Re: More RAID weirdness: external RAID over network
Reco (12023-03-17):
> - DRBD
That looks interesting, with “meta-disk device”.
> - MDADM + iSCSI
Maybe possible, but not the way you suggest, see below.
> - zpool attach/detach
I do not think that is an option. Can you explain how you think it can
work?
> mdadm --create /dev/md0 --level=mirror --force --raid-devices=1 \
> --metadata=1.0 /dev/local_dev missing
>
> --metadata=1.0 is highly important here, as it's one of the few mdadm
> metadata formats that keeps said metadata at the end of the device.
Well, I am sorry to report that you did not read my message carefully
enough: keeping the metadata at the end of the device is no more an
option than keeping it at the beginning or in the middle: there is
already data everywhere on the device.
Also, the mdadm command you just gave is pretty explicit that it will
wipe the local device.
Thanks for pointing DRBD.
--
Nicolas George
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