APIs in Category: DpRelationship
API version 4.0

 
DpRelationshipListInfoIterEnd
DpRelationshipListInfoIterNext
DpRelationshipListInfoIterStart
DpRelationshipModify

These APIs list ONTAP data protection relationships as viewed by the DFM database. The API is intentionally generic so that it represents all forms of data protection: SnapVault, Qtree SnapMirror and Volume SnapMirror. Future data protection protocols will be added To this API as they are developed. Making this API generic shields client applications From some of the syntactic differences between protocols.

For the most part, the APIs are straightforward, outputting a blob of information for each relationship. However, three orthogonal concepts arise:

  • being managed by Protection Manager,
  • being in a Dataset, and
  • being ignored.

SnapVault and SnapMirror have existed for years, and for years, the DFM Backup Manager and Disaster Recovery Manager have managed SnapVault and SnapMirror relationships. DFM is now implementing Protection Manager, which provides unified SnapVault and SnapMirror management. Protection Manager creates, deletes, updates and modifies relationships, but we expect mixed environments and do not want Protection Manager To automatically modify existing SnapVault and SnapMirror relationships. Thus, relationships may be marked as IsDpManaged, meaning Protection Manager has full authority To modify or delete the relationship as needed by the Datasets and protection policies. Relationships not marked as IsDpManaged will not be modified, updated or deleted by Protection Manager.

Protection Manager organizes storage Objects (OSSV Directories, Volumes and Qtrees) into Datasets, which consists of sets of storage Objects linked by a protection Policy (which is a tree structure). It is possible To create Datasets using storage Objects which have pre-existing protection relationships. If a relationship connects two storage Objects in a way which matches the Dataset and Policy configuration, that relationship is considered To be in the Dataset. Note that this only talks about topology and configuration. A relationship might Match a Dataset yet not be managed by Protection Manager. The API user can combine the IsDpManaged and IsInDataset filter flags To find such relationships.

Storage Objects can be marked as IsDpIgnored by Protection Manager. This allows a Protection Manager user To reduce UI clutter by marking certain Objects as uninteresting. These Objects still exist in the DFM database but do not show up in the Protection Manager UI. A relationship may be ignored and managed, not managed and not ignored, or any other combination.

Relationships that have been imported into a Dataset at an earlier time will be marked as IsDpImported so that Protection Manager can distinguish them From relationships that were formed by Protection Manager. Imported relationships will also be marked as IsDpManaged because some operations of Protection Manager require that relationships no longer in a Dataset remain managed.

Should a relationship be relinquished From Protection Manager management it will have both the IsDpManaged as well as the IsDpImported states both set To false.

NetApp Manage ONTAP API version 4.0
 
DpRelationshipListInfoIterEnd (supported) [top]

Ends iteration To list data protection relationships.
Input Name Type
DpRelationshipListInfoIterEnd DpRelationshipListInfoIterEnd
 
Output Name Type
DpRelationshipListInfoIterEndResult DpRelationshipListInfoIterEndResult
 Error Name  Description
 EINVALIDTAG

 
DpRelationshipListInfoIterNext (supported) [top]
Get next few Records in the iteration started by DpRelationshipListInfoIterStart.
Input Name Type
DpRelationshipListInfoIterNext DpRelationshipListInfoIterNext
 
Output Name Type
DpRelationshipListInfoIterNextResult DpRelationshipListInfoIterNextResult
 Error Name  Description
 EINVALIDTAG

 
DpRelationshipListInfoIterStart (supported) [top]
Starts iteration To list data protection relationships. These are SnapVault or SnapMirror relationships formed in order To implement data protection Policy for a Dataset. You can list relationships for a single Policy connection or for a particular Source or destination storage server.
Input Name Type
DpRelationshipListInfoIterStart DpRelationshipListInfoIterStart
 
Output Name Type
DpRelationshipListInfoIterStartResult DpRelationshipListInfoIterStartResult
 Error Name  Description
 EDATABASEERROR
 EINVALIDINPUT
 EOBJECTNOTFOUND

 
DpRelationshipModify (supported) [top]
Modify settings of a SnapVault, Qtree SnapMirror or Volume SnapMirror relationship.
Input Name Type
DpRelationshipModify DpRelationshipModify
 
Output Name Type
DpRelationshipModifyResult DpRelationshipModifyResult
 Error Name  Description
 EACCESSDENIED
 EAPIERROR
 EDATABASEERROR
 EINVALIDINPUT
 EOBJECTNOTFOUND

 
Element definition: DpRelationshipListInfoIterEnd [top]
Ends iteration To list data protection relationships.
Name Type Description
Tag xsd:string
Tag From a previous DpRelationshipListInfoIterStart.

