Re: 2TB USB hard drive for backing up
Am Dienstag, 24. April 2012 schrieb Camaleón:
> > While I wait for the new 2 TB HDD, I am copying data across my home
> > LAN to my laptop which has a 120 GB HDD. I was using the WiFi
> > network provided by the computer consultants downstairs: it gave me
> > 1.2 MB/s transfer rate. When I succeeded in getting the Ethernet
> > working, I got 9 MB/s. I've now checked the ethernet NICs at both
> > ends and they are both Gigabit devices. So I've ordered a 5m Cat5e
> > ethernet cable from Amazon which should give me 120 MB/s transfer
> > rate. That would certainly make it convenient for security backups.
> Yes, and that's why my primary backup is directly attached to one of
> the SATA ports of the motherboard: speed between SATA buses is good
> enough when using a powerful system. The average size of my /home
> backup is now at ~10 GiB and I always do full (not incremental nor
> differential) backups becasue 10 GiB is still a manageable size
> (although for servers and workstations I do differential backups).
I use esata disks for my laptop backups. Together with
Cardbus-/Expresscard esata controllers, even for the ThinkPad T520 cause
its Intel only version didn´t sport an esata connector.
SATA flies. A bus where practically possible speeds come quite close to the
theoretic maximum. Unlike USB 2 and currently it seems also USB 3.
Initial rsync based backup of 300 GB Intel SSD 320 to new 2 TB Hitachi
harddisk has been 1 hour. For about 200 GiB of data, at least one million
inodes, including a virtual server on the internet and the Debian on the
USB-Stick in my ASUS WL-500g Premium DSL router.
Current times are usually less than 10 minutes for differential backups.
Martin 'Helios' Steigerwald - http://www.Lichtvoll.de
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