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.

Unraid server disk speed problems, causing plex and other things to not work proberbly

Featured Replies

Hello!

sorry if my english is bad, i will try my best

a couple of weeks ago the power to my house got cut off, i forgot to stop array and shutting down my server normally, after i booted up the server again there seems to be problems with the disks in my arraym i have tried running a parity check but i goes up to beyond 7k days to finish, if i want to simply move a file from one disk to another, the speed goes from around 50 mb/s to straight up 0 mb/s and stops, same thing happent with unbalanced bc im trying to empty my old 2 tb disk so i cam remove it from my array, i have a 12 tb parity disk and a 12 tb disk in my array with the 2 tb, and i want to get the small one out of there, and also plex has become almost unusable from time to time, any suggestions?

i have tried running diskspeed and it dont give any errors as what i can see, but im fairly green on unraid so keep that in mind :-)

I have tried disconnecting and reconnecting all the power and sata cables to be sure but the server has been running fine up to a year before this

i also have en error on my disk2 in my array, that is the 12 tb disk.. i dont hope its dead :-(

image.png

image.png

from diskspeed:

Skærmbillede 2026-01-02 131532.png

Skærmbillede 2026-01-02 131549.png

Skærmbillede 2026-01-02 131608.png

and also it shows my cpu to be doing a lot without doing anything, see picture, but im not sure if that is also bc of one of the drives?

image.png

i have attached the diagnostics from my unraid server

unraid-diagnostics-20260102-1302.zip

Edited by bergoz

Disk2 appears to be failing, many reallocated sectors with a FAILING NOW SMART attribute. Recommend replacing that disk.

  • Author
4 minutes ago, JorgeB said:

Disk2 appears to be failing, many reallocated sectors with a FAILING NOW SMART attribute. Recommend replacing that disk.

ok many thanks, is there anything i can try to maybe get lucky and get it to run right? or is it a dead end?

  • Author

50 minutes ago, JorgeB said:

Disk2 appears to be failing, many reallocated sectors with a FAILING NOW SMART attribute. Recommend replacing that disk.

i still have warranty on the disk so im returning it to amazon and getting my money back, then i will buy a new one, i should have setup my array with a 12 tb parity disk, so i should not lose any data right?

Edited by bergoz

AS long as parity is valid and all other disks are OK, you should not lose data.

  • Author
3 minutes ago, JorgeB said:

AS long as parity is valid and all other disks are OK, you should not lose data.

Thanks again! according to what i can see, it should be valid then

  • Author
7 minutes ago, JorgeB said:

AS long as parity is valid and all other disks are OK, you should not lose data.

can i assume that this is what makes mainly Plex and moving files impossible? i guess it would make sense, i can watch some of the movies and tv shows from that disk tough, im not sure i understand fully whats going on with disk, should everything on that disk not be completely unusable?

If the files are on the affected disk, they can fail to move with an i/o error.

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.