Just fire up two copies of whatever is doing the copying with each going
to a different destination. However, if you do that you may well create
a read access bottleneck to the source drive. That might be alleviated
somewhat with a largish cache assuming the two software copies are
relatively synchronized in the files they're accessing such that the
data is still in the cache. But it could be a bit troublesome if the
source drive is also your main drive and has other activity going on.
I think I'd just do a sequential operation by copying from X to Y and
then from Y to Z. It will probably take more elapsed time but you
wouldn't bottleneck X and as long as Y and Z aren't in the critical time
path for other apps you shouldn't care.
Try it both ways and see which wins and which causes the least
interference to other goings on.
Chuck Norcutt
Mike Lazzari wrote:
> I am trying to figure out the best and easiest way to back up my photos.
> I just picked up a 1tb HD and have it in an eSATA remote enclosure. When
> it's powered up it looks just like any other HD on the system. So far
> I've just been copying the files from one of the internal drives to it
> every once in a while. I also have another remote drive that I use for
> regular backups. (6 total drives) What I'd like to do is to
> automatically copy the photo files to two drives at the same time in a
> way that doesn't compromise the archived files. Maybe some type of RAID
> array? However I have no experience setting up a RAID array but
> understand that there are safe options. A RAID set up would require
> another HD purchase as the 250gb drives are nearly full. See Newegg sale
> below.
>
> So maybe there is a software solution? I'm using Acronis v9 but I don't
> see an option for making double copies.
>
> So what do you all do? Recommend? Using XP home edition. (Yes, I realize
> a Mac will do this while also making coffee and washing dishes)
>
> Mike
>
> <http://promotions.newegg.com/NEemail/Mar-0-2009/Laptop12/index-landing.html?nm_mc=EMC-IGNEFL031209&cm_mmc=EMC-IGNEFL031209-_-email-_-E0-_-HDD&cm_lm=watershed@xxxxxxxxxxxxxxx&spt=0#HDDbanner>
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