October 28, 20241 yr Does a drive that is used as a second parity drive need to precleared before using it as a data drive in an array?
October 28, 20241 yr Community Expert No, preclearing is always optional, but it will need to be cleared by Unraid before it can be used.
October 28, 20241 yr Author 22 minutes ago, JorgeB said: No, preclearing is always optional, but it will need to be cleared by Unraid before it can be used. Meaning formatted? I understand it needs to be formatted. I just didn't know if it needed to be completely cleared.
October 28, 20241 yr Community Expert Solution 11 minutes ago, dchamb said: Meaning formatted? I understand it needs to be formatted. I just didn't know if it needed to be completely cleared. No - Cleared (every sector set to all zeroes). A disk has to be all zeroes before it can be added as an array drive without affecting parity. Formatting happens after the add has succeeded. Unraid does the Clear automatically when it is needed.
October 28, 20241 yr Author 2 minutes ago, itimpi said: No - Cleared (every sector set to all zeroes). A disk has to be all zeroes before it can be added as an array drive without affecting parity. Formatting happens after the add has succeeded. Unraid does the Clear automatically when it is needed. I learn something new all the time. I didn't know Unraid did this automatically. So the same is true for a data drive being reused as a new drive I assume.
October 29, 20241 yr Community Expert 12 hours ago, dchamb said: So the same is true for a data drive being reused as a new drive I assume. Yep.
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