Mirror Or Clone?
I have a Win 7 system with twin Hitachi 1TB HDs and a 2TB Seagate HD which I use for backups.
I had planned to mirror the Hitachi drives but now I'm not so sure...
The mirror would be created in software by Windoze and as I understand it the overhead creates delay.
I am considering a weekly clone from the 1st Hitachi to the second instead.
That way the second drive is only written to once/week and is never read - which should leave it in great shape to take over when the first one fails.
That, plus the lack of delay is why I am leaning away from the mirror.
Either way the Seagate gets a full files/folders weekly backup of the 1st Hitachi with daily incremental updates.
Does anybody have an opinion on this or a better idea?


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Ah... ok.
From my old tape backup days when I was an ISP I had figgered that the difference was that an incremental used the state as of the last BU as a base and each differential went all the way back to the last full BU.
So that recovery steps on day 4 would be:
Full + inc1 + inc2 + inc3 under the weekly full/daily incremental method and
Full + diff3 under the differential scheme.
The trade off being ease of recovery vs disk space.
Is that in agreement with what you are saying?
I guess I need to spec my hardware in my sig too...
Both have Antec cases, Antec Earthwatts 380 PSU, onboard or minimal graphics, Win 7 Pro
PC 1 ASUS H87-Pro mobo, 8GB Corsair 1600 DDR3 RAM, Core i5-4670 3.4GHz CPU, 2 WD 750GB SATA3 HDD, 1 WD 3TB HDD
PC 2 ASUS P5K SE-EPU mobo, 4GB Corsair 1600 DDR3 RAM, Core Duo i3 3GHz CPU, 2 Hitachi 1TB HDD, 1 Seagate 2TB HDD
PC3 HP G6 lappie
PC4 I dunno, I'm thinkin' Raspberry Pi?
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Yes sir, you got it. As I said though, just my opinion. For me incremental is great for folder/file, differential best suited for full disk/partition.
Your specs look good, thanks for posting them, would be nice if everyone would as in most cases they really help in troubleshooting.
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