VIO architecture design and build V1.0.ppt
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© 2008 IBM Corporation
July 29th 2008
IBM confidential
VIO Server architecture design and build
Alain Lentini - CoC Unix Lge
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Alain Lentini / CoC Unix Lge
Some explainations of the presentation
VIOs architecture design :
Standard LVM mirroring for VIO rootvg (separate SCSI adapters in each VIO)
Both VIOs active for virtual SCSI (used for AIX partitions rootvg mirroring)
Active/passive model for Ethernet access
Mutual takeover (heartbeat)
Failure of one VIO transparent to partitions (a few IP packets lost)
Allows hot maintenance of VIOs
Each VIO on a different LAN switch
Multipathing for SAN access inside each VIO (sddpcm) + pathing failover in the
AIX partition between the 2 VIOs (Mpio)
Various SAN ACCESS ( SDDPCM for Ess DS8000 and SVC – RDAC )
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