Re: [smartmontools-support] LOGICAL UNIT FAILURE PREDICTION THRESHOLD EXCEEDED

[Bruce A. <ba...@gr...>]

It means that the device firmware is predicting device failure within the 
next 24 hours. This is not always reliable, but it IS a serious warning.

(1) Get any unreplaceable data off the disk
(2) Replace the disk.  If still under warrranty, the manufacturer will
     give you a new one if you tell them that the SMART status is
     'failing'.

Bruce


On Fri, 1 Feb 2008, Jean-Noel Bouvier wrote:

> Hello all,
>
> I get the following logs on a SCSI disk :
>
> --------------------------
> System logs :
>
> sd 1:0:1:0: SCSI error: return code = 0x8000002
> sdb: Current: sense key: Medium Error
>     Additional sense: Unrecovered read error
> Info fld=0x251af98
> end_request: I/O error, dev sdb, sector 38907776
> --------------------------
>
> which is not "very" frightening ...
>
> but
>
> --------------------------
> Smartctl logs :
>
> SMART Health Status: LOGICAL UNIT FAILURE PREDICTION THRESHOLD EXCEEDED
> [asc=5d, ascq=2]
> --------------------------
>
> Would you please help me to get what "LOGICAL UNIT FAILURE PREDICTION
> THRESHOLD EXCEEDED" means.
>
> Thanks.
>
>