[fsug-tvm] Re: filesystem got corrupted after filesystem check.........
2009/9/1 Visakh gokulda...@gmail.com: Detailed information on how to use smartmontools and analyze its output are available on following pages: http://blog.shadypixel.com/monitoring-hard-drive-health-on-linux-with-smartmontools/ http://www.linuxjournal.com/article/6983 Smartmontool shows many such parameters - along with their thresholds. If a parameter drops below its threshold, it indicates bad health. Some parameters indicate impending disaster if they fall below their threshold. Others indicate gradual degradation due to poor environment. Anyway, its is useful for assessing and predicting failures. I hope this becomes useful to you. Please let us know about your experiments with it. Thanks, Goul, for these bits of information. I am travelling riight now - Onam vacation, you know :-) I will loo into these after I return and get back to you. Best -- V. Sasi Kumar Free Software Foundation of India Please see: http://swatantryam.blogspot.com/ --~--~-~--~~~---~--~~ Freedom is the only law. Freedom Unplugged http://www.ilug-tvm.org You received this message because you are subscribed to the Google Groups ilug-tvm group. To post to this group, send email to ilug-tvm@googlegroups.com To unsubscribe from this group, send email to ilug-tvm-unsubscr...@googlegroups.com For details visit the website: www.ilug-tvm.org or the google group page: http://groups.google.com/group/ilug-tvm?hl=en -~--~~~~--~~--~--~---
[fsug-tvm] Re: filesystem got corrupted after filesystem check.........
Well, I didn't say that it has caused h/w problems. I only said that it may have caused problems. Even if it did, it may not show up immediately. It may cause a shortening of disk life, which is not immediately apparent. Sudden disk power downs are always very traumatic. @gokul OMG OMG!!!you make me nerveous!! Just in case you want to know the health of your Hard drive, you can use SMART (Self-Monitoring, Analysis, and Reporting Technology). In Gnu/Linux, it is made available using smartmontools package. I can give more details if you are interested. @gokul i ran SMART and i was not smart enough to decode the output.Please spare some time analysing the text that follows((Man do it.. ITS my HARDDISk :) )) smartctl version 5.38 [i686-pc-linux-gnu] Copyright (C) 2002-8 Bruce Allen Home page is http://smartmontools.sourceforge.net/ === START OF READ SMART DATA SECTION === 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 116 099 006Pre-fail Always - 107145378 3 Spin_Up_Time0x0003 095 095 000Pre-fail Always - 0 4 Start_Stop_Count0x0032 097 097 020Old_age Always - 3285 5 Reallocated_Sector_Ct 0x0033 100 100 036Pre-fail Always - 0 7 Seek_Error_Rate 0x000f 084 060 030Pre-fail Always - 272486406 9 Power_On_Hours 0x0032 097 097 000Old_age Always - 3355 10 Spin_Retry_Count0x0013 100 100 097Pre-fail Always - 0 12 Power_Cycle_Count 0x0032 097 097 020Old_age Always - 3365 187 Reported_Uncorrect 0x0032 100 100 000Old_age Always - 0 189 High_Fly_Writes 0x003a 100 100 000Old_age Always - 0 190 Airflow_Temperature_Cel 0x0022 059 048 045Old_age Always - 41 (Lifetime Min/Max 27/41) 194 Temperature_Celsius 0x0022 041 052 000Old_age Always - 41 (0 25 0 0) 195 Hardware_ECC_Recovered 0x001a 070 046 000Old_age Always - 190554089 197 Current_Pending_Sector 0x0012 100 100 000Old_age Always - 0 198 Offline_Uncorrectable 0x0010 100 100 000Old_age Offline - 0 199 UDMA_CRC_Error_Count0x003e 200 200 000Old_age Always - 0 200 Multi_Zone_Error_Rate 0x 100 253 000Old_age Offline - 0 202 TA_Increase_Count 0x0032 100 253 000Old_age Always - 0 --~--~-~--~~~---~--~~ Freedom is the only law. Freedom Unplugged http://www.ilug-tvm.org You received this message because you are subscribed to the Google Groups ilug-tvm group. To post to this group, send email to ilug-tvm@googlegroups.com To unsubscribe from this group, send email to ilug-tvm-unsubscr...@googlegroups.com For details visit the website: www.ilug-tvm.org or the google group page: http://groups.google.com/group/ilug-tvm?hl=en -~--~~~~--~~--~--~---
[fsug-tvm] Re: Filesystem got corrupted after filesystem check.........
