APIs in Category: sis
7-Mode API version 1.15

 
sis-disable
sis-enable
sis-set-config
sis-start
sis-status
sis-stop
These APIs can be used to manage deduplication and compression on flexible volumes. In the following API descriptions, these space saving technologies are collectively referred to as "sis".

A "sis volume" refers to a flexible volume on which deduplication and/or compression has been enabled. It can also refer to volumes where deduplication and/or compression are currently disabled (say, temporarily), but the volume has compressed and/or shared data. Currently, compression can be enabled on a volume, only when deduplication is also enabled on the volume.

A "sis operation" refers to a background operation that is running on a volume to deduplicate and/or compress data in the volume.

In future, the sis APIs may be extended to support other storage entities like aggregates. Hence, all sis APIs accept a "path" argument instead of a volume name.

NetApp Manage ONTAP
 
sis-disable [top]

Disable sis on a volume. If the sis operation is active on the volume, it needs to be stopped by "sis-stop" API before disabling.
Input Name Range Type Description
path string
The full path of the sis volume, /vol/<vol_name>. Only one path can be specified at a time.
 Errno  Description
 EAPIMISSINGARGUMENT
 EONTAPI_EINVAL
 EAPIERROR
 EVOLUMENOTONLINE
 EOBJECTNOTFOUND
 EVSERVERNOTFOUND
 EVSERVER_OP_NOT_ALLOWED
 EINVALIDINPUTERROR
 Vfiler-enabled
 Yes

 
sis-enable [top]
Enable sis on a volume.

On a non-SnapVault secondary volume, the sis operation will be started periodically according to a per-volume schedule. By default, this schedule is sun-sat@0. (Everyday at 0:00 hours) On a SnapVault secondary volume, the sis operation will be kicked off at the end of the SnapVault transfer. This API does not enable compression on the volume. See the "sis-set-config" API for options to enable compression and for modifying the default schedule set on the volume. A sis operation can also be manually started using the sis-start API.

Input Name Range Type Description
path string
The full path of the sis volume, /vol/<vol_name>. Only one path can be specified at a time. The volume must be online to enable sis on the volume.
 Errno  Description
 EAPIMISSINGARGUMENT
 EAPIERROR
 EONTAPI_EINVAL
 EINTERNALERROR
 EVOLUMENOTONLINE
 EOBJECTNOTFOUND
 EVSERVERNOTFOUND
 EVSERVER_OP_NOT_ALLOWED
 EINVALIDINPUTERROR
 Vfiler-enabled
 Yes

 
sis-set-config [top]
Setup or modify sis policy, schedule or options for a volume.
Input Name Range Type Description
enable-compression boolean
optional
Enable compression on the sis volume. If true, compression will be enabled on the sis volume. If false, compression will be disabled on the volume. If the value is not specified compression state will be unchanged.
enable-inline-compression boolean
optional
Enable inline compression on the sis volume. To enable inline compression, compression must be enabled either in this API call or by a previous call to sis-set-config. If true, inline-compression will be enabled on the sis volume. If false, inline-compression will be disabled on the volume. If the value is not specified, inline-compression state will be unchanged.
path string
The full path of the sis volume, /vol/<vol_name>.
schedule string
optional
The schedule string for the sis operation.

The format of the schedule:

day_list[@hour_list] or hour_list[@day_list] or - or auto or manual

The day_list specifies which days of the week the sis operation should run. It is a comma-separated list of the first three letters of the day: sun, mon, tue, wed, thu, fri, sat. The names are not case sensitive. Day ranges such as mon-fri can also be given. The default day_list is sun-sat.

The hour_list specifies which hours of the day the sis operation should run on each scheduled day. The hour_list is a comma-separated list of the integers from 0 to 23. Hour ranges such as 8-17 are allowed. Step values can be used in conjunction with ranges. For example, 0-23/2 means "every two hours". The default hour_list is 0, i.e. midnight on the morning of each scheduled day.

If "-" is specified, no schedule is set. In Data ONTAP Cluster-Mode, policy-name and schedule must not be specified together in the same API call. If schedule is passed, any previous policy-name set on the volume is automatically reset.

