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List: smartmontools-support
Subject: Re: [smartmontools-support] 4294967295 Offline uncorrectable sectors
From: "Manfred Schwarb" <manfred99 () gmx ! ch>
Date: 2007-01-09 23:07:51
Message-ID: 20070109230751.87460 () gmx ! net
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>
> It is now clear to me that the "4294967295" is the raw value and that the
> effective number of bad sectors is 1?
No, that's not clear at all, not only the raw values, also the normalized
values of Current_Pending_Sector and Offline_Uncorrectable are odd.
This looks very fishy, maybe a firmware flaw.
Perhaps you can ask Seagate support for clarification and report back?
> How can i know whether this sector is still bad or whether it is
> reallocated
> (i see that Reallocated_Sector_Ct is 98, does this mean that 100-98=2
> sectors
> have been reallocated)?
No, the "98" is the normalized number, which is quite meaningless.
You have to look at the raw value, which is "90". 90 reallocated
sectors are quite a lot. It may be that Seagate's disks are much more
"keen" on reallocating sectors than other brands, nevertheless it's
really a lot. Personally I thow disks away with more than a few
handful's of bad sectors (i.e. <10-20 or so), or try RMA'ing the disk.
If other items look fishy as well, my disks even fly much earlier.
Disks are cheap, live is short.
regards,
Manfred
> Why is smartd reporting every day that there are 4294967295 bad sectors,
> while
> the selftest passes without any indication of a bad LBA?
>
> I hope someone can put me on the right track to understand this issue
> better.
> cheers,
> dirk
>
> On Thursday 28 December 2006 10:44, dirk ooms wrote:
> > Hello list,
> >
> > i had an incident on my server (kernel panic, the green led on
> > the seagate disk was permanent on). after removing and inserting the
> disks,
> > the system came up again (i have 2 disks in (software) raid 1).
> >
> > Since then smartd reports me following problem:
> > "4294967295 Offline uncorrectable sectors"
> >
> > what strikes me is this number of sectors, which is 0xffffffff and which
> is
> > more than the number of sectors on the disk. so i'm wondering whether
> i'm
> > confronted here with a disk problem or a smartd problem.
> >
> > i ran the long selftest with smartctl and it "Completed without eror",
> but
> > i still have the above error showing up .
> >
> > thanks for any guidance on this,
> > dirk
> >
> > partial output of smartctl -a
> >
> > === START OF INFORMATION SECTION ===
> > Device Model: ST3200827AS
> > Serial Number: 5ND43GWE
> > Firmware Version: 3.AAH
> > User Capacity: 200,049,647,616 bytes
> > Device is: Not in smartctl database [for details use: -P
> showall]
> > ATA Version is: 7
> > ATA Standard is: Exact ATA specification draft version not indicated
> > Local Time is: Sun Dec 24 14:25:41 2006 CET
> > SMART support is: Available - device has SMART capability.
> > SMART support is: Enabled
> >
> > === START OF READ SMART DATA SECTION ===
> > SMART overall-health self-assessment test result: PASSED
> >
> > General SMART Values:
> > Offline data collection status: (0x82) Offline data collection
> activity
> > was
> completed without error.
> > Auto Offline
> Data Collection:
> > Enabled. Self-test execution status: ( 0) The previous
> self-test
> > routine completed
> > without
> error or no self-test has
> > ever been run.
> > Total time to complete Offline
> > data collection: ( 430) seconds.
> > Offline data collection
> > capabilities: (0x5b) SMART execute Offline
> immediate.
> > Auto Offline
> data collection on/off
> > support.
> > Suspend
> Offline collection upon new
> > command.
> > Offline
> surface scan supported.
> > Self-test
> supported.
> > No
> Conveyance Self-test supported.
> > Selective
> Self-test supported.
> > SMART capabilities: (0x0003) Saves SMART data before
> entering
> > power-saving
> mode.
> > Supports
> SMART auto save timer.
> > Error logging capability: (0x01) Error logging supported.
> > General
> Purpose Logging supported.
> > Short self-test routine
> > recommended polling time: ( 1) minutes.
> > Extended self-test routine
> > recommended polling time: ( 70) minutes.
> >
> > SMART Attributes Data Structure revision number: 10
> > Vendor Specific SMART Attributes with Thresholds:
> > ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE
> UPDATED
> > WHEN_FAILED RAW_VALUE
> > 1 Raw_Read_Error_Rate 0x000f 095 077 006 Pre-fail
> Always
> > - 104670423
> > 3 Spin_Up_Time 0x0003 090 090 000
> Pre-fail Always
> > - 0
> > 4 Start_Stop_Count 0x0032 100 100 020
> Old_age Always
> > - 43
> > 5 Reallocated_Sector_Ct 0x0033 098 098 036 Pre-fail
> Always
> > - 90
> > 7 Seek_Error_Rate 0x000f 055 053 030
> Pre-fail Always
> > - 94495961156
> > 9 Power_On_Hours 0x0032 098 098 000
> Old_age Always
> > - 2334
> > 10 Spin_Retry_Count 0x0013 100 100 097
> Pre-fail Always
> > - 0
> > 12 Power_Cycle_Count 0x0032 100 100 020 Old_age
> Always
> > - 47
> > 187 Unknown_Attribute 0x0032 001 001 000 Old_age
> Always
> > - 9995
> > 189 Unknown_Attribute 0x003a 100 100 000 Old_age
> Always
> > - 0
> > 190 Unknown_Attribute 0x0022 071 063 045 Old_age
> Always
> > - 7224707121181
> > 194 Temperature_Celsius 0x0022 029 040 000 Old_age
> Always
> > - 29 (Lifetime Min/Max 0/22)
> > 195 Hardware_ECC_Recovered 0x001a 052 048 000 Old_age
> Always
> > - 194549275
> > 197 Current_Pending_Sector 0x0012 001 001 000 Old_age
> Always
> > - 4294967295
> > 198 Offline_Uncorrectable 0x0010 001 001 000 Old_age
> Offline
> > - 4294967295
> > 199 UDMA_CRC_Error_Count 0x003e 200 200 000 Old_age
> Always
> > - 0
> > 200 Multi_Zone_Error_Rate 0x0000 100 253 000 Old_age
> Offline
> > - 0
> > 202 TA_Increase_Count 0x0032 100 253 000 Old_age
> Always
> > - 0
> >
> >
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