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Forum Discussion
6.2.0 upgrade problems on RN104
Since upgrading my RN104 to 6.2.0 I've had similar problems to those listed by other users: - Unable to shutdown or reboot. Display shows appropriate message and power button LED flashes, but noth...
Still no joy so I decided I might as well do a factory reset as everything's double backed up. I've now got drive 4 set up as a single volume and am filling it up just to make sure it's OK, which will take 22 hours with no verification enabled. If I don't hit an invisible wall at 2.12TB again I should be good to go for combining all 4 drives into a single volume tomorrow evening.
I've been reading the manual again and giving some thought to which RAID mode to use, and it occurs to me that X-RAID2 might be a better choice as it would allow me to gradually upgrade to 6TB drives over the next 4 months rather than buying 4 all at once and having to restore all the data yet again. However, with the existing 4 x 3TB drives it will mean 3TB of disk space will be reserved for data protection, which I would have to cope with by temporarily keeping the double backup, and I would only end up increasing my total storage space by 4TB (EDIT: 6TB!), so I'm not sure if this is going to be worth it.
By the way, despite reading the Netgear description of X-RAID2 and the Wikipedia entry on RAID-5, I found myself baffled by how, when a drive is replaced, the lost data can be rebuilt from the parity spread across the other three drives. I wondered if I could find an easily understandable explanation of how it actually works in practice or if should I just accept it as magic and get on with life. Well I found an explanation, and it turns out it is magic! http://riceball.com/d/content/raid-5-parity-what-it-and-how-does-it-work
I've been reading the manual again and giving some thought to which RAID mode to use, and it occurs to me that X-RAID2 might be a better choice as it would allow me to gradually upgrade to 6TB drives over the next 4 months rather than buying 4 all at once and having to restore all the data yet again. However, with the existing 4 x 3TB drives it will mean 3TB of disk space will be reserved for data protection, which I would have to cope with by temporarily keeping the double backup, and I would only end up increasing my total storage space by 4TB (EDIT: 6TB!), so I'm not sure if this is going to be worth it.
By the way, despite reading the Netgear description of X-RAID2 and the Wikipedia entry on RAID-5, I found myself baffled by how, when a drive is replaced, the lost data can be rebuilt from the parity spread across the other three drives. I wondered if I could find an easily understandable explanation of how it actually works in practice or if should I just accept it as magic and get on with life. Well I found an explanation, and it turns out it is magic! http://riceball.com/d/content/raid-5-parity-what-it-and-how-does-it-work
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