Hi Ted, Thank you for replying, again. On Wed, Feb 15, 2017 at 7:44 AM, Theodore Ts'o <tytso@xxxxxxx> wrote: > What are you trying to _do_ by, at the high level? > > It should do what you want, but at this point I'm wondering _why_ you > want to do it, and whether or not it is something you _should_ be > doing. I probably have an odd usecase. I am trying to evaluate whether a new storage stack (i.e., a virtual disk) is good enough for running an application service; the service can frequently encounter crash reboots, and the storage stack should be reliable enough. After testing the service out on the new stack for a while with induced crash-reboots, I began to suspect corruption in the stack, probably caused during crashes. I was hoping I could catch the corruption early-on, and make the testcase more repeatable, if I used "fsck -f" during the testing. The other ideas I tried out to detect corruption (like adding data checksums within the service) were funnily even harder to get right. Thanks, Thanu