 
Element definition: DpRelationshipListInfoIterEndResult [top]
[none]

 
Element definition: DpRelationshipListInfoIterNext [top]
Get next few Records in the iteration started by DpRelationshipListInfoIterStart.
Name Type Description
Maximum xsd:integer
The Maximum number of entries To retrieve. Range: [0..2^31-1]
Tag xsd:string
Tag From a previous DpRelationshipListInfoIterStart.

 
Element definition: DpRelationshipListInfoIterNextResult [top]
Name Type Description
DpRelationships ArrayOfDpRelationshipInfo
List of SnapVault and SnapMirror relationships.
Records xsd:integer
The number of Records actually returned. Range: [0..2^31-1]

 
Element definition: DpRelationshipListInfoIterStart [top]
Starts iteration To list data protection relationships. These are SnapVault or SnapMirror relationships formed in order To implement data protection Policy for a Dataset. You can list relationships for a single Policy connection or for a particular Source or destination storage server.
Name Type Description
ConnectionId xsd:integer
optional
Identifier of Policy connection. If present, only list relationships protecting this connection of the data protection Policy. If specified, DatasetNameOrId must also be specified. Range: [1..2^31-1]
DatasetNameOrId ObjNameOrId
optional
Name or identifier of Dataset. Relationships protecting any connection of this Dataset are listed.
DestinationId ObjId
optional
Identifier of the destination Qtree, Volume, Aggregate or Storage System. If not present, relationships To all destinations are listed.
DestinationType RelationshipEndpointType
optional
If present, list only relationships where the destination is of the specified Type. If not present, list all relationships.
IncludeDeleted xsd:boolean
optional
If present and true, relationships which are marked as deleted in the database are also returned. Otherwise, deleted relationships are not returned.
IsDpIgnored xsd:boolean
optional
If present and true, only list relationships for which the Source object has been marked as ignored for data protection. If present and false, only list relationships for which the Source object has not been marked as ignored. If not present, list all relationships.
IsDpManaged xsd:boolean
optional
If present and true, only list relationships which are To be managed by Protection Manager. If present and false, only list relationships which are not To be managed by Protection Manager. If not present, list all relationships.
IsInDataset xsd:boolean
optional
If present and true, only list relationships which are in a Dataset. If present and false, only list relationships for which are not in a Dataset. If not present, list all relationships.
IsMigrationRelationship xsd:boolean
optional
If true, only relationships created for migration are returned. If DatasetNameOrId is specified with this flag, the migration relationships for the Members of that Dataset will be returned along with the relationship of the root volume/qtree of the vFiler Unit associated with the root node of the Dataset. It is invalid To specify IsInDataset or ConnectionId fields when is-migraton-relationship is true. If false or not present all relationships will be returned. Default Value is false.
OperationalStatuses ArrayOfOperationalStatus
optional
If specified, the relationships in any of these statuses are only returned.
RelationshipId ObjId
optional
Identifier of relationship To list. If unspecified, all relationships are listed.
RelationshipStates ArrayOfRelationshipState
optional
If specified, the relationships in any of these states are only returned.
RelationshipType RelationshipType
optional
If present, list only relationships of specified Type. If not present, list all relationships.
SourceId ObjId
optional
Identifier of the Source Qtree, OSSV Directory, Volume, Aggregate, Storage System, or OSSV Host. If not present, relationships From all sources are listed.
SourceOrDestinationId ObjId
optional
Identifier of either a Source or a destination object. If empty, all relationships are listed. The Source or destination object must be either a Host, Aggregate, Volume, Qtree, OSSV Directory or DFM Group.
SourceType RelationshipEndpointType
optional
If present, list only relationships where the Source is of the specified Type. If not present, list all relationships.

 
Element definition: DpRelationshipListInfoIterStartResult [top]
Name Type Description
Records xsd:integer
Number which tells you how many items have been saved for future retrieval with DpRelationshipListInfoIterNext. Range: [0..2^31-1]
Tag xsd:string
Tag To be used in subsequent calls To DpRelationshipListInfoIterNext.

