I have two (identical) hard drives. Every night, I have a cron job that
cats /dev/hda > /dev/hdb . Lately I've been finding DMA off at the
conclusion of this copy. From last night (this morning) in
/var/log/messages:
May 23 06:08:20 pc kernel: hdb: dma_timer_expiry: dma status == 0x61
May 23 06:08:21 pc kernel: hdb: DMA timeout error
May 23 06:08:21 pc kernel: hdb: dma timeout error: status=0xd0 { Busy }
May 23 06:08:21 pc kernel: ide: failed opcode was: unknown
May 23 06:08:21 pc kernel: hda: DMA disabled
May 23 06:08:21 pc kernel: hdb: DMA disabled
May 23 06:08:21 pc kernel: ide0: reset: success
Is it time to replace that drive?
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