Re: mismatch_cnt again

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Neil Brown wrote:
On Thursday November 12, greg@xxxxxxxxxxxx wrote:
Neil/Martin what do you think?

I think that if you found out which blocks were different and mapped
that back through the filesystem, you would find that those blocks are
not a part of any file, or possibly are part of a file that is
currently being written.

Well, I have a bunch on my /boot partition, so here's my test plan. Please comment on the safety of this plan as you see it.

- remount the raid-1 array read-only. It shouldn't be changing!
- mount 1st component r/o  and do md5sum on every file[1]
- for each other component, mount r/o and check every file

Investigate any mismatches found in real data.

The alternative involves taking the system down and doing this from a Live-CD. Since most of my servers and desktops (including this one) run in VMs on the server in question, this is safer but not likely to happen soon.

--
Bill Davidsen <davidsen@xxxxxxx>
 "We can't solve today's problems by using the same thinking we
  used in creating them." - Einstein

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