[gpfsug-discuss] NSD access routes

[Simon Thompson (IT Research Support)]

mmdiag --lroc

?


From: <gpfsug-discuss-bounces at spectrumscale.org<mailto:gpfsug-discuss-bounces at spectrumscale.org>> on behalf of "dave at milk-vfx.com<mailto:dave at milk-vfx.com>" <dave at milk-vfx.com<mailto:dave at milk-vfx.com>>
Reply-To: "gpfsug-discuss at spectrumscale.org<mailto:gpfsug-discuss at spectrumscale.org>" <gpfsug-discuss at spectrumscale.org<mailto:gpfsug-discuss at spectrumscale.org>>
Date: Monday, 5 June 2017 at 13:19
To: "gpfsug-discuss at spectrumscale.org<mailto:gpfsug-discuss at spectrumscale.org>" <gpfsug-discuss at spectrumscale.org<mailto: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
[http://www.milk-vfx.com/src/milk_email_logo.jpg]
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<mailto: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<mailto: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<tel:+44%2020%203697%208448>
Mob: +44 (0)7917 411 069<tel:+44%207917%20411069>

Ellei edellä ole toisin mainittu: / Unless stated otherwise above:
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