From: Stuart D Gathman <stuart@gathman.org>
To: LVM general discussion and development <linux-lvm@redhat.com>
Subject: Re: [linux-lvm] Bypassing LVM Restrictions - RAID6 With Less Than 5 Disks
Date: Sat, 7 May 2022 16:41:12 -0400 (EDT) [thread overview]
Message-ID: <6d72d74a-98cc-b055-d1ba-bcd20201e67@gathman.org> (raw)
In-Reply-To: <87561BC7-DDA5-4BC9-9F98-17118199E96D@icloud.com>
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On Fri, 6 May 2022, Alex Lieflander wrote:
> Thanks. I really don’t want to give up the DM-Integrity management. Less complexity is just a bonus.
What are you trying to get out of RAID6? If redundancy and integrity
are already managed at another layer, then just use RAID0 for striping.
I like to use RAID10 for mirror + striping, but I understand parity disks
give redundancy without halving capacity. Parity means RMW cycles of
largish blocks, whereas straight mirroring (RAID1, RAID10) can write
single sectors without a RMW cycle.
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next prev parent reply other threads:[~2022-05-07 21:21 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-04-27 17:11 [linux-lvm] Bypassing LVM Restrictions - RAID6 With Less Than 5 Disks Alex Lieflander
2022-05-02 0:36 ` John Stoffel
2022-05-02 19:22 ` Alex Lieflander
2022-05-02 21:54 ` John Stoffel
2022-05-07 3:33 ` Alex Lieflander
2022-05-07 20:41 ` Stuart D Gathman [this message]
2022-05-07 23:14 ` Alex Lieflander
2022-05-08 13:25 ` Stuart D Gathman
2022-05-09 0:18 ` John Stoffel
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