Controller module ID: A or B.
Serial Number
- Serial number.
- Not Available: The controller module is down or not installed.
Hardware Version
Hardware version.
CPLD Version
Complex Programmable Logic Device firmware version.
MAC Address
Network port MAC address.
WWNN
Storage system World Wide Node Name (WWNN).
IP Address
Network port IP address.
IP Subnet Mask
Network port IP subnet mask.
IP Gateway
Network port gateway IPv4 address.
IP6 Link Local
The link-local IPv6 address.
IP6 Link Local GW
The network port gateway IPv6 address.
Autoconfig
- enabled: Uses an IPv6 address computed by SLAAC or assigned by a DHCPv6 server, depending on the network configuration. If a DHCPv6 address is available, then that address is used. Otherwise SLAAC is used.
- disabled: Uses static IPv6 addresses set with the add
ipv6-address command.
DHCPv6
The IP address assigned by a DHCPv6 server.
SLAAC IP Address
The IP address computed by SLAAC.
IP6 Auto Gateway
The IPv6 address of a gateway system (auto-discovered, not configured).
IP6 Address (1-4)
From one to four manually set IPv6 addresses. Only shown when the controller is set to manual IPv6 addressing.
IP6 Gateway (1-4)
From one to four manually set network-port gateway IPv6 addresses. Only shown when the controller is set to manual IPv6 addressing.
Disks
Number of disks in the storage system.
Virtual Pools
Number of virtual pools in the storage system.
Disk Groups
Number of disk groups in the storage system.
System Cache Memory (MB)
Controller module cache memory size, in MB, including CPU memory available to I/O.
Host Ports
Number of host ports in the controller module.
Disk Channels
Number of expansion ports in the controller enclosure.
Disk Bus Type
Type of interface between the controller module and disks:
Status
- Operational
- Down
- Not Installed
Failed Over to This Controller
Indicates whether the partner controller has failed over to this controller:
- No: The partner controller has not failed over to this controller.
- Yes: The partner controller has either failed or been shut down, and its responsibilities have been taken over by this controller. There will be a delay between the time that the value of Status becomes Down for one controller and the time that the value of Failed Over to This Controller becomes Yes for the other controller. This time period is the time that it takes for a controller to take over the responsibilities of its partner.
Fail Over Reason
If Failed Over to This Controller is Yes, a reason for the failover appears; otherwise, Not applicable appears.
Multi-core
Shows whether the controller module is using multiple processing cores.
- Enabled: Multiple cores are active.
- Disabled: A single core is active.
Health
- OK
- Degraded
- Fault
- N/A
- Unknown
Health Reason
If Health is not OK, this field shows the reason for the health state.
Health Recommendation
If Health is not OK, this field shows recommended actions to take to resolve the health issue.
Position
Position of the controller in the enclosure:
- Left: The controller is in the left slot.
- Right: The controller is in the right slot.
- Top: The controller is in the top slot.
- Bottom: The controller is in the bottom slot.
Phy Isolation
Shows whether the automatic disabling of SAS expander PHYs having high error counts is enabled or disabled for this controller.
- Enabled: PHY fault isolation is enabled.
- Disabled: PHY fault isolation is disabled.
Controller Redundancy Mode
Shows the system’s operating mode, also called the cache redundancy mode:
-
Active-Active ULP: Both controllers are active using ULP (Unified LUN Presentation). Data for volumes configured to use write-back cache is automatically mirrored between the two controllers to provide fault tolerance.
- Single Controller: The enclosure contains a single controller.
- Failed Over: Operation has failed over to one controller because its partner is not operational. The system has lost redundancy.
- Down: Both controllers are not operational.
Controller Redundancy Status
- Redundant: Both controllers are operational.
- Operational but not redundant: In active-active mode, one controller is operational and the other is offline. In single-controller mode, the controller is operational.
- Down: This controller is not operational.
- Unknown: Status information is not available.
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