Proware EP-2243D-F4S3, User Manual

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Fibre to SAS/SATA II RAID Subsystem
118 User Manual
Case 5: Four Volume Sets: 2 are Mapped to Channel 0, and 2 are
mapped to Channel 1
When a Volume Set is created and mapped to Channel 0 LUN 0 , the
Volume Set is Active in Controller 1 Port 0 (Host A channel), and
Standby in Controller 2 .
When a second Volume Set is created and mapped to Channel 0 LUN 1 ,
the Volume Set is Active in Controller 2 Port 0 (Host A channel), and
Standby in Controller 1 .
When a third Volume Set is created and mapped to Channel 1 LUN 0 , the
Volume Set is Active in Controller 1 Port 1 (Host B channel), and
Standby in Controller 2 .
When a fourth Volume Set is created and mapped to Channel 1 LUN 1 ,
the Volume Set is Active in Controller 2 Port 1 (Host B channel), and
Standby in Controller 1 .
Volume Channel/LUN Mapping Remarks
Volume Set #000 0 / 0
Channel 0 => Port 0 /
LUN 0 => Controller 1
Volume Set #001 0 / 1
Channel 0 => Port 0 /
LUN 1 => Controller 2
Volume Set #002 1 / 0
Channel 1 => Port 1 /
LUN 0 => Controller 1
Volume Set #003 1 / 1
Channel 1 => Port 1 /
LUN 1 => Controller 2
NOTE: All even number LUNs assigned to Volume Sets will be Active in
Controller 1 and all odd number LUNs assigned to Volume Sets
will be Active in Controller 2.
IMPORTANT: MPIO must be configured on the host system(s), in
order for redundant LUNs (two paths via Controller 1 and 2) to
appear as single LUNs.