From: Nicholas D Steeves <nsteeves@gmail.com>
To: Andrei Borzenkov <arvidjaar@gmail.com>, linux-btrfs@vger.kernel.org
Subject: Re: RAID1 vs RAID10
Date: Fri, 07 Nov 2025 21:10:34 -0500 [thread overview]
Message-ID: <87cy5txoit.fsf@gmail.com> (raw)
In-Reply-To: <CAA91j0Wfg2uZptchB-aeaB44C+=igPMP-mZg6ovidmLs_dW4hg@mail.gmail.com>
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Andrei Borzenkov <arvidjaar@gmail.com> writes:
> On Mon, Oct 20, 2025 at 3:23 PM Ulli Horlacher
> <framstag@rus.uni-stuttgart.de> wrote:
>>
>>
>> I have just discovered, that RAID1 is possible with more than 2 devices:
>>
>> https://btrfs.readthedocs.io/en/latest/mkfs.btrfs.html#profiles
>>
>> What is the difference to RAID10?
>>
>
> In RAID1 each chunk (copy) is located on a single disk. In RAID10 each
> chunk (copy) is striped across multiple disks.
>
> https://lore.kernel.org/linux-btrfs/87v8qokryt.fsf@vps.thesusis.net/T/
Does the RAID10 profile still have equivalent read-speed to RAID1
profile on recent (>=6.12) kernels? Last I looked into it both were
still limited to the speed of a single-device.
Regards,
Nicholas
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next prev parent reply other threads:[~2025-11-08 2:10 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-10-20 12:21 RAID1 vs RAID10 Ulli Horlacher
2025-10-20 12:28 ` Johannes Thumshirn
2025-10-20 13:05 ` Andrei Borzenkov
2025-11-08 2:10 ` Nicholas D Steeves [this message]
2025-11-11 18:14 ` Andrei Borzenkov
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