[SPDK] Re: Using of Compression VBDEV

Hi Rusian,

As it turns out Monica on the team here in AZ is interested in working on this… look for it over the coming weeks ☺

Thanks
Paul

From: Ruslan Laishev <zator(a)yandex.ru>
Date: Tuesday, September 14, 2021 at 4:05 AM
To: spdk(a)lists.01.org <spdk(a)lists.01.org>
Subject: [SPDK] Re: Using of Compression VBDEV
Hello!

 At this nanosecond I'm not sure about of necessity of this feature in my local project. May be in a near future ...

 Thanks to all for the support and explanation!

 Sincerely yours, Russian/Ruslan. :-)

> Yup yup. Rusian, let us know if you’re interested in working on these….
>
> From: Harris, James R <james.r.harris(a)intel.com&gt;
> Date: Monday, September 13, 2021 at 9:36 AM
> To: Storage Performance Development Kit <spdk(a)lists.01.org&gt;
> Subject: [SPDK] Re: Using of Compression VBDEV
> Or add a new spdk_reduce_vol_flush() API.  Then the reduce library can drive the flush
> operations just like it does for readv/writev.
>
> We also need support for RESET operation.
>
> -Jim
>
>
> On 9/13/21, 8:11 AM, "Luse, Paul E" <paul.e.luse(a)intel.com&gt; wrote:
>
>     It’s listed in a block of other non-RW bdev IO types as TODO.  I believe at the time
> it was just a matter of priorities.  We’d need change the reporting of supported types to
> match the underlying device, update the reduce lib to allow the bdev module to determine
> which blocks are associated with the incoming range and then just plumb the flush.
>
>     I may be missing something (Jim feel free to jump in).  Is this something you might be
> interested in working on?
>
>     Thx
>     Paul
>
>     From: Luse, Paul E <paul.e.luse(a)intel.com&gt;
>     Date: Monday, September 13, 2021 at 7:31 AM
>     To: Storage Performance Development Kit <spdk(a)lists.01.org&gt;
>     Subject: [SPDK] Re: Using of Compression VBDEV
>     I can’t remember off the top of my head why that’s not supported, Jim may recall.
> I’ll look through the code today and jog my memory though
>
>     Thx
>     Paul
>
>     From: Ruslan Laishev <zator(a)yandex.ru&gt;
>     Date: Monday, September 13, 2021 at 6:50 AM
>     To: spdk(a)lists.01.org <spdk(a)lists.01.org&gt;
>     Subject: [SPDK] Re: Using of Compression VBDEV
>
>     Hello!
>
>     Do I'm need to check something in the SPDK (may be configuration option for
> build?) ? Or this is a problem inspired by the VM's?
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