Re: RAID superblock

2000-10-29 Thread Wakko Warner

> > [Wakko Warner]
> > > While this subject is fresh, what would be wrong with using the
> > > entire drive as opposed to creating a partition and adding the
> > > partition to the raid?
> > 
> > Does it autodetect an entire drive?  The autodetect logic for
> > partitions looks at the 'partition type' byte, which of course doesn't
> > exist for a whole drive.

Actually, I don't think it does.  I've not booted into single user mode
(where the raid hasn'tbeen setup yet) to see.

> > Just a thought .. I don't run RAID here.
> 
> A good one. I seriously doubt that it indeed will detect drives. The're
> not partitions, the're drives.
> 
> Don't think the current RAID code handles entire drives. 

Autodetect, probably not.  But it doesn't seem to have any problems with it
as far as usability.

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Re: RAID superblock

2000-10-29 Thread Igmar Palsenberg

On Sun, 29 Oct 2000, Peter Samuelson wrote:

> [Wakko Warner]
> > While this subject is fresh, what would be wrong with using the
> > entire drive as opposed to creating a partition and adding the
> > partition to the raid?
> 
> Does it autodetect an entire drive?  The autodetect logic for
> partitions looks at the 'partition type' byte, which of course doesn't
> exist for a whole drive.
> 
> Just a thought .. I don't run RAID here.

A good one. I seriously doubt that it indeed will detect drives. The're
not partitions, the're drives.

Don't think the current RAID code handles entire drives. 



Igmar

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Re: RAID superblock

2000-10-29 Thread Peter Samuelson

[Wakko Warner]
> While this subject is fresh, what would be wrong with using the
> entire drive as opposed to creating a partition and adding the
> partition to the raid?

Does it autodetect an entire drive?  The autodetect logic for
partitions looks at the 'partition type' byte, which of course doesn't
exist for a whole drive.

Just a thought .. I don't run RAID here.

Peter
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Re: RAID superblock

2000-10-29 Thread Peter Samuelson

[Wakko Warner]
 While this subject is fresh, what would be wrong with using the
 entire drive as opposed to creating a partition and adding the
 partition to the raid?

Does it autodetect an entire drive?  The autodetect logic for
partitions looks at the 'partition type' byte, which of course doesn't
exist for a whole drive.

Just a thought .. I don't run RAID here.

Peter
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Re: RAID superblock

2000-10-29 Thread Igmar Palsenberg

On Sun, 29 Oct 2000, Peter Samuelson wrote:

 [Wakko Warner]
  While this subject is fresh, what would be wrong with using the
  entire drive as opposed to creating a partition and adding the
  partition to the raid?
 
 Does it autodetect an entire drive?  The autodetect logic for
 partitions looks at the 'partition type' byte, which of course doesn't
 exist for a whole drive.
 
 Just a thought .. I don't run RAID here.

A good one. I seriously doubt that it indeed will detect drives. The're
not partitions, the're drives.

Don't think the current RAID code handles entire drives. 



Igmar

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Re: RAID superblock

2000-10-26 Thread Wakko Warner

> > Hi,
> >  After I create a RAID setup on the drives,The
> > superblock will be generated at the end of the drives.
> > If I move these drives to other linux system, will
> > this
> >  system recognise the RAID setup without reconfiguring
> > the Linux ?
> 
> If the CHS / LBA settings are the same, and the kernel is the same : Yes.

While this subject is fresh, what would be wrong with using the entire drive
as opposed to creating a partition and adding the partition to the raid?

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Re: RAID superblock

2000-10-26 Thread Igmar Palsenberg

On Wed, 25 Oct 2000, Anil kumar wrote:

> Hi,
>  After I create a RAID setup on the drives,The
> superblock will be generated at the end of the drives.
> If I move these drives to other linux system, will
> this
>  system recognise the RAID setup without reconfiguring
> the Linux ?

If the CHS / LBA settings are the same, and the kernel is the same : Yes.


Igmar

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Re: RAID superblock

2000-10-26 Thread Helge Hafting

Anil kumar wrote:
> 
> Hi,
>  After I create a RAID setup on the drives,The
> superblock will be generated at the end of the drives.
> If I move these drives to other linux system, will
> this
>  system recognise the RAID setup without reconfiguring
> the Linux ?
> 
Yes - if that other linux system has a kernel compiled
with RAID autodetect too.  

Helge Hafting
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Re: RAID superblock

2000-10-26 Thread Helge Hafting

Anil kumar wrote:
 
 Hi,
  After I create a RAID setup on the drives,The
 superblock will be generated at the end of the drives.
 If I move these drives to other linux system, will
 this
  system recognise the RAID setup without reconfiguring
 the Linux ?
 
Yes - if that other linux system has a kernel compiled
with RAID autodetect too.  

Helge Hafting
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Re: RAID superblock

2000-10-26 Thread Igmar Palsenberg

On Wed, 25 Oct 2000, Anil kumar wrote:

 Hi,
  After I create a RAID setup on the drives,The
 superblock will be generated at the end of the drives.
 If I move these drives to other linux system, will
 this
  system recognise the RAID setup without reconfiguring
 the Linux ?

If the CHS / LBA settings are the same, and the kernel is the same : Yes.


Igmar

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Re: RAID superblock

2000-10-26 Thread Wakko Warner

  Hi,
   After I create a RAID setup on the drives,The
  superblock will be generated at the end of the drives.
  If I move these drives to other linux system, will
  this
   system recognise the RAID setup without reconfiguring
  the Linux ?
 
 If the CHS / LBA settings are the same, and the kernel is the same : Yes.

While this subject is fresh, what would be wrong with using the entire drive
as opposed to creating a partition and adding the partition to the raid?

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