From: Gabriel de Perthuis <g2p.code-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
To: Vasiliy Tolstov <v.tolstov-+9FY0jupvH6HXe+LvDLADg@public.gmane.org>
Cc: linux-bcache-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: Re: bcache not works?
Date: Wed, 16 Oct 2013 23:07:10 +0200 [thread overview]
Message-ID: <525EFFFE.7060901@gmail.com> (raw)
In-Reply-To: <CACaajQueWka6dA3g-Uv7Asz9KhgX9nJ_sjd8bNRo2Y2iU-73jA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
Le 16/10/2013 06:22, Vasiliy Tolstov a écrit :
> I have this setup:
> /dev/md127 - raid1 with one sata 3Tb drive
> /dev/sdb SSD disk with 240 Gb
>
> I'm succeseful create bcache0 device and format it to ext4.
>
> /dev/bcache0 /var/lib/libvirt/images ext4
> rw,relatime,journal_checksum,journal_async_commit,errors=remount-ro,min_batch_time=15000,max_batch_time=60000,data=ordered
> 0 0
>
> After that i'm install kvm virtual machine and tries to create some
> activity via iozone fio and other. But stats says nothing.
>
> What i miss?
Maybe the cache isn't attached to the backing device?
If you initialise both with the same make-bcache call they are
immediately attached, otherwise you need to connect them:
http://evilpiepirate.org/git/linux-bcache.git/tree/Documentation/bcache.txt?h=bcache-dev#n80
next prev parent reply other threads:[~2013-10-16 21:07 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-10-16 4:22 bcache not works? Vasiliy Tolstov
[not found] ` <CACaajQueWka6dA3g-Uv7Asz9KhgX9nJ_sjd8bNRo2Y2iU-73jA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2013-10-16 20:40 ` Vasiliy Tolstov
2013-10-16 21:07 ` Gabriel de Perthuis [this message]
[not found] ` <525EFFFE.7060901-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2013-10-17 3:24 ` Vasiliy Tolstov
[not found] ` <CACaajQvOkLmyrCyyr+8BA5sU+Z1mJ1o9Z4ss5+M=PNcng8sdxw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2013-10-17 3:29 ` Vasiliy Tolstov
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