 
Element definition: DpRelationshipModify [top]
Modify settings of a SnapVault, Qtree SnapMirror or Volume SnapMirror relationship.
Name Type Description
IsDpImported xsd:boolean
optional
If present and true this relationship will be marked as imported but only if IsDpManaged is also present and true. It is an Error for IsDpImported To be true when IsDpManaged is not present or present and false. If IsDpImported is present and false, clear the IsDpImported flag reguardless of the IsDpManaged being present. If a relationship has the IsDpImported flag set then the relationship will not be cleaned up after a containing Dataset has been deleted unless the fully automatic cleanup mode is active.
IsDpManaged xsd:boolean
optional
If present and true, set the IsDpManaged flag for this relationship. If present and false, clear the IsDpManaged flag for this relationship. If not present, IsDpManaged flag is not changed.

If a relationship has the IsDpManaged flag set, then Protection Manager is allowed To modify the relationship as necessary To make the relationship conform To a data protection Policy. This includes modifying any settings or schedules of the relationship, or deleting the relationship if no longer needed. Protection Manager also has the responsibility of updating the relationship as necessary, either using its own schedules or setting an ONTAP schedule for this relationship.

If the IsDpManaged flag is clear, Protection Manager will not modify, update, or delete this relationship.

RelationshipId ObjId
Identifier of the relationships To be modified.

 
Element definition: DpRelationshipModifyResult [top]
[none]

 
Element definition: ArrayOfDpRelationshipInfo [top]
Name Type Description
DpRelationshipInfo DpRelationshipInfo[]

 
Element definition: ArrayOfOperationalStatus [top]
Name Type Description
OperationalStatus OperationalStatus[]

 
Element definition: ArrayOfRelationshipState [top]
Name Type Description
RelationshipState RelationshipState[]

 
Element definition: ObjId [top]
Identification number (ID) for a DFM object. This typedef is an alias for the builtin ZAPI Type integer. Object IDs are unsigned integers in the range [1..2^31 - 1]. In some contexts, an object ID is also allowed To be 0, which is interpreted as a null Value, e.g., a reference To no object at all.

The ID for a DFM object is always assigned by the system; the user is never allowed To assign an ID To an object. Therefore, an input element of Type ObjId is always used To refer To an existing object by its ID. The ZAPI must specify the object's DFM object Type (e.g. Dataset, Host, DP Policy, etc.). Some ZAPIs allow the object To be one of several different types.

If the Value of an ObjId input element does not Match the ID of any existing DFM object of the specified Type or types, then typically the ZAPI fails with Error code EOBJECTNOTFOUND. A ZAPI may deviate From this general rule, for example, it may return a more specific Error code. In either case, the ZAPI specification must document its behavior.

[none]

 
Element definition: ObjNameOrId [top]
Name or internal ID of a DFM object. This typedef is an alias for the builtin ZAPI Type string. An ObjNameOrId must contain between 1 and 64 characters, and must conform To one of the following formats:
  • It must have the format of an ObjName, or
  • It must be the decimal numeric string form of a positive integer whose Value is in the range [1..2^31 - 1].
Elements of Type ObjNameOrId are used only as inputs To ZAPIs. The Value must Match either the Name or internal ID of an existing DFM object. The ZAPI must specify the object's DFM object Type (e.g. Dataset, Host, DP Policy, etc.). Some ZAPIs allow the object To be one of several different types.

If the format of an ObjNameOrId input element does not conform, or the Value does not Match the Name or ID of an existing object, then generally the ZAPI documents that it fails with Error code EOBJECTNOTFOUND. A ZAPI may return more specific Error codes. In such cases, the ZAPI specification must document its behavior.

If a ZAPI can accept a null Value (e.g. reference To no object at all) for such an element, then the element is declared optional, and the absence of the input element represents a null Value.

[none]

 
Element definition: RelationshipEndpointType [top]
Type of an object at either the Source or destination of a data protection relationship. Values for Source Objects are "ossv_directory", "Volume" or "Qtree". Values for destination Objects are "Volume" or "Qtree".
[none]

 
Element definition: RelationshipType [top]
Type of a data protection relationship. Legal Values are "snapvault", "qtree_snapmirror" and "volume_snapmirror".
[none]

