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Forum Discussion
Raid1 vs X-RAID2 volume based on two disks only.
Hello,
This is my first post on this forum.
Some days ago I bought RN102 nas.
I can not understand how the data and parity are distributed when X-RAID2 volume includes two disks only.
Specification of X-RAID2 (http://kb.netgear.com/app/answers/detail/a_id/20980/related/1) says only that this model uses the first disk to store data, and the second disk to store parity information.
Based on the definition If 1st disk fails, all data are lost -as second disk contains only parity info...?
For two disks volumes it does not provide protection against 1st disk failure.
Could anybody explain why this mode is default on two bays enclosures (RN10200) and What is the protection advantage over typical RAID1 ?
Thanks
This is my first post on this forum.
Some days ago I bought RN102 nas.
I can not understand how the data and parity are distributed when X-RAID2 volume includes two disks only.
Specification of X-RAID2 (http://kb.netgear.com/app/answers/detail/a_id/20980/related/1) says only that this model uses the first disk to store data, and the second disk to store parity information.
Based on the definition If 1st disk fails, all data are lost -as second disk contains only parity info...?
For two disks volumes it does not provide protection against 1st disk failure.
Could anybody explain why this mode is default on two bays enclosures (RN10200) and What is the protection advantage over typical RAID1 ?
Thanks
1 Reply
- I'm not certain what the source of your information is but as far as I can tell the RN102 defaults to X-RAID out of the box, and will opt for a RAID1 configuration unless you choose Flex-RAID which will/should allow you to select from JBOD (one disk only), RAID0 or RAID1.
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