On Thu, 31 May 2012 19:24:14 +0200 (CEST) Sven Hartrumpf <hartrumpf@xxxxxxx> wrote: > To answer my own question (about a RAID-1): > > Wed, 30 May 2012 19:38:15 +0200 (CEST), I wrote: > > Is it safe to mix mdadm versions in the following scenario? > ... > > Now my question is: > > Can I safely use the resulting binary (renamed to mdadm325 to avoid confusion) > > to re-add the device and then continue to use the 3.2.2 package from openSUSE? > > I made a backup and tried the above: it worked perfectly. I like it when people work out the answer themselves :-) The only possible issue is that when 3.2.5 adds a new device it will try to give it a larger "Data Offset". This won't confuse md, but it might confuse you in later life. About the only time you need to ensure you have a consistent version of mdadm is when re-creating an array that died in some way and you want to recover the data off it, but "-assemble --force" doesn't work. NeilBrown
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