04.06.2016 20:00, Chris Murphy пишет: > On Sat, Jun 4, 2016 at 1:24 AM, Andrei Borzenkov <arvidj...@gmail.com> wrote: >> 04.06.2016 04:51, Christoph Anton Mitterer пишет: >> ... >>> >>>> The only extant systems that support higher >>>> levels of replication and call it RAID-1 are entirely based on MD >>>> RAID >>>> and it's poor choice of naming. >>> >>> Not true either, show me any single hardware RAID controller that does >>> RAID1 in a dup2 fashion... I manage some >2PiB of storage at the >>> faculty, all controller we have, handle RAID1 in the sense of "all >>> disks mirrored". >>> >> >> Out of curiosity - which model of hardware controllers? Those I am aware >> of simply won't let you create RAID1 if more than 2 disks are selected. > > SNIA's DDF 2.0 spec Rev 19 > page 18/19 shows 'RAID-1 Simple Mirroring" vs "RAID-1 Multi-Mirroring" >
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