got this on dell poweredge T110 server with 4 disks, including two 3TB
drives (ada2,ada3):
ahcich2: Timeout on slot 8 port 0
ahcich2: is 00000000 cs 1ffffe00 ss 1fffff00 rs 1fffff00 tfd 40 serr
00000000 cmd 0000c817
ahcich2: AHCI reset: device not ready after 31000ms (tfd = 00000080)
(ada2:ahcich2:0:0:0): lost device
GEOM_MIRROR: Request failed (error=6). ada2[WRITE(offset=2997587410944,
length=753664)]
GEOM_MIRROR: Device home1: provider ada2 disconnected.
(ada2:ahcich2:0:0:0): removing device entry
did camcontrol reset 2, rescan 2 and ada2 reappeared
ada2 at ahcich2 bus 0 scbus2 target 0 lun 0
ada2: <WDC WD30EZRX-00DC0B0 80.00A80> ATA-9 SATA 3.x device
ada2: 300.000MB/s transfers (SATA 2.x, UDMA6, PIO 8192bytes)
ada2: Command Queueing enabled
ada2: 2861588MB (5860533168 512 byte sectors: 16H 63S/T 16383C)
GEOM_MIRROR: Component ada2 (device home1) broken, skipping.
GEOM_MIRROR: Cannot add disk ada2 to home1 (error=22).
started gmirror rebuild and it now works at full speed.
GEOM_MIRROR: Device home1: rebuilding provider ada2.
What kind of hardware failure may it be? smartctl -a /dev/ada2 shows disk
is fine.
I use latest FreeBSD-8
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