@gokul Thanks Gokul ,that was informative for me.And i hope all of us are benefited by this tool SMART. Regards, Srihari 9809486518 On 9/2/09, Visakh gokulda...@gmail.com wrote: Hi, On Sep 2, 1:58 pm, Srihari k harisult...@gmail.com wrote: @gokul OMG OMG!!!you make me nerveous!! Haha! Sorry for that! But remember that you are dealing with a machine. It could fail anytime - be prepared always. Power system and hard drives are especially worrying. Any part of the system can be easily restored after a failure - except the data that represent your hard work. As long as it is backed up with multiple copies, you don't need to worry about anything. @gokul i ran SMART and i was not smart enough to decode the output.Please spare some time analysing the text that follows((Man do it.. ITS my HARDDISk :) )) Funny! In the industry, the hard drives are the devices that the specialists care least about - even though the data in them is considered most precious. As for the SMART data, it is really easy to interpret. The instructions are available in the second link I gave earlier. And looking at your HDD data, looks like it is healthy for now. All the parameters are above their minimum thresholds - meaning that the HDD is safe for now. There are 2 parameters you have to specially watch out for in the future. 1. Seek error rate: Lowest value recorded: 60 (out of 255) Minimum threshold: 30 (out of 255) 2. Spin retry count: Lowest value recorded: 100 (out of 255) Minimum threshold: 97 (out of 255) Both these parameters are 'Pre-fail' type. That means that if they ever touch the minimum threshold or go below it, that indicates impending drive failure. You will have to take emergency measures if such a situation arises. Right now, both parameters are above the threshold, but slowly creeping down towards it. Right now, these are not a problem. But watch out for them in the long run (you can check the data once in a month or two). There is one another parameter, which if improved, can extend drive life: 3. Air flow temperature (deg Celsius): Lowest value recorded: 48 (out of 255) ~ 41 deg (highest recorded). Minimum threshold: 45 (out of 255) This is an 'old-age' type parameter. If this value goes below the threshold (ie, if the drive overheats), the drive performance and health will start to degrade. Low value for this parameter indicates poor air cooling condition. Improving cooling can improve life. If you feel like correcting this condition, you will have to consult a specialist - unfortunately, I am incompetent to comment on it. Hope I was able to address some of your concerns. Wish you good luck with drives and data in the future! Regards, Gokul Das -- Srihari K --~--~-~--~~~---~--~~ Freedom is the only law. Freedom Unplugged http://www.ilug-tvm.org You received this message because you are subscribed to the Google Groups ilug-tvm group. To post to this group, send email to ilug-tvm@googlegroups.com To unsubscribe from this group, send email to ilug-tvm-unsubscr...@googlegroups.com For details visit the website: www.ilug-tvm.org or the google group page: http://groups.google.com/group/ilug-tvm?hl=en -~--~~~~--~~--~--~---
[fsug-tvm] Re: filesystem got corrupted after filesystem check.........
Hi, @ Sasi sir: The errors you mentioned are very general and I cannot make anything out of it. But if you suspect hard disk issues, you are completely justified (and of course your immense experience lends it credibilty). Errors caused by a failing hard disk are sometimes very strange and leave the user clueless. The first choice in that case is to use 'fsck' to check file system integrity. But SMART is better suited to check for the problems you suspect. It is even useful for preparing for hard disk failure in advance. SMART is a semi-standard technology whereby hard disks record their own health information - like temperature, seek error rate, spin up time and a lot of others. This information can be accessed using appropriate software to assess the health of hard drive. In case of GNU/Linux, the package you need to install is -- smartmontools --. Detailed information on how to use smartmontools and analyze its output are available on following pages: http://blog.shadypixel.com/monitoring-hard-drive-health-on-linux-with-smartmontools/ http://www.linuxjournal.com/article/6983 I wanted to give a better explanation, but I can't format the text very well. I apologize for that. However, I can tell you how I used it. I had two hard drives in my system stacked one above other. Twice, the disk on the top failed. So, I used command: sudo smartctl -A /dev/sda From the output, I realized that the upper disks were overheating due to bad air cooling. Apparently, hot air from the lower drive was heating the upper drive. So I reduced the number of drives to one and also added an extra 120mm cooling fan. Smartmontool shows many such parameters - along with their thresholds. If a parameter drops below its threshold, it indicates bad health. Some parameters indicate impending disaster if they fall below their threshold. Others indicate gradual degradation due to poor environment. Anyway, its is useful for assessing and predicting failures. I hope this becomes useful to you. Please let us know about your experiments with it. Regards, Gokul Das --~--~-~--~~~---~--~~ Freedom is the only law. Freedom Unplugged http://www.ilug-tvm.org You received this message because you are subscribed to the Google Groups ilug-tvm group. To post to this group, send email to ilug-tvm@googlegroups.com To unsubscribe from this group, send email to ilug-tvm-unsubscr...@googlegroups.com For details visit the website: www.ilug-tvm.org or the google group page: http://groups.google.com/group/ilug-tvm?hl=en -~--~~~~--~~--~--~---
[fsug-tvm] Re: filesystem got corrupted after filesystem check.........
