RAID

[Phillip Susi]

Yes, LVM allows for RAID.  It can handle concatenation/jbod, mirroring, 
striping, and I believe even raid5.  It seems that the MD system is 
still supported, but will be depreciated at some point in future kernels 
once the device mapper becomes more accepted.

Anders Karlsson wrote:
> Does the Sistina LVM really allow for RAID? From what I have read,
> Sistina LVM runs on top of the device mapper, which AFAIK will only
> allow aggregation of devices (i.e. not even proper striping). If you
> use the MD subsystem, you do get the full RAID capabilities, little
> things like hot spares etc.
> 
> Running LVM on top of MD devices is not only supported, but a good
> idea if you start running large RAID5 arrays.
> 
> I keep hearing people touting LVM as some sort of a RAID solution.
> While Sistina LVM is good, it ain't MD by anyones standards.
> 
> Just my €0.02
> 
> --
> Anders Karlsson <trudheim at gmail.com>
>