[ale] Duplicity very slow

[Edward Holcroft]

I am trying out Duplicity for backup to local USB. I used rsync before, but
now we need to encrypt our backups.

The problem I am finding is that it's terribly slow. In the last 16 hours
it's only backed up about 500GB. When I was using rsync, an initial full
backup would take a bout 10 hours.

Source is a RAID 5 partition with ext4 on CentOS 7 and destination is a
SATA drive in a docking station connected with USB3, formatted as NTFS. It
does not have to be NTFS, that's just a hangover from when this was a
windows server.

I can actually see visually from the I/O activity LED on the USB drive that
things are very slow, it blinks for a few seconds and then stops for
several seconds. When I was using rsync, that LED would flicker all the
time that the sync was taking place.

I thought maybe clamav was the casue of teh issue since it was hogging the
CPU, but stopping that has made no difference.

Is this normal for Duplicity?

cheers
ed

-- 
Edward Holcroft | Madsen Kneppers & Associates Inc.
11695 Johns Creek Parkway, Suite 250 | Johns Creek, GA 30097
O (770) 446-9606 | M (770) 630-0949

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