Hi. I am the subject under consideration.I had crashed my jaunty The power failure must have messed pretty hard with the data and possibly the disk hardware as well. @gokul as for now am not having any problem with the hardware...Am now up and running with 60GB as ext4 file system partitions and a 20GB free space..So i dont have a problem with hardware(hopefuly!!)..(and i had aups but it ws not charged ;) ) On 8/30/09, Visakh gokulda...@gmail.com wrote: Hi, On Aug 28, 2:46 pm, Rajeev J Sebastian rajeev.sebast...@gmail.com wrote: Doesnt Ubuntu use a journalling filesystem ? You are right. Most of the Linux file systems are journaling FSs. That includes ext3, ext4 and XFS. However, ext2 is not such a one. Journaling FSs should be immune to this kind of error. Besides, folders like /etc are unlikely to undergo much change during normal operation - they are read a lot, but not written to as much. So, this is not exactly a file system software error. The power failure must have messed pretty hard with the data and possibly the disk hardware as well. And as for the kernel panic message, I am not really sure what it means. However, with so many critical folders corrupted, it may not be worth tracking down the error. Reinstall is the best option. And yes, having a UPS is a good option. Infact until now, I thought it was the only option users took. Regards, Gokul Das -- Srihari K --~--~-~--~~~---~--~~ Freedom is the only law. Freedom Unplugged http://www.ilug-tvm.org You received this message because you are subscribed to the Google Groups ilug-tvm group. To post to this group, send email to ilug-tvm@googlegroups.com To unsubscribe from this group, send email to ilug-tvm-unsubscr...@googlegroups.com For details visit the website: www.ilug-tvm.org or the google group page: http://groups.google.com/group/ilug-tvm?hl=en -~--~~~~--~~--~--~---
[fsug-tvm] Re: filesystem got corrupted after filesystem check.........
On Mon, 2009-08-31 at 13:33 -0700, Visakh wrote: Just in case you want to know the health of your Hard drive, you can use SMART (Self-Monitoring, Analysis, and Reporting Technology). In Gnu/Linux, it is made available using smartmontools package. I can give more details if you are interested. I am interested. I think my laptop has started showing problems that may be possibly traced to the hard disk. My X has irrecoverably crashed on a couple of occasions, and I had to reboot. I normally don't shutdown, only suspend the computer. And I normally have several documents and several tabs in Iceweasel open at any moment. So a crash becomes rather irritating. The error message says (from memory) that X is not properly configured. I can't imagine what problem other than a hard disk error can cause such an error. Best -- V. Sasi Kumar Free Software Foundation of India Please visit http://swatantryam.blogspot.com --~--~-~--~~~---~--~~ Freedom is the only law. Freedom Unplugged http://www.ilug-tvm.org You received this message because you are subscribed to the Google Groups ilug-tvm group. To post to this group, send email to ilug-tvm@googlegroups.com To unsubscribe from this group, send email to ilug-tvm-unsubscr...@googlegroups.com For details visit the website: www.ilug-tvm.org or the google group page: http://groups.google.com/group/ilug-tvm?hl=en -~--~~~~--~~--~--~---
[fsug-tvm] Re: filesystem got corrupted after filesystem check.........
Hi, On Aug 28, 2:46 pm, Rajeev J Sebastian rajeev.sebast...@gmail.com wrote: Doesnt Ubuntu use a journalling filesystem ? You are right. Most of the Linux file systems are journaling FSs. That includes ext3, ext4 and XFS. However, ext2 is not such a one. Journaling FSs should be immune to this kind of error. Besides, folders like /etc are unlikely to undergo much change during normal operation - they are read a lot, but not written to as much. So, this is not exactly a file system software error. The power failure must have messed pretty hard with the data and possibly the disk hardware as well. And as for the kernel panic message, I am not really sure what it means. However, with so many critical folders corrupted, it may not be worth tracking down the error. Reinstall is the best option. And yes, having a UPS is a good option. Infact until now, I thought it was the only option users took. Regards, Gokul Das --~--~-~--~~~---~--~~ Freedom is the only law. Freedom Unplugged http://www.ilug-tvm.org You received this message because you are subscribed to the Google Groups ilug-tvm group. To post to this group, send email to ilug-tvm@googlegroups.com To unsubscribe from this group, send email to ilug-tvm-unsubscr...@googlegroups.com For details visit the website: www.ilug-tvm.org or the google group page: http://groups.google.com/group/ilug-tvm?hl=en -~--~~~~--~~--~--~---
[fsug-tvm] Re: filesystem got corrupted after filesystem check.........
