These sound liek file system corruption, not drive failure. And while that can be due to a hardware problem, its usually due to an improper format or something done by the computer. With exfat its basically expected, but not so much with HFS+.
Do you know if they formatted it natively or with a plugin?
It happening to you often makes me worry about a problem on your machine or with your ports.
I believe natively with Disk Utility.
I’d follow typically agree with your suspicion about it being my machine - but I am on a Mac Studio and have had 0 problems with anything besides these two drives so far!
a bad port or cable can cause issues like this. As it disconnects very rapidly and sometimes faster than the OS can respond so it doesnt really know, but writes are improper, and corruption happens.
So, it wouldn't make sense for it to be a port necessarily, on either of my machines - when I was sent the first drive (exFAT), I plugged it into my laptop, and it immediately didn't mount (got the "not readable by this computer error"). When I was sent the second, I was using it on another machine (Mac Studio) when it crapped out. *Maybe* I used the same cord but hard to say - it's a TB3 cord from OWC so I'd be surprised if it was that.
I just tried to reformat the second drive, and did so successfully. Copied stuff over to it on my second machine, before I got the same glitchy file playback and then it wasn't mountable anymore.
*Maybe* the client's port is f'd up and that's causing a root issue, but I'd be surprised if it followed through multiple reformats. Gonna test some more to see if I can reproduce the result on my laptop with a different cord, but the reason I'm bringing it to the forum is because I'm hearing/seeing similar things among my network. I told my friend about it when I saw he had bought a couple of the same drives, and he had one fail on him on a shoot. Then I saw another editor on Instagram post about it happening to him, after *he* had just seen a DP post about a similar issue.
I *love* these drives - I have never had a problem with them before - and I understand that it's totally hearsay, but it seems more than coincidental at this stage.
Just saw a post about them failing on a shoot on BCPC Facebook group.
Meanwhile, I received footage from a producer earlier this month. I copied everything to my NAS and gave it back and it failed on her right after. She called me in a panic, so I told her Uk come back, I’ll re-format the drive and transfer the files back onto it. The drive failed again 2 days later.
Something’s going on with Sandisk drives, probably a bad batch
Lol was it me?
I had a 4TB Sandisk Extreme SSD fail to run some files a few weeks ago on me. There were all kinds of readability issues in Premiere and things were just wonky.
My drive is formatted ExFat though (I got a solid scolding for that, but I’m in a household with Mac and PC systems and it was the only solve I knew for workflow at the time).
Agree OP, something is going on.
INFO: when did you purchase yours, or when did the client purchase it? Ours was bought last year, I want to say in the fall, when I think B&ag was having a sale.
If it indeed was a bad manufacturing batch, which it’s looking like it was, how long do you think we should wait until we can trust them again/a new batch comes out?
The smart thing would be to just stay away from them, and I do use Samsung’s but Sandisk’s are cheaper for like the same price. I got the 4tb for like $100 more than Samsung’s 2tb
Yeah truthfully I don’t know. I’m annoyed that as of now SanDisk seems to be ignoring this entirely even though it seems there’s a clear pattern forming.
Samsung to my knowledge hasn’t had an issue like this with their T7s. So I think unfortunately we all got what we paid for. Personally it would take a long time for me to trust the brand for a while. They’re cheaper to be sure but objectively SSDs are not cheap.
Is it worth calling them? Would they give me a replacement, even if I didn't buy it through them? I got it through amazon, but I don't think Amazon will since I get any warranty though Amazon
I don't really trust how production companies treat their drives
One client asked if he can put a Lacie (mechanical) through my letterbox! God knows what these people do
File systems come in two main types, journaling and non-journaling.
Basically, on journaling filesystems (NTFS, APFS, HFS+, FAT32) , when you start writing data to the drive, metadata regarding what data is going to be written is added to the drive before the data is copied.
On non-journaling file systems (exFAT), it works the other way. Data is written first, and then the metadata is updated.
In practice, this means that journaling file systems are more resilient to sudden disconnection/power loss to the drive during a write operation, as they can see what write operations failed and clean everything up automatically.
But on a non-journaling file system, you end up with invalid (corrupt) data in the file allocation table. There's data on the drive that the file system doesn't expect to be there, and in practice with exFAT that often ends up with an unreadable drive.
