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Last day i've found in the dmesg log and i'm quite worried because it's a brand new drive.

What do you think ?

[1681380.516688] ata1.00: status: { DRDY ERR }
[1681380.517264] ata1.00: error: { UNC }
[1681380.518303] ata1.00: configured for UDMA/100
[1681380.518309] ata1: EH complete
[1681380.518767] ata1.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
[1681380.518994] ata1.00: irq_stat 0x40000008
[1681380.519523] ata1.00: failed command: READ FPDMA QUEUED
[1681380.520071] ata1.00: cmd 60/08:00:18:1e:81/00:00:02:00:00/40 tag 0 ncq 4096 in
[1681380.520071]          res 41/40:00:18:1e:81/00:00:02:00:00/40 Emask 0x409 (media error) <F>
[1681380.521159] ata1.00: status: { DRDY ERR }
[1681380.521692] ata1.00: error: { UNC }
[1681380.522697] ata1.00: configured for UDMA/100
[1681380.522704] ata1: EH complete
[1681380.523166] ata1.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
[1681380.523400] ata1.00: irq_stat 0x40000008
[1681380.523861] ata1.00: failed command: READ FPDMA QUEUED
[1681380.524369] ata1.00: cmd 60/08:00:18:1e:81/00:00:02:00:00/40 tag 0 ncq 4096 in
[1681380.524370]          res 41/40:00:18:1e:81/00:00:02:00:00/40 Emask 0x409 (media error) <F>
[1681380.525382] ata1.00: status: { DRDY ERR }
[1681380.525873] ata1.00: error: { UNC }
[1681380.526845] ata1.00: configured for UDMA/100
[1681380.526852] sd 1:0:0:0: [sda] Unhandled sense code
[1681380.526854] sd 1:0:0:0: [sda] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[1681380.526858] sd 1:0:0:0: [sda] Sense Key : Medium Error [current] [descriptor]
[1681380.526863] Descriptor sense data with sense descriptors (in hex):
[1681380.526865]         72 03 11 04 00 00 00 0c 00 0a 80 00 00 00 00 00
[1681380.526874]         02 81 1e 18
[1681380.526878] sd 1:0:0:0: [sda] Add. Sense: Unrecovered read error - auto reallocate failed
[1681380.526883] sd 1:0:0:0: [sda] CDB: Read(10): 28 00 02 81 1e 18 00 00 08 00
[1681380.526892] end_request: I/O error, dev sda, sector 42016280
[1681380.527102] ata1: EH complete
[1681380.527104] EXT4-fs error (device sda1): ext4_find_entry: inode #1311883: (comm updatedb.mlocat) reading directory lblock 0
[1681380.527107] Aborting journal on device sda1-8.
[1681380.528161] EXT4-fs (sda1): Remounting filesystem read-only
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migrated from serverfault.com Jun 1 '11 at 10:43

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2 Answers 2

up vote 4 down vote accepted

Yes. Do a backup immediately and replace it.

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I would like to add "always backup regularly, don't wait until your drive(s) starts to act up because that might be way too late" - if a drive that's misbehaving have you worried - you should rethink your personal backup strategy so you aren't worried ^^ –  Oskar Duveborn Jun 1 '11 at 11:15

Yes. Check the SMART status to confirm.

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