@stranger in black. for posting i am stranger in black. 's unfortunate friend.I was up with jaunty and all that mess happend. Now am up in my suse. After googling a bit my conclusion is: i myself confirmed the deletion when fsck asked [y/n] for correcting errors. This is not an error attributed to Jaunty in particular or Linux in general. It can happen to any Operating system if you power down while so much disk activity is going on(i was downloading 2 files and copying 1 while power failure occured) Every good OS should be backed up with a reliable UPS too! Thanks guys for posting, Regards, Srihari K Kasaragod 9809 486 518 harisult...@gmail.com On 8/26/09, stranger in black. gnu...@gmail.com wrote: should I tell him to reinstall ubuntu... 2009/8/26 Santhosh സന്തോഷ് VS everlovingyo...@gmail.com Any one know about the technical details of the message like what happened actually. I think this is to be followed with concern. *Kernel panic - not syncing: Attemptrd to kill init! Dumping ftrace buffer: (ftrace buffer empty)*. -- http://techplex.wordpress.com -- .. Junise Safvan m...@gnuise.co.cc www.gnuise.co.cc www.fsugcalicut.org 9746 283 383 -- Srihari K --~--~-~--~~~---~--~~ Freedom is the only law. Freedom Unplugged http://www.ilug-tvm.org You received this message because you are subscribed to the Google Groups ilug-tvm group. To post to this group, send email to ilug-tvm@googlegroups.com To unsubscribe from this group, send email to ilug-tvm-unsubscr...@googlegroups.com For details visit the website: www.ilug-tvm.org or the google group page: http://groups.google.com/group/ilug-tvm?hl=en -~--~~~~--~~--~--~---
[fsug-tvm] Re: filesystem got corrupted after filesystem check.........
On Fri, Aug 28, 2009 at 10:29 AM, Srihari kharisult...@gmail.com wrote: @stranger in black. for posting i am stranger in black. 's unfortunate friend.I was up with jaunty and all that mess happend. Now am up in my suse. After googling a bit my conclusion is: i myself confirmed the deletion when fsck asked [y/n] for correcting errors. This is not an error attributed to Jaunty in particular or Linux in general. It can happen to any Operating system if you power down while so much disk activity is going on(i was downloading 2 files and copying 1 while power failure occured) Every good OS should be backed up with a reliable UPS too! Doesnt Ubuntu use a journalling filesystem ? Regards Rajeev J Sebastian --~--~-~--~~~---~--~~ Freedom is the only law. Freedom Unplugged http://www.ilug-tvm.org You received this message because you are subscribed to the Google Groups ilug-tvm group. To post to this group, send email to ilug-tvm@googlegroups.com To unsubscribe from this group, send email to ilug-tvm-unsubscr...@googlegroups.com For details visit the website: www.ilug-tvm.org or the google group page: http://groups.google.com/group/ilug-tvm?hl=en -~--~~~~--~~--~--~---
[fsug-tvm] Re: filesystem got corrupted after filesystem check.........
I remember this happens with redhat in early days of linux. Does the problem exist still (power failure ,os loss) -- http://techplex.wordpress.com --~--~-~--~~~---~--~~ Freedom is the only law. Freedom Unplugged http://www.ilug-tvm.org You received this message because you are subscribed to the Google Groups ilug-tvm group. To post to this group, send email to ilug-tvm@googlegroups.com To unsubscribe from this group, send email to ilug-tvm-unsubscr...@googlegroups.com For details visit the website: www.ilug-tvm.org or the google group page: http://groups.google.com/group/ilug-tvm?hl=en -~--~~~~--~~--~--~---
[fsug-tvm] Re: filesystem got corrupted after filesystem check.........
