Hard Disk has bad block.

Hi Experts,
I have seen the bad block error entry in event viewer on Server.
Server configuration as follows...
Windows server 2008 R2.
ECC 6.0
IBM DB2 9.7
Its a development system.
We have faced same issue on same server 4 months ago, that time I have recovered that bad sector via CHKDSK /f /r command and then after that recover the database, so after that there is no any error entry in event viewer about bad block and etc.
But today again same error occurs, please suggest me how should I proceed now?
Regards,
Sahani.

Dear Deepanshu,
Thanks for your suggestions.
1. Sure.
2. Can we restore the database on another server which have different SAP SID and DB SID ?
3. Suppose I have to replace the old hard disk with new one, so what steps i have to do?
I mean firstly I have to install the EHP5 ECC 6.0 same as my previous server versions i.e. patch level, sap SID, Database version and patches, DB SID, and after that restore the database with the help of backup file of previous server. is it so?
Yes we are taking backup on weekly basis for Development server.
Regards.
Sahani.

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{------------ Please click the "White Kudos" Thumbs Up to say THANKS for helping.
Please click the "Accept As Solution" on my post, if my assistance has solved your issue. ------------V
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Hi All,
Thanks for Any help to address the problem.
I have already tried running the chkdsk /f /r which just got stuck at 10% and didn't move from there for about 40 minutes.
I started getting below message in Event viewer :
Log Name:      System
Source:        disk
Date:          1/19/2014 5:25:48 PM
Event ID:      7
Task Category: None
Level:         Error
Keywords:      Classic
User:          N/A
Computer:      PC
Description:
The device, \Device\Harddisk0\DR0, has a bad block.
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
<System>
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    <EventID Qualifiers="49156">7</EventID>
    <Level>2</Level>
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    <Keywords>0x80000000000000</Keywords>
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</System>
<EventData>
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</EventData>
</Event>
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Are you encountering the same startup errors when booting straight from the One Key Recovery button? I assume the startup error is occuring while trying to boot the OS, and not booting the recovery.
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Tap that kudos button if I helped ^^
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Gnosi:
Hard disk falieur does sound pretty bad... what does that mean in practice?
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Hi,
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Remove the upper filter and lower filter values from the Registry
1. Click the Start Button, type "regedit" (without quotation marks) in the Start Search box and then press ENTER.
2. Navigate to the following key:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4D36E965-E325-11CE-BFC1-08002BE10318}
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Please remember to click "Mark as Answer" on the post that helps you, and to click "Unmark as Answer" if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.

My iMac hard disk has crashed twice, needing reformat, but appears to work after reinstall. Is this a hardware problem or normal?

The hard disk in my late 2009 iMac has failed twice in the same way. The symptoms have been:
* First, the system starts to "stutter", freezing up at random intervals for some seconds.
* This goes on for days or weeks, increasing in severity until I verify the hard drive
* The disk check shows the disk is in need of repair, and the repair attempt requires me to boot from install DVD
* When I repair the disk from the tool on the Install DVD, the repair fails and the disk is no longer usable
* Reformat, reinstall and restore from Time Machine and everything works fine again
This happened once in end 2011, and now again recently. Is this something that is normal, or an indication that the hard drive is failing in some subtle way?
If the latter, would it make sense to replace it or will that cost me more than the value of the iMac at this point? As I understand this is not something for the fainthearted to attempt on their own.

Could be that issue with a cable not reporting the thermal
sensor status, as equipped in the original hard disk drive...
•Proprietary Cable can put brakes on upgrading Late 2009 iMacs - OWC blog:
http://blog.macsales.com/2751-proprietary-cable-can-put-the-brakes-on-upgrading- late-09-imacs
•Diagnosing 2009 & 2010 iMac Fan Speed issues after upgrading the Main hard drive:
http://blog.macsales.com/19617-diagnosing-2009-2010-imac-fan-speed-issues-after- upgrading-the-main-hard-drive
Thus the local recommendation to replace the HDD with
one of the same brand & model with internal sensor; &
often with a service if this type, the original cables are
inspected and replaced. Sometimes in the process of
disassembly the originals can be messed up, too.
{iStat pro widget? handy if you can find it now}
But the sensor is inside the hard disk drive.
Your SSD has none. So the computer may
be overheating without feedback to run fans
at a speed matching the demands of CPUs.
If the iMac overheats (or is led to assume so) it will shut off.
A possible work-around is suggested, but may not work.
Matching parts with the model is important.
Hopefully this helps...
Good luck & happy computing!

Hard Disk has bad block.

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