chache multiple devices with one cache

chache multiple devices with one cache

[LuVar]

Hi,
I have question about using bcache in "standard" instalation of linux. I have some partitions (/boot, /home, /usr/portage, /var/lib/boinc,...) and I have one ssd hdd. I vant to use it as cache for root partition and for example for /home partition. Is it possible without partitioning ssd drive? I want from bcache to compute which of my partitions need more space for caching.

Simply I want to tel bcache that /home and / partitions should be chaced on /dev/sdg device. Is it possible with current version of bcache?

PS: I hope, reformatting my partitions will be easy as I am on lvm (on top of raid5 :-/

Have a nice day,
LuVar

Re: chache multiple devices with one cache

[Kent Overstreet]

Yes, you can attach multiple backing devices to a cache (up to 256, currently).

On Sat, May 21, 2011 at 4:09 AM, LuVar <luvar-2S8i3W4CjuIzjkFyG6Beag@public.gmane.org> wrote:
> Hi,
> I have question about using bcache in "standard" instalation of linux. I have some partitions (/boot, /home, /usr/portage, /var/lib/boinc,...) and I have one ssd hdd. I vant to use it as cache for root partition and for example for /home partition. Is it possible without partitioning ssd drive? I want from bcache to compute which of my partitions need more space for caching.
>
> Simply I want to tel bcache that /home and / partitions should be chaced on /dev/sdg device. Is it possible with current version of bcache?
>
> PS: I hope, reformatting my partitions will be easy as I am on lvm (on top of raid5 :-/
>
> Have a nice day,
> LuVar
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