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Host PowerTools automatically discovers Active-Active volumes during the volume query. 

  • Whenever Active-Active volume is discovered, a dedicated table with Active-Active related information ("Active-Active Volumes" table) will be available on volume listing. 
  • Active-Active volumes are marked on each system volume list.
    • An Active-Active volume can be mapped to a host through one or both of the peers. 

Note:

  • Each mapped peer will appear in its system volumes list.
  • If both peers are mapped, they will have the same specifications: Device (unique identifier), mount point and size.
    • Number of paths are depended on the zoning to each of the systems.
    • The LUN (ID) is depended on the mapping. It is recommended to map both peers with the same LUN.
    • The volume name of each peer can be different. 

"Active/Active Volumes" table

The "Active-Active Volumes" table provides the following information:

  • The device name of the Active-Active volume. (unique identifier)
  • Mount point. (if mounted)
  • Information about each peer system, presented under "System A/B" columns.
    • System name.
    • LUN's paths ALUA state
    • Number of paths to each system.

Note:

  • "System A" column will present the system with the lower S/N.
    • If only one peer is mapped, it will be presented on the "System A" column.
  • Complete information is available only for mapped peers. 
  • The ALUA state is not available on AIX operating system.

Querying via CLI

Active-Active volumes can be queried using the ‘Infinihost volume list’ command. 

  • Active-Active volumes are marked in each system volume list with a ‘**’ suffix on the volume's name.
  • The "–detailed" argument can be used to present additional information such as LUN and the systems S/N. 

Example

>Infinihost volume list
System (name=IBOX100, serial=100):
Name                                 Device          Mount      Size(1 GB)   # Paths   LUN     Protocol
(Controller)                         -               -          -            3*        0       FC
VOL-Non-AA                           PHYSICALDRIVE1  D:\        10.00        3         1       FC
VOL-AA**                             PHYSICALDRIVE2  E:\        10.00        3         2       FC

System (name=IBOX101, serial=101):
Name                                 Device          Mount      Size(1 GB)   # Paths   LUN     Protocol
(Controller)                         -               -          -            6*        0       FC
VOL-AA**                             PHYSICALDRIVE2  E:\        10.00        6         2       FC

* Non-multipathed
** Active/Active volume

Active/Active volumes:

Device               Mount        System A: ALUA State (# Paths)        System B: ALUA State (# Paths)                        
PHYSICALDRIVE2       E:\          IBOX100: Active/Optimized (3)         IBOX101: Active/Non-optimized (6)

Querying via GUI

Open the main screen. 

  • The "ACTIVE / ACTIVE Volumes" table appears whenever an Active-Active volume is discovered. 
    • When hovering over a system the LUN appears. 
  • Active-Active volumes are labeled with "ACTIVE/ACTIVE" in each system volume list.

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