Qnap 40GbE Network

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zkrr01
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Qnap 40GbE Network

Postby zkrr01 » Wed Jun 13, 2018 6:13 am

Has anyone got the QNAP Dual-Port 40GbE Network Expansion Card? Now that I have the Samsung 970 Pro SSD's on two workstations, I need a way to copy large files on the SSD's. I am currently using 10Gbe cards, but the Samsung SSD is about 3 times faster then the 10GbE cards are capable of.

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Don
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Re: Qnap 40GbE Network

Postby Don » Wed Jun 13, 2018 7:15 am

Are you maxing out the 10GB connection?
Read the Online Manuals and use the forum search feature before posting.

It is a recommended to use RAID and have external backups. RAID will protect you from disk failure, keep your system running, and data accessible while the disk is replaced and the RAID rebuilt. Backups will allow you to recover data that is lost or corrupted, or from system failure. One does not replace the other.

Submit bugs and feature requests to QNAP via their Helpdesk app.

NAS: TVS-882BR | F/W: 4.3.5.0728 | 40GB | 2 x M.2 SATA RAID 1 (System) | 4 x M.2 NMVe QM2-4P-384A RAID 5 (Cache) | 5 x 4TB HDD RAID 6 (Data) | 1 x Blu-ray
NAS: TVS-663 | F/W: 4.3.5.0728 | 16GB | 2 x M.2 NMVe QM2-2P RAID 1 (Cache) | 4 x 4TB RAID 5
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zkrr01
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Re: Qnap 40GbE Network

Postby zkrr01 » Wed Jun 13, 2018 8:19 am

Yes, a 10Gbe connection will handle about 1100MB/sec. A Samsung SSD Pro will do about 3500MB/s.

zkrr01
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Re: Qnap 40GbE Network

Postby zkrr01 » Fri Jul 06, 2018 4:23 am

I finally got a 40GbE network connection between two Windows 10 8920 Dell Workstations where I have the Samsung 970 PRO SSD's. On initial tests I am able to transfer 500 GB's of data at 2120 MB/s using the standard Microsoft drag/drop interface. Since the SSD's spec's show 3500 MB/s
read and 2700 MB/s write, the initial tests are a bit low since the overall transfer will be restricted by the write speed of 2700 MB/s.

I am using a Mellanox MCX4131A-BCAT ConnectX-4 Lx EN Network Interface Card 40GbE Single-Port QSFP28 PCIe3.0 x8 ROHS R6 NIC in each Dell 8920 Workstation. I have jumbo packets enabled.

Any recommendations on how to get the transfer speed from 2120 MB/s closer to the 2700 MB/s?

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Re: Qnap 40GbE Network

Postby QNAPDanielFL » Fri Jul 06, 2018 5:20 am

QNAP Just came out with a PCIe card that can take 4 M.2 NVMe SSDs and has a PCIe bandwidth of gen3X8. If you had 4 NVMe drives in raid 10 for example, I expect the write and read rates would be higher.

This card can go in either a QNAP NAS or a PC.
QM2-4P-384

zkrr01
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Re: Qnap 40GbE Network

Postby zkrr01 » Sat Jul 14, 2018 8:15 pm

I changed the Jumbo Packet size to 9614 and I am now able to achieve 2700MB/s writing to the Samsung Pro SSD.
I was using the following robocopy setup:
ROBOCOPY /MT:2 /MIR /R:0 /W:0 /LOG:G:\files.log /NP /NDL

zkrr01
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Re: Qnap 40GbE Network

Postby zkrr01 » Sat Sep 15, 2018 2:51 am

I am now able to achieve 3048MB/s writing to the Samsung Pro SSD using a packet size of 9614 bytes.

I was using the following robocopy setup:
ROBOCOPY /MT:1 /MIR /R:0 /W:0 /LOG:G:\files.log /NP /NDL \\Robin\g\Exported-Systems \\Eagle\g\Exported-Systems


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