From: Roger Binns <rogerb@rogerbinns.com>
To: linux-btrfs@vger.kernel.org
Subject: Re: RAID 0 across SSD and HDD
Date: Wed, 30 Jan 2013 12:18:41 -0800 [thread overview]
Message-ID: <kebv6v$q6t$1@ger.gmane.org> (raw)
In-Reply-To: <CADU+-uCCGhCgUQ3yc+XCpdiU-8gTJeqs2LDxOu5g8HyiFC-7DA@mail.gmail.com>
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On 30/01/13 11:10, Filipe Brandenburger wrote:
> You could try something like "-l=linear" on md-raid or something
> similar on LVM to build a 750GB volume
That would also require wiping the filesystems and starting again(*). One
of the joys of btrfs has been not dealing with LVM. On my workstation I
have two 2GB disks, but on one there is a sizeable Windows partition.
Getting LVM to stripe across the common sized space and then just use the
rest took quite a while to work out, requires running several different
commands and was something I had to write down. There was nothing
intuitive. It was a happy day when I could wipe and replace with btrfs.
Contrast with btrfs where 'btrfs --help' is almost always sufficient and
adding/removing/resizing is trivial (and online).
(*) I realise I could do things like add an external disk, btrfs add that
and then btrfs delete the internals, redo the internal storage, btrfs add
those back and then btrfs delete the external. It would take a long time,
and is a reminder as to why I would prefer to be all btrfs everywhere
rather than also dealing with LVM and similar.
Roger
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next prev parent reply other threads:[~2013-01-30 20:18 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-01-30 9:27 RAID 0 across SSD and HDD Roger Binns
2013-01-30 10:02 ` Hugo Mills
2013-01-30 10:49 ` Roger Binns
2013-01-30 12:01 ` Sander
2013-01-30 20:06 ` Roger Binns
2013-01-30 19:10 ` Filipe Brandenburger
2013-01-30 20:18 ` Roger Binns [this message]
2013-01-31 12:39 ` Piotr Pawłow
2013-01-30 18:51 ` Chris Murphy
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