From: Phil Karn <karn@ka9q.net>
To: Zygo Blaxell <ce3g8jdj@umail.furryterror.org>
Cc: Alexandru Dordea <alex@dordea.net>,
Chris Murphy <lists@colorremedies.com>,
Btrfs BTRFS <linux-btrfs@vger.kernel.org>
Subject: Re: Extremely slow device removals
Date: Fri, 1 May 2020 21:48:22 -0700 [thread overview]
Message-ID: <CAMwB8mifO8kbLUHarY-nZRPwmK6YUEFTCY5AE_JVcuH38P8oZg@mail.gmail.com> (raw)
In-Reply-To: <20200502041826.GH10769@hungrycats.org>
Thanks for the additional information. I know it's inherently hard to
recover from some errors when caching is enabled, like an acknowledged
write that can't later be flushed to stable storage. But I had no idea
that some drives do gratuitous stuff like dropping the whole write
cache on a read error. That does seem pretty indefensible. Has anybody
gotten a response from the vendors? Does anybody keep a list of the
drives and firmware versions that do this?
(Resending because the list requires plain text)
--Phil
next prev parent reply other threads:[~2020-05-02 4:48 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-04-28 7:22 Extremely slow device removals Phil Karn
2020-04-30 17:31 ` Phil Karn
2020-04-30 18:13 ` Jean-Denis Girard
2020-05-01 8:05 ` Phil Karn
2020-05-02 3:35 ` Zygo Blaxell
[not found] ` <CAMwB8mjUw+KV8mxg8ynPsv0sj5vSpwG7_khw=oP5n+SnPYzumQ@mail.gmail.com>
2020-05-02 4:31 ` Zygo Blaxell
2020-05-02 4:48 ` Paul Jones
2020-05-02 5:25 ` Phil Karn
2020-05-02 6:04 ` Remi Gauvin
2020-05-02 7:20 ` Zygo Blaxell
2020-05-02 7:27 ` Phil Karn
2020-05-02 7:52 ` Zygo Blaxell
2020-05-02 6:00 ` Zygo Blaxell
2020-05-02 6:23 ` Paul Jones
2020-05-02 7:20 ` Phil Karn
2020-05-02 7:42 ` Zygo Blaxell
2020-05-02 8:22 ` Phil Karn
2020-05-02 8:24 ` Phil Karn
2020-05-02 9:09 ` Zygo Blaxell
2020-05-02 17:48 ` Chris Murphy
2020-05-03 5:26 ` Zygo Blaxell
2020-05-03 5:39 ` Chris Murphy
2020-05-03 6:05 ` Chris Murphy
2020-05-04 2:09 ` Phil Karn
2020-05-02 7:43 ` Jukka Larja
2020-05-02 4:49 ` Phil Karn
2020-04-30 18:40 ` Chris Murphy
2020-04-30 19:59 ` Phil Karn
2020-04-30 20:27 ` Alexandru Dordea
2020-04-30 20:58 ` Phil Karn
2020-05-01 2:47 ` Zygo Blaxell
2020-05-01 4:48 ` Phil Karn
2020-05-01 6:05 ` Alexandru Dordea
2020-05-01 7:29 ` Phil Karn
2020-05-02 4:18 ` Zygo Blaxell
2020-05-02 4:48 ` Phil Karn [this message]
2020-05-02 5:00 ` Phil Karn
2020-05-03 2:28 ` Phil Karn
2020-05-04 7:39 ` Phil Karn
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