which is faster 10/100/1000gbs or 10/20 gigbytes ethernet switch (unmanaged)

Data transfer question
Great day I am doing a migration. Moving people profile from one machine to another. I am pushing it up and pulling it down.
I am trying to locate a switch that will transfer really fast. Is there something faster than 10/100/1000gbs, is a 10gb or even 20gb ethernet unmanaged switch that is fast. keeping in mind there may be people that have over 100gb of data.
Melvin SandersAsked:
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Pushpakumara MahagamageVPCommented:
10/100/1000 is mbps not gbps you can have 10gbps it is faster 10 times than 1000mbps (gigabit) switch if avalable 20gbps is the fastest switch.
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Dr. KlahnPrincipal Software EngineerCommented:
The bottleneck in this operation is not the network speed, but the throughput of the systems involved, especially the bandwidth of the combined file and disk subsystems.

E.g., a 1 Gbps network can transfer at 128 MB/sec (raw, unpacketed, non-protocol speed),  but most systems would be very hard put to accept network traffic at that speed and move it to files on disk.  20 MB/sec to 30 MB/sec over a network is pretty good speed for moving random files between two Windows systems, in my experience.  Even at a relatively "slow" 30 MB/sec, a system moves 2 GB / minute.
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Jose Gabriel Ortega CEE Solution Guide - CEO Faru Bonon ITCommented:
Well you just need to understand that 100Gb of data the unit is (GigaBytes, and 1 byte are 8 bits).
Networking speed is "10/100/1000 megabits/s". so the difference between bytes and bits it's an 8 factor.

You can use a couple of switches that contains "parallel connections" so instead of having 1 10gb they will work as 2x10gb.
My recommendation would be: https://www.netgear.com/landing/10gigabit.aspx

or Cisco:
https://www.cisco.com/c/en/us/products/switches/catalyst-3850-series-switches/index.html
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Fred MarshallPrincipalCommented:
Just to be clear:
there may be people that have over 100gb of data.
b=bits; B=Bytes
M=Million or Mega; G=Giga (billion) [m=milli or 1/1000th, g=?]
It's unusual to quote bulk data in bits.  More usually, Bytes.  So, do you mean G?
So, may we take it that there may be people that have over 100GB of data?  That seems reasonable enough.

At issue may well be "how long will it take to transfer this much data?"
So, choosing 1000Mbps as the transfer rate as an example:
100GB/1000Mbps/10bits/Byte=1000Gb/1000Mbps = 1000Gb/1Gbps = 1,000 seconds.
(using 10 bits per Byte as a reasonable estimate in this kind of calculation - instead of 8).
But this is only an example of a *calculation* and not data transfer time.

As others have pointed out, the channel data rate SPEED CAPACITY may not be the realized SPEED (just like your automobile) and will be limited by other things like hard drive transfer rates.
It would be unusual to be doing multiple data transfers all at once - for a number of reasons including that the transfers (being slower and "bursty") are time-sharing the channels.  That's the only case where the switch or the link speeds might make a difference.
Suppose that one computer will transfer at 10MBps and there are 10 computers transferring up at the same time (and 10 computers transferring down of course).
That's 100MBps or 1000Mbps.  And IF the same cable is shared then that's a 1000Mbps link capacity.
You are most likely going to be limited by other things and *very* fast switches probably won't matter.
But, you can do the math.
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Lee W, MVPTechnology and Business Process AdvisorCommented:
I know I'm peripherally repeating what a few others have said, but I think they missed some points.

You have many potentials for bottleneck to slow you down, making the switch ALMOST irrelevant.

Factors that affect data transfer rates:
1. WHAT you're transferring - large files?  small files?
2. File fragmentation on the source media
3. Disk usage and how the disk is used on the destination media
4. Network adapters - their rated speeds - 1Gb is standard.  10Gb isn't but is an option on some servers.
5. Network adapter DRIVERS - poor drivers can see even 40 Gbit NICs slow down considerably.
6. Usage of the source disk at the time of copy.
7. Usage of the destination disk at the time of copy.
8. Usage of the NETWORK at the time of copy.
9. Network switch speed and switching capacity.
10. Type of disks copied from - both RAID/interface type (SATA/SAS/NVMe).
11. Type of disks copied to - both RAID/interface type (SATA/SAS/NVMe).
12. Cabling connecting the network at ALL points (the cable through the way, the cables from the patch panel to the switch, the cables from the wall jack to the PC/server)
13. The Patch panel itself
14. The protocols used to transfer the data.
(and I could very much be missing a few things).

What are you migrating to and from?  Servers?  You might want to do the migration differently.  Have you considered your options for file transfer?  I have an article with 4 common methods and the pros and cons of each. See:
https://www.experts-exchange.com/articles/29316/File-Server-Migration-Methods.html
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Gerald ConnollyCommented:
So what is the Total amount of data you need to transfer?

As Fred said, you need to use 10 bits per Byte on a comms link (including Ethernet), so 100GBytes will probably take at least 30-40 Minutes (ie 50% utilisation) if on a dedicated link, much longer if there is contention
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Melvin SandersAuthor Commented:
Very helpful. I purchase the  Netgear prosafe sx708 10gb
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