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Rebuild at disk swap
Hi, I will swap one of the tree HDDs because of SMART error warnings. I think after removing the problematic HDD the NAS will immedeatily start a job (I guess will will redistribute to be redund...
fiber2 wrote:
Is it better to power down the NAS or to do a hot swap anyway? I can easily power down the NAS to do the swap.
I always recommend a hot swap, though a cold swap also works.
fiber2 wrote:
To prevent access, while completing the rebuild, can I take out the ethernet connection. That would be much easier than making sure nobody is trying to read or write from/to the NAS with any of the multiple devices.
You can, but I don't see a reason to. The NAS can be used during the resync (though performance will be less). That's the main benefit of RAID - keeping data available.
fiber2 wrote:Hi,
I will swap one of the tree HDDs because of SMART error warnings.
I think after removing the problematic HDD the NAS will immedeatily start a job (I guess will will redistribute to be redundent fo the new situations with only 2 disks).
No, it will not. It will remain non-redundant until you insert a replacement drive and it completes resync. The resync process is drive intensive, so you should make sure your backup is up to date in the event that the process pushes a second drive to the breaking point. It's not likely, but it is possible (especially if another drive is the same age) and has happened to others. If you lose a second drive before resync completes, you lose everything.
Thanks Sandshark,
Indeed that completes the answer.
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