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Forum Discussion
NessD
Apr 12, 2013Follower
Why UPS for Spin-Down?
Hi! Just a quick question I couldn't find the answer for. Why is it recommended to use an UPS, when you turn on HDD spin-down? How can data get lost? I'm doing an incremental backup once or twice a d...
ihartley
Apr 16, 2013Tutor
StephenB : respect! I don't disagree with having a UPS as a recommendation (even though I don't). But I get the distinct feeling that Netgear/ReadyNAS problems are all too easily blamed in drives. Drive that - if you forgive me - have a common, standardised interface and work in millions of other systems.
I do have a number of issues with the posts you reference:
- "RAID is not sufficient to protect your data from loss" - no but it is sufficient - and designed - to protect your data from single (or multiple depending on config) HDD failure
- "surge protection" - I would suggest that the PSU would handle this quite well, and most ethernet/cable feeds are already protected.
- "disks failing at the same time" - statistically, this is as likely to happen as winning the lottery. But people do win it!!
I think you hit the nail on the head though. People plug/unplug drives, and in doing so accidentally wipe data. I would recommend that the first thing to do when you suspect whole data loss is remove drives and not re-plug them. It seems Netgear have decided to treat any new drive inserted as a new drive. Why - I have no idea.....
I do have a number of issues with the posts you reference:
- "RAID is not sufficient to protect your data from loss" - no but it is sufficient - and designed - to protect your data from single (or multiple depending on config) HDD failure
- "surge protection" - I would suggest that the PSU would handle this quite well, and most ethernet/cable feeds are already protected.
- "disks failing at the same time" - statistically, this is as likely to happen as winning the lottery. But people do win it!!
I think you hit the nail on the head though. People plug/unplug drives, and in doing so accidentally wipe data. I would recommend that the first thing to do when you suspect whole data loss is remove drives and not re-plug them. It seems Netgear have decided to treat any new drive inserted as a new drive. Why - I have no idea.....
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