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Chapter 3: Configuring DCPMM Settings Using Open Source Utilities
App Direct Mode Configuration
In App Direct Mode, DCPMMs can be provisioned with either interleaved or non-interleaved
enabled. In interleaved configurations, all DCPMMs are seen as one monolithic space,
which is similar in concept to RAID-0 in traditional storage. In non-interleaved configurations,
each DCPMM is seen as a separate space, which is similar in concept to JBOD in traditional
storage. DCPMM interleaving increases the throughput of reads and writes to persistent
memory.
Use the
ipmctl
create -goal
PersistentMemoryType=AppDirect
, or the default
ipmctl
create -goal
command to set a
goal
that creates an interleaved region across all the
DCPMMs discovered in the system. The two commands are equivalent in this action.
To create a
goal
that creates non-interleaved regions, use the
ipmctl create -goal
PersistentMemoryType=AppDirectNotInterleaved
command (Please specify the
PersistentMemoryType
to be
AppDirectNotInterleaved
).
E.1. App Direct Mode Configuration (CentOS)
E.2. App Direct Mode Configuration (Windows)
