> On Mon, 2 Nov 1998, Shawn Leas wrote:
> > Because LVM is basically at it's core a physical -> logical address
> > remapping mechanism, RAID, mirroring, and all the goodies fit REAL
> > nice in userland.
> ugh ... RAID in user-land? Have you thought about the performance
> implications yet? How do you implement features like 'idle IO bandwith
> utilization' in user-space (it's part of the kernel-space RAID driver)?
> How do you boot from such a device? What do you do if the user-space RAID
> code happens to page-in itself from ... a RAID-device? User-space RAID is,
> believe me, unbelievably more complex (thus slower) than kernel-space
> RAID. Frankly, i can see no good reason to put RAID into user-space, only
> (unnecessary) problems.
> -- mingo
All correct. Not having RAID in LVM doesn't negate the benefits of
having LVM. You are very correct though.
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