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Forum Discussion
dandan123
Jan 01, 2013Aspirant
Back to a previous OS configuration
I have a ReadyNAS Ultra 2 (2HDDs RAID Level X-RAID2) and I would like to install/test some new debian packages. My both HDDs are in RAID Level X-RAID2 and are identical (both green). I would like to...
StephenB
Jan 02, 2013Guru - Experienced User
Every time the NAS detects a disk insertion, the NAS will treat that disk as if it were new - and re-build it from the one already installed. Though in this scenario it is far better to inert the disks with the unit running, and not powered down - you want to ensure that the NAS is reliably detecting that the disks are out of sync, and that is much better if the NAS sees the disk removals/insertions.
Doing this procedure regularly is a bad idea. Rebuilding the array is not a 100% reliable process, you should avoid doing it unnecessarily. Also, the trays/SATA connections to the NAS are not intended for frequent insertions/removals.
It is far better to do your testing with a scratch disk, and then install again onto your production disks. IF the NAS is powered down when you remove them/reinsert them, then it will not attempt to rebuild the RAID array.
Doing this procedure regularly is a bad idea. Rebuilding the array is not a 100% reliable process, you should avoid doing it unnecessarily. Also, the trays/SATA connections to the NAS are not intended for frequent insertions/removals.
It is far better to do your testing with a scratch disk, and then install again onto your production disks. IF the NAS is powered down when you remove them/reinsert them, then it will not attempt to rebuild the RAID array.
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