[gpfsug-discuss] NSD access routes

Dave Goodbourn dave at milk-vfx.com
Mon Jun 5 14:10:21 BST 2017


Ah yep, thanks a lot.

----------------------------------------------------
*Dave Goodbourn*
Head of Systems
*MILK <http://www.milk-vfx.com/> VISUAL EFFECTS*

5th floor, Threeways House,
40-44 Clipstone Street London, W1W 5DW
Tel: *+44 (0)20 3697 8448*
Mob: *+44 (0)7917 411 069*

On 5 June 2017 at 13:24, Simon Thompson (IT Research Support) <
S.J.Thompson at bham.ac.uk> wrote:

> mmdiag --lroc
>
> ?
>
>
> From: <gpfsug-discuss-bounces at spectrumscale.org> on behalf of "
> dave at milk-vfx.com" <dave at milk-vfx.com>
> Reply-To: "gpfsug-discuss at spectrumscale.org" <
> gpfsug-discuss at spectrumscale.org>
> Date: Monday, 5 June 2017 at 13:19
> To: "gpfsug-discuss at spectrumscale.org" <gpfsug-discuss at spectrumscale.org>
> Subject: Re: [gpfsug-discuss] NSD access routes
>
> OK scrap my first question, I can't do what I wanted to do anyway!
>
> I'm testing out the LROC idea. All seems to be working well, but, is there
> anyway to monitor what's cached? How full it might be? The performance etc??
>
> I can see some stats in mmfsadm dump lroc but that's about it.
>
> Cheers,
> ----------------------------------------------------
> *Dave Goodbourn*
> Head of Systems
> *MILK <http://www.milk-vfx.com/> VISUAL EFFECTS*
>
> 5th floor, Threeways House,
> 40-44 Clipstone Street London, W1W 5DW
> Tel: *+44 (0)20 3697 8448*
> Mob: *+44 (0)7917 411 069*
>
> On 5 June 2017 at 08:52, Luis Bolinches <luis.bolinches at fi.ibm.com> wrote:
>
>> Hi
>>
>> Have you look at LROC instead? Might fit in simpler way to what your are
>> describing.
>>
>> --
>> Cheers
>>
>> On 5 Jun 2017, at 10.51, Dave Goodbourn <dave at milk-vfx.com> wrote:
>>
>> Morning all,
>>
>> Just a quick one about NSD access and read only disks.
>>
>> Can you have 2 NSD servers, one with read/write access to a disk and one
>> with just read only access to the same disk? I know you can write to a disk
>> over the network via another NSD server but can you mount the disk in read
>> only mode to increase the read performance? This is all virtual/cloud based.
>>
>> Is GPFS clever enough (or can it be configured) to know to read from the
>> locally attached read only disk but write back via another NSD server over
>> the GPFS network?
>>
>> Cheers,
>> -----------------------------
>> Dave Goodbourn
>>
>> Head of Systems
>> Milk Visual Effects
>> Tel: +44 (0)20 3697 8448 <+44%2020%203697%208448>
>> Mob: +44 (0)7917 411 069 <+44%207917%20411069>
>>
>>
>> Ellei edellä ole toisin mainittu: / Unless stated otherwise above:
>> Oy IBM Finland Ab
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>> Registered in Finland
>>
>>
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