I am now running a RAID 1 system which are formed with two Seagate Barracuda ST31000528AS HDDs. I use an onboard RAID controller and AMD RAIDXpert for monitoring.

Recently, I found that one of the drive was very noisy (and some errors were prompted in RAIDXpert) and believed that it will malfunction very soon. So I replaced that drive with a new one and rebuilt the RAID again. The rebuild is "successful", but a few warnings were prompted in the RAIDXpert:

25 AMD Chipset SATA Controller - Controller 1 Information 2013/12/12 19:01:54 Rebuild on logical drive "RAID 1 LD 1" 70%
26 AMD Chipset SATA Controller - Controller 1 Information 2013/12/12 18:59:02 BSL update on disk (Port Number 4,Target ID 1) at LBA 0x04fa3c37f
27 AMD Chipset SATA Controller - Controller 1 Information 2013/12/12 18:58:59 BSL accessed on disk (Port Number 1,Target ID 1) at LBA 0x04fa3c37f
28 AMD Chipset SATA Controller - Controller 1 Information 2013/12/12 18:58:59 BSL update on disk (Port Number 1,Target ID 1) at LBA 0x04fa3c37f
29 AMD Chipset SATA Controller - Controller 1 Warning 2013/12/12 18:58:59 Task 20 disk error on disk (Port Number 1,Target ID 1) at LBA 0x04fa3c37f (Length 0x80) with status 51; Error register: 40
30 AMD Chipset SATA Controller - Controller 1 Information 2013/12/12 18:44:08 Rebuild on logical drive "RAID 1 LD 1" 60%

It seems to me that there is a bad sector in the Port Number 1 disk, ie. the old "Master" disk.

I am now having two questions:
1. Does it mean that some of the files are already damaged?
2. If so, could you suggest some ways to recover the files (or the bad sector)?

Thank you very much. And please forgive my bad English because English is not my mother tongue.

If only a bad sector is a problem you can recover 100% data Try Victoria to diagnose the drive properly... file is attached. need any help I am here.

Muhammad Ali
http://www.ditplanet.com
contact@ditplanet.com

Victoria is only to diagnose hard drive properly I don't tell him to repair bad sector.

If RAID 1 system got Bad sector even not in a data location they stop working properly. I have almost 10 years of RAID data recovery experience.

And latest Victoria has option to repair bad sector option called restore. it can not erase sector it will regenerate sector without data lose or corruption of the data.

Good Luck

@AlexW, I have no RAID experience, but ISTM that if the original noisy drive is still functional, and if you can read sector 0x04fa3c37f, then you could copy this sector to the "Master" drive using a disc editor. Hopefully the bad sector will be reallocated. Then rebuild the RAID with your replacement drive.

Alternatively, couldn't you just clone the noisy drive to your replacement drive, and then install it in the RAID, or does the RAID controller's metadata recognise the clone as non-original?

BTW, I would check the SMART report for each drive. Look for reallocated, pending, or uncorrectable sectors.

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