Hi, I want to buy this 10GB card but I check back that my nvme cache can only go up to 3000MB/s which defeat the purpose of 10GB transfer rate and I recently found the using of RAM disk/cache but don't really understand how it works. Can someone link any sources or elaborate it for me .

 

Anyone can help on how to achieve this 10GB transfer? And can recommend me a good 10GB card that use low watt usage with proper PCIE power management.

 

I plan to buy this card below.

 

Thanks.

 

 

I have played in my testsystem with melanox cards and a cheap SFP+ / 2,5 GHZ switch fromAmazon in my testsetup it worked fine

 

the card is called IBM Mellanox ConnectX-2 VPI 10GBE HCA Card 81Y1533 

bought them from this seller https://amzn.to/3LBz2fJ

and i used this switch VIMIN 6 Port 2.5G Unmanaged Network Switch, 4X 2.5Gbase-T Ports, 2X 10G SFP, 60Gbps Ethernet Switching Capacity https://amzn.to/3ZoxxqZ

 

it was easy recogniced in WIN 11 and also in Unraid

13 minutes ago, akhisyahmi said:

Hi, I want to buy this 10GB card but I check back that my nvme cache can only go up to 3000MB/s which defeat the purpose of 10GB transfer rate

 

 

 

 

I dont know where you got that one from but thats wrong

The 10 gbit card has roughtly 1.04GB/s of throughput

Your NVME does theoretically 40 gbit but equals in your case to around 3GB/s

Edited September 21, 20232 yr by Mainfrezzer

23 minutes ago, Mainfrezzer said:

around 3GB/s

Oh ya. Then it can maximize my nic then. The second is is there any way to make unraid weite on RAM rather than my nvme? So that I can avoid write/read tear from using it often. 

 

Well if it's possible. I think zfs can do that, don't really knowledgeable about this. Sorry. 

14 hours ago, akhisyahmi said:

my nvme cache can only go up to 3000MB/s

yeah, thats 3 times faster than 10G Lan :-)))

The real question is: how long can it sustain that speed?

Many cheap drives run out on cache fast and then the write speed drops to ridiculous low (even down to 0) values and slowly resumes afterwards.

For 10G LAN and transfers of bigger files without hickups, you need a very good nvme cache drive.

 

3 hours ago, MAM59 said:

you need a very good nvme cache drive

Noted, understand. For now im using Silicon Power NVME A80 1TB. Good enough? Or just a dumb brand?

2 hours ago, akhisyahmi said:

Silicon Power NVME A80 1TB. Good enough?

No idea. Some magazines here test these beasts now and then... lemme check if they know this one...

sorry, not in today's test and not in the one 6 months ago.

 

So, you will find it out :-)))

 

If transfers start fast with around 1Gb/s continue on this level for a while and suddenly break in, you know it is time to look for something better. A good one should be able to transfer 100Gb or more without stuttering.

5 minutes ago, MAM59 said:

If transfers start fast with around 1Gb/s continue on this level for a while and suddenly break in, you know it is time to look for something better. A good one should be able to transfer 100Gb or more without stuttering.

Thank you for the info. I will test it later when this card arrive.