Re: metadata update

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On Sat, 19 Dec 2009 13:09:03 +0100
Jakob-Tobias Winter <jakob-tobias.winter@xxxxxxxx> wrote:

> Hey there,
> 
> my raidsets are still using 0.91 and I might want to upgrade to the
> newer metadata. - The system is running kernel 2.6.32.1 x86_64 with
> mdadm v3.0.3.

0.91 is only used during a reshape - e.g. adding a device to a RAID5.
Once the reshape completes it will revert to 0.90.

> 
> Are there benefits to upgrading or should I stay with my current
> metadata version?

You cannot upgrade the metadata on an array.  You can only create a new array
with new metadata.
If you create a new array with current mdadm you will get v1.1 metadata.

If what you have works, there is no need to change it.

NeilBrown

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