The system allows you to migrate data across MDisks without interfering
with any host applications that are simultaneously accessing or writing data.The
system allows you to change the array MDisks and storage pools that store a volume's
data.
During data migration, host applications can continue to access
and use volume data as if no
data migration were occurring.
Data migration applications
Data migration has the following characteristics and applications:
- Changes the MDisks to which the volume is allocated.
- Does not disrupt access to the volume data.
- Can be used when you are removing MDisks from a clustered
system.
- Can move data to an MDisk that has appropriate performance for host requirements.
- Can move data from image mode volumes to MDisks when you
are adding a
system to an existing SAN infrastructure.
- Can migrate striped and sequential volumes to an image mode
volume.
- Data migration changes the MDisks that store data for one or more volumes.
- Data migration does not disrupt access to the volume data.
- Data migration can be used to move volume data from existing storage systems onto storage pools
when you are adding
a system to an existing SAN infrastructure.
- Data migration can be used when you are removing drives and array MDisks from the system.
- Data migration can be used to move volume data to a storage pool that has appropriate
performance for host requirements.