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Linux Kernel dma_timer_expiry dma status on Hyper-V R2
Posted in Linux Server | No Comment | 5,045 views | 27/01/2010 12:25

You may get this error on Hyper-V R2 if you use Cluster Shared Volumes.

server kernel: hda: dma_timer_expiry: dma status == 0x20
server kernel: hda: DMA timeout retry
server kernel: hda: timeout waiting for DMA

Check Windows event logs and look for iscsi problems and informations. Also using differet CSV volumes for failover clustering may solve the problem. You need balance your virtual machines on different Cluster Shared Volumes.



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