Question Micron 9400 PRO 15.36TB Running HOT

blade8079 · Feb 28, 2024

Hi All,

Just received this one and put it in my windows PC as a video editing drive.
Connected via startech u.3 to pcie 3.0 (i have an older aorus x299 board with x7920)

I am measuring idle temps and it''s running pretty close to max 70C op temp even when idle. Haven't hit throttling yet but a bit strange. My other m.2 drives are running significantly cooler...
Also what are these 5 temperature sensors? Which one is most important? Any input? Anyone using same drive and care to share op temps?

Thank you!

Tech Junky · Feb 28, 2024

M2 and U3 drives are different beasts. Put a fan on it directly or switch brands. My Kioxia usually sits around 40. I went thru two micron's w/o checking the temps because they didn't last longer than a week

blade8079 · Feb 28, 2024

Thanks! Which model microns did you have?

Tech Junky · Feb 28, 2024

7450 pro iirc. They were a good price but nothing but crap but, someone I was talking to ended up ordering a couple and the only issue he had was temps being higher than he liked. Mine ended up dumping the partition table and became unusable after a few hours on one and less than a week on the other. First one went within 3-4 hours so I didn't put much effort into figuring it out and sent it back for a refund and ordered another one from a different seller. Put it in and did a firmware upgrade on it and all was fine for about a week and it ended up doing the same thing with the partition table and became unusable.

Since then though I've been seeing quite a few people having issues with them. It's a pitty because they have a good price and performance until they spazz out.

blade8079 · Feb 28, 2024

Read that a lot of microns crapping out in NAS (qnap, synology scenarios), but haven't heard anything windows. Will test and see how it is, hoping that my use case is pretty simple not to warrant any failures as I'm just using it for storage properties and 10gbps+ speed is fine for me as a video media source drive.

fzabkar · Feb 28, 2024

"Drive Temperature" is a composite temperature which is derived from a weighted average of the temperatures reported by the real, physical, on-die temperature sensors on the controller and NAND flash ICs (or perhaps a discrete temperature sensor IC).

Tech Junky · Feb 28, 2024

blade8079 said:
10gbps+ speed is fine for me as a video media source drive.

Well, 10gbps is only 125MB/s which is far less than even a basic SSD. If it's local system use then the sky is the limit but, if it's network based then it leads to a cascade of upgrades.

The OS running the drive shouldn't matter. I use the same M2 based drives in both Linux / Windows though. The system for the U drives though is running Linux and is a full sized PC vs the laptop I use Windows on.

AFAIK none of the consumer NAS boxes will even have the proper connector to insert a U drive inside of them w/o swapping some hardware or paying through the nose for a top tier "NAS" off the shelf. The lack of airflow in a "NAS" though would be my first red flag before venturing into anything NVME based SSDs. SATA though on the other hand would be fine as they don't get as hot.

Code:

SMART/Health Information (NVMe Log 0x02)
Critical Warning:                   0x00
Temperature:                        40 Celsius

As for use I leave it powered on 24/7 like a NAS because the PC is my router for the network and performs a few other functions. I've rebuilt it a few times since I started with it back in 2015. With the box handling everything it's quickly evident when there's a storage issue and things stop working in other areas. The Micron drives though were a bit odd in how they "fail". Things looked fine until I went to write new data to them after some period of time. Things became unusable after a reboot and thus no data existing after that point. On the 2nd one I noticed I/O errors when troubleshooting issues with it. I tried to dig into it knowing I didn't stand a chance post reboot of figuring out the cause. I dug through tons of different resources and attempted to get the drive operational again before giving up on yet another drive in such a short period of time.

The odd thing about it though is they would still show up in system outputs. However, couldn't be seen in fdisk or any disk utility.

If they're NEW then hammer them a bit while you're in the return period so you don't get into a drawn out RMA situation. RMA's always seem to take longer than a swap through a retailer and you end up with a refurb in the end. With what these thing cost though that's not a good place to be in at full price.

blade8079 · Feb 29, 2024

Thanks, speed-wise I meant 1GB/s. Now, idle temperatures have stabilized a bit and went down by additional 5 degrees or so.
In the mean time I've emailed micron to ask about throttling mode performance and trigger throttle temp. Will post once I get a reply from them.

