June 3, 20215 yr Community Expert Hello, i got some "dma crc error count" and then my Parity Drive was disabled. The only thing i did, is disconnecting an 2TB Unassigned Disc and changed it against a 4TB one on the same port. Then started the backups script from this thread: Diagnostic is attached. Is there a way to bring my Parity Drive back online, without using "new config"? I hope, you can help me. Thank you. unraid-1-diagnostics-20210603-2003.zip
June 3, 20215 yr Author Community Expert last parity check is from tuesday and i remeber that i change to "reconstruction write" last week.
June 3, 20215 yr 17 minutes ago, sonic6 said: i got some "dma crc error count" and then my Parity Drive was disabled. CRC errors are usually caused by defective cabling and/or controllers. How is the parity drive connected? Possible to swap the cable?
June 3, 20215 yr Author Community Expert 10 minutes ago, mgutt said: How is the parity drive connected? Possible to swap the cable? Parity Drive is connected to an HBA: IBM ServeRaid M1015 SATA / SAS HBA Controller (IT Mode) with a Mini SAS 36 Pin-Stecker (SFF-8087) to 4 x SATA i can swap from P00 to P01 on the HBA when i installed this, i was very carefully and this worked since february what is the best way, to bring my parity back online? Edited June 3, 20215 yr by sonic6
June 3, 20215 yr 25 minutes ago, sonic6 said: what is the best way, to bring my parity back online? From my understanding, Unraid only disables a drive when it cannot write to it. So, if it was disabled, the content of your Parity drive is probably out of sync with the Array. You could do a new config and say that Parity is valid, but it is probably not. Let's see what our more experienced users think of that.
June 3, 20215 yr Author Community Expert 4 minutes ago, ChatNoir said: You could do a new config and say that Parity is valid, but it is probably not. Let's see what our more experienced users think of that. i hope there is another way... i don't want to lose all my drive configurations...
June 3, 20215 yr Start the array without the parity drive assigned, stop the array, assign the parity drive and let it build.
June 3, 20215 yr 31 minutes ago, sonic6 said: i hope there is another way... i don't want to lose all my drive configurations... I was not afraid of data drives content, only of Parity rebuilt. jonathanm's answer match what I was expecting.
June 3, 20215 yr Author Community Expert i wasn't afraid of my data, only about my drive configuartions like temperatures, etc... thank you guys for the help. i ordered two new cables and will report in a week or two
June 3, 20215 yr 1 hour ago, sonic6 said: with a Mini SAS 36 Pin-Stecker (SFF-8087) to 4 x SATA Did it "snap in"? I had a similar cable from CableCreation with a loose contact. Maybe you better try a cable from Supermicro (if they have this cable type).
June 3, 20215 yr Author Community Expert Yes. I habe a DS380 Case with hot-swap cages. I didn't touched that drive for month.
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