Steve Fairbairn wrote:
Hi All,
I've got a degraded RAID5 which I'm trying to add in the replacement
disk. Trouble is, every time the recovery starts, it flies along at
70MB/s or so. Then after doing about 1%, it starts dropping rapidly,
until eventually a device is marked failed.
When I look in dmesg, I get the following...
SCSI device sdd: 976773168 512-byte hdwr sectors (500108 MB)
sdd: Write Protect is off
sdd: Mode Sense: 00 3a 00 00
SCSI device sdd: drive cache: write back
ata5.00: exception Emask 0x0 SAct 0x7ff SErr 0x0 action 0x0
ata5.00: (irq_stat 0x00060002, device error via SDB FIS)
ata5.00: cmd 60/00:10:3f:0e:f9/01:00:00:00:00/40 tag 2 cdb 0x0 data
131072 in
res 41/40:00:50:0e:f9/9c:00:00:00:00/40 Emask 0x9 (media error)
ata5.00: configured for UDMA/100
ata5: EH complete
SCSI device sdd: 976773168 512-byte hdwr sectors (500108 MB)
sdd: Write Protect is off
sdd: Mode Sense: 00 3a 00 00
SCSI device sdd: drive cache: write back
ata5.00: exception Emask 0x0 SAct 0x7ff SErr 0x0 action 0x0
ata5.00: (irq_stat 0x00060002, device error via SDB FIS)
ata5.00: cmd 60/00:18:3f:02:f9/01:00:00:00:00/40 tag 3 cdb 0x0 data
131072 in
res 41/40:00:c3:02:f9/9c:00:00:00:00/40 Emask 0x9 (media error)
"media error" means just that -- your hard drive is reporting bad media
to libata, which in turn dutifully reports that info to you :)
Jeff
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