Tom said:
On Jul 29 2006, Rod Speed wrote:
[Drives on different controllers]
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
odds are it won't make much difference
i've been seeing backup data transfer rates
(*clone*, not image (which i've never done))
of 2.0GB/min to 2.2GB/min for the last year
with a mix of 6 250GB 720IDE hard drives:
2 Hitachi (the slightly old ones)
1 Hitachi (the current HDT722525DLAT80)
2 WD RE
1 Seagate 7200.9
two machines, not the fastest, both Opteron 940,
one with an Opteron 142 (slow), the 2nd with
a single Opteron 248 (true dualie mobo, and
i expect to go to 2 CPUs (or a single dual core)
in another 4-to-7 months
two of the above are my primary master,
the other 4 are the clone backups
this past couple of weeks i got 2 Raptor 150's
(SATA) and am now using them as the boot hard
drives on both machines. i expect to see
a small overall improvement on my prior
2.0GB/min-2.2GB/min (based on the clone
backups that i've done so far (maybe 4/5
at this point))
i've gotten essentially the same data
transfer rates with either DOS Ghost 2003,
or the current Acronis True Image 9
fwiw, yesterday on my faster machine (with
the Raptor boot disk and a 3 disk Raid 1E array
(striped, similar to a 4 disk Raid 10), using
a $300+ Areca ARC-1210 as the controller), in Win
XP Pro (updated) i copied 1.71GB of Agent newsreader
files from the Raptor to the array (for minor backup)
and got 1.22GB/min. for kicks, i turned around
and copied it the other way (where i'm reading
from the striped array) and got 2.50GB/min!
anyhow, back to your question above (which
i underlined above):
1. i was doing my IDE backups on a single
80 wire cable that has 3 connectors.
i deliberately left the middle connector
unused and only used it when i plugged
in a 250GB IDE backup disk
2. i'm now using a SATA Raptor as my boot,
and have a 10" two connector round IDE
cable on one of my 2 mobo IDE connectors
(one is on the primary on one, and is on
the secondary on the other)
3. from what i've done so far, it's a little
bit faster on both machines, but not enough
to get excited about. the limiting factor
is the write speeds of the 6 250GB IDE drives
(which varies a fair amount, so i may still
have a revised opinion in another 3 weeks)
That does makes sense. I plan to do the Clone overnight, so it should be
completed, either way of connecting the drive, by the time I wake up.
Looks like mechanically convenient is the best plan.
you might keep in mind that rod appears
(to me) to have *no* recent clone experience
he's talking out of his hat
which is why he very often gets criticized
here as being a troll
maybe a useful troll, but a troll nonetheless
odds are he has a single SATA drive on the
machine(s) that he does his image backups to.
i mean, i'd NEVER want to setup doing clone
backups to a SATA drive (that you attach for
the backup and then detach), given their very
flimsy connectors
if you do any non-trivial changes (e.g. add
a SATA HD IDE controller), all bets are off
and you may have to load Windows from scratch
it's *easy* to test an IDE clone backup
(in my recent experience using Acronis
True Image 9):
pull the power and IDE connector from
your IDE boot drive; connect them to the
IDE drive you just backed up to
boot the machine
it either works (home free),
or it doesn't (homework assignment)
amen to that
rod does say some useful things.
in my recent experience with Acronis
True Image 9 for clone backups, it is
*very* easy to wipe out your source drive
be very very careful and proceed very
slowly the 1st time thru
The drive has arrived, I just need to get the software. Hopefully I can
start sometime this week. I'll report back in this thread my results to
close the issue.
i'm interested and i'll look for it.
I'm considering getting a mobile rack for the extra hard drives I have
around here. Perhaps the Vantec EZ Swap 2 (IDE):
http://www.vantecusa.com/p_mrk300fdbk.html
You wouldn't by chance happen to have a suggestion in that department,
would you?
forget it, waste of money
get a 12" length rod of 1.5" square wood,
and a few small paperbacks (of various thickness)
take your backup IDE drive and prop it up, one
edge on the bottom edge of the open case, and the
other on the wood rod
if you have more than 10GB to backup, get a fan
and blow air on the propped up hard drive
most i've backed up this way (clone) is 60GB
(taking a bit less than 30 min). the drive
was fairly cool when the backup finished.
take a piece of 3M blue masking tape, stick it
to the bottom (or top) the the cloned backup
drive and write the data and machine name
bill