Any updates for this.. On Tue, Aug 25, 2009 at 5:06 PM, stranger in black. gnu...@gmail.comwrote: There is a strange error in my friend's pc.. He was up with jaunty But due to a sudden power failure, the system got crashed After that the system is not booting and an error message is showing * Kernel panic - not syncing: Attemptrd to kill init! Dumping ftrace buffer: (ftrace buffer empty)*. He used a live cd to check the filesystem using fsck command... But after that many folders and files like /etc/ got missed.. how to solve this?. -- .. Junise Safvan m...@gnuise.co.cc www.gnuise.co.cc www.fsugcalicut.org 9746 283 383 -- .. Junise Safvan m...@gnuise.co.cc www.gnuise.co.cc www.fsugcalicut.org 9746 283 383 --~--~-~--~~~---~--~~ Freedom is the only law. Freedom Unplugged http://www.ilug-tvm.org You received this message because you are subscribed to the Google Groups ilug-tvm group. To post to this group, send email to ilug-tvm@googlegroups.com To unsubscribe from this group, send email to ilug-tvm-unsubscr...@googlegroups.com For details visit the website: www.ilug-tvm.org or the google group page: http://groups.google.com/group/ilug-tvm?hl=en -~--~~~~--~~--~--~---
[fsug-tvm] Re: filesystem got corrupted after filesystem check.........
Well Im startled at this. On Tue, Aug 25, 2009 at 11:44 PM, stranger in black. gnu...@gmail.comwrote: Any updates for this.. On Tue, Aug 25, 2009 at 5:06 PM, stranger in black. gnu...@gmail.comwrote: There is a strange error in my friend's pc.. He was up with jaunty But due to a sudden power failure, the system got crashed After that the system is not booting and an error message is showing * Kernel panic - not syncing: Attemptrd to kill init! Dumping ftrace buffer: (ftrace buffer empty)*. He used a live cd to check the filesystem using fsck command... But after that many folders and files like /etc/ got missed.. how to solve this?. -- .. Junise Safvan m...@gnuise.co.cc www.gnuise.co.cc www.fsugcalicut.org 9746 283 383 -- .. Junise Safvan m...@gnuise.co.cc www.gnuise.co.cc www.fsugcalicut.org 9746 283 383 -- Sajjad Anwar http://geohackers.in http://fsugcalicut.org geohackers...@gmail.com +91 9995 19 13 12 --~--~-~--~~~---~--~~ Freedom is the only law. Freedom Unplugged http://www.ilug-tvm.org You received this message because you are subscribed to the Google Groups ilug-tvm group. To post to this group, send email to ilug-tvm@googlegroups.com To unsubscribe from this group, send email to ilug-tvm-unsubscr...@googlegroups.com For details visit the website: www.ilug-tvm.org or the google group page: http://groups.google.com/group/ilug-tvm?hl=en -~--~~~~--~~--~--~---
[fsug-tvm] Re: filesystem got corrupted after filesystem check.........
Any one know about the technical details of the message like what happened actually. I think this is to be followed with concern. *Kernel panic - not syncing: Attemptrd to kill init! Dumping ftrace buffer: (ftrace buffer empty)*. -- http://techplex.wordpress.com --~--~-~--~~~---~--~~ Freedom is the only law. Freedom Unplugged http://www.ilug-tvm.org You received this message because you are subscribed to the Google Groups ilug-tvm group. To post to this group, send email to ilug-tvm@googlegroups.com To unsubscribe from this group, send email to ilug-tvm-unsubscr...@googlegroups.com For details visit the website: www.ilug-tvm.org or the google group page: http://groups.google.com/group/ilug-tvm?hl=en -~--~~~~--~~--~--~---
[fsug-tvm] Re: filesystem got corrupted after filesystem check.........
should I tell him to reinstall ubuntu... 2009/8/26 Santhosh സന്തോഷ് VS everlovingyo...@gmail.com Any one know about the technical details of the message like what happened actually. I think this is to be followed with concern. *Kernel panic - not syncing: Attemptrd to kill init! Dumping ftrace buffer: (ftrace buffer empty)*. -- http://techplex.wordpress.com -- .. Junise Safvan m...@gnuise.co.cc www.gnuise.co.cc www.fsugcalicut.org 9746 283 383 --~--~-~--~~~---~--~~ Freedom is the only law. Freedom Unplugged http://www.ilug-tvm.org You received this message because you are subscribed to the Google Groups ilug-tvm group. To post to this group, send email to ilug-tvm@googlegroups.com To unsubscribe from this group, send email to ilug-tvm-unsubscr...@googlegroups.com For details visit the website: www.ilug-tvm.org or the google group page: http://groups.google.com/group/ilug-tvm?hl=en -~--~~~~--~~--~--~---
