About the Nodes page
The
page lists all the HCP General Nodes and HCP S Series Nodes in the HCP system. General Nodes remain listed on this page regardless of whether they are running, starting up, stopping, or not running. Nodes that have been permanently removed from the system are not displayed in the list.For each node in the HCP system, the General Node list on the page shows:
Node ID
The unique number assigned to the node.
Model
The type of node. Possible models are:
G11
A Hitachi Advanced Server DS220 that can exist in a RAIN or SAIN system
G10
A Hitachi Advanced Server that is the predecessor to the HCP G11. A HCP G10 can exist in a RAIN or SAIN system.
300
A server other than a G11 or G10 that exists in a HCP RAIN system
500
A server other than a G11 or G10 that exists in a HCP SAIN system
500XL
A server other than a G11 or G10 that exists in a HCP SAIN system
VM
A server running a HCP-VM system
Status
The node status. Possible values are:
Available
The node is running.
Unavailable
The node is either not running, starting up but not yet able to perform HCP functions, or shutting down and no longer able to perform HCP functions. If a node is unavailable because of a hardware problem, you might be able to determine the cause by reviewing the Hardware Status section on the individual Storage Node page.
Migrating
The node is available, and the Migration service is currently migrating data off the storage managed by the node.
Alert
The node is unavailable, and HCP can detect which components are experiencing problems. One or more alerts identifying the problems are displayed in the Alerts column.
NoteIf the status of a node changes from available to unavailable and the node does not restart automatically, contact your authorized HCP service provider. Do not try to restart the node manually; this action might cause the loss of information that is required to diagnose the problem.Alerts
None, one, or more icons representing components that are experiencing problems.
For more information about any problem, click the node number.
Logical Volumes
The status of the logical volumes managed by the node. Each logical volume can be one of these types:
Data volume
Primary running storage that stores object data, but does not store the metadata query engine index. Primary running storage is storage that is managed by the nodes in the HCP system and consists of continuously spinning disks.
Data volumes have numeric IDs in the range 1 (one) through 63 and 92 through 95.
Index volume
(SAIN systems only) Primary running storage that stores only the metadata query engine index. All storage nodes should have the same number of index volumes.
Index volumes have numeric IDs in the range 64 through 91.
Shared volume
Primary running storage that stores both object data and the metadata query engine index. All storage nodes have one shared volume.
The shared volume for each node has a numeric ID in the same range as data volumes.
Spindown volume
(SAIN systems only) Primary spindown storage that is used for tiering purposes. Primary spindown storage is storage that is managed by the nodes in the HCP system and consists of disks that can be spun down and spun up as needed. Primary spindown storage stores object data, but it does not store the metadata query engine index. All storage nodes should have the same number of spindown volumes.
Spindown volumes have numeric IDs in the range 96 through 127. The volume numbering starts at 96.
A SAIN system can have spindown volumes only if both of these conditions are true:
- One or more logical volumes used by the system are capable of being spun down. This means that they are on storage systems that support spindown.
- The system is configured to use one or more spindown-capable logical volumes as primary spindown storage.
NFS volume
(also called an external volume) Extended storage that is accessed using an NFS mount point. Extended storage is storage that is managed by devices outside of the HCP system and is used for storage tiering. NFS storage is one of six types of extended storage that you can configure HCP to use. NFS storage can be used to store object data only.
NFS volumes have numeric IDs in the range 96 through 127. The volume numbering starts from 127 and goes down.
Database volume
A volume that holds database transaction logs and indexes. Optional rear mounted SSD volumes are also available for G10 and G11 nodes. SSD volumes store only indexes.
The Logical Volumes column displays a status icon for each logical volume managed by the node. The hover text for each icon shows the volume type, volume ID, and, for NFS volumes, the share path and the name of the extended storage pool that contains the NFS volume.
The next table describes the logical volume status icons.
