs.
k-hawinkler
Well-known member
Well Lou,Apple advertises their ports as Thunderbolt / USB 4.
I believe Apple doesn't satisfy all the protocols inherent in Thunderbolt 4.
So they call it Thunderbolt. It has the same connector as USB 4.
Speed-wise Apple's Thunderbolt 3 or now Thunderbolt ports were always 40 Gbit/s.
The same wasn't true for some PC Thunderbolt 3 ports. They ran at a lower speed.
But now all PC Thunderbolt 4 ports have to run at 40 Gbit/s AFAIK.
There are Thunderbolt 2 to Thunderbolt (TB), or TB3 or TB4 adapter cables that should work.
That assumes the RAID enclosures themselves are supported software-wise in macOS Big Sur.
My Firmtek TB2 RAID enclosures are so old that they need Mojave or Catalina.
So I keep Mojave on my late 2013 "trashcan" Mac Pro.
However I can access the new OWC TB3 RAID enclosures from the trashcan via adapters.
Lou, I hope this helps.
k-hawinkler
Well-known member
OWC ThunderBay 8 Eight-Bay External Drive with Thunderbolt 3
This latest addition to the ThunderBay line, introduced in 2014, now offers 8 drive bays for either 2.5 or 3.5-inch HDDs and/or SSDs in any combination.
eshop.macsales.com
I simply use Apple's Disk Utility to create RAID 0 SSDs or Hard Drivers.
OWC's Thunderbolt Docks you can find here:
OWC Thunderbolt Docks
Find the best dock for your Thunderbolt workflow so you can charge your devices, connect external drives, and much more with just one Thunderbolt cable.
eshop.macsales.com
Also I have several of these NAS drives:
Seagate Pro ST18000NT001 Replacement for Seagate Pro ST18000NE000 | B&H Photo Video
Shop B&H's in stock, large inventory for fast shipping, great service and everyday low prices on Seagate Pro ST18000NT001 Replacement for Seagate Pro ST18000NE000. For more info, please call 800-947-4415
I have this Dock:
and this one:
My M1 Mac mini has 2 Thunderbolt ports, each one with its own bus, so each one has separate 40 Gbit/s bandwidth.
Two of these Docks allow you to attach a total of 6 Thunderbolt or USB 4 devices.
If you want to attach a single SSD directly to a TB3 port, this is the one to get, but currently sold out.
OWC 2.0TB Envoy Pro FX Thunderbolt + USB-C... at MacSales.com
TB3ENVPFX02 (*) 2.0TB OWC Envoy Pro FX Thunderbolt + USB-C Portable NVMe SSD External Storage Solution. The fastest, most compatible portable drive ever made that works with yesterday's, today's and tomorrow's Thunderbolt and USB computers and devices. *New Condition, Open Box*
eshop.macsales.com
Don't get these:
OWC Envoy Pro SX - Thunderbolt Bus-Powered Portable SSD
The incredibly fast and rugged portable SSD drive for storage and backup tasks. Perfect for production-level audio, design, and photography workflows.
eshop.macsales.com
Here the cable cannot be detached.
Apple Thunderbolt 3 (USB-C) to Thunderbolt 2 Adapter
Buy Apple Thunderbolt 3 (USB-C) to Thunderbolt 2 Adapter at Amazon. Customer reviews and photos may be available to help you make the right purchase decision!
www.amazon.com
Is the 2 TB envoy pro sold out? The link above is an open box model, but they seem to be order-able from OWC:
eshop.macsales.com
OWC 2.0TB Envoy Pro FX Thunderbolt + USB-C Portable... at MacSales.com
TB3ENVPFX02 2.0TB OWC Envoy Pro FX Thunderbolt + USB-C Portable NVMe SSD External Storage Solution. The fastest, most compatible portable drive ever made that works with yesterday's, today's and tomorrow's Thunderbolt and USB computers and devices.
eshop.macsales.com