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From: Gionatan Danti <g.danti@assyoma.it>
To: Zdenek Kabelac <zkabelac@redhat.com>,
	LVM general discussion and development <linux-lvm@redhat.com>
Subject: Re: [linux-lvm] bcache as a new i/o layer?
Date: Fri, 30 Nov 2018 11:03:26 +0100	[thread overview]
Message-ID: <fcca00bc-8ab3-e9d6-494b-e1c3d82f95ec@assyoma.it> (raw)
In-Reply-To: <4dcb6809-f993-4ab1-ab23-0f424e765cd3@redhat.com>

On 30/11/2018 10:52, Zdenek Kabelac wrote:
> Hi
> 
> 
> The name of i/o layer bcache is only internal to lvm2 code for caching
> reads form disks during disk processing - the name comes from usage
> of� bTree and caching - thus the name bcache.
> 
> It's not a dm target - so nothing you could use for LVs.
> And has nothing in common with exiting� bcache kernel block device.
> 
> The only purpose is to slightly accelerate device scanning and probing - 
> and helps mostly in cases your system has tons a devices that needs to 
> be scanned,
> since this bcache is also using async disk reads for its filling....
> 

Hi Zdenek, thanks for the information.
I can imagine bcache being instrumental to the deprecation of lvmetad, 
right?

Thanks.

-- 
Danti Gionatan
Supporto Tecnico
Assyoma S.r.l. - www.assyoma.it
email: g.danti@assyoma.it - info@assyoma.it
GPG public key ID: FF5F32A8

  reply	other threads:[~2018-11-30 10:03 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-11-30  9:35 [linux-lvm] bcache as a new i/o layer? Gionatan Danti
2018-11-30  9:52 ` Zdenek Kabelac
2018-11-30 10:03   ` Gionatan Danti [this message]
2018-11-30 10:23     ` Zdenek Kabelac

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