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Your opinion on a 2.5" drive for Ghost backup?

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February 9, 2013 7:58:42 PM

Hi.

Could tell your opinion about using a 2.5" WD Black drive in a USB enclosure for daily Ghost backup for a point-of-sale system? We already use RAID1 for the internal drives, but we need external backup in case a file becomes corrupted, as happened recently. (Why was the file lost? It could be that some cashier just resets the computer when there's any hint of a problem, but that's an issue for another post.)

CrystalDiskInfo is showing that our 3-yr old Seagate Freeagent shows signs of imminent danger to the data, so we would like to put a WD Black drive in a Rosewill metal USB enclosure for daily Ghost backup. (It would be kept in a well-ventilated location.)

The advantage of the 2.5" enclosure is that you do not have to worry about an enclosure's power supply failing. (It has happened several times with old Maxtor OneTouch drives.)

Given that the incremental daily backup is only about 250MB compressed, the transfer speed is not of great importance, and a relatively small drive can hold many daily incremental backup files.

What is your opinion about reliability when using a 2.5" vs a 3.5" WD Black drive in a USB enclosure for daily backup? Some people say the 2.5" drive parks the heads more often. Is this of great concern from a reliability perspective? Thank you for your advice!
a c 876 G Storage
February 9, 2013 10:31:27 PM

a WD Black drive is a waste as they cost more and are 7200rmps (which usb2 cannot transfer data fast enough to keep up with the drive) and they (7200rpm drives) generate more heat which is a bad thing. I'd suggest two Spinpoint drives in two enclosers and make two backups a night in case one of the drives dies.
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

Me - I wonder why you just dont use usb flash drives.
http://www.newegg.com/Product/Product.aspx?Item=N82E168...
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February 10, 2013 7:54:20 PM

popatim said:
a WD Black drive is a waste as they cost more and are 7200rmps (which usb2 cannot transfer data fast enough to keep up with the drive) and they (7200rpm drives) generate more heat which is a bad thing. I'd suggest two Spinpoint drives in two enclosers and make two backups a night in case one of the drives dies.
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

Me - I wonder why you just dont use usb flash drives.
http://www.newegg.com/Product/Product.aspx?Item=N82E168...


You have some great ideas. I was not aware of high heat generation with WD Black series drives. Your idea of 2 flash drives seems just perfect given the availability of high-capacity reliable drives. Thank you!
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