From: Jack <ostroffjh@users.sourceforge.net>
To: gentoo-user@lists.gentoo.org
Subject: Re: [gentoo-user] which linux RAID setup to choose?
Date: Sun, 3 May 2020 10:27:54 -0400 [thread overview]
Message-ID: <2251dac1-92cd-7c3b-97ea-6a061fe01eb0@users.sourceforge.net> (raw)
In-Reply-To: <dri0tBrXDazCGtc_Eu0IwV0R1chgd2giA9ZqGEs8LOJa3vAwAreuXaIR2MeyOgAfXi51yqLcR5NpxDSFY5ss1igKxRAM50hSu7mXY0Y-I78=@protonmail.com>
On 5/3/20 1:44 AM, Caveman Al Toraboran wrote:
> [snip]...
> so, we get the following combinations of
> disk failures that, if happen, we won't
> lose any data:
>
> RAID0
> ------^------
> RAID1 RAID1
> --^-- --^--
> F . . . < cases with
> . F . . < single disk
> . . F . < failures
> . . . F <
>
> F . . F < cases with
> . F F . < two disk
> . F . F < failures
> F . F . <
> . F F . <
>
> this gives us 4+5=9 possible disk failure
> scenarious where we can survive it without
> any data loss.
Minor point - you have one duplicate line there ". f f ." which is the
second and last line of the second group. No effect on anything else in
the discussion.
Trying to help thinking about odd numbers of disks, if you are still
allowing only one disk to fail, then you can think about mirroring half
disks, so each disk has half of it mirrored to a different disk, instead
of drives always being mirrored in pairs.
next prev parent reply other threads:[~2020-05-03 14:28 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-03 5:44 [gentoo-user] which linux RAID setup to choose? Caveman Al Toraboran
2020-05-03 7:53 ` hitachi303
2020-05-03 9:23 ` Wols Lists
2020-05-03 17:55 ` Caveman Al Toraboran
2020-05-03 18:04 ` Dale
2020-05-03 18:29 ` Mark Knecht
2020-05-03 20:16 ` Rich Freeman
2020-05-03 22:52 ` Mark Knecht
2020-05-03 23:23 ` Rich Freeman
2020-05-03 21:22 ` antlists
2020-05-03 9:14 ` Wols Lists
2020-05-03 9:21 ` Caveman Al Toraboran
2020-05-03 14:27 ` Jack [this message]
2020-05-03 21:46 ` Caveman Al Toraboran
2020-05-03 22:50 ` hitachi303
2020-05-04 0:29 ` Caveman Al Toraboran
2020-05-04 7:50 ` hitachi303
2020-05-04 0:46 ` Rich Freeman
2020-05-04 7:50 ` hitachi303
2020-05-04 8:18 ` William Kenworthy
2020-05-03 23:19 ` antlists
2020-05-04 1:33 ` Caveman Al Toraboran
2020-05-03 20:07 ` Rich Freeman
2020-05-03 21:32 ` antlists
2020-05-03 22:34 ` Rich Freeman
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