My most intensive write application is copying about 2TB of data from 5 SD cards simultaneously (80mb/s each) and that will definitely let me see if throttle mode is engaged. My prior 2TB 970 EVO PLUS never throttled while writing this to the drive, but maybe it did, but not noticeable at 400mb/s write speed.

I was watching a video of disassembly of 30TB 9400 drive on youtube and noticed that 2nd half of nand is actually facing the board and probably heats up a lot so definitely not a good idea to get 30TB version as it will probably run VERY hot. 15TB ,on the other hand , should be a sweet spot as it cools into the case heatsink

Yeah I plan to load it up and see how it does on writing/reading side and then decide.

Shmee · Feb 29, 2024

Tech Junky said:
Well, 10gbps is only 125MB/s which is far less than even a basic SSD. If it's local system use then the sky is the limit but, if it's network based then it leads to a cascade of upgrades.

The OS running the drive shouldn't matter. I use the same M2 based drives in both Linux / Windows though. The system for the U drives though is running Linux and is a full sized PC vs the laptop I use Windows on.

AFAIK none of the consumer NAS boxes will even have the proper connector to insert a U drive inside of them w/o swapping some hardware or paying through the nose for a top tier "NAS" off the shelf. The lack of airflow in a "NAS" though would be my first red flag before venturing into anything NVME based SSDs. SATA though on the other hand would be fine as they don't get as hot.

Code:

SMART/Health Information (NVMe Log 0x02) Critical Warning: 0x00 Temperature: 40 Celsius

As for use I leave it powered on 24/7 like a NAS because the PC is my router for the network and performs a few other functions. I've rebuilt it a few times since I started with it back in 2015. With the box handling everything it's quickly evident when there's a storage issue and things stop working in other areas. The Micron drives though were a bit odd in how they "fail". Things looked fine until I went to write new data to them after some period of time. Things became unusable after a reboot and thus no data existing after that point. On the 2nd one I noticed I/O errors when troubleshooting issues with it. I tried to dig into it knowing I didn't stand a chance post reboot of figuring out the cause. I dug through tons of different resources and attempted to get the drive operational again before giving up on yet another drive in such a short period of time.

The odd thing about it though is they would still show up in system outputs. However, couldn't be seen in fdisk or any disk utility.

If they're NEW then hammer them a bit while you're in the return period so you don't get into a drawn out RMA situation. RMA's always seem to take longer than a swap through a retailer and you end up with a refurb in the end. With what these thing cost though that's not a good place to be in at full price.

Correction here, 10gbps is still around 1000MB/s, so faster than any single SATA drive can transfer. That said, a 10Gbps NIC will still bottleneck most modern NVMe drives.

Tech Junky · Feb 29, 2024

Shmee said:
Correction here, 10gbps is still around 1000MB/s, so faster than any single SATA drive can transfer. That said, a 10Gbps NIC will still bottleneck most modern NVMe drives.

Oops, dropped the 0. But, yeah two sata SSD drives worth of bandwidth on raid 0.

blade8079 said:
15TB

That's what I went with after finding U capacity being better for the price than several M2 drives in raid. To get there you would need at least two 8tb in raid 0 and that would be about $1600 where I could get a single U for under $1000.

blade8079 · Feb 29, 2024

Can these 9400's be TRIMmed like other SSDs and should they be?

Tech Junky · Feb 29, 2024

blade8079 said:
TRIMmed

It's all in the firmware.

Micron makes all of its solid state drives from the silicon up, and garbage collection is a vital part of the drive. Learn more about the process to manufacture SSDs.

thecoolnessrune · Mar 1, 2024

The Micron 9400 PRO is a 20-25W NVMe design in a 2.5" form factor. That's well over double what most 2.5" 15K spinning drives are and most 7.2K 3.5" spinning drives. It's 5x what many M.2 NVMe drives target. It's designed for servers that have linear data room temperature airflow coming across all bays. It's not designed to sit in a relatively static box with little to no airflow. You should definitely strap a fan onto this drive because even at idle it targets ~15W.

