LSI RAID

LSI RAID

[Gandalf Corvotempesta]

Hi to all
silly question: i've read that LSI/PERC Hardware controller supports DDF.

Would be possible, for mdadm, to use a RAID created with an LSI/PERC
controller supporting DDF ?

Re: LSI RAID

[Gandalf Corvotempesta]

anyone?

2017-02-13 11:33 GMT+01:00 Gandalf Corvotempesta
<gandalf.corvotempesta@gmail.com>:
> Hi to all
> silly question: i've read that LSI/PERC Hardware controller supports DDF.
>
> Would be possible, for mdadm, to use a RAID created with an LSI/PERC
> controller supporting DDF ?

Re: LSI RAID

[Stan Hoeppner]

No, you must use the LSI tools.


On 02/27/2017 10:02 AM, Gandalf Corvotempesta wrote:
> anyone?
>
> 2017-02-13 11:33 GMT+01:00 Gandalf Corvotempesta
> <gandalf.corvotempesta@gmail.com>:
>> Hi to all
>> silly question: i've read that LSI/PERC Hardware controller supports DDF.
>>
>> Would be possible, for mdadm, to use a RAID created with an LSI/PERC
>> controller supporting DDF ?
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Re: LSI RAID

[Hannes Reinecke]

On 02/27/2017 05:02 PM, Gandalf Corvotempesta wrote:
> anyone?
> 
> 2017-02-13 11:33 GMT+01:00 Gandalf Corvotempesta
> <gandalf.corvotempesta@gmail.com>:
>> Hi to all
>> silly question: i've read that LSI/PERC Hardware controller supports DDF.
>>
>> Would be possible, for mdadm, to use a RAID created with an LSI/PERC
>> controller supporting DDF ?
Sure.
The recent mdadm should be able to create DDF metadata.

Cheers,

Hannes
-- 
Dr. Hannes Reinecke		      zSeries & Storage
hare@suse.de			      +49 911 74053 688
SUSE LINUX Products GmbH, Maxfeldstr. 5, 90409 Nürnberg
GF: J. Hawn, J. Guild, F. Imendörffer, HRB 16746 (AG Nürnberg)

Re: LSI RAID

[Gandalf Corvotempesta]

2017-02-28 10:06 GMT+01:00 Hannes Reinecke <hare@suse.de>:
> Sure.
> The recent mdadm should be able to create DDF metadata.

This means that i'll be able to import a configuration created with a
LSI MegaRaid controller and use them with mdadm ?
If yes, how ?

Re: LSI RAID

[Gandalf Corvotempesta]

2017-02-28 10:44 GMT+01:00 Gandalf Corvotempesta
<gandalf.corvotempesta@gmail.com>:
> 2017-02-28 10:06 GMT+01:00 Hannes Reinecke <hare@suse.de>:
>> Sure.
>> The recent mdadm should be able to create DDF metadata.
>
> This means that i'll be able to import a configuration created with a
> LSI MegaRaid controller and use them with mdadm ?
> If yes, how ?

Bump

RE: LSI RAID

[Jared.Dominguez]

Dell Customer Communication 

 
> 2017-02-28 10:44 GMT+01:00 Gandalf Corvotempesta
> <gandalf.corvotempesta@gmail.com>:
> > 2017-02-28 10:06 GMT+01:00 Hannes Reinecke <hare@suse.de>:
> >> Sure.
> >> The recent mdadm should be able to create DDF metadata.
> >
> > This means that i'll be able to import a configuration created with a
> > LSI MegaRaid controller and use them with mdadm ?
> > If yes, how ?

Support for DDF doesn't imply ability to use another vendor's DDF array. DDF allows for extensive vendor-specific metadata, which would impact the ability to import, say, a Broadcom array.

Re: LSI RAID

[NeilBrown]

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On Tue, Feb 28 2017, Gandalf Corvotempesta wrote:

> 2017-02-28 10:06 GMT+01:00 Hannes Reinecke <hare@suse.de>:
>> Sure.
>> The recent mdadm should be able to create DDF metadata.
>
> This means that i'll be able to import a configuration created with a
> LSI MegaRaid controller and use them with mdadm ?
> If yes, how ?

Try it and see.
i.e. plug the devices into a Linux box with mdadm installed, and see
what happens.

NeilBrown

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