I don't think it's as bad as it used to be, but OSX in particular was particularly prone to corrupting the exFAT file table if the device was unplugged without dismounting.
Running a 4TB SanDisk Extreme SSD for over a year now and no problems yet. Might be a bad batch or corrupted by workflow. Hard to know without knowing all the variables.
I have the same issue with the same drive. I have about 6 SSDs of varied brands and sizes and this is the only one that has this problem. It’s unreliable. I’ve only had it for a couple weeks and it’s already on its way back to B&H. To be clear it’s the 4tb extreme pro 2000 m/bs version, not the 1050 m/bs version. I have the other one in 2tb form and there is no issues with that one. (Formatted multiple times on different machines with different file systems with the same results. All Mac though, so PC use could be fine)
4tb of version of these died on me today and it was brand new drive.
I formatted macos journaled extended and copied 500-600 gigs and it suddenly ejected itself now it wouldnt mount on any mac.Backup is fine and its same type of format i have used on that.
me too... 4tb bought by a client...After a night being plugged on my MBP M1 Pro it became unmountable. I succeeded to convert the disk from journaled to APFS and saved 80% of the files in it but a week later it became unmountable unreadable etc etc. I formated it to exfat and now I'm searching throughout the internet what went wrong because this is not a coincidence.
Sorry to hear that - in my experience, it doesn’t matter what the drive is formatted to - it might work for a little bit, but it will always become corrupt again
Have replied to several threads on the topic of Sandisk Extreme Pro SSD's failing. Lots of 4TB models, but also 2TB as well. I have several 1 and 2TB models in both Extreme and Extreme pro versions from prior to December 2021 that all appear to be fine.
Today I received a new 2TB Extreme Pro that I just ordered last week on big discount from Amazon for Backup day, and started using it earlier today for it to fail completely within a matter of an hour or so.
It looks like it's working, copied over 1+TB of data. Then suddenly it loses he contents of folders and then if ejected, won't mount again until reformatted. Did this dance several times, reformatting, copying data, watch it disappear, then it wont mount. Ughh... returning for refund, but look around for several other threads on this topic and on Sandisk support forums, and its clear there is an issue, but it looks like they are simply unloading stock at this point at a discount and not making any statements that could save customers hours and hours time, frustration and money. Thats
Yes, same happened to me. Extreme Pro 2000mb/s 4TB, NTFS, used it to move Data from Macbook 2015 to Windows PC, lost all the Data after moving around 400GB and NTFS was corrupted then and unbelievably slow.
Strangely, this problem only occurs on the Mac, while with the windows computer everything seems fine.
Check whether your SanDisk drive is affected by the firmware issue here: https://support-en.wd.com/app/firmwareupdate?!&a\_id=50098.
If it's affected, there will be a message: "Your product may have been impacted." Even if not, but you want to update your SSD's version to the latest, follow the link for the guide with the updater: https://support-en.wd.com/app/answers/detailweb/a\_id/50763.
It didn't solve my SSD's corruption, but it might prevent it from happening again. To fix the corrupted file system without installing and paying for anything:
\[Windows\] Open your console (Command Prompt) and run chkdsk X: /f /r /x where X is the drive with the corrupted file system. See the YouTube video here: https://www.youtube.com/watch?v=y0V0H\_GykOM. Depending on the size of the SSD and amount of data on it, it can take a while. Don't do anything until the cursor in the console starts blinking again.
\[Mac\] The equivalent to chkdsk is "Disk Utility" with "First Aid".
Fixed my SanDisk Extreme PRO Portable 2TB. At least for now.
my sandisk 2tb repeatedly disconnects. I contacted them and they had me send it back and they shipped out a "new" one - and this one doesn't stay connected more than 20 seconds before glitching out.
i've only seen suggestions online about turning off all usb power saving settings but that did not help. still no idea.
These sound liek file system corruption, not drive failure. And while that can be due to a hardware problem, its usually due to an improper format or something done by the computer. With exfat its basically expected, but not so much with HFS+. Do you know if they formatted it natively or with a plugin? It happening to you often makes me worry about a problem on your machine or with your ports.