 
Element definition: DpRelationshipInfo [top]
Information about a single SnapVault or SnapMirror relationship. Currently, there are three kinds of relationships: SnapVault, Qtree SnapMirror (QSM) and Volume SnapMirror (VSM).
Name Type Description
DatasetId ObjId
optional
ID of the Dataset this relationship is protecting. Not present if this relationship is not protecting a component of a Dataset.
DatasetName ObjName
optional
Name of the Dataset this relationship is protecting. Not present if this relationship is not a protecting a component of a Dataset.
DeletedBy xsd:string
optional
The user who deleted the relationship.
DeletedTimestamp DpTimestamp
optional
The time and date when the relationship was deleted.
DestinationAggregateId ObjId
optional
DFM object ID of destination Aggregate. If the destination object is a Qtree, this is the ID of the Aggregate containing the Volume that contains the Qtree.
DestinationFullName ObjFullName
Full Name of storage object where this relationship ends.
DestinationHostId ObjId
DFM object ID of destination Host.
DestinationHostName ObjFullName
Fully-qualified domain Name of destination Host.
DestinationId ObjId
DFM Object ID of storage object where this relationship ends.
DestinationName ObjName
Name of storage object where this relationship ends.
DestinationStoragesetId ObjId
optional
DFM object ID of the storage set for the destination for this relationship. This element is only valid for the Query if ConnectionId was supplied.
DestinationType RelationshipEndpointType
Type of the destination storage object. SnapVault and Qtree SnapMirror relationships always terminate at a Qtree. Volume SnapMirror relationships always terminate at a Volume.
DestinationVolumeId ObjId
optional
DFM object ID of destination Volume. If the destination object is a Qtree, this is the ID of the Volume containing that Qtree.
DiscoveredTimestamp DpTimestamp
The time and date when the relationship was discovered.
IsDpIgnored xsd:boolean
True if the Source object for this relationship is being ignored by Protection Manager. See the discussion section for the meaning of "ignoring" Objects.
IsDpImported xsd:boolean
True if this relationship was at some earlier time imported into a Protection Manager Dataset. A relationship may be marked as imported and dp managed and yet not be in a Dataset.
IsDpManaged xsd:boolean
True if this relationship is set To be managed by Protection Manager. See the discussion section for the meaning of "being managed".
IsDpOrphan xsd:boolean
True if this relationship is considered an orphan by Protection Manager. An orphan relationship is a relationship that is managed by Protection Manager and was once part of a Dataset but is no longer contained in a Dataset.
IsDpRedundant xsd:boolean
True if this relationship is considered To be a redundant relationship by Protection Manager. A redundant relationship duplicates the need of a Dataset connection by having it's Source and destination between the same two nodes as another relationship in the same Dataset. It is possible To have more than one redundant relationship in the same Dataset.
IsInDataset xsd:boolean
True if the Source object for this relationship matches a Dataset.

A relationship is considered To Match a data set if:

  • the Source object is a member of a storage set
  • the destination object is a member of a storage set
  • both storage sets are assigned To adjacent nodes of a single Dataset.

If the relationship does not Match the above criteria, it is not considered part of a Dataset.

Lag xsd:integer
Seconds since the completion of the last successful transfer To the destination. This Value is undefined and will be returned as 0 for Unintialized relationshaps. Range: [0..2^31-1]
LagStatus ObjStatus
Lag Status of the relationship Lag versus the DP Policy Lag threshold settings. Possible Values are "unknown", "normal", "warning" and "Error".
OperationalStatus OperationalStatus
Status of the relationship
RelationshipId ObjId
Identifier of the relationship.
RelationshipState RelationshipState
State of the relationship
RelationshipType RelationshipType
Type of the relationship.
SourceAggregateId ObjId
optional
DFM object ID of Source Aggregate. Not present if the Source object is an OSSV Directory.
SourceFullName ObjFullName
Full Name of storage object where this relationship originates.
SourceHostId ObjId
DFM object ID of Source Host.
SourceHostName ObjFullName
Fully-qualified domain Name of Source Host.
SourceId ObjId
DFM object ID of storage object where this relationship originates.
SourceName ObjName
Name of storage object where this relationship originates.
SourceStoragesetId ObjId
optional
DFM object ID of the storage set for the Source for this relationship. This element is only valid for the Query if ConnectionId was supplied.
SourceType RelationshipEndpointType
Type of the Source storage object. SnapVault relationships originate at either a Qtree or OSSV Directory. Qtree SnapMirror relationships originate at a Qtree. Volume SnapMirror relationships originate at a Volume.
SourceVolumeId ObjId
optional
DFM object ID of Source Volume. Not present if the Source object is an OSSV Directory.

