SANLink 2 10G SFP+: (Native?) support for Apple M-Series with Ventura

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  • Last Post 22 December 2023
Frank Born posted this 18 November 2022

After switching from an Intel Mac Pro (Trashcan) to a MacBook Pro (M1 Pro CPU), I can report the SANLink 2 10G SFP+ module works (Ventura 13.0.1). System was set up from a TimeMachine Backup of the Intel machine.

Only caveat at the moment: MTU size can't be set (stays on "automatic" and 1280; was manually optimized 8244 before); SANLink Utility is dysfunctional. From the server, read speed is good, writing speed is worse than before.

Anyone has a similar setup? Will there be a SANLink Utility for M-Series?

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R P posted this 22 November 2022

Hi Frank,

With Ventura the SANLink 2 uses a macOS driver, not a Promise driver, the SANLink Utility should not be used.

The MTU can be adjusted from Settings > Network > Thunderbolt Ethernet Slot 1 > Details > Hardware.

The slot number may be different in your MAC.

Frank Born posted this 23 November 2022

Hi RP, that is not entirely correct: The MTU size I used before (8244) is far outside the now allowed narrow range (1280 to 2034) and will be set back to 1280/automatic when a number outside that range is inserted; if you are with Promise and have any possibility to change that with Apple please do so. This is quite a performance killer.

Danial Hertz posted this 08 February 2023

Hi Frank,

With Ventura the SANLink 2 uses a macOS driver, not a Promise driver, the SANLink Utility should not be used.

The MTU can be adjusted from Settings > Network > Thunderbolt Ethernet Slot 1 > Details > Hardware.

The slot number may be different in your MAC.

I'm working on it. I'll let you know

Hi Jovan, did you manage to adjust the setting? I can't even find the Thunderbolt Ethernet slot 1 in my settings. Could you please help me with that?

gary jowett posted this 06 March 2023

Plus One for me too, 3 edit suites in production and 4 more to setup.  Eagerly waiting for a solution.

Thanks for your effort Jovan.

Benni Wasmer posted this 22 December 2023

[...] I can report the SANLink 2 10G SFP+ module works (Ventura 13.0.1). [...]

Hey everyone, do I understand you, Frank, correctly that the SANLink 2 10G SFP+ worked for you on an M1 Ventura system fine with the exception of the package size?

I make from the discussion that the SANLink works just without the Software utility but the OS does just communicate with the interface out of the box?

I am just trying to clarify this since I am looking to buy one used and basic operation with roughly 8Gb/s would be sufficient for my application.

Frank Born posted this 22 December 2023

Hey Benni,

other than the almost fixed MTU size the hardware works out of the box and is stable.

Cheers, Frank

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