LOGICAL UNIT FAILURE PREDICTION THRESHOLD EXCEEDED

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.

Sunny Song/Singapore/HGST is out of the office.

I will be out of the office starting  02/01/2008 and will not return until
02/10/2008.

If there is any urgent issues, pls contact my backup Mr. Kenny Lim at
"kenny.lim <at> hitachigst.com ".

Thanks.

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Re: smartctl does not see /dev/tw* for 3ware 9650SE

Hi Igor,

How do you suggest that we improve the error messages or documentation to 
avoid these problems in the future?

Cheers,
 	Bruce

On Fri, 1 Feb 2008, Igor Chudov wrote:

> Bruce, thanks, everything is working great now!
>
> Thank you for your wonderful tools!
>
> igor
>

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SmartCTL Exit Status

Hi!

  Please someone tell me what means if in munin graphic  
smartctl_exit_status=64! I found it after some pending sector.

Thanks
  Gergely

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Re: SmartCTL Exit Status

'man startctl' and look under 'RETURN VALUES':

        Bit 6: The device error log contains records of errors.

On Sun, 3 Feb 2008, Németh Gergely wrote:

> Hi!
>
>  Please someone tell me what means if in munin graphic
> smartctl_exit_status=64! I found it after some pending sector.
>
> Thanks
>  Gergely
>
> ----------------------------------------------------------------
> This message was sent using IMP, the Internet Messaging Program.
>
>
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Re: LOGICAL UNIT FAILURE PREDICTION THRESHOLD EXCEEDED

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
>

smartd vs. smartctl: Fusion MPT SAS/SATA RAID controller and physical disks (/dev/sg*)

Hi!

I have 2 Seagate ST3250620NS SATA disks connected to a Dell SAS6/iR
SAS/SATA RAID controller. The Fusion MPT controller driver hands the
physical disks over to Linux as SCSI generic (not disk) devices
(/dev/sg1 and /dev/sg2).

smartctl -d sat -a /dev/sg1 works fine and shows all the information,
whereas smartd (with '/dev/sg1 -d sat -a' in smartd.conf) says this:
--8<--
daemon.info; smartd[25129]: smartd version 5.37 [x86_64-pc-linux-gnu] Copyright (C) 2002-6 Bruce Allen
daemon.info; smartd[25129]: Home page is http://smartmontools.sourceforge.net/
daemon.info; smartd[25129]: Opened configuration file /etc/smartd.conf
daemon.info; smartd[25129]: Configuration file /etc/smartd.conf parsed.
daemon.info; smartd[25129]: Device: /dev/sg1, opened
daemon.info; smartd[25129]: Device: /dev/sg1, not found in smartd database.
daemon.info; smartd[25129]: Device: /dev/sg1, is SMART capable. Adding to "monitor" list.
daemon.info; smartd[25129]: Monitoring 1 ATA and 0 SCSI devices
daemon.info; smartd[25129]: Device: /dev/sg1, not capable of SMART self-check
daemon.crit; smartd[25129]: Device: /dev/sg1, failed to read SMART Attribute Data
daemon.info; smartd[25129]: Device: /dev/sg1, Read SMART Self Test Log Failed
daemon.info; smartd[25129]: Device: /dev/sg1, Read SMART Error Log Failed
daemon.info; smartd[25131]: smartd has fork()ed into background mode. New PID=25131.
daemon.info; smartd[25131]: file /var/run/smartd.pid written containing PID 25131
--8<--

What could be the reason for smartd and smartctl behaving different?!

TIA.
--

-- 

Re: smartd vs. smartctl: Fusion MPT SAS/SATA RAID controller and physical disks (/dev/sg*)

This looks to me like a bug.  Could you verify that your smartctl and 
smartd executables are coming from the same release code?  And perhaps 
check against current CVS HEAD?

On Tue, 5 Feb 2008, Wolfram Schlich wrote:

> Hi!
>
> I have 2 Seagate ST3250620NS SATA disks connected to a Dell SAS6/iR
> SAS/SATA RAID controller. The Fusion MPT controller driver hands the
> physical disks over to Linux as SCSI generic (not disk) devices
> (/dev/sg1 and /dev/sg2).
>
> smartctl -d sat -a /dev/sg1 works fine and shows all the information,
> whereas smartd (with '/dev/sg1 -d sat -a' in smartd.conf) says this:
> --8<--
> daemon.info; smartd[25129]: smartd version 5.37 [x86_64-pc-linux-gnu] Copyright (C) 2002-6 Bruce Allen
> daemon.info; smartd[25129]: Home page is http://smartmontools.sourceforge.net/
> daemon.info; smartd[25129]: Opened configuration file /etc/smartd.conf
> daemon.info; smartd[25129]: Configuration file /etc/smartd.conf parsed.
> daemon.info; smartd[25129]: Device: /dev/sg1, opened
> daemon.info; smartd[25129]: Device: /dev/sg1, not found in smartd database.
> daemon.info; smartd[25129]: Device: /dev/sg1, is SMART capable. Adding to "monitor" list.
> daemon.info; smartd[25129]: Monitoring 1 ATA and 0 SCSI devices
> daemon.info; smartd[25129]: Device: /dev/sg1, not capable of SMART self-check
> daemon.crit; smartd[25129]: Device: /dev/sg1, failed to read SMART Attribute Data
> daemon.info; smartd[25129]: Device: /dev/sg1, Read SMART Self Test Log Failed
> daemon.info; smartd[25129]: Device: /dev/sg1, Read SMART Error Log Failed
> daemon.info; smartd[25131]: smartd has fork()ed into background mode. New PID=25131.
> daemon.info; smartd[25131]: file /var/run/smartd.pid written containing PID 25131

Re: smartd vs. smartctl: Fusion MPT SAS/SATA RAID controller and physical disks (/dev/sg*)

* Bruce Allen <ballen <at> gravity.phys.uwm.edu> [2008-02-05 18:21]:
> This looks to me like a bug.  Could you verify that your smartctl and 
> smartd executables are coming from the same release code?

They are, 100%.

> And perhaps check against current CVS HEAD?

Ok, will do :)
--

-- 
Regards,
Wolfram Schlich <wschlich <at> gentoo.org>
Gentoo Linux * http://dev.gentoo.org/~wschlich/

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Re: smartd vs. smartctl: Fusion MPT SAS/SATA RAID controller and physical disks (/dev/sg*)

* Bruce Allen <ballen <at> gravity.phys.uwm.edu> [2008-02-05 18:21]:
> And perhaps check against current CVS HEAD?

Done -- current CVS HEAD has the same behaviour.
--

-- 
Regards,
Wolfram Schlich <wschlich <at> gentoo.org>
Gentoo Linux * http://dev.gentoo.org/~wschlich/

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