Does Raid 1 continuously backup?

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Jonathan Sifleet

Jonathan Sifleet

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Apr 25, 2013
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Sorry if this is incredibly stupid, but I'm going to be getting an SSD rather soonish and use my HDD as a mass storage. Will Raid 1 continuously backup my SSD to my HDD? And what would the benefit of getting a raid card be?
 
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USAFRet

USAFRet

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I think you're a bit off on what RAID actually is.
RAID levels

RAID1 is a mirror. The same data is written to the drives at the same time. It is good for redundancy if you really, really need to have continuous operations in case of a dead drive. Like if you were running a website, and downtime meant lost revenue.

It is not a backup.

And trying to combine the SSD and HDD in a RAID array is a bad idea on several levels.
 
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makkem

makkem

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Hi
raid 1 creates an exact copy of disc 1 on disc 2 every time something is written to disc one so yes.
However this requires two disc drives of the same capacity so you cannot have raid 1 on a small SSD and a large HDD or you will limit the size of the Hdd to that of the SSD.Also it could slow down the operation of the SSD.
 
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Jonathan Sifleet

Jonathan Sifleet

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I read someone there I don't need identical drives, must've missed the identical space thing. Is there anything I can use that will continuously backup the SSD to another drive, whenever there's a change in data, rather than windows backup that backups the selected files at a certain time?
 
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USAFRet

USAFRet

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FreeFileSync also has a real time sync function.
Tell it which folders to monitor, and it does it.
 
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alexandergc

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Before anyone forgets, Windows 8 has a built-in File History utility in the Control Panel that can back up files at set intervals.
Granted, it's not the best out there, but it comes with the OS so why not?
 
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Smart_Carol

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They definitely do NOT have to be "the same capacity" as a "requirement". The size will just always be the size of the smallest of the 2 drives.


 
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makkem

makkem

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Hi
If you scroll up and read the full post before you edited it ,I did not say it was a requirement merely stated that it would limit the size of the raid setup to that of the smallest drive.
 
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