On Sun, Oct 30, 2011 at 1:14 AM, Hugo Mills <h...@carfax.org.uk> wrote:
> On Sun, Oct 30, 2011 at 01:06:49AM +1030, Jordan Windsor wrote:
>> On Sun, Oct 30, 2011 at 1:04 AM, Hugo Mills <h...@carfax.org.uk> wrote:
>> > On Sun, Oct 30, 2011 at 12:55:33AM +1030, Jordan Windsor wrote:
>> >> On Sun, Oct 30, 2011 at 12:43 AM, Hugo Mills <h...@carfax.org.uk> wrote:
>> >> > On Sun, Oct 30, 2011 at 12:28:39AM +1030, Jordan Windsor wrote:
>> >> >> Hello,
>> >> >> I was wondering is it possible to find the RAID level currently in use
>> >> >> by a btrfs volume, also can I change the data & metadata (or either)
>> >> >> RAID levels after creation.
>> >> >
>> >> > To see the RAID levels, use
>> >> >
>> >> > btrfs fi df /path/to/filesystem
>> >> >
>> >> > To change RAID levels, you will need Ilya Dryomov's restriper
>> >> > patches, which were posted to this list back in August.
>> >>
>> >> Thanks, so If it mentions "DUP" on the metadata & system line I'm using
>> >> RAID1?
>> >
>> > No, DUP is two copies of the data (or metadata), but kept on the
>> > same block device.
>> >
>> If the word RAID isn't mentioned, I'm in single mode for both metadata &
>> data?
>
> If there's nothing at all, then it's "single". If it says DUP, then
> you have two redundant copies, but they could both be on the same
> block device, so it'll protect you from a bad block or out-of-band
> data corruption, but not from the loss of the whole disk.
>
> Hugo.
>
> --
> === Hugo Mills: hugo@... carfax.org.uk | darksatanic.net | lug.org.uk ===
> PGP key: 515C238D from wwwkeys.eu.pgp.net or http://www.carfax.org.uk
> --- Ceci est un travail pour l'Australien. ---
>
Just curious, If I go with RAID1 will I still get the speed boost that
comes along with RAID0? (Read from both drives)
Thanks.
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