 
Element definition: OperationalStatus [top]
Status of the relationship. Possible Values are "idle", "transferring", "pending", "aborting", "migrating", "quiescing", "resyncing", "waiting", "syncing", "in_sync" or "paused".
  • idle: No data is being transferred.
  • transferring: Transfer has been initiated, but has not yet finished, or is just finishing.
  • pending: The secondary storage system cannot be updated because of a Resource issue; the transfer is retried automatically.
  • aborting: A transfer is being aborted and cleaned up.
  • migrating: Valid only in case of 'qtree_snapmirror' or 'volume_snapmirror' relationships.
  • quiescing: The specified Volume or Qtree is waiting for all existing transfers To complete. The destination is being brought into a stable state.
  • resyncing: The specified Volume or Qtree is being matched with data in the common Snapshot copy.
  • waiting: Valid only in case of 'qtree_snapmirror' or 'volume_snapmirror' relationships. SnapMirror is waiting for a new tape To be put in the tape device.
  • syncing: Valid only in case of 'qtree_snapmirror' or 'volume_snapmirror' relationships.
  • in_sync: Valid only in case of 'qtree_snapmirror' or 'volume_snapmirror' relationships.
  • paused: Valid only in case of 'qtree_snapmirror' or 'volume_snapmirror' relationships.
[none]

 
Element definition: RelationshipState [top]
State of the relationship. Possible Values are "uninitialized", "snapvaulted", "snapmirrored", "broken_off", "quiesced", "Source", "unknown" or "restoring"
  • uninitialized: The destination storage Volume or Qtree is not yet initialized or is being initialized.
  • snapvaulted: Valid only in case of 'snapvault' relationships. The relationship is created and the Qtree is a SnapVault secondary destination.
  • snapmirrored: Valid only in case of 'qtree_snapmirror' or 'volume_snapmirror' relationships. The destination Volume or Qtree is in a SnapMirror relationship.
  • broken_off: Valid only in case of 'qtree_snapmirror' or 'volume_snapmirror' relationships. The destination was in a SnapMirror relationship, but a snapmirror break command made the Volume or Qtree writable. This state is reported as long as the base Snapshot copy is still present in the Volume. If the Snapshot copy is deleted, the state is listed as "uninitialized" if the destination is in the /etc/snapmirror.conf filen then the Snapshot copy is no longer listed. A successful snapmirror resync command restores the snapmirrored Status.
  • quiesced: Valid only in case of 'qtree_snapmirror' or 'volume_snapmirror' relationships. SnapMirror is in a consistent internal state and no SnapMirror activity is occurring. In this state, you can create Snapshot copies with confidence that all destinations are consistent. The snapmirror quiesce command brings the destination into this state. The snapmirror resume command restarts all SnapMirror activities.
  • Source: This state is reported when the snapvault Status or snapmirror Status command is run on the primary storage system. When the destination is on another system, its Status is unknown, so the Source Status is reported. In case of 'snapvault' relationships, it also appears if snapvault Status is run on secondary storage systems after the snapvault restore command was run on an associated primary storage system.
  • unknown: The destination Volume or the Volume that contains the destination Qtree is in an unknown state. It might be offline or restricted
  • restoring: Valid only in case of 'snapvault' relationships.
[none]

 
Element definition: DpTimestamp [top]
Seconds since 1/1/1970 in UTC. Range: [0..2^31-1]. This runs out in 2036, so update the API some time before then.
[none]

 
Element definition: ObjFullName [top]
Full Name of a DFM object. This typedef is an alias for the builtin ZAPI Type string. An object full Name conforms To all the rules of an ObjName, except that the full Name may be up To 255 characters long.

DFM creates full names by concatenating an object Name with any parent object names, so as To create a unique Name for an object. The format of full names is as follows:

  • Host full names are the either the fully-qualified domain Name or the IP Address of the Host.
  • Aggregate full names are the Host Name and the Aggregate Name, separated by a colon, e.g. Hostname:aggr0.
  • Volume full names are the Host Name and the Volume Name, separated by ":/", e.g. Hostname:/volume. Note this does not include "/vol". Volume and Aggregate full names are distinguished by the presence of a forward slash after the colon.
  • Qtree full names are the containing Volume full Name and the Qtree Name, separated by a slash, e.g. Hostname:/volume/qtree. The data not contained by any Qtree may be represented by "-", e.g. Hostname:/volume/-.
  • Lun Path full names are either a Volume or Qtree full Name and the LUN Path, separated by a slash, e.g. Hostname:/volume/LUN or Hostname:/volume/qtree/LUN.
  • Network full names are a network Address block in CIDR format, e.g. 1.2.3.0/8.
  • OSSV Directory full names are the OSSV Host Name and the OSSV Path, separated by a colon, e.g. host-lnx:/usr/local or host-w2k:c:/temp
  • Include any others here...
  • Initiator Group full names are Host Name and the initiator Group Name, separated by a colon, e.g. Hostname:igroup.