Igo69 · Mar 2, 2024

Are such high capacity drives being made/sold anymore? Cant find them on Newegg anymore

gdansk · Mar 2, 2024

Igo69 said:
Are such high capacity drives being made/sold anymore? Cant find them on Newegg anymore

Yes, but Newegg doesn't usually stock these expensive server parts.

If you check server part suppliers you may have better luck. CDW claims it has the 9400 Pro 15TB in stock, for example.

Tech Junky · Mar 2, 2024

https://wiredzone.com/shop/category/components-hard-drives-115?order=list_price+asc&filter=48-1371&filter=48-673&category=115

@Igo69

Igo69 · Mar 2, 2024

Tech Junky said:
https://wiredzone.com/shop/category/components-hard-drives-115?order=list_price+asc&filter=48-1371&filter=48-673&category=115

@Igo69

Fortunately for me all is out of stock or way too expensive

gdansk said:
Yes, but Newegg doesn't usually stock these expensive server parts.

If you check server part suppliers you may have better luck. CDW claims it has the 9400 Pro 15TB in stock, for example.

Do you know the names of vendors? thx

Tech Junky · Mar 2, 2024

Igo69 said:
vendors

Take the link and filter down to capacity/models and then Google through prices. They vary wildly though. I picked up my Kioxia on eBay for a lot less than traditional sites but, it's not always the best deal either. Also check the specs for models as they're not all going to perform the same. Some are more read speed and bad write speeds or the inverse.

thecoolnessrune · Mar 2, 2024

Igo69 said:
Fortunately for me all is out of stock or way too expensive

Do you know the names of vendors? thx

Any time you're purchasing parts designed for servers, you're going to have to do more homework on the Vendor. I recommend hanging around the Servethehome forums and finding out what other people use for their home labs if you're looking to find a fast track. There's lots of parts out there, including high density, and high performance SSDs that get dumped on eBay but were built for a specific system or ecosystem. Getting Firmware for a lot of these devices if you're not in the industry with connections to Partner and System Integrator portals can be next to impossible. They may be configured with things like Namespaces or out of spec behaviors that you can't adjust yourself. You may get a SSD you thought was well regarded in the home lab community but then you find out it's been loaded with an HPE specific firmware and you can't get it to work in your own system because it's a locked down server vendor's SSD and not an OEM SSD with vanilla firmware. It's not a new thing. In the older days when people were buying Servers with SAS backplanes and consumer Hard Drives people would wonder why their random SATA HDDs would drop out of the system, and it'd usually be down to some eccentric validation / firmware bug in the server's active backplane they couldn't get around. Doing this stuff in a home lab always carries risk, but you can mitigate some of it by reading through some of the other folks who have already walked down the path and "following the heard" so to speak.

blade8079 · Mar 3, 2024

Just an update on my experience so far.
The drive sits 2 slots below my geforce video which actually helps as when i turn on active cooling on geforce card (3 fans) they partially help to remove the heat from lower slots as well. I have 4 total case fans and 2 cpu ones so airflow is pretty good. Micron software uses "drive temperature" value (1st out of 5 sensors on the pic) and throughout my 2hr testing it never went above 58 C which is good imo. I did extended 3TB - 2hr write @450mb/s and simultaneous reading and encoding at about 400-500mb/s read. Combined about 1GBps.

Idle temp is about 50-51C

So far pretty happy as it's a vast amount of storage with no write cache issues like on m.2 drives. Just have to see on the stability over the next few weeks. I assume if i was using it at full spec PCI-e 4.0 or even 3.0 (3GB/s) I would probably need to investigate additional cooling but then I have about 10C extra to spare until it reaches 70C and potentially throttles.

In terms of availability it was pretty hard to find as they are rather new and not many secondary resales in North America right now. I decided not to get 7450 and went for the newer model right away. 7450 has quite a few resale ones going.

Question Micron 9400 PRO 15.36TB Running HOT

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