Icon Volume type Volume status Data Available — The volume is available and functioning properly. Data Unavailable — The volume is unavailable, likely because the node is not running. If the volume does not become available soon, contact your authorized HCP service provider. Data Shutting down — The volume is shutting down and is no longer accessible. Data Broken — The volume is experiencing errors or has failed and requires replacement. Contact your authorized HCP service provider. Data Migrating — The Migration service is migrating data off the volume. Database Available — The volume is available and functioning properly. Database Degraded — The volume is experiencing errors or has failed. Contact your authorized HCP service provider. Database Initialized — The volume is started up and accessible. Database Initializing — The volume is starting up but is not yet accessible. Database Migrating — The Migration service is migrating data off the volume. Database Rebuilding — The volume is rebuilding and is therefore inaccessible. Database Unavailable — The volume is unavailable, likely because the node is not running. If the volume does not become available soon, contact your authorized HCP service provider. Index Available — The volume is available and functioning properly. Index Unavailable — The volume is unavailable, likely because the node is not running. If the volume does not become available soon, contact your authorized HCP service provider. Index Initializing — The volume is starting up but is not yet accessible. Index Shutting down — The volume is shutting down and is no longer accessible. Index Broken — The volume is experiencing errors or has failed and requires replacement. Contact your authorized HCP service provider. Index Migrating — The Migration service is migrating data off the volume. Shared Available — The volume is available and functioning properly. Shared Unavailable — The volume is unavailable, likely because the node is not running. If the volume does not become available soon, contact your authorized HCP service provider. Shared Initializing — The volume is starting up but is not yet accessible. Shared Shutting down — The volume is shutting down and is no longer accessible. Shared Broken — The volume is experiencing errors or has failed and requires replacement. Contact your authorized HCP service provider. Shared Migrating — The Migration service is migrating data off the volume. Spindown Available — The volume is spun up, available, and functioning properly. Spindown Spun down — The volume is spun down. Spindown Unavailable — The volume is unavailable, likely because the node is not running. If the volume does not become available soon, contact your authorized HCP service provider. Spindown Initializing — The volume is starting up but is not yet accessible. Spindown Shutting down — The volume is shutting down and is no longer accessible. Spindown Spinning up — The volume is spinning up but is not yet accessible. Spindown Spinning down — The volume is spinning down and is no longer accessible. Spindown Error spinning up — The volume is experiencing errors while in the process of spinning up. Contact your authorized HCP service provider. Spindown Error spinning down — The volume is experiencing errors while in the process of spinning down. Contact your authorized HCP service provider. Spindown Broken — The volume is experiencing errors or has failed and requires replacement. Contact your authorized HCP service provider. Spindown Migrating — The Migration service is migrating data off the volume. NFS (External) Available — The volume is mounted, available, and functioning properly. NFS (External) Initializing — The volume is starting up but is not yet accessible. NFS (External) Broken — HCP can cannot mount the volume. Possible reasons include the exported share is not configured correctl, or the NFS server is not running on the device. Check the export configuration and verify that the NFS server is running. If the configuration is correct and the NFS server is running, ensure that the device is functioning properly and that the network connecting HCP to the device is healthy.
If this status persists, contact your authorized HCP service provider.
NFS (External) Unavailable — HCP is in the process of mounting, updating, or deleting the volume. If you just created or updated the volume and the volume status does not quickly change to available or broken, try remounting the volume.
If this status persists, contact your authorized HCP service provider for help.
The following information applies to the logical volume display:
- Each node also has a logical volume for the operating system; however, that logical volume is not included in this display.
- For HCP SAIN systems that also have internal storage, this display does not include the logical volumes on the internal drives.
- When a logical volume is removed from a node, the System Management Console might not show the change immediately. Heavy read or write activity causes more access to HCP storage and results in faster detection of the volume removal.
Volume Usage
A graphical representation of the amount of primary storage currently in use compared to the total amount of primary storage that is managed by the node. The Volume Usage column also displays text indicating the total number of bytes of primary storage and the percent of primary storage space that is currently in use.
For each node that was permanently removed from the system, the first column in the display shows Removed.
For each HCP S Series Node associated with the HCP system, the S Series Nodes list on the
page shows:Name
The name of the S Series Node.
Serial Number
The serial number of the HCP S Series Node.
Model
The type of S Series Node. Possible models are:
- S10
- S11
- S30
- S31
Status
The node status. Possible values are:
Normal
The S Series Node is running and has no problems that require attention.
Degraded
The S Series Node has one or more noncritical problems that may require attention.
Critical
The S Series Node has one or more critical problems that require attention.
Unavailable
The S Series Node is either not running, starting up but not yet able to perform functions, or shutting down and no longer able to perform functions. If an S Series Node is unavailable dbecause of a hardware problem, you might be able to determine the cause by reviewing the Hardware Status section on the individual Overview page.
Alerts
None, one, or more icons representing components that are experiencing problems.
Capacity
A graphical representation of the amount of storage that is currently in use compared to the total amount of storage that is on the node. The Capacity column also displays text indicating the total number of bytes of storage and the percent of storage space that is currently in use.