Messages in this thread |  | | From | Neil Brown <> | Date | Thu, 18 Oct 2001 16:49:00 +1000 (EST) | Subject | Re: [QUESTION] Stopping RAID devices from Magic SysRq? |
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On Thursday October 11, rmack@mackman.net wrote: > I was curious if anyone has previosly considered adding a raid-stop > functionality to the magic sysrq command? I realize that a full raid-stop > would make the partition unavailable for read-only access, which may > require the system to be immediately reset. Is there a mechanism to > remount a raid device read-only if all mounts from it are read-only (i.e., > marking the raid superblock clean, syncing, and then only allowing > read-only access)? > > Thanks, Ryan
This is a nice idea... but awkward. Particularly if md.o is a module, setting the hooks up properly would not be tidy.
What we really need is a general concept of setting all drvies to read-only through the block-dev layer.... maybe in the big blockdev rewrite that is planned for 2.5...
NeilBrown
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