On Fri, 01 Feb 2013 12:50:45 -0500 Phil Turmel <philip@xxxxxxxxxx> wrote: > On 02/01/2013 12:17 PM, Dominique wrote: > > Hi list, > > > > I was wondering what would be the best way to convert a 6 hdd raid 5 to > > raid 6. Ideally without having to reformat everything and lose all the > > data in the process. I have backups of the data but I don't look forward > > reinstalling everything on that server. ... > 3) Convert array to raid6 w/ "mdadm --grow --level=raid6" --layout=preserve will make it an order of magnitude faster. Read "man mdadm" for more details. (And "man md" to learn about things in general.) That's all while still assuming you *can* or want to add a 7th drive. If not, things become more complex. -- With respect, Roman
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