[Gllug] Why Can't disk fail messages be more obvious

[Sean Burlington]

Hi all,

I started getting error messages as below

and the system was hanging

So I went out and got a new disk - have reinstalled and restored & took 
the opportunity to upgrade to Debian ;-)

But I don't really understand these errors, I just figure disk failure 
is bad (I ignored errors I didn't understand once - never again) so I 
replace any disk that shows errors.

Is there a reason that disk errors aren't more categorical?

Is there a handy disk health monitoring program that I can run 
periodically? Should I run badblocks from a weekly cron?

The machine is a laptop subject to frequent transport - used for 
development - generally left on overnight.



Jul 17 22:34:40 ethel kernel: [ 3692.328376] ata1.00: configured for 
UDMA/100
Jul 17 22:34:40 ethel kernel: [ 3692.328405] ata1: EH complete
Jul 17 22:34:40 ethel kernel: [ 3692.328509] sd 0:0:0:0: [sda] 312581808 
512-byte hardware sectors (160042 MB)
Jul 17 22:34:40 ethel kernel: [ 3692.328546] sd 0:0:0:0: [sda] Write 
Protect is off
Jul 17 22:34:40 ethel kernel: [ 3692.328610] sd 0:0:0:0: [sda] Write 
cache: enabled, read cache: enabled, doesn't support DPO or FUA
Jul 17 22:34:40 ethel kernel: [ 3695.941881] ata1.00: configured for 
UDMA/100
Jul 17 22:34:40 ethel kernel: [ 3695.941910] ata1: EH complete
Jul 17 22:34:40 ethel kernel: [ 3695.942009] sd 0:0:0:0: [sda] 312581808 
512-byte hardware sectors (160042 MB)
Jul 17 22:34:40 ethel kernel: [ 3695.942043] sd 0:0:0:0: [sda] Write 
Protect is off
Jul 17 22:34:40 ethel kernel: [ 3695.942104] sd 0:0:0:0: [sda] Write 
cache: enabled, read cache: enabled, doesn't support DPO or FUA
Jul 17 22:34:40 ethel kernel: [ 3699.524602] ata1.00: configured for 
UDMA/100
Jul 17 22:34:40 ethel kernel: [ 3699.524623] ata1: EH complete
Jul 17 22:34:40 ethel kernel: [ 3699.524713] sd 0:0:0:0: [sda] 312581808 
512-byte hardware sectors (160042 MB)
Jul 17 22:34:40 ethel kernel: [ 3699.524746] sd 0:0:0:0: [sda] Write 
Protect is off
Jul 17 22:34:40 ethel kernel: [ 3699.524803] sd 0:0:0:0: [sda] Write 
cache: enabled, read cache: enabled, doesn't support DPO or FUA
Jul 17 22:34:40 ethel kernel: [ 3703.291626] ata1.00: configured for 
UDMA/100
Jul 17 22:34:40 ethel kernel: [ 3703.291648] ata1: EH complete
Jul 17 22:34:40 ethel kernel: [ 3703.291737] sd 0:0:0:0: [sda] 312581808 
512-byte hardware sectors (160042 MB)
Jul 17 22:34:40 ethel kernel: [ 3703.291770] sd 0:0:0:0: [sda] Write 
Protect is off
Jul 17 22:34:40 ethel kernel: [ 3703.291827] sd 0:0:0:0: [sda] Write 
cache: enabled, read cache: enabled, doesn't support DPO or FUA
Jul 17 22:34:40 ethel kernel: [ 3706.866918] ata1.00: configured for 
UDMA/100
Jul 17 22:34:40 ethel kernel: [ 3706.866942] ata1: EH complete
Jul 17 22:34:40 ethel kernel: [ 3706.867067] sd 0:0:0:0: [sda] 312581808 
512-byte hardware sectors (160042 MB)
Jul 17 22:34:40 ethel kernel: [ 3706.867102] sd 0:0:0:0: [sda] Write 
Protect is off
Jul 17 22:34:40 ethel kernel: [ 3706.867164] sd 0:0:0:0: [sda] Write 
cache: enabled, read cache: enabled, doesn't support DPO or FUA
Jul 17 22:34:40 ethel kernel: [ 3710.593030] ata1.00: configured for 
UDMA/100
Jul 17 22:34:40 ethel kernel: [ 3710.593069] sd 0:0:0:0: [sda] Result: 
hostbyte=DID_OK driverbyte=DRIVER_SENSE,SUGGEST_OK
Jul 17 22:34:40 ethel kernel: [ 3710.593079] sd 0:0:0:0: [sda] Sense Key 
: Medium Error [current] [descriptor]
Jul 17 22:34:40 ethel kernel: [ 3710.593090] Descriptor sense data with 
sense descriptors (in hex):
Jul 17 22:34:40 ethel kernel: [ 3710.593096]         72 03 11 04 00 00 
00 0c 00 0a 80 00 00 00 00 00
Jul 17 22:34:40 ethel kernel: [ 3710.593120]         02 de 54 00
Jul 17 22:34:40 ethel kernel: [ 3710.593130] sd 0:0:0:0: [sda] Add. 
Sense: Unrecovered read error - auto reallocate failed
Jul 17 22:34:40 ethel kernel: [ 3710.593170] ata1: EH complete
Jul 17 22:34:40 ethel kernel: [ 3710.593267] sd 0:0:0:0: [sda] 312581808 
512-byte hardware sectors (160042 MB)
Jul 17 22:34:40 ethel kernel: [ 3710.593301] sd 0:0:0:0: [sda] Write 
Protect is off
Jul 17 22:34:40 ethel kernel: [ 3710.593572] sd 0:0:0:0: [sda] Write 
cache: enabled, read cache: enabled, doesn't support DPO or FUA
-- 


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