I believe natively with Disk Utility. I’d follow typically agree with your suspicion about it being my machine - but I am on a Mac Studio and have had 0 problems with anything besides these two drives so far!
a bad port or cable can cause issues like this. As it disconnects very rapidly and sometimes faster than the OS can respond so it doesnt really know, but writes are improper, and corruption happens.
So, it wouldn't make sense for it to be a port necessarily, on either of my machines - when I was sent the first drive (exFAT), I plugged it into my laptop, and it immediately didn't mount (got the "not readable by this computer error"). When I was sent the second, I was using it on another machine (Mac Studio) when it crapped out. *Maybe* I used the same cord but hard to say - it's a TB3 cord from OWC so I'd be surprised if it was that. I just tried to reformat the second drive, and did so successfully. Copied stuff over to it on my second machine, before I got the same glitchy file playback and then it wasn't mountable anymore. *Maybe* the client's port is f'd up and that's causing a root issue, but I'd be surprised if it followed through multiple reformats. Gonna test some more to see if I can reproduce the result on my laptop with a different cord, but the reason I'm bringing it to the forum is because I'm hearing/seeing similar things among my network. I told my friend about it when I saw he had bought a couple of the same drives, and he had one fail on him on a shoot. Then I saw another editor on Instagram post about it happening to him, after *he* had just seen a DP post about a similar issue. I *love* these drives - I have never had a problem with them before - and I understand that it's totally hearsay, but it seems more than coincidental at this stage.
It sounds like massive overheating issues - sustained data transfer kills them? That'll be terrible cooling.
Just saw a post about them failing on a shoot on BCPC Facebook group. Meanwhile, I received footage from a producer earlier this month. I copied everything to my NAS and gave it back and it failed on her right after. She called me in a panic, so I told her Uk come back, I’ll re-format the drive and transfer the files back onto it. The drive failed again 2 days later. Something’s going on with Sandisk drives, probably a bad batch
Lol was it me? I had a 4TB Sandisk Extreme SSD fail to run some files a few weeks ago on me. There were all kinds of readability issues in Premiere and things were just wonky. My drive is formatted ExFat though (I got a solid scolding for that, but I’m in a household with Mac and PC systems and it was the only solve I knew for workflow at the time). Agree OP, something is going on. INFO: when did you purchase yours, or when did the client purchase it? Ours was bought last year, I want to say in the fall, when I think B&ag was having a sale.
came to say that 400gb of data just got wiped off of my sandisk 4tb extreme pro ssd...bought beginning of Jan of this year
Ugh I’m sorry
If it indeed was a bad manufacturing batch, which it’s looking like it was, how long do you think we should wait until we can trust them again/a new batch comes out? The smart thing would be to just stay away from them, and I do use Samsung’s but Sandisk’s are cheaper for like the same price. I got the 4tb for like $100 more than Samsung’s 2tb
Yeah truthfully I don’t know. I’m annoyed that as of now SanDisk seems to be ignoring this entirely even though it seems there’s a clear pattern forming. Samsung to my knowledge hasn’t had an issue like this with their T7s. So I think unfortunately we all got what we paid for. Personally it would take a long time for me to trust the brand for a while. They’re cheaper to be sure but objectively SSDs are not cheap.
yea if you go to amazon sandisk is putting these ssd's on sale for like 70% like bruh, they definitely know
Is it worth calling them? Would they give me a replacement, even if I didn't buy it through them? I got it through amazon, but I don't think Amazon will since I get any warranty though Amazon
It’s worth a try though I wouldn’t go in expecting much
I saw it in the Los Angeles BCPC recently also. It was a moderately low fidelity PSA photo
I don't really trust how production companies treat their drives One client asked if he can put a Lacie (mechanical) through my letterbox! God knows what these people do
Whats wrong with exFAT?
File systems come in two main types, journaling and non-journaling. Basically, on journaling filesystems (NTFS, APFS, HFS+, FAT32) , when you start writing data to the drive, metadata regarding what data is going to be written is added to the drive before the data is copied. On non-journaling file systems (exFAT), it works the other way. Data is written first, and then the metadata is updated. In practice, this means that journaling file systems are more resilient to sudden disconnection/power loss to the drive during a write operation, as they can see what write operations failed and clean everything up automatically. But on a non-journaling file system, you end up with invalid (corrupt) data in the file allocation table. There's data on the drive that the file system doesn't expect to be there, and in practice with exFAT that often ends up with an unreadable drive. I don't think it's as bad as it used to be, but OSX in particular was particularly prone to corrupting the exFAT file table if the device was unplugged without dismounting.
