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Forum Discussion
RNDU4000 disaster recovery?
Hi, I'm planning to buy Ultra4 for home use. I will definitely use XRaid. Of course - backup must be done frequently, but let's assume some sort of failure of ReadyNas itself after a warranty. Let'...
It is a customized version of Raid as it is expandable both horizontally (adding disks) and vertically by increasing the size of the disks (one at a time). The expansion vertically will not take place until there are enough of the larger size for redundancy. In the case of a 4 bay unit that's two. For example my NVX units started out with 4x1TB drives (2.7TB net volume after redundancy and overhead). As I was filling up the volume, I replaced two to the 1TB drives with 3TB drives in both units and the net volume is now 4.5TB. (Note: Sparc based volumes will not expand until all drives are larger).
The correct name for the technology in the Ultra 4 is X-Raid2. Here is a description of the expansion of X-Raid2. The original Sparc based units had X-Raid and X-Raid2 is far more flexible.
The correct name for the technology in the Ultra 4 is X-Raid2. Here is a description of the expansion of X-Raid2. The original Sparc based units had X-Raid and X-Raid2 is far more flexible.
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