From mboxrd@z Thu Jan 1 00:00:00 1970 References: From: Heinz Mauelshagen Message-ID: Date: Fri, 5 Jul 2019 00:45:49 +0200 MIME-Version: 1.0 In-Reply-To: Content-Type: multipart/alternative; boundary="------------F15A7C66C50E94A22C0CC535" Content-Language: en-MW Subject: Re: [linux-lvm] Lvm RAID0 vs lvm striping Reply-To: LVM general discussion and development List-Id: LVM general discussion and development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , List-Id: To: LVM general discussion and development , John Ratliff This is a multi-part message in MIME format. --------------F15A7C66C50E94A22C0CC535 Content-Type: text/plain; charset="utf-8"; format="flowed" Content-Transfer-Encoding: 8bit This is both striping via 2 different, supported device-mapper targets, 'striped' and 'raid' ('striped' is an older, separate target and 'raid0' is supported by the 'raid' target which also supports raid1/raid4/raid5/raid6 and raid10). The algorithm to distribute data on the stripes is the same for both striped and raid0 and they can be converted into each other running 'lvconvert --type striped|raid0 $LV' since raid target version 1.7.0 / lvm2 version 2.02.155. See lvmraid(7) for insight into the RAID support in lvm including the aforementioned and many more conversions from and to RAID and between RAID levels and layouts.. Heinz On 7/2/19 5:53 PM, John Ratliff wrote: > > What is the difference between these two? > > Thanks. > > John Ratliff > > > _______________________________________________ > linux-lvm mailing list > linux-lvm@redhat.com > https://www.redhat.com/mailman/listinfo/linux-lvm > read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/ --------------F15A7C66C50E94A22C0CC535 Content-Type: text/html; charset="utf-8" Content-Transfer-Encoding: 8bit

This is both striping via 2 different, supported device-mapper targets, 'striped' and 'raid'
('striped' is an older, separate target and 'raid0' is supported by the 'raid' target which
also supports raid1/raid4/raid5/raid6 and raid10).

The algorithm to distribute data on the stripes is the same for both striped and raid0
and they can be converted into each other running 'lvconvert --type striped|raid0 $LV'
since raid target version 1.7.0 / lvm2 version 2.02.155.

See lvmraid(7) for insight into the RAID support in lvm including the aforementioned
and many more conversions from and to RAID and between RAID levels and layouts..

Heinz

On 7/2/19 5:53 PM, John Ratliff wrote:

What is the difference between these two?

Thanks.

John Ratliff
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read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/

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