Re: low-level formatter for linux

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Markus Kesaromous wrote:


See below, but the bottom line is that your drive is dying, the only question is if you will leave your data on it.

----------------------------------------
From: gene.heskett@xxxxxxxxxxx
To: fedora-list@xxxxxxxxxx
Date: Wed, 5 Aug 2009 00:33:27 -0400
Subject: Re: low-level formatter for linux

On Tuesday 04 August 2009, Markus Kesaromous wrote:
----------------------------------------

Date: Wed, 5 Aug 2009 03:33:25 +0000
From: geleem@xxxxxxxxxxxxx
To: fedora-list@xxxxxxxxxx
Subject: Re: low-level formatter for linux

Markus Kesaromous wrote:
Is there a low-level HD formatter for linux?
linux-google search "low-level+format", will give 97k hits.

mainly, for a truly oem *low-level format* you need an oem format program.
they are available in dos format.

you will get advice to use 'dd' to zero out sectors.

you will find programs to do all sorts of security erasers.


for all practical purposes of clearing up why you need 'llf',

did you now have live-in girl friend and you want to be sure
she does not find your pron? ;)

your boss caught you with it on *his* computer?


for practical purposes, girl friend included, using
'dd if=/dev/random of=/dev/sdn bs=65536'
will removed any thing you need to worry about.


for legal reasons, fbi, irs, boss, etc, log;
http://www.linux-kurser.dk/secure_harddisk_eraser.html
for a type of 'erase' programs available.

there are many more, so you can look thru rest of 97k,
or modify "low-level+formatter" to lessen.

much fun to you. :)

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****
Why I need to do low level formatting?
Disk monitor is reporting 93 uncorrectable sector errors.
If that drive cannot correct them, it is already out of spare sectors and is
using its input power for life support.

But to be sure, please post the output of 'smartctl -a /dev/sdX'
where X is the rest of that devices name, a,b,c,d,e etc.

I'd retire it, before it falls over taking your data with it. Or are you
running amanda? I do. And I don't worry too much, I can do a bare metal
install on a fresh drive, fire up one of amanda's two recovery tools, and have
my 99GB restored in about 3 hours, including the final reboot to put in my
latest kernel.

Is that a good enough reason? :)

PS: If I had something on the disk to hide from prying eyes, I would resort
to a very simple solution: break open the drive (very easyli done), and
place the platters on the fire grill for about 60 minutes. Ask a physics
professor. See what he has to say about it :)


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I don't know enough about amanda. Guess I have to read up on it.
Here is the output:

# smartctl -a /dev/sdb

smartctl version 5.38 [i386-redhat-linux-gnu] Copyright (C) 2002-8 Bruce Allen
Home page is http://smartmontools.sourceforge.net/

=== START OF INFORMATION SECTION ===
Model Family:     Seagate Barracuda 7200.9 family
Device Model:     ST3500641AS
Serial Number:    3PM07SFG
Firmware Version: 3.AAD
User Capacity:    500,107,862,016 bytes
Device is:        In smartctl database [for details use: -P show]
ATA Version is:   7
ATA Standard is:  Exact ATA specification draft version not indicated
Local Time is:    Tue Aug  4 21:42:21 2009 PDT
SMART support is: Available - device has SMART capability.
SMART support is: Enabled


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   108   078   006    Pre-fail  Always       -       157925240
  3 Spin_Up_Time            0x0003   096   096   000    Pre-fail  Always       -       0
  4 Start_Stop_Count        0x0032   100   100   020    Old_age   Always       -       670
  5 Reallocated_Sector_Ct   0x0033   100   100   036    Pre-fail  Always       -       1
  7 Seek_Error_Rate         0x000f   087   060   030    Pre-fail  Always       -       627490383
  9 Power_On_Hours          0x0032   082   082   000    Old_age   Always       -       16386
 10 Spin_Retry_Count        0x0013   100   100   097    Pre-fail  Always       -       0
 12 Power_Cycle_Count       0x0032   100   100   020    Old_age   Always       -       767
187 Reported_Uncorrect      0x0032   001   001   000    Old_age   Always       -       863
189 High_Fly_Writes         0x003a   100   100   000    Old_age   Always       -       0
190 Airflow_Temperature_Cel 0x0022   061   039   045    Old_age   Always   In_the_past 39 (0 2 41 29)
194 Temperature_Celsius     0x0022   039   061   000    Old_age   Always       -       39 (0 14 0 0)
195 Hardware_ECC_Recovered  0x001a   060   045   000    Old_age   Always       -       185506743


197 Current_Pending_Sector  0x0012   093   093   000    Old_age   Always       -       157
198 Offline_Uncorrectable   0x0010   093   093   000    Old_age   Offline      -       157

197-198 mean you have a ton of bad sectors. Either the media is deteriorating or the electronics are going bad.

199 UDMA_CRC_Error_Count    0x003e   200   037   000    Old_age   Always       -       366

And this (199) suggests problems getting data to the drive, or failing electronics in the drive.

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

SMART Error Log Version: 1
ATA Error Count: 1188 (device log contains only the most recent five errors)
    CR = Command Register [HEX]
    FR = Features Register [HEX]
    SC = Sector Count Register [HEX]
    SN = Sector Number Register [HEX]
    CL = Cylinder Low Register [HEX]
    CH = Cylinder High Register [HEX]
    DH = Device/Head Register [HEX]
    DC = Device Command Register [HEX]
    ER = Error register [HEX]
    ST = Status register [HEX]
Powered_Up_Time is measured from power on, and printed as
DDd+hh:mm:SS.sss where DD=days, hh=hours, mm=minutes,
SS=sec, and sss=millisec. It "wraps" after 49.710 days.

Error 1188 occurred at disk power-on lifetime: 9674 hours (403 days + 2 hours)
  When the command that caused the error occurred, the device was active or idle.

Error 1187 occurred at disk power-on lifetime: 9674 hours (403 days + 2 hours)
  When the command that caused the error occurred, the device was active or idle.

Error 1186 occurred at disk power-on lifetime: 9674 hours (403 days + 2 hours)
  When the command that caused the error occurred, the device was active or idle.

Error 1185 occurred at disk power-on lifetime: 9674 hours (403 days + 2 hours)
  When the command that caused the error occurred, the device was active or idle.

Error 1184 occurred at disk power-on lifetime: 9674 hours (403 days + 2 hours)
  When the command that caused the error occurred, the device was active or idle.

SMART Self-test log structure revision number 1
Num  Test_Description    Status                  Remaining  LifeTime(hours)  LBA_of_first_error
# 1  Short offline       Completed: read failure       80%     15374         752823153

I would say this drive is toast. Back it up, run DBAN on it, scrap it.

--
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