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Boot AIX from SAN using DMP
We are trying to have a diskless AIX system... Booting AIX from our HDS
lightning box it not a problem, works fine. The issue comes up when we try to frovide redundancy to the rootvg. There are a number of DMP products we can use HDLM, MPIO or VxVM. However it seems none of them are supported and the certified configuration from IBM and HDS is to give two seperate disks to each HBA and use LVM to mirror to these two disks. Well I dont have to explain to anyone what a rediculous situation this is... So my question is, is there any other way we can do this, does anyone have any experiance booting AIX with redundant paths from a SAN? |
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"daniel" wrote in message
... We are trying to have a diskless AIX system... Booting AIX from our HDS lightning box it not a problem, works fine. The issue comes up when we try to frovide redundancy to the rootvg. There are a number of DMP products we can use HDLM, MPIO or VxVM. However it seems none of them are supported and the certified configuration from IBM and HDS is to give two seperate disks to each HBA and use LVM to mirror to these two disks. Well I dont have to explain to anyone what a rediculous situation this is... So my question is, is there any other way we can do this, does anyone have any experiance booting AIX with redundant paths from a SAN? It's not as ridiculous as you think. Unless DMP is implemented as an inherent part of the system or HBA firmware it's impossible to run any DMP services before AIX is booted. So keeping a mirror is about the only thing you can do once the system is up. You can do that in hardware too, you don't need to use software mirroring. Rob |
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