Thursday, December 1, 2011


Awhile back, I purchased a batch of 147GB Maxtor SCSI drives (11 units) for what I thought was a good price (about $20 each). The seller claimed they were in good shape and only lightly used.

Unfortunately, some of them are giving S.M.A.R.T. errors. I put one in the newly reconditioned HP Proliant ML350 G4 that I'm setting up as a Debian "squeeze" box. The kernel log is full of messages that say: "Logical unit failure prediction threshold exceeded".

Looking into the matter, I found that the Linux kernel is printing these messages because the S.M.A.R.T. circuitry in the drive is tripping. The messages were occurring every time I accessed the drive (read or write).

I found no solution to the problem, but I did get rid of the messages by turning off S.M.A.R.T. as follows:

# apt-get install smartmontools
# smartctl -s off /dev/sdb
# smartctl -i /dev/sdb

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