Am Wednesday 10 April 2013 18:05:08 schrieb Ross Boylan: > > > > You cannot get more than about 200MB/s out of a RAID1 setup, not even > > with > > 15krpm SAS drives. the RAID1 will never be faster than a single disk. > > How > > would it. > > It can read faster than a single disk by combining reads from different > sectors on different disks. I think your assertion is incorrect for > reading, though not for writing. > > Ross Boylan Then dm would have to manage/combine the reads from the involved disks. I do not know better, but I doubt this is done. I'll ask the raid list for curiousity's sake. -- -----BEGIN GEEK CODE BLOCK----- Version: 3.12 GCS d--(+)@ s-:+ a C++++ UL++ P+>++ L+++>++++ E-- W++ N o? K- w--(---) !O M+ V- PS+ PE Y++ PGP t++(---)@ 5 X+(++) R+(++) tv--(+)@ b++(+++) DI+++ D- G++ e* h>++ r* y? ------END GEEK CODE BLOCK------
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