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I just got a new NAS and am backing up my computer. I just wanted to know how long a 10Gb transfer should take over the network? I know there are many variables but am just curious as to how long you believe it should take. I have GB network but that I know has nothing to do with a NAS.
patriot pcnasvk35s2


It is connected directly to Ethernet 1GB switch. Nothing is wireless in the connection. It all goes through an AT&T router/modem from 2wire a 1702HG Gateway.

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For : the quick math and a useful reality check. A true 1 Gbps link can move about 125 MB/s, so 10 GB (decimal) at line rate would finish in roughly 80 seconds. Consumer NASes rarely hit line rate for sustained writes, though: typical large-file sequential speeds are often in the 40-110 MB/s band, which puts a 10 GB transfer between about 90 and 250 seconds. Many small files or heavy CPU/IO overhead can push that into many minutes or longer.

Key factors that change real throughput include NAS CPU and RAM, the disks used and their RAID layout, SMB/NFS protocol overhead and version, switch/router/cable quality, whether transfers are single-threaded, and any encryption or snapshot activity. Parity-based RAID adds write CPU work; mirrored RAID has a smaller write penalty but uses more capacity. Jumbo frames or link aggregation only help if every hop supports and is configured for them.

A good diagnostic sequence isolates network from storage. First test raw network capacity with iperf3 between two LAN hosts (NAS or another PC). Then run a single large-file copy to measure storage performance. Example commands:

# start server on one host
iperf3 -s

# on the other host, run a multi-stream test
iperf3 -c <NAS_IP> -P 4 -t 30

On Windows, use Robocopy for reliable large copies and multithreading:

robocopy "C:\LargeFolder" "\\NAS\Share" /MT:8 /NFL /NDL

Practical tuning steps: confirm NICs negotiate 1 Gbps full duplex, use Cat5e/6, bypass any slow ISP gateway for testing, update NAS firmware, check NAS CPU during writes, try different protocols (SMB vs FTP), and consider faster disks or a NAS with a stronger CPU if heavy backup throughput is required. Important caution: RAID is redundancy, not a substitute for backups. The one-line reply from to "just Google it" is not diagnostic; targeted tests above give measurable answers and clarify whether the bottleneck is the network, the NAS, or the drives.

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I have changed my mind. I will pay over $400 if need be to get a NAS that has some fast speed. Does the HP EX490 have fast file transfer speed? I don't know what the heck to do. I look at one article and it says a machine is fast the other says not. Would anyone be able to give me a good recommendation for a prebuilt one?

Member Avatar for Member #23858

I will be using this for mainly backup purposes but along down the road maybe things will change but for now backup and a lot of it. Is Raid 1 an important issue or raid 5 or 10? If so I probably need to look for a 4 bay unit but for now I have decided a 2 bay should suffice which would allow me to raid 1 if all believe it is important.

I have these 3 that I have narrowed it down to.

Seagate Blackarmor 220

Iomega StorCenter ix2-200


Synology ds209+, no not the 209 or 209+II but the 209+ I have a chance for some that remain.

All of these are about the same price. Different tests show each at around the same speed. All are rated good.
What is your take on these? Thanks for your help.

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Also, what about the QNAP TS-219P and the Thecus N3200? Does anyone know anything about any of these NAS machines?

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u can just search it on Google - The Best Tool !

For IT related services & questions just check it out @ http://vipsha.com

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