Re: [GSoC2016] BlueStore SMR Support

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On Mon, Mar 14, 2016 at 5:47 PM, Sage Weil <sweil@xxxxxxxxxx> wrote:
> On Sun, 13 Mar 2016, Giridhar Yasa wrote:
>> On Fri, Mar 11, 2016 at 8:20 PM, Sage Weil <sweil@xxxxxxxxxx> wrote:
>> >
>> > On Fri, 4 Mar 2016, Shehbaz Jaffer wrote:
>> >
>> > > 2) Will scope of project be to build an allocator on a simulator for
>> > > SMR Drives? Or will I get actual HDDs to work with? In case of
>> > > simulators, will the project involve building a simulator on disksim?
>> >
>> > I seem to remember hearing something about a dm module that simulated SMR,
>> > but I'm not sure.  We may also be able to get some SMR disks to play
>> > with--I'll reach out to our drive vendor friends.
>>
>> Would that be https://github.com/hgst/libzbc from HGST?
>
> Yes.
>
> I'm not sure about a disk simulator or actual drive availability,
> though.

libzbc has an emulation mode that can use files or block devices to
emulate SMR disk zones.

Giridhar

--
Giridhar Yasa | Flipkart Engineering | http://www.flipkart.com/
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