sonofdbn Posted June 13, 2023 Share Posted June 13, 2023 I'm setting up a new server and precleared both the 16TB parity drive (as a stress test, I believe preclearing isn't necessary for a drive that's going to be added as parity) and an 8TB data drive, which I think had data on it before. So I thought both disks should essentially just be blank. After adding them to the array (they're the only two drives), a parity sync started, but at the same time a message popped up for the 8TB data drive: "Unmountable: Unsupported partition layout". So I cancelled the parity check and formatted the data disk. Now it's online but it says that 55.8GB is being used. This seems weird - seems odd that a parity check would start when the disk is purportedly unmountable, and how did I end up with 56GB of data being used? For now I've stopped the array. t2-diagnostics-20230613-1546.zip Quote Link to comment
Solution JorgeB Posted June 13, 2023 Solution Share Posted June 13, 2023 26 minutes ago, sonofdbn said: Now it's online but it says that 55.8GB is being used. This is normal for xfs, filesystem overhead. 27 minutes ago, sonofdbn said: This seems weird - seems odd that a parity check would start when the disk is purportedly unmountable Parity doesn't care about filesystems, and it still needs to sync. Quote Link to comment
sonofdbn Posted June 13, 2023 Author Share Posted June 13, 2023 46 minutes ago, JorgeB said: This is normal for xfs, filesystem overhead. I must have added at least seven 8TB drives in unRAID and never noticed this really quite large overheard before. 47 minutes ago, JorgeB said: Parity doesn't care about filesystems, and it still needs to sync. My surprise was more that the message says "unmountable", but the disk must have been mounted for parity to be running. Quote Link to comment
itimpi Posted June 13, 2023 Share Posted June 13, 2023 22 minutes ago, sonofdbn said: but the disk must have been mounted for parity to be running It is not a requirement that a disk be mounted for a parity check/sync to run - just that it is part of the array and not disabled. 1 Quote Link to comment
Recommended Posts
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.