Current state of hot data relocation functionality

Current state of hot data relocation functionality

[Bostjan Skufca]

Hi all!

I was looking into some custom fileserver options and noticed two
facts about ZFS - support for L2ARC (albeit not persistant across
reboots, which is a downer) and OpenSolaris being a dead meat. Then I
found out that some patches were already floating around linux
mailinglists, patches about hot data relocation, but unfortunately
nothing definitive. So I would like to ask here: what is the status of
hot data relocation functionality?

I haven't had a chance to try out btrfs myself, but from what I see it
sure looks promising and seems like an option worth waiting on (I mean
this from fileserver with SSD cache point of view). So keep up the
good work, and thanks for an answer, if there will be one :)

Take care,
b.

Re: Current state of hot data relocation functionality

[Bostjan Skufca]

Anyone?

On 18 September 2010 01:33, Bostjan Skufca <bostjan@a2o.si> wrote:
> Hi all!
>
> I was looking into some custom fileserver options and noticed two
> facts about ZFS - support for L2ARC (albeit not persistant across
> reboots, which is a downer) and OpenSolaris being a dead meat. Then I
> found out that some patches were already floating around linux
> mailinglists, patches about hot data relocation, but unfortunately
> nothing definitive. So I would like to ask here: what is the status of
> hot data relocation functionality?
>
> I haven't had a chance to try out btrfs myself, but from what I see it
> sure looks promising and seems like an option worth waiting on (I mean
> this from fileserver with SSD cache point of view). So keep up the
> good work, and thanks for an answer, if there will be one :)
>
> Take care,
> b.
>

Re: Current state of hot data relocation functionality

[Anish Tondwalkar]

You can patch btrfs for experimental hot relocation.
Ben Chociej posted this: http://article.gmane.org/gmane.linux.kernel/10=
22603
--
Anish Tondwalkar


On Wed, Sep 22, 2010 at 7:04 PM, Bostjan Skufca <bostjan@a2o.si> wrote:
> Anyone?
>
> On 18 September 2010 01:33, Bostjan Skufca <bostjan@a2o.si> wrote:
>> Hi all!
>>
>> I was looking into some custom fileserver options and noticed two
>> facts about ZFS - support for L2ARC (albeit not persistant across
>> reboots, which is a downer) and OpenSolaris being a dead meat. Then =
I
>> found out that some patches were already floating around linux
>> mailinglists, patches about hot data relocation, but unfortunately
>> nothing definitive. So I would like to ask here: what is the status =
of
>> hot data relocation functionality?
>>
>> I haven't had a chance to try out btrfs myself, but from what I see =
it
>> sure looks promising and seems like an option worth waiting on (I me=
an
>> this from fileserver with SSD cache point of view). So keep up the
>> good work, and thanks for an answer, if there will be one :)
>>
>> Take care,
>> b.
>>
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