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Re: [linux-lvm] Help: LVM on top of SW RAID0+1




-- Jon Bendtsen <jon+lvm silicide dk>


"Ian E. Morgan" wrote:

Current config:


md1: raid0 of hda3, hdb3
md2: raid0 of hdc3, hdd3
md3: raid1 of md1, md2

hmm. I tried various combinations of raid0 and raid1 ontop of each other. One combination had a REALLY REALLY severe performance penalty.

Why would you want to use raid0 with LVM? You can combine the mirrors into a VG and distribute the space out using LVM in the first place. You also have the option of using striping for performance if works out with the software mirrors.



--
Steven Lembark                               2930 W. Palmer
Workhorse Computing                       Chicago, IL 60647
                                           +1 888 359 3508



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