On 27/11/11 16:25, Steve Holdoway wrote:
Sorry Derek, I disagree.
100G over (for example) 2 years is 4GB/month. Easily manageable even at
ADSL uplink speeds. Sure, it's going to take time to get your current
collection up there, but once there, rsync will provide all you need for
a minimal overhead, given that Xtra are touting 100GB/mo plans at the
moment.
Yes - you are totally correct - if you have an ADSL account with a high
cap,
and the ability to purchase more capacity for a pariticular month.
If you have a 10G/month plan, with no ability to buy more, it gets
painful to get
it all up to the server. Further, all other usage now has to be
curtailed. Not having
done it myself, can you change a monthly plan (temporarily) so as to get
the data up there?
But for the people with dialup, don't even mention S3.
Derek.
S3 costs pence. 100GB over a LAN is trivial - just leave it running
overnight.
My problems with external drives...
1. the small ones keep going through the washing machine.
2. the disk-based ones have a hard life. Although hdds can handle 10's
( 100's? ) of g when not in use, they are often unstable ( tall and
thin ) and can fall off desks when in use, and tend to be left in cars
on hot days / rucsacs on the backs of cyclists in the rain, etc.
3. You have to remember to plug / unplug / pick them up / offload the
responsibility when you're off sick / etc...
I see them as a high risk alternative not to be trusted that much. For
me, a far lower risk alternative is to have a networked solution running
from cron. As I'm sure I said before, I have a backup server hidden away
onsite, and a remote server in Canada, which is what I use for a
multilevel backup solution.
I've just checked on prices: a 1TB USB external drive is about $175
( you're future proofing, right? ). Overuse charges for an extra 100GB
isn't going to be anything like that much.
My $0.02,
Steve
On Sun, 2011-11-27 at 15:11 +1300, Derek Smithies wrote:
Hi,
The usual media one has to backup is photos - which can easily be 100G
(after some years of collection).
So a backup solution has to be designed for 100 G.
Dvds are too small, and slow to search.
network based backups are too slow - DSL uplink is too slow - and the
volume of data to
backup is too high, in comparison to the monthly cap.
Which leaves:
External usb drive
Run time machine (apple software) and write contents of
hard drive to usb drive. machine blows up. install replacement
machine.
run "time machine" and everything - I mean everything- is restored as
before on the old hard drive.
simple effective etc, and works for all users.
Not sure on the linux alternatives that are available - I would be
interested in hearing of users experience.
There is deja dup, which according to
http://maketecheasier.com/deja-dup-makes-backup-a-simple-task-linux/2011/03/17
"Deja Dup Backup is yet another backup tool, except that it turns the
whole complicated backup process into kid stuff."
(((This brings me to pet peeve #2. Users are told to do backups, but
the sentence should be:
1)do backup
2)verify that you can take the backup media and restore to a new
machine
There are a legion of stories out there of people/firms who have
regularly and reliably backed up to some media every week.
on disaster hitting, the backup media was found to be "defective".
There are two times that you can test your backup.
a) after disaster happens, b)before the disaster happens.
)))
Derek.
On 26/11/11 17:22, Eliot Blennerhassett wrote:
Now that others have mentioned 'upselling'
I haven't heard one salesperson mention the sad fact: "you're going to
put a few years worth of photos etc on this drive, and then it *is*
going to fail, so you need some form of backup"
External hard drive? DVD writer? Amazon S3 subscription?
...
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--
=============
Derek Smithies,
Christchurch,
New Zealand
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--
Derek J Smithies Ph.D.
Christchurch,
New Zealand
-- "How did you make it work??" "the usual, got everything right"
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