Dne 28.9.2011 21:32, Jojy Varghese napsal(a): > Hi > I am trying to dynamically add error injection to our virtual > disk(LVM) for testing+ debugging purpose. I saw "faulty" personality > module in the kernel and was wondering if there was any documentation > on its usage. I am not looking to set up a RAID but a simple mapped > device. So the basic use case is that I need to be able to dynamically > add/remove error sectors and also be able to have granular error > configuration like read error, read+write error etc. > > thanks in advance > Jojy Do you mean linux-kernel/Documentation/device-mapper/dm-flakey.txt Or just plain dm-error target ? There you could easily remap your device to be build for partial error segments (i.e. replace single linear mapping with a list of error/linear segments) Zdenek -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
