[TAG] TAG Digest, Vol 41, Issue 18

[Merrill]

I told another Cub fan yesterday that the next time Z pitches he'll
probably give up 6 runs in 2 innings.  He did just about that. 



Douglas D. Merrill, M.P.A.
Lake County IT Dept. - DBA
Voice:  (847) 377-2186 
Fax:    (847) 360-6869 
email: dmerrill at co.lake.il.us


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Today's Topics:

   1. bad sector removing (M.Rashid Shahzad)
   2. Re: bad sector removing (Kapil Hari Paranjape)


----------------------------------------------------------------------

Message: 1
Date: Thu, 18 Sep 2008 20:25:27 -0700 (PDT)
From: "M.Rashid Shahzad" <donsmooker at yahoo.com>
To: TAG <tag at lists.linuxgazette.net>
Subject: [TAG] bad sector removing
To: tag at lists.linuxgazette.net
Message-ID: <66997.55942.qm at web59709.mail.ac4.yahoo.com>
Content-Type: text/plain; charset="us-ascii"

Please Reply the bad sector removing method and bad sector removing the
software name or this software use for the procedure.All method reply
the easy words. Please help this working.Thanks.Bye


      
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Message: 2
Date: Fri, 19 Sep 2008 09:12:20 +0530
From: Kapil Hari Paranjape <kapil at imsc.res.in>
To: TAG <tag at lists.linuxgazette.net>
Subject: Re: [TAG] bad sector removing
To: tag at lists.linuxgazette.net
Message-ID: <20080919034219.GA3691 at imsc.res.in>
Content-Type: text/plain; charset=us-ascii

Hello,

On Thu, 18 Sep 2008, M.Rashid Shahzad wrote:
> Please Reply the bad sector removing method and bad sector removing 
> the software name or this software use for the procedure.All method 
> reply the easy words. Please help this working.Thanks.Bye

I think the program "badblocks" will check a disk for bad blocks (by
running read and *more dangerously* write tests). This program produces
the list of bad blocks in a manner which can be used by file system
tools to mark blocks as unusable.

If you are using the disk, then it is best to run this in read-only
mode. For example, for an ext2/3 file system on /dev/sda5 you would use
e2fsck -c /dev/sda5 This command will call "badblocks" in read-only mode
to perform the disk scan. This operation can take a long time for large
disks.
Note that any file data that has already been written to these blocks
before performing the check might not be recoverable.

If you are not using the disk and are planning to check for badblocks
before using it then it is best to again use file system tools to check
the bad blocks and create the file system in one command. For example,
to create an ext2/3 file system on /dev/sda5 you would use  mke2fs -c -c
/dev/sda5 Specifying -c twice will make the badblocks program check for
write access as well and this will be take twice the time of the
read-only check (typically).

There is no way to "remove" bad sectors entirely --- one can only mark
them as bad so that the operating system will ignore these sectors while
using the disk.

Regards,

Kapil.
--



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End of TAG Digest, Vol 41, Issue 18
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