Re: [Lustre-discuss] OST retirement

2009-10-09 Thread Arne Wiebalck

Hi Ramiro,

I did the retirement on a test setup, just to familiarize myself
with the procedure of draining and retiring/replacing OSSs.
The test installation is a  1.8.0.1 Lustre with 40 active and
12 inactive OSTs ;-)

Cheers,
 Arne




Ramiro Alba Queipo wrote:

Arne,

This is the same question I've put two months ago, with no answer. Which
kind of installation do you have?

Cheers

On Wed, 2009-10-07 at 15:21 +0200, Arne Wiebalck wrote:

Dear list,

is there a way to see the difference whether I deactivated
an OST filesystem-wide by

lctl --device 15 conf_param pps-OST000a.osc.active=0

   or only locally by

lctl set_param osc.pps-OST000a-osc.active=0?

And: After deactivation, I see the OSTs still on the device
list (as inactive): is there a way to completely remove them,
so that new clients would have no idea they ever existed (and
the uuids get eventually reused)?

TIA,
  Arne

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Re: [Lustre-discuss] OST retirement

2009-10-09 Thread Ramiro Alba Queipo
Arne,

This is the same question I've put two months ago, with no answer. Which
kind of installation do you have?

Cheers

On Wed, 2009-10-07 at 15:21 +0200, Arne Wiebalck wrote:
> Dear list,
> 
> is there a way to see the difference whether I deactivated
> an OST filesystem-wide by
> 
> lctl --device 15 conf_param pps-OST000a.osc.active=0
> 
>or only locally by
> 
> lctl set_param osc.pps-OST000a-osc.active=0?
> 
> And: After deactivation, I see the OSTs still on the device
> list (as inactive): is there a way to completely remove them,
> so that new clients would have no idea they ever existed (and
> the uuids get eventually reused)?
> 
> TIA,
>   Arne
> 
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[Lustre-discuss] OST retirement

2009-10-07 Thread Arne Wiebalck

Dear list,

is there a way to see the difference whether I deactivated
an OST filesystem-wide by

lctl --device 15 conf_param pps-OST000a.osc.active=0

  or only locally by

lctl set_param osc.pps-OST000a-osc.active=0?

And: After deactivation, I see the OSTs still on the device
list (as inactive): is there a way to completely remove them,
so that new clients would have no idea they ever existed (and
the uuids get eventually reused)?

TIA,
 Arne



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