Quantcast
Channel: Hardware Analysis - Is RAID 6 better than RAID 10 ?
Viewing all articles
Browse latest Browse all 15

Re: Is RAID 6 better than RAID 10 ?

$
0
0
G.G.
Thanks for your excellent overview you provided regarding Hot Swap and Hot Spare drives. I know for a fact my Areca card has the Hot Spare, Not sure about the other.

Moreover, I have to admit the math does not add up for RAID 6. You say that for my 24TB example close to 22TB is available for storing data which means that 2TB is dedicated for actually backing up the data. In contrast, RAID 10 is using 12TB for data and 12TB dedicated for data backup. This math makes sense.

The only way I can rationalize how RAID 6 is able to backup 22 TB of data into 2TB of backup space has to be by using a special form of compression technology. If this is the case, I have to say that the compression algorithm RAID 6 is using to backup 22TB of data into 2TB of backup space is something I find amazing. How is so much data fitting to such a small amount of space?

RAID 6 ioffers a lot more space for storing data compared to RAID 10. It simply sounds too good tbe true. Is RAID 6 performing a partial backup of data that somehow alternates? How does it rebuild the data for any failed hard drive if the size of the backup is so small to begin with. If anyone can explain how RAID 6 performs this magic trick please let me know. Thanks.





Viewing all articles
Browse latest Browse all 15

Trending Articles