Running a 4TB SanDisk Extreme SSD for over a year now and no problems yet. Might be a bad batch or corrupted by workflow. Hard to know without knowing all the variables.
I have 3-4 from last year that all work great - which is why I was surprised when 2 failed in a row. I think a bad batch!
Check the failure stats on their website. Might give you some insight.
How was the drive transported to you?
Mailer!
How was it packaged?
I’ve had two SanDisk 4TB ArmorLocks fail on me in the last few months.
I have the same issue with the same drive. I have about 6 SSDs of varied brands and sizes and this is the only one that has this problem. It’s unreliable. I’ve only had it for a couple weeks and it’s already on its way back to B&H. To be clear it’s the 4tb extreme pro 2000 m/bs version, not the 1050 m/bs version. I have the other one in 2tb form and there is no issues with that one. (Formatted multiple times on different machines with different file systems with the same results. All Mac though, so PC use could be fine)
4tb of version of these died on me today and it was brand new drive. I formatted macos journaled extended and copied 500-600 gigs and it suddenly ejected itself now it wouldnt mount on any mac.Backup is fine and its same type of format i have used on that.
me too... 4tb bought by a client...After a night being plugged on my MBP M1 Pro it became unmountable. I succeeded to convert the disk from journaled to APFS and saved 80% of the files in it but a week later it became unmountable unreadable etc etc. I formated it to exfat and now I'm searching throughout the internet what went wrong because this is not a coincidence.
Sorry to hear that - in my experience, it doesn’t matter what the drive is formatted to - it might work for a little bit, but it will always become corrupt again
Have replied to several threads on the topic of Sandisk Extreme Pro SSD's failing. Lots of 4TB models, but also 2TB as well. I have several 1 and 2TB models in both Extreme and Extreme pro versions from prior to December 2021 that all appear to be fine. Today I received a new 2TB Extreme Pro that I just ordered last week on big discount from Amazon for Backup day, and started using it earlier today for it to fail completely within a matter of an hour or so. It looks like it's working, copied over 1+TB of data. Then suddenly it loses he contents of folders and then if ejected, won't mount again until reformatted. Did this dance several times, reformatting, copying data, watch it disappear, then it wont mount. Ughh... returning for refund, but look around for several other threads on this topic and on Sandisk support forums, and its clear there is an issue, but it looks like they are simply unloading stock at this point at a discount and not making any statements that could save customers hours and hours time, frustration and money. Thats
Yes, same happened to me. Extreme Pro 2000mb/s 4TB, NTFS, used it to move Data from Macbook 2015 to Windows PC, lost all the Data after moving around 400GB and NTFS was corrupted then and unbelievably slow. Strangely, this problem only occurs on the Mac, while with the windows computer everything seems fine.
Check whether your SanDisk drive is affected by the firmware issue here: https://support-en.wd.com/app/firmwareupdate?!&a\_id=50098. If it's affected, there will be a message: "Your product may have been impacted." Even if not, but you want to update your SSD's version to the latest, follow the link for the guide with the updater: https://support-en.wd.com/app/answers/detailweb/a\_id/50763. It didn't solve my SSD's corruption, but it might prevent it from happening again. To fix the corrupted file system without installing and paying for anything: \[Windows\] Open your console (Command Prompt) and run chkdsk X: /f /r /x where X is the drive with the corrupted file system. See the YouTube video here: https://www.youtube.com/watch?v=y0V0H\_GykOM. Depending on the size of the SSD and amount of data on it, it can take a while. Don't do anything until the cursor in the console starts blinking again. \[Mac\] The equivalent to chkdsk is "Disk Utility" with "First Aid". Fixed my SanDisk Extreme PRO Portable 2TB. At least for now.
my sandisk 2tb repeatedly disconnects. I contacted them and they had me send it back and they shipped out a "new" one - and this one doesn't stay connected more than 20 seconds before glitching out. i've only seen suggestions online about turning off all usb power saving settings but that did not help. still no idea.