Whelp, I learned a lovely lesson about Lacie today. Their customer driver extensions on MacOS are ultimately as bad as I figured they would be and it seems to have bitten them in the ass. It seems their current drivers aren't compatible with M1 Mac minis (and I haven't seen a single post/article mentioning this). I was planning on migrating my Plex server from an i3 Mac mini to an M1 based device, but now I have to reshuffle my setup with another one of my computers due to lack of driver compatibility (and no advertised lack of support). I'm seriously considering getting rid of my Lacie 6Big at this point and swapping it out for an OWC thunderbolt 3 rack supported DAC. -_-. I'm hoping other people just read this because honestly, I have nothing but nasty remarks towards Lacie in this regarding considering their #1 use for their RAIDs involves the people who will be buying M1 Macs. Does anyone have a workaround for this?
LaCie 6Big - M1 Mac Mini Driver
I a having the same issue with my M1 Max. 45mb/Read 320/right at Raid 5. This broke my workflow :( Off loading my files now and changing to OWC
I have the same issue with my LaCie 6big TB3. Interestingly ONLY in RAID 5. When I re-initialize towards RAID 0, the read/write speed goes up to 1000 Mb/s+. I am in contact with LaCie support. We‘ll see….
Hi! Anyone has any news about this issue? Just bought my Mac Studio today and found out about this problem.. I have a LaCie 6big 84tb RAID 5 and same as everybody here I'm getting 50 mb/s write and 350 mb/s read speed. It's been so long and still no solution? What in the world
Hi Adam. I am also still experiencing the same issue as you, both my M1 Mac mini or my M1 Max Mac Studio. There's nothing we can do until Lacie fixes the driver.
Personally, I am moving away from Lacie. Either to another SAS or switch to NAS and Gigabit ethernet for future proofing.
Synology DiskStation DS1821+ or OWC ThunderBay 8
50MB/s write speed and 355MD/s read. Lacie 6Big on M1 Max. Any news?
Hi there, I’m also having the same issue with LaCie 6Big, on M1 Ultra Mac Studio. Has anyone found a solution to this? Getting around 50mb read and about 400mb write.
This popped up this morning. (macOS 12.3.1). Potential to disrupt on a future macOS update?
Refers to this:
LaCieMvumi:
Version: 1.3.22
Last Modified: 19/10/2021, 11:32 am
Bundle ID: com.lacie.driver.mvumi
Notarized: Yes
Loaded: Yes
Obtained from: Identified Developer
Kind: Universal
Architectures: arm64e, x86_64
64-Bit (Intel): Yes
Location: /Library/Extensions/LaCieMvumi.kext
Kext Version: 1.3.22
Load Address: 18446741874802737000
Loadable: Yes
Dependencies: Deprecated
Signed by: Developer ID Application: Seagate Technologies LLC (57HJ3KH2XC), Developer ID Certification Authority, Apple Root CA
Hi everyone, The solution is finally here ! I've been calling Lacie for a while explaining the problem of slowness with my Lacie 6big and the apple M1. They told me it was a problem of compatibility and driver and they were trying to fix it. Yesterday they call me back to tell me that they fixed the problem :
You have to download the last version of the lacie raid manager : 2.9.3.225 and active the permisions on your mac when you install the software.
Now I've got around 800Mb/s write and read in thunderbolt 3 and raid 5. Hope this will help you!
SUCCESS! THANK YOU LACIE!
Using the process described by fematheron above it's now back to peak performance.
Me: 2022 Mac Studio M1 Max
- 5Big Thunderbolt 2 20TB
- RAID 5
- WD Red Pro WD4003FFBX drives
- Cables: OEM Lacie TB2 cable into Apple TB2 to TB3 adaptor
- Ports: rear TB port on Mac Studio
Lacie website specs state performance benchmark for a 5Big 20TB in RAID 5 should be:
- 720 MB/s Write
- 700 MB/s Read
Black Magic Speed Test
1GB Stress File
- Initial peak of 701 MB/s Write, (average: 660~ MB/s over 3 mins)
- Initial peak of 680 MB/s Read, (average: 650~ MB/s over 3 mins)
5GB Stress File:
- Initial peak of 750 MB/s Write, (average: 540~ MB/s over 3 mins)
- Initial peak of 710 MB/s Read, (average: 550~ MB/s over 3 mins)
Hello all.
I am dealing with the very same issue when it comes to how slow my Lacie drive is. I have a brand new Mac Studio M1 Max running Ventura 13.2.1 OS. My Lacie 16Big has the latest firmware update. I have downloaded the latest Lacie RAID Manager (LaCie RAID Manager v2 for macOS 10.14 and above version 2.9.4.437) and it keeps saying 'A driver must be installed to use the LaCie RAID Manager'. I click install and a new prompt appears 'App permission required'. See screenshots.
I go to System Settings - Privacy & Security and all the necessary things have been enabled.
Needless to say, still no success in being able to update the drivers. I was on the phone last night for 2hrs with Lacie support who could not figure it out. They then said I needed to call Apple support which I did. Spent another 2hrs on the phone with them and they couldn't figure it out either. Their recommendation was to reinstall the OS system. Hell no, this Mac is 2 months old and there's no problem with the system.
If anyone has found a solution to this please walk me through your process and explain it to me like I'm a 5yr old.
Thanks.