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Parity Swap Problem

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Hey all.
I'm currently working on upgrading my array with some larger drives, my first step of which has been to replace the parity drive with one large enough (4tb). I've followed the official instructions here for the parity swap procedure, and am currently stuck on step 14. Whenever I try to copy the parity, I get this error in the logs:

emhttpd: error: pswap_dsbl_copy, 6785: No such file or directory (2): open: /dev/sdb1

Is there a way to fix this? Currently running version 6.12.10, diag file is attached.

unlucky2-diagnostics-20240615-1544.zip

  • Community Expert

This means that parity was not correctly created, i.e., a parity sync was not initially done, but a parity check. If all disks are working you can just resync parity with the new disk, or did you have a failed drive?

  • Author
29 minutes ago, JorgeB said:

This means that parity was not correctly created, i.e., a parity sync was not initially done, but a parity check. If all disks are working you can just resync parity with the new disk, or did you have a failed drive?

All disks are working. Currently I'm running fully on 2tb drives, but I'm swapping out 3 of them for 4tb, hence the parity upgrade.

Is there a difference between parity sync and check? Not sure if I've noticed the different terms before.

  • Community Expert
5 minutes ago, Wolfieboi2 said:

Is there a difference between parity sync and check? Not sure if I've noticed the different terms before.

Yes.  A parity sync is primarily a write operation when you are building the contents os a parity drive from the data drives, while a parity check is primarily a read operation making sure that parity agrees with

  • Community Expert
1 hour ago, Wolfieboi2 said:

All disks are working. Currently I'm running fully on 2tb drives, but I'm swapping out 3 of them for 4tb, hence the parity upgrade.

Parity swap is not needed to upgrade parity. It is only needed if you need to replace a data disk and want to use a disk larger than current parity. The larger disk becomes parity and the data disk is replaced with the old parity.

 

Seems like you are trying to do it the hard way.

 

The normal way to upgrade parity is to just replace parity with a larger disk and rebuild parity.

 

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