On 21/09/10 15:19, Faris Raouf wrote: > If no problem is found we'll then we'll move on to the disk pulling > procedure :-) Shame the R200 doesn't have hot swap drives! >
I've seen random data corruption on SATA drives attached to SAS5, and SAS6 controllers in R300, and PE860 boxes - we spotted it because we prefer to use software RAID on top of the SAS5/6s, rather than use their own RAID functionality. The R200s we run use the onboard Intel SATA controller and have no problems. We're trying to phase out SAS5/SAS6 as a result of this corruption (that and the ATA passthrough bug which LSI still haven't fixed). I believe that recent mdadm will understand the metadata format that SAS5/SAS6 controllers use, and you should be able to then use the linux software RAID to get a count of inconsistencies between the two halves of the mirror. If mdadm doesn't grok the metadata, then dmraid definitely does (but I don't know if/how device mapper's RAID code does consistency checks - haven't used it).... Tim. -- South East Open Source Solutions Limited Registered in England and Wales with company number 06134732. Registered Office: 2 Powell Gardens, Redhill, Surrey, RH1 1TQ VAT number: 900 6633 53 http://seoss.co.uk/ +44-(0)1273-808309 _______________________________________________ Linux-PowerEdge mailing list [email protected] https://lists.us.dell.com/mailman/listinfo/linux-poweredge Please read the FAQ at http://lists.us.dell.com/faq
