From: Carlos S. <car...@gm...> - 2005-06-03 01:07:00
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Maybe kind of a newbie but I didn't find it in the archives.. Recently I detected a series of errors on my hard drive (it's a laptop one), I noted that sometimes performance would slow to a crawl, like when it was accessing some parts of the disk.. I searched and found a utility called mhdd, scanned the drive, and I corrected the errors, I think. Now I get this.. [root@localhost ~]# smartctl -a /dev/hda | grep 'Reallocated_Sector_Ct' 5 Reallocated_Sector_Ct 0x0033 001 001 050 Pre-fail=20 Always FAILING_NOW 1023 I've investigated, and I know what reallocated sectors are.. but what I'd would like to know is what are the values 001 001 050.. I've read the legends but I don't understand them.. And .. is this error some kind of indicator that my hard drive is going to die ? Or some reallocated sectors is normal after some use? Thanks to all. |
From: Sebastian V. <seb...@he...> - 2005-06-03 12:52:17
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On Fri, 2005-06-03 at 02:05 +0100, Carlos Silva wrote: > Now I get this.. > [root@localhost ~]# smartctl -a /dev/hda | grep 'Reallocated_Sector_Ct' > 5 Reallocated_Sector_Ct 0x0033 001 001 050 Pre-fail > Always FAILING_NOW 1023 Your harddrive has a number of reserve sectors to replace damaged sectors. Once the number of reserve sectors left goes below a limit set by the drive manufacturer SMART considers your drive as having failed. This is the case here. The first number (001) is a normalized value derieved by a calculation specified by the drive manufacturer. Normally it counts down from 100 as sectors on your drive are replaced with spares. Remember this is 'normalized' and not a one to one mapping. The last number of the three (050) is the limit set by the manufacturer. Also of interest is the very last value on the line (1023). It is the raw value for this item. Usually this should show the number of actual sectors damaged. Assuming the raw data is correct your drive has 1023 failed sectors. That is a lot, possibly caused by dropping the drive or serious overheating. What ever the cause, this drive can not be trusted to store data and if you are still on warranty you should be able to get a replacement. You can find more information on the relation of the 'normalized' values to the 'raw' values from the smartctl manpage under the heading '-A, --attributes'. Sebastian |
From: Bruce A. <ba...@gr...> - 2005-06-03 14:14:52
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Carlos, Sebastian is correct. This drive has run out of spare sectors (or will run out very soon). The drive has failed: get it replaced. If under warranty the vendor will replace it for free. If not under warranty, please throw it in the trash. Cheers, Bruce On Fri, 3 Jun 2005, Sebastian Vuorinen wrote: > On Fri, 2005-06-03 at 02:05 +0100, Carlos Silva wrote: > > Now I get this.. > > [root@localhost ~]# smartctl -a /dev/hda | grep 'Reallocated_Sector_Ct' > > 5 Reallocated_Sector_Ct 0x0033 001 001 050 Pre-fail > > Always FAILING_NOW 1023 > > Your harddrive has a number of reserve sectors to replace damaged > sectors. Once the number of reserve sectors left goes below a limit set > by the drive manufacturer SMART considers your drive as having failed. > This is the case here. > > The first number (001) is a normalized value derieved by a calculation > specified by the drive manufacturer. Normally it counts down from 100 as > sectors on your drive are replaced with spares. Remember this is > 'normalized' and not a one to one mapping. The last number of the three > (050) is the limit set by the manufacturer. > > Also of interest is the very last value on the line (1023). It is the > raw value for this item. Usually this should show the number of actual > sectors damaged. Assuming the raw data is correct your drive has 1023 > failed sectors. That is a lot, possibly caused by dropping the drive or > serious overheating. What ever the cause, this drive can not be trusted > to store data and if you are still on warranty you should be able to get > a replacement. > > You can find more information on the relation of the 'normalized' values > to the 'raw' values from the smartctl manpage under the heading '-A, > --attributes'. > > Sebastian > > > > > ------------------------------------------------------- > This SF.Net email is sponsored by Yahoo. > Introducing Yahoo! Search Developer Network - Create apps using Yahoo! > Search APIs Find out how you can build Yahoo! directly into your own > Applications - visit http://developer.yahoo.net/?fr=offad-ysdn-ostg-q22005 > _______________________________________________ > Smartmontools-support mailing list > Sma...@li... > https://lists.sourceforge.net/lists/listinfo/smartmontools-support > > |
From: Steve A. <Ste...@ac...> - 2010-09-29 14:30:15
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Hello, I do not understand the SMART attribute output in respect of reallocated sector count: Here is the output of the drive: smartctl 5.40 2010-07-12 r3124 [i686-pc-linux-gnu] (local build) Copyright (C) 2002-10 by Bruce Allen, http://smartmontools.sourceforge.net === START OF INFORMATION SECTION === Model Family: Hitachi Travelstar 5K100 Device Model: HTS541080G9SA00 Serial Number: MPBDL0XNGS9SXM Firmware Version: MB4OC60P User Capacity: 80,026,361,856 bytes Device is: In smartctl database [for details use: -P show] ATA Version is: 7 ATA Standard is: ATA/ATAPI-7 T13 1532D revision 1 Local Time is: Wed Sep 29 14:52:10 2010 BST SMART support is: Available - device has SMART capability. SMART support is: Enabled Here is the normal ID 5 output: 5 Reallocated_Sector_Ct 0x0033 100 100 005 Pre-fail Always - 31 (0, 2) And the raw output. 5 Reallocated_Sector_Ct 0x0033 100 100 005 Pre-fail Always - 0x00000002001f What does the data in the brackets mean. I have googled searched the mailing lists, sorry if already covered. I have 31 reallocated errors ? Thanks Full attribute log: SMART Attributes Data Structure revision number: 16 Vendor Specific SMART Attributes with Thresholds: ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE 1 Raw_Read_Error_Rate 0x000b 100 099 062 Pre-fail Always - 0 2 Throughput_Performance 0x0005 105 100 040 Pre-fail Offline - 4570 3 Spin_Up_Time 0x0007 253 100 033 Pre-fail Always - 1 4 Start_Stop_Count 0x0012 100 100 000 Old_age Always - 295 5 Reallocated_Sector_Ct 0x0033 100 100 005 Pre-fail Always - 31 (0, 2) 7 Seek_Error_Rate 0x000b 100 100 067 Pre-fail Always - 0 8 Seek_Time_Performance 0x0005 126 100 040 Pre-fail Offline - 37 9 Power_On_Hours 0x0012 082 082 000 Old_age Always - 8090 10 Spin_Retry_Count 0x0013 100 100 060 Pre-fail Always - 0 12 Power_Cycle_Count 0x0032 100 100 000 Old_age Always - 283 191 G-Sense_Error_Rate 0x000a 100 095 000 Old_age Always - 0 192 Power-Off_Retract_Count 0x0032 100 100 000 Old_age Always - 19005456 193 Load_Cycle_Count 0x0012 098 098 000 Old_age Always - 20023 194 Temperature_Celsius 0x0002 161 100 000 Old_age Always - 34 (Lifetime Min/Max 12/49) 196 Reallocated_Event_Count 0x0032 100 100 000 Old_age Always - 3 197 Current_Pending_Sector 0x0022 100 100 000 Old_age Always - 0 198 Offline_Uncorrectable 0x0008 100 100 000 Old_age Offline - 0 199 UDMA_CRC_Error_Count 0x000a 200 253 000 Old_age Always - 0 |