[Nottingham] scp on the go slow?

Martin martin at ml1.co.uk
Tue Feb 5 10:23:38 UTC 2013


On 05/02/13 09:39, Jason Irwin wrote:
> Last night I started a back-up (65GB of tarred-up, compressed goodness)
> to a USB drive. ...

USB drive thrashing as the filesystem fills up?

Most USB drives have 1MByte or even 4MByte erase blocks, whilst
filesystems write in 4kByte pages...

Sounds like write amplification slowdown...


To test your network, scp to dest.host:/dev/null to see if the speed
stays up or not.

Good luck,
Martin

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