Storage operations center
The storage operations center provides graphical presentation of the storage links that interconnect storage pools, storage resources, hosts, and storage ports in the form of a topology, as well as storage link status statistics. This function helps you troubleshoot storage link issues.
Display storage link details
On the top navigation bar, click Ops Center.
From the left navigation pane, select Storage Ops Center.
Perform the following tasks to view storage link details about a node:
Click a node in the topology.
Configure the filter criteria to search for a node, as described in "Parameters." To reset the filter criteria, click Reset.
Synchronize the status of storage links
Perform this task to restore storage link data consistency after the following events occur:
A storage link is added or deleted from the command line of a host.
The system is upgraded from a version earlier than E0781 to the current version.
A storage link is disconnected unexpectedly, or a disconnected storage link recovers.
To synchronize the status of storage links:
On the top navigation bar, click Ops Center.
From the left navigation pane, select Storage Ops Center.
Click Synchronize.
View the state history of a storage link
On the top navigation bar, click Ops Center.
From the left navigation pane, select Storage Ops Center.
Click a multipathing icon, and then click History Link State.
View the link history states, link failure time, and link recovery time.
Parameters
Cloud resource node
Type: Type of the node, which can only be cloud resource
. A cloud resource node represents all resources listed in the Resources > Compute resource tree.
Host Pool: Number of host pools among the cloud resources.
Cluster: Number of clusters among the cloud resources.
Shared File Systems: Number of shared file systems among the cloud resources.
Host: Number of service hosts among the cloud resources.
Multipathing: Number of redundant storage paths for the cloud resources.
Physical Port: Number of storage-facing physical ports for the cloud resources.
Storage Physical Port: Number of storage-side physical ports for the cloud resources.
Link: Number of storage links for the cloud resources.
Link Failures: Number of failed storage links for the cloud resources.
Host pool node
Type: Type of the node, which can only be host pool
. A host pool node represents all host pools listed in the Resources > Compute resource tree.
Cluster: Number of clusters in the host pools.
Shared File Systems: Number of shared file systems in the host pools.
Host: Number of service hosts in the host pools.
Multipathing: Number of redundant storage paths for the host pools.
Physical Port: Number of storage-facing physical ports for the host pools.
Storage Physical Port: Number of storage-side physical ports for the host pools.
Link: Number of storage links for the host pools.
Link Failures: Number of failed storage links for the host pools.
Cluster node
Type: Type of the node, which can only be cluster
. A cluster node represents all clusters listed in the Resources > Compute resource tree.
Shared File Systems: Number of shared file systems in the clusters.
Host: Number of service hosts in the clusters.
Multipathing: Number of redundant storage paths for the clusters.
Physical Port: Number of storage-facing physical ports for the clusters.
Storage Physical Port: Number of storage-side physical ports for the clusters.
Link: Number of storage links for the clusters.
Link Failures: Number of failed storage links for the clusters.
Storage pool node
Type: Type of the storage pool, which can be iSCSI shared file system or FC shared file system. The storage pool node icon is
.
Target Path: Mount path of the storage pool.
Total: Total capacity of the storage pool.
Allocated: Allocated space of the storage pool.
Available: Available space of the storage pool.
Hosts Using Shared Storage: Hosts with the storage pool mounted.
Link: Number of storage links in the storage pool.
Link Failures: Number of failed storage links in the storage pool.
Host node
Type: Type of the node, which can only be host
. A host node represents a host listed in the Resources > Compute resource tree.
State: State of the host.
Shared Storage: Shared storage mounted to the host.
Multipathing: Path between the shared storage and host.
Physical Port: Storage-facing physical port for the host.
Storage Physical Port: Storage-side physical port for the host.
Link: Number of storage links for the host.
Link Failures: Number of failed storage links for the host.
Multipathing node
Type: Type of the node, which can only be multipathing. A multipathing node in normal state is displayed as
, and it is in red if the node is in failed state. A host can have multiple available physical path mappings to a LUN, and the multipathing function bundles those paths into a device to offer storage services and link redundancy. Multipathing enables traffic to fail over from a failed physical link to the remaining available physical links.
State: State of the multipathing node.
Storage Pool: Storage pool connected to the multipathing node.
Host: Host connected to the multipathing node.
Failure Occurred At: Time when link failure occurred. If no link has failed, this field displays two minus signs (--).
Physical port node
Type: Type of the node. A physical port node in normal state is displayed as
, and it is in red if the node is in failed state.
For an FC storage device, the physical port host corresponds to the host's HBA connected to the attached link. The path is the same as that of the HBA. To obtain the WWN of the HBA, us the cat /sys/class/fc_host/host*/port_name command.
For an iSCSI storage device, the physical port corresponds to the iSCSI session created over the attached link. The path is the same as that of the session. To obtain the path and target of the session, use the iscsiadm -m session -P3 command.
State: State of the physical port.
Storage physical port node
Type: Type of the node, which can only be physical port
.
Port Number: Port number used to identify the target storage-side port.
For an FC storage device, the port number is a field in the path mapping under /dev/disk/by-path. The field is between the fc- and lun-* fields in the path. For example, pci-0000:44:00.0-fc-0x21010002ac01e2d7-lun-0 -> ../../sdf.