The "auto" schedule string means the sis operation will be triggered by the amount of new data written to the volume. The criterion is subject to being changed later.

The "manual" schedule string prevents SIS from automatically triggering any operations and disables change-logging. This schedule string can only be used on SnapVault destination volumes. The use of this schedule is mainly desirable when inline compression is enabled on a SnapVault destination volume and background processing is not necessary.

 Errno  Description
 EAPIMISSINGARGUMENT
 EONTAPI_EINVAL
 EAPIERROR
 EVOLUMENOTONLINE
 EOBJECTNOTFOUND
 EVSERVERNOTFOUND
 EVSERVER_OP_NOT_ALLOWED
 EINVALIDINPUTERROR
 Vfiler-enabled
 Yes

 
sis-start [top]
Start a sis operation on a volume. The volume must have sis enabled, before starting a sis operation. If the sis operation is already active on the volume, this API will fail.
Input Name Range Type Description
delete-checkpoint boolean
optional
If this is "true", the sis operation will delete existing checkpoint and start the sis operation from the beginning. Default Value: "false"
path string
The full path of the sis volume, /vol/<vol_name>. The volume must be online in order to start the sis operation.
queue-operation boolean
optional
If this is "true", the requested sis operation will be queued if a sis operation is already running on the volume, and the running operation is in the fingerprint verification phase. Default Value: "false"
restart-checkpoint boolean
optional
If this is "true", the sis operation will restart from previous checkpoint without checking for validity. This option should be used along with "scan" option. Default Value: "false"
scan boolean
optional
If this is "true", the sis operation will scan the file system to process all the existing data.

The scan will include whatever is enabled on the volume. For example: If compression is not enabled on the volume, the scan will not include compression. This default behavior can be changed by using the run-dedupe-scan and run-compression-scan parameters.

If scan is false only data added since the last sis operation will be processed. Default Value: "false"

 Errno  Description
 EAPIMISSINGARGUMENT
 EONTAPI_EINVAL
 EAPIERROR
 EVOLUMEBUSY
 EVOLUMENOTONLINE
 EDENSE_CONCURRENT_LIMIT
 EOBJECTNOTFOUND
 EVSERVERNOTFOUND
 EVSERVER_OP_NOT_ALLOWED
 EINVALIDINPUTERROR
 Vfiler-enabled
 Yes

 
sis-status [top]
Get Status of a sis volume This API is not optimal for use in Data ONTAP Cluster-Mode systems, and is deprecated. Use sis-get and sis-get-iter APIs for Data ONTAP Cluster Mode systems. This API is still supported for Data ONTAP 7-Mode systems.
Input Name Range Type Description
path string
optional
The full path of the sis volume, /vol/<vol_name>. Only one path can be specified at a time. The volume must be online if not then an error will be returned. If path variable is not used then the status for all online sis volumes in the filer will be returned.
verbose boolean
optional
If set to true the output is detailed. Default Value: "false"
 
Output Name Range Type Description
sis-object dense-status[]
sis status objects returned.
 Errno  Description
 EAPIMISSINGARGUMENT
 EAPIERROR
 EONTAPI_EINVAL
 EVOLUMENOTONLINE
 EOBJECTNOTFOUND
 EVSERVERNOTFOUND
 EVSERVER_OP_NOT_ALLOWED
 EINVALIDINPUTERROR
 Vfiler-enabled
 Yes

 
sis-stop [top]
Abort currently active sis operation on the volume. The sis operation will remain paused and the operation can be resumed by "sis-start", SnapVault transfer, or the scheduler.
Input Name Range Type Description
all-operations boolean
optional
If this is "true", both active and queued sis operation will be stopped. Default Value: "false"
path string
The full path of the sis volume, /vol/<vol_name>.
 Errno  Description
 EAPIMISSINGARGUMENT
 EONTAPI_EINVAL
 EAPIERROR
 EVOLUMENOTONLINE
 EOBJECTNOTFOUND
 EVSERVERNOTFOUND
 EVSERVER_OP_NOT_ALLOWED
 EINVALIDINPUTERROR
 Vfiler-enabled
 Yes

