On Tue, Nov 03, 2009 at 09:44:50AM -0500, Jesse Wheeler wrote:
> Interesting. I just got done reading that section in the manpage; if
> anything, I didn't know mdadm would process an array in that fashion.
> However, I don't see this behavior listed in my /proc/mdstat output.
> If it's there, I'm missing it:
auto-read-only goes away with the first write request. If you have a
file system on the RAID device, just mounting it R/W causes the superblock
to be updated and that in turn ends auto-read-only mode. Unless you have
an unused RAID device, it's not that easy to catch the moment when the
array is still in auto-read-only mode.
Gabor
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MTA SZTAKI Computer and Automation Research Institute
Hungarian Academy of Sciences
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