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Forum Discussion
ReadyNAS Ultra 6 won't boot
Hi I have an Ultra 6 that I wanted to reformat. I had an error that 2 drives needed to be replaced, which I did, but saw a message that Volume C was not good. I had already moved all my data to ano...
There are several posts here where users have seen "corrupted root" messages when inserting a previously formatted disk with the NAS powered down. I've seen that once myself. So I recommend either simply deleting the partitions, or (equivalent) doing a quick or full erase with a low level diagnostic.
Generally the quick erase approach zeros some sectors at the beginning and the end, so the drive looks unformatted. The full erase diagnostic is an excellent disk test (and will pick up problems that the non-destructive tests miss), so if you want to verify the disk health anyway, it is a good approach.
There is no reason to do a secure erase before inserting drives in the NAS. The NAS re-formats anyway, and RAID setup will re-write every sector in the data volume partition. Doing a secure erase when you take them out of service is of course a good practice.
For others reading the thread - New SATA drives all have a built-in secure erase function. This is more effective than the software secure erase built into the NAS for a variety of reasons - one is that the drive firmware knows a lot more about where user data can be written than the NAS does (true with all drives, but especially the case with SSD). A second is that it is usually faster. Often accessing the internal secure erase function requires SATA or eSATA connections to the PC (USB adapters usually don't work for this). The built in ATA command is recommended by the most recent NIST recommendation for media sanitization (http://nvlpubs.nist.gov/nistpubs/Specia ... 0-88r1.pdf)
Generally the quick erase approach zeros some sectors at the beginning and the end, so the drive looks unformatted. The full erase diagnostic is an excellent disk test (and will pick up problems that the non-destructive tests miss), so if you want to verify the disk health anyway, it is a good approach.
There is no reason to do a secure erase before inserting drives in the NAS. The NAS re-formats anyway, and RAID setup will re-write every sector in the data volume partition. Doing a secure erase when you take them out of service is of course a good practice.
For others reading the thread - New SATA drives all have a built-in secure erase function. This is more effective than the software secure erase built into the NAS for a variety of reasons - one is that the drive firmware knows a lot more about where user data can be written than the NAS does (true with all drives, but especially the case with SSD). A second is that it is usually faster. Often accessing the internal secure erase function requires SATA or eSATA connections to the PC (USB adapters usually don't work for this). The built in ATA command is recommended by the most recent NIST recommendation for media sanitization (http://nvlpubs.nist.gov/nistpubs/Specia ... 0-88r1.pdf)
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