Hard drive test for bad sectors shows 7 consistently.

I have a number of backup drives for my Dell T410 server. When I test them with my Logicube drive testoe, they all show 7 bad sectors.  Could this be due to the firmware that Dell puts on the drives?
WDravingIT ConsultantAsked:
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Scott CSenior EngineerCommented:
What about if you test them with Dell utilities?

I'd say it's some kind of incompatibility as I doubt many drives would all show 7 bad sectors.
andyalderSaggar maker's framemakerCommented:
What do you mean by backup drives? Are they just spare drives for the server or USB ones you backup onto?
noxchoGlobal Support CoordinatorCommented:
The drives must be tested as standalone (in no RAID). And they must be tested with the vendor made tool. Each of hard drive vendors has their own test utilities. Seatools from Seagate or WDDiag from WD. Find out what tool your drive vendor offers.
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RaminTechnical AdvisorCommented:
A Bad Sector can be copied from your hard disk with physical bad sector on other hard disks (only bad sector sign but not physically).

if you mirror (sector to sector copy) a hard disk with physical bad sector to a normal hard disk (without any physical bad sector) you will have bad sector sign on second hard drive too.  

Formatting the second disk will not remove the bad sector signs from the second hard disk because Format command doesn't check Bad Sector areas.   zero fill can fix it, only if it is necessary to be fixed.
you find the drive model in device manager
i use the UBCD for testing disks :
Hardware diagnostic CD    UBCD
go to the download page, scroll down to the mirror section, and  click on a mirror to start the download
Download the UBCD and make the cd   <<==on a WORKING PC, and boot the problem PC from it
Here 2 links, one to the general site, and a direct link to the download

since the downloaded file is an ISO file, eg ubcd527.iso - so you need to use an ISO burning tool
if you don't have that software, install cdburnerXP : http://cdburnerxp.se/

If you want also the Ram tested - run memtest86+ at least 1 full pass,  - you should have NO errors!
direct download :  http://www.memtest.org/
For disk Diagnostics run the disk diag for your disk brand (eg seagate diag for seagate drive)  from the HDD section -  long or advanced diag !  (runs at least for30 minutes)


**  you can make a bootable cd - or bootable usb stick
*** note *** for SSD drives  use the tool from the manufacturer, like intel 's toolbox :

for completeness -here's how i handle disk problems : http://www.experts-exchange.com/Storage/Hard_Drives/A_3000-The-bad-hard-disk-problem.html

==>>****in order to be able to  boot from CD or usb - you may have to disable secure boot in the bios
WDravingIT ConsultantAuthor Commented:
The drives are backup drives for the two RAID arrays. One is  a two drive RAID 1 for the OS and the second is a RAID 5 3 drive array for the data.  Both RAID arrays use Dell HE103SJ SATA drives. I have 4 spare drives which all show 7 bad sectors when I check them with my Logicube tester.
andyalderSaggar maker's framemakerCommented:
I still don't understand. If they are backup drives how are they connected to the server? Are they marked Dell PN G7X69?

You're not plugging and unplugging them from the server's hot-plug bays are you?
WDravingIT ConsultantAuthor Commented:
No, They are offline waiting for a problem to occur.  They are not connected to any device. They're strictly cold spares. That's why I was surprised when all of the showed 7 bad sectors.  I haven't tested one of the online drives but I may do that.
andyalderSaggar maker's framemakerCommented:
Dell do sign their drives but it's just by writing a specific SCSI code page. They also do a few tweaks (there'a a 12Gb SAS that they've clocked down to say it's 6Gb to stop OMSA having a fit, but that was because they couldn't get 6Gb ones any more).

It's most likely that either you really do have 7 bad sectors per drive or possible that your software isn't reading the SMART info correctly for the firmware version. If they were putting 7 bad sectors on each one then it would have been  found out by now as people use them in PCs as well but there's no reference to it on Google except for this thread,

Edit... possible that your software isn't reading the SMART info correctly but you're using Logicube hardware, not software. It would be interesting to see whether PC software showed the same results.
WDravingIT ConsultantAuthor Commented:
Since the drives are sold but made by Samsung whose hard drive company is now owned by Seagate, I'm not sure what software to use to check them. Any ideas?
WDravingIT ConsultantAuthor Commented:
That was meant to say sold as Dell parts but made by Samsung.
noxchoGlobal Support CoordinatorCommented:

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WDravingIT ConsultantAuthor Commented:
That helped.
andyalderSaggar maker's framemakerCommented:
Did Samsung diags show 7 bad sectors on each drive?
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