On 16/10/17 22:16, John Stoffel wrote:
lejeczek> I'm sroogling and reading but before spend whole day doing
lejeczek> that, I was hoping you guys, gals, done conversion from
lejeczek> raid10?
Please post your configuration and explain what you're trying to do in
more detail.
lejeczek> I'm thinking best(natural?) would be to convert to two raid0
lejeczek> LVs, right. Am I right? Would it be optimal, and how do you
lejeczek> do it?
You don't put LVs directly ontop of RAID0, you put them in VGs, which
reside in PVs, which reside on disks or RAIDs, or iSCSI LUNs, etc.
It sounds like you have two filesystems, each in their own LV. You
want to move them off a RAID10 (four disks, in two mirrored PAIRS,
stripped across them is what I assume), because why?
Give more details. You do realize that while you will gain space, you
will lose reliability with RAID0, if one disk fails, all your data is
gone.
John
no other raids but LVM's own.
not much in configuration, unless I misunderstand, question
I'm posing is simple - is it possible to convert/split lvm
raid10 LV into two raid0 LVs? (here one thing comes to mind:
data stays intact?) Or raid10 LV to any other raid?
As I sroogled I saw there is "mirror spitting" but term
raid10 does not appear in that context, or I failed to find it.
But man pages also mention, with regards to raid takeover:
"..
· between striped/raid0 and raid10.
..."
So it sounds like possible(so no other raid levels but these
two), only might be intricate process/procedure, which is
not documented, or again, I failed to find it.
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