For any DFM object not listed above, the ObjName and ObjFullName are identical.

[none]

 
Element definition: ObjName [top]
Name of a DFM object. This typedef is an alias for the built in ZAPI Type string. An object Name must conform To the following format:
  • It must contain between 1 and 64 characters.
  • It may start with any character and may contain any combination of characters, except that it may not consist solely of decimal digits ('0' through '9').
  • In some contexts, a Name may be the empty string (""), which is interpreted as a null Value, e.g., a reference To no object at all.
The behavior of a ZAPI when it encounters an Error involving an ObjName input element depends on how the ZAPI uses the input element. Here are the general rules:
  • If the input Name element is used To create a new object with the given Name, or rename an existing object To that Name, and the Name does not conform To the above format, then the ZAPI fails with Error code EINVALIDINPUTERROR. Note that because EINVALIDINPUTERROR is such a common Error code, ZAPI specifications are not required To document cases when they may return it.
  • If the input Name element is used To refer To an existing object with that Name, and there is no object with that Name, then the ZAPI fails with Error code EOBJECTNOTFOUND. Generally the ZAPI specification documents cases when it may return this Error code.
A ZAPI may deviate From these general rules, for example, it may return more specific Error codes. In such cases, the ZAPI specification must document its behavior.

If an input Name element is used To refer To an existing object, then the ZAPI specification must specify which DFM object Type (e.g. data set, Host, DP Policy, etc.) is allowed. Some ZAPIs allow the object To be one of several different types. See the Description of ObjFullName for examples of valid input formats.

Note that there is no requirement that all object names must be unique. However, the names for some specific types of Objects are constrained such that no two Objects of that Type may have the same Name. For example, this constraint applies To Datasets, DP schedules, and DP policies. This means that no two Datasets may have the same Name, but a Dataset may have the same Name as a DP schedule or DP Policy.

In general, object names are compared in a case-insensitive manner. This means that, for example, "MyObject" and "MYOBJECT" are considered To be the same Name for purposes of: creating new Objects, renaming existing Objects, or looking up an object by Name. On the other hand, ZAPIs that return an ObjName generally do not change the capitalization at all. For example, if an object's Name has been set To "MyObject", then list iteration ZAPIs that return the object's Name return it as "MyObject" rather than "MYOBJECT" or "myobject".

ZAPIs that operate on ObjName Values and do not follow these general rules about case sensitivity must document the rules that they do follow.

One important exception To these general rules is that Volumes, Qtrees, OSSV Directories, SRM Paths, Interfaces, FCP Targets and FC switch ports all have case-sensitive names. When looking up Objects of these types by Name, the case must Match the object Name.

[none]

 
Element definition: ObjStatus [top]
A Status Value which can be associated with a DFM object. This typedef is an alias for the builtin ZAPI Type string. The Severity associated with an event has this Type.

Possible Values are: 'unknown', 'normal', 'information', 'unmanaged' 'warning', 'Error', 'critical', 'emergency'.

  • unknown: An object has an unknown Status when it transitions From one state To another. Ideally, an object will have this Status briefly. For example, when an object has been added, but not yet discovered.
  • normal: An object has normal Status when it is working within the Thresholds specified in DFM.
  • information: The information Events are normal occurrences on an object for which you can define alarms.
  • unmanaged: An object is considered To be unmanaged when the login and Password are not set for the storage system or agent.
  • warning: An object has the warning Status when an event related To the object occurred that an administrator should know about. The event will not cause Service disruption.
  • Error: An object has Error Status when it does not cause any Service disruption, but it may affect performance.
  • critical: An object has critical Status when it is still performing, but Service disruption may occur if corrective Action is not taken immediately.
  • emergency: An object is in emergency Status when it stops performing unexpectedly and could lose data.
In some contexts, it is important that severities are ordered (as above). For example, an alarm might be triggered if an event with a given Severity "or worse" occurs. In this example, worse means "after" in the list above.
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