Dear friends,
I had installed centos in IBM machine with RAID level1. The model number
of the machine is "System X3200 M2". After the the installation, when i work
on the terminal, some message are showing at regular time interval. The
messages are given below.
"
Mar 1 21:34:03 localhost kernel: ata1.00: status: { DRDY ERR }
Mar 1 21:34:03 localhost kernel: ata1.00: error: { UNC }
Mar 1 21:34:03 localhost kernel: ata1.00: configured for UDMA/133
Mar 1 21:34:03 localhost kernel: ata1: EH complete
Mar 1 21:34:03 localhost kernel: ata1.00: exception Emask 0x0 SAct 0x0 SErr
0x0 action 0x0
Mar 1 21:34:03 localhost kernel: ata1.00: BMDMA stat 0x24
Mar 1 21:34:03 localhost kernel: ata1.00: cmd
25/00:08:e6:2a:75/00:00:1b:00:00/e0 tag 0 dma 4096 in
Mar 1 21:34:03 localhost kernel: res
51/40:00:e7:2a:75/40:00:1b:00:00/e0 Emask 0x9 (media error)
Mar 1 21:34:03 localhost kernel: ata1.00: status: { DRDY ERR }
Mar 1 21:34:03 localhost kernel: ata1.00: error: { UNC }
Mar 1 21:34:03 localhost kernel: ata1.00: configured for UDMA/133
Mar 1 21:34:03 localhost kernel: sd 0:0:0:0: SCSI error: return code =
0x08000002
Mar 1 21:34:03 localhost kernel: sda: Current [descriptor]: sense key:
Medium Error
Mar 1 21:34:03 localhost kernel: Add. Sense: Unrecovered read error -
auto reallocate failed
Mar 1 21:34:03 localhost kernel:
Mar 1 21:34:03 localhost kernel: Descriptor sense data with sense
descriptors (in hex):
Mar 1 21:34:03 localhost kernel: 72 03 11 04 00 00 00 0c 00 0a 80
00 00 00 00 00
Mar 1 21:34:03 localhost kernel: 1b 75 2a e7
Mar 1 21:34:03 localhost kernel: end_request: I/O error, dev sda, sector
460663527
Mar 1 21:34:03 localhost kernel: ata1: EH complete
Mar 1 21:34:03 localhost kernel: SCSI device sda: 488397168 512-byte hdwr
sectors (250059 MB)
Mar 1 21:34:03 localhost kernel: sda: Write Protect is off
Mar 1 21:34:03 localhost kernel: SCSI device sda: drive cache: write back
Mar 1 21:34:03 localhost kernel: SCSI device sda: 488397168 512-byte hdwr
sectors (250059 MB)
Mar 1 21:34:03 localhost kernel: sda: Write Protect is off
Mar 1 21:34:03 localhost kernel: SCSI device sda: drive cache: write back
"
Could you please tel me, what is the course of this message and how to avoid
this message from the terminal
--
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