Increased Memory Requirements for VIOS 2.1 and LHEA
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Using NIM to install VIOS 2.1
The install may hang with after the message: "Mounting File Systems"
Why? VIOS 2.1 requires more than 1GB of memory typical for VIOS 1.5
From the Release Notes:
Each LHEA *port* assigned to the VIO Server requires a minimum of 612MB (not a typo) of memory - *each* port. This is in addition to the base memory that VIOS 2.1 itself requires (typically 512MB).
If you have two  LHEAs assigned to VIOS 2.1, the VIOS will need a minimum of:
612 MB + 612 MB + 512 MB = 1,736MB (LHEA) + (LHEA) + (Base) = Minimum RAM