I seem to remember an offset option when mounting disk images. The volume I have created is called “raid”. I did not think Windows could handle non byte sector devices. If bit sees the array just fine you should rearrange the array so its a complete 4. I got the disk size in megabytes from windows disk manager, and calculated the sector count from that, but since the disk size is rounded to megabytes and the sector size is B, the sector count can be off by about one megabyte, which is sectors. Are you new to LinuxQuestions. You are using sda as the example of a failed drive.

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Thank you very much for this tutorial However, as the popularity of an integrated RAID controller board, this raaid can be used in our daily life. Thanks for the article – I’ve used it around 10 times without issue – I should probably have memorised the steps by now! This may be tricky because the labels for both disks are probably going to be identical in the Bios display.

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Partition 5 does not end on cylinder boundary. To use the script open a terminal and make a clean directory to work in raidd place the thh dump-pdc- metadata.

It was counter intuitive to “DELETE” the logical drive so you could recreate it warning you data may be lost as wellbut it does work. This book contains many real life examples derived from the author’s experience as a Linux system and network administrator, trainer and consultant.


Does this mean that both drives have failed? I know you’re not writing about backups but I’ll say it anyway: Worked like a charm, thanx!

To debug the am I need the output of the commands I have asked for. I will re-upload the patch with a different patch index number to avoid confusion with the originalwhich includes my 1 line fix, that xmd the 4TB mirror to detect, activate and work as expected. Mitch Towner kermiac wrote on I’d like to be able to see what the latest and greatest version will work with before committing to a new motherboard.

Debian User Forums • View topic – Can hardware RAID be used on AMD SB southbridge?

Fake raid does neither of these, so which disk services a read request is a toss up so the system might read the old data on one disk or the new data on the other disk, and this can flip flop back and forth on a sector by sector basis, causing all sorts of filesystem corruption. This will allow me oinux explore the metadata and see if something is different to what it expects. Disk size reported my dmraid is wrong by bits probably due to truncation Could you post a metadata dump please.

Then generate a new identifier for the new disk: Thank you for noting the need to run grub-install!

does Linux support AMD’s SB raid chipset?

Looking back I think this was the issue Nishihama Kenkowo had with the original patch. It doesn’t take the old mailing-list commands, though; have to subscribe via a web interface. Your best bet is to simply avoid using volumes over 2 TiB. Regarding how to find the failed drive Actually, keeping track of your disks is always a good idea. The 4TB array is still using a sector size of bytes, while the 5TB array used However I do not have a promise raid chip set to be able to test larger arrays in real life but the evidence from Henry and the other thread I found indicate that this is the promise raid drivers behaviour.


I forget what the JMicron utility is or says.

Having a problem logging in? If you can shut down your computer, you can disconnect the SATA cables one by one sb71 see which one still allows the MD array to start.

I’m pretty sure I know what happenned.

Looking through the dmraid code I cannot see where it would add an offset. None, the status of the bug is updated manually. You need to log in to change this bug’s status. Excellent tutorial linjx recovering a failed drive of a cross partition Raid-1 array.

Last modified: March 6, 2020