DS1618+ real world transfer rates

I’m going to buy the DS1618+ 4GB DDR4 I’m going to use 5 (WD4002FYYZ) WD 4TB Gold 7200 rpm HDDs in a raid 6 we have a gigabit Network I’m going to use Link aggregation my boss wants to know real world transfer rates
so I need to know individual computer transfer rates
and also with link aggregation combined multiple user transfer rates
the way we use the NAS is people download files to edit them and then they save them back to the NAS
and all files are accessed through the network

DS1618+ could go up to  2037.83 read and  624.25 write if filled with SSD and 10GbE card. But in your case, two drive redundancy will mean maximums transfer speed up to 300MB/s (with load balancing or link aggregation enabled). but the slowest thing in the chain will be your workstations. The maximum that card will be able to push through will be around 100MB/s (if your ethernet cables are not having interference or poor quality). You could get a USB dual LAN adapter to potentially double the transfer speed but next logical step would be a 10g upgrade if you need speeds greater then 100MB/s.



1GbE tests: Loaded with Seagate ST6000VN0001 6TB HDD (1GbE network environments)

Aggregated 1GbE SMB – Sequential Throughput (64KB)

read 450.79

write 442.70

Aggregated 1GbE SMB – Sequential Throughput via Encrypted Shared Folder (64KB)

read 450.58

write 356.44

1GbE SMB – Windows File Transfer (1MB file x 3000)

read 94.02

write 65.81

1GbE SMB – Windows File Transfer via Encrypted Shared Folder (1MB file x 3000)

read 82.01

write 43.57

1GbE AFP – Mac File Transfer (3GB file x 1)

read 94.46

write 93.35

1GbE AFP – Mac File Transfer (1MB file x 3000)

read 73.07

write 62.72




2 x 10GbE ports (1 x Intel X710-DA2 NIC); MTU 9000; connected to client PCs via Juniper QFX5100-48S-AFO switch

Aggregated 10GbE SMB – Sequential Throughput (64KB)

read 2037.83

write 624.25

10GbE iSCSI – Random IOPS (4KB)

read 38026.90 IOPS

write 27279.98 IOPS

These two tests were done with:

Fully loaded with Intel 535 Series 240GB SSDSC2BW240H6 SSD (10GbE network environments)


Cheapest 10gbe switches


Is link aggregated NAS faster?


Cheapest switch with Link Aggregation – (NIC Teaming)




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