About
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.
Last edited: 2021-11-17 17:04:28 UTC
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