rsync - Mar 2017 - rsync transfer slow over network

Hello,



We have our mac connected to a SAN via 10Gbe fiber network. Being thunderbolt
model macs with no PCI slots we are using external boxes (Sonnet, ATTO) to
interface between the thunderbolt and fiber connections.



When using rsync -avvPhi we get speeds of approx 110MB/s but with a simple
drag-and-drop we get speeds of approx 620MB/s. BIG difference. We get the same
speeds (roughly) whether we connect afp or smb.



Anyone have any suggestions for what to do to make the rsync transfer faster?
These are local transfers with the SAN showing up as a shared drive on the
desktop.



Thanks!
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Rsync is notoriously slow when used for a local copy.  You are better
off doing something like a cp -au.

On 03/06/2017 06:47 PM, McDowell, Blake wrote:
> Hello,
> 
>  
> 
> We have our mac connected to a SAN via 10Gbe fiber network. Being
> thunderbolt model macs with no PCI slots we are using external boxes
> (Sonnet, ATTO) to interface between the thunderbolt and fiber connections.
> 
>  
> 
> When using rsync -avvPhi we get speeds of approx 110MB/s but with a
> simple drag-and-drop we get speeds of approx 620MB/s. BIG difference. We
> get the same speeds (roughly) whether we connect afp or smb.
> 
>  
> 
> Anyone have any suggestions for what to do to make the rsync transfer
> faster? These are local transfers with the SAN showing up as a shared
> drive on the desktop.
> 
>  
> 
> Thanks!
> 
> 
> 
-- 
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	Kevin Korb			Phone:    (407) 252-6853
	Systems Administrator		Internet:
	FutureQuest, Inc.		Kevin at FutureQuest.net  (work)
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