Can somebody explain when my data is safe from a HD failure and how the system handles an event where a new HD is inserted. Here are some cases:
1) 500GB HD = 500GB available, no redundant data
2) 500GB HD, insert 500GB HD = 500GB available, redundant data (mirror)
3) 500GB HD + 500GB HD, insert 500GB HD = 1TB available, redundant data (RAID 5)
4) 500GB HD + 500GB HD, insert 1GB = 1TB available, redundant data (2 HDs mirrored on 1)
5) 500GB HD + 500GB HD, insert 250GB HD = 500GB redundant (mirror) + 250 non-redundant
Are the above scenarios correct?
Thanks
WHS doesn't use RAID at all (as a matter of fact, RAID on WHS is unsupported). It uses Folder Duplication. It's similar to RAID 1, but it's done on a per-share-basis, not per-drive. As for when you add a drive, it just adds the drive to the storage pool.
You should check the
Technical Briefs for more info as to how WHS works.
