Skip to content
View in the app

A better way to browse. Learn more.

Unraid

A full-screen app on your home screen with push notifications, badges and more.

To install this app on iOS and iPadOS
  1. Tap the Share icon in Safari
  2. Scroll the menu and tap Add to Home Screen.
  3. Tap Add in the top-right corner.
To install this app on Android
  1. Tap the 3-dot menu (⋮) in the top-right corner of the browser.
  2. Tap Add to Home screen or Install app.
  3. Confirm by tapping Install.

Disk Parity errors on rebuild

Featured Replies

Hi everyone,

So I decided to add a parity drive to my system (previous just had 2 drives in an array), however I did so when that drive (now parity) had 1 offline uncorrectable and the other drive was fine.

Upon finishing the parity build, it found 336 errors and now the other drive is reading as 2 current pending sectors.

It is reading as parity is valid, however if it couldn't read the data from disk 1, I don't think I trust the parity data.

I know I need to replace these drives ASAP, but which should be replaced first? Or should I just load everything onto 2 fresh drives from a backup (really don't want to do this).

Should I bother with a correcting parity check if it looks like the drives are failing?

 

Diagnostics attached

 

Thanks a lot :)

Screenshot 2024-08-09 at 6.46.55 PM.png

g4nas-diagnostics-20240809-1841.zip

Edited by mcor77

Solved by JorgeB

  • Community Expert
  • Solution

There's no good option, rebuilding disk1 may result in some corrupt data, and you if resysnc parity there will still  be read errors from disk1.

 

One option would be to copy everything you can to a new disk, that way you will at least know which files cannot be copied, if any, due to the read errors

  • Author

This is what I was afraid of. :(  Thanks a lot for your help. :) 

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

Account

Navigation

Search

Search

Configure browser push notifications

Chrome (Android)
  1. Tap the lock icon next to the address bar.
  2. Tap Permissions → Notifications.
  3. Adjust your preference.
Chrome (Desktop)
  1. Click the padlock icon in the address bar.
  2. Select Site settings.
  3. Find Notifications and adjust your preference.