[clug] 10GBASE-T networking only two computers together
George at Clug
Clug at goproject.info
Wed Aug 21 08:03:51 UTC 2019
Am I correct in thinking that SFP+ is fibre ?
SFP stands for small form-factor pluggable. It is a compact, hot-swappable optical transceiver module that used in telecommunications and data communications networks.
My set up was going to be two Ryzen 3900x PCs acting as hypervisors each with one 10gbase-t ethernet cards directly connected by Cat6a, with no switch involved. Less than a meter between the two computers.
Simple, cheap and maybe a bit nasty, but should provide good bandwidth for replication between the two computers? At least faster than the disk drives I would be using.
Just not sure what is the best technology to use for the replication. Some of my ideas so far are DRDB or GlusterFS or something else?
Not sure what is best for sharing storage, NFS or iSCSI or something else?
I am open for suggestions.
Ethernet cable with higher bandwidth such as Cat6 cable, Cat6a cable and Cat7 cables are introduced for high-speed applications of 10GBASE-T.
On Wednesday, 21-08-2019 at 15:19 Steve Walsh via linux wrote:
> Hi George
> On 19/8/19 12:41 pm, George at Clug via linux wrote:
> > I checked https://www.graysonline.com/search.aspx?q=10Gbps this morning and no 10Gbps ethernet cards on sale this morning.
> > https://www.graysonline.com/lot/0001-2177274/computers-and-it-equipment/dell-quad-port-10gbase-t-server-module-hot-swap-4x-10gbase-t-ports?spr=true
> > However I had not realised that they can be purchased even from MSY for less that $200. I might have to get two.
> > https://www.msy.com.au/asus-xg-c100c
> > Thanks,
> > George.
> There's also some offering from Mikrotik that support 10G SFP+ that are
> under the $500 mark
> 'CRS305-1G-4S+IN: Five-port desktop switch with one Gigabit Ethernet
> port and 4 SFP+ 10Gbps ports'
> 'CRS309-1G-8S+IN: Desktop switch with one Gigabit Ethernet port and
> eight SFP+ 10Gbps ports'
> you can connect your 10G machines to these with either a SFP+ fibre
> module and fibre patch leads, or with a DAC (Direct Attached Copper) cable
> 'S+DA001: SFP/SFP+ direct attach cable, 1m'
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