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From: Nix <nix@esperi.org.uk>
To: Stefan Priebe - Profihost AG <s.priebe@profihost.ag>
Cc: Michael Lyle <mlyle@lyle.org>, Coly Li <i@coly.li>,
	"linux-bcache@vger.kernel.org" <linux-bcache@vger.kernel.org>,
	n.fahldieck@profihost.ag
Subject: Re: ont out of 6 bcache devices does not register automatically
Date: Fri, 01 Dec 2017 15:10:32 +0000	[thread overview]
Message-ID: <87a7z21o2f.fsf@esperi.org.uk> (raw)
In-Reply-To: <c2c82969-5fba-cea8-756a-d7489b506e7a@profihost.ag> (Stefan Priebe's message of "Tue, 28 Nov 2017 21:31:26 +0100")

On 28 Nov 2017, Stefan Priebe spake thusly:

> Am 28.11.2017 um 21:05 schrieb Michael Lyle:
[...]
>> Even if I maintained bcache-tools, I couldn't really fix this.  If there
>> is a desire to proceed through ambiguity, the ordering that actions are
>> attempted in-- RAID, filesystems, bcache, DM, etc, becomes important,
>> and can't be solved in any one package.
>
> I dont want to allow to register for ambiguity in general - but in case
> there is ambiguity with an FS (xfs,btrfs, ...). I can't see a way where
> this could be a problem. Even considering other block drivers like md or dm.

bcache can be stacked underneath filesystems via loopback mounts. Heck
you can have a RAID->bcache->LVM->cryptfs->loopback->RAID->bcache stack
if you like (I've done that, though the loopback layers and below were
only for testing.)

-- 
NULL && (void)

  reply	other threads:[~2017-12-01 15:11 UTC|newest]

Thread overview: 36+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-11-22 11:23 ont out of 6 bcache devices does not register automatically Stefan Priebe - Profihost AG
2017-11-22 12:16 ` Coly Li
2017-11-22 12:26   ` Stefan Priebe - Profihost AG
2017-11-22 12:57     ` Coly Li
2017-11-22 13:14       ` Stefan Priebe - Profihost AG
2017-11-22 13:29         ` Coly Li
2017-11-22 14:16           ` Stefan Priebe - Profihost AG
2017-11-22 15:51             ` Coly Li
2017-11-22 19:07               ` Stefan Priebe - Profihost AG
2017-11-22 17:51         ` Michael Lyle
2017-11-22 19:06           ` Stefan Priebe - Profihost AG
2017-11-22 19:42             ` Stefan Priebe - Profihost AG
2017-11-22 20:22               ` Michael Lyle
2017-11-22 20:36                 ` Stefan Priebe - Profihost AG
2017-11-22 20:44                   ` Michael Lyle
2017-11-22 20:56                     ` Stefan Priebe - Profihost AG
2017-11-22 21:03                       ` Michael Lyle
2017-11-22 21:07                         ` Stefan Priebe - Profihost AG
2017-11-22 21:10                           ` Michael Lyle
2017-11-22 21:13                             ` Stefan Priebe - Profihost AG
2017-11-23  7:10                               ` Stefan Priebe - Profihost AG
2017-11-28  9:36                                 ` Stefan Priebe - Profihost AG
     [not found]                                   ` <CAJ+L6qc79S1t10WfeycRFLesuqbZNfUXrN7qo6fVuwbHk=n8xw@mail.gmail.com>
2017-11-28 19:32                                     ` Stefan Priebe - Profihost AG
2017-11-28 19:51                                       ` Michael Lyle
2017-11-28 19:59                                         ` Stefan Priebe - Profihost AG
2017-11-28 20:05                                           ` Michael Lyle
2017-11-28 20:31                                             ` Stefan Priebe - Profihost AG
2017-12-01 15:10                                               ` Nix [this message]
2017-12-10 19:34                                                 ` Stefan Priebe - Profihost AG
2017-12-10 19:36                                                   ` Michael Lyle
2017-12-10 19:39                                                     ` Stefan Priebe - Profihost AG
2017-12-12 15:38                                                     ` Nix
2017-11-22 21:10                         ` Stefan Priebe - Profihost AG
2017-11-22 21:13                           ` Michael Lyle
2017-11-23 11:43               ` Kai Krakow
2017-11-23 12:03                 ` Stefan Priebe - Profihost AG

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