 
Element definition: dense-status [top]
Name Range Type Description
blocks-skipped-sharing [0..2^32-1] integer
optional
Number of blocks not considered for sharing because contiguous duplicate blocks were less than the value set for minimum-blocks-shared. Returned only if verbose option is set.
changelog-used-percent [0..100] integer
optional
Percentage of changelog used. Returned only if verbose option is set.
checkpoint-op-type string
optional
Checkpoint Operation Type. Possible values: "-", "Scan", "Start", "Check","Undo" and "Downgrade" Returned only if verbose option is set. This field is deprecated in Data ONTAP 8.1 and later.
checkpoint-progress string
optional
Checkpoint Stage Progress with information as to which stage of sis is checkpointed and how much data is processed for that stage. For example: 25 MB Scanned, 20 MB Searched, 40 MB (20%) Done, 30 MB Verified. Returned only if verbose option is set. This field is deprecated in Data ONTAP 8.1 and later.
checkpoint-stage string
optional
Checkpoint Stage information. Possible values: "-", "Gathering", "Sorting", "Saving_pass1", "Saving_pass2", "Checking", "Checking_pass1" , "Checking_pass2", "Compress_preproc", "Compressing", "Saving_sharing", "Saving_end", "Unknown_stage" Returned only if verbose option is set. This field is deprecated in Data ONTAP 8.1 and later.
checkpoint-sub-stage string
optional
Checkpoint Sub Stage information. Possible values: "-", "Sort_pass2" Returned only if verbose option is set. This field is deprecated in Data ONTAP 8.1 and later.
checkpoint-time [0..2^63-1] integer
optional
Checkpoint creation timestamp. The value is in seconds since January 1, 1970. Returned only if verbose option is set. This field is deprecated in Data ONTAP 8.1 and later.
is-compression-enabled boolean
optional
compression state of the volume Attributes: non-creatable, non-modifiable
is-inline-compression-enabled boolean
optional
inline compression state of the volume Attributes: non-creatable, non-modifiable
last-operation-begin-timestamp [0..2^31-1] integer
optional
Start timestamp of the last sis operation. The value is in seconds since January 1, 1970. Returned only if verbose option is set.
last-operation-end-timestamp [0..2^31-1] integer
optional
End timestamp of the last sis operation. The value is in seconds since January 1, 1970. Returned only if verbose option is set.
last-operation-error string
optional
A human readable error message of the last sis operation. Present when there was an error. Returned only if verbose option is set. and when there is a valid error.
last-operation-size string
optional
The size of the last sis operation in human readable format. This output element is deprecated in Data ONTAP 8.1. Please use the last-operation-size-bytes output element instead. Returned only if verbose option is set.
last-operation-size-bytes [0..2^63-1] integer
optional
The size in bytes of the last sis operation. Returned only if verbose option is set.
last-operation-state string
optional
Completion status for the last operation. Possible values: "success","failure" Returned only if verbose option is set and when there is last completed operation.
last-success-operation-begin-timestamp [0..2^31-1] integer
optional
Start timestamp of the last successful sis operation. The value is in seconds since January 1, 1970. Returned only if verbose option is set and when there is last successfully completed operation.
last-success-operation-end-timestamp [0..2^31-1] integer
optional
End timestamp of the last successful sis operation. The value is in seconds since January 1, 1970. Returned only if verbose option is set and when there is last successfully completed operation.
logical-data sis-logical-data
optional
This contains logical size attributes of a volume. Returned only if verbose option is set.
minimum-blocks-shared [0..2^32-1] integer
optional
The minimum number of contiguous blocks in a file that will be considered for block sharing. If the number of contiguous duplicate blocks is less than this number, then they won't be considered for sharing. Returned only if verbose option is set.
path string
Volume for which sis information is returned.
progress string
The progress of the current sis operation with information as to which stage is currently in progress and how much data is processed for that stage. For example: 25 MB Scanned, 20 MB Searched, 40 MB (20%) Done, 30 MB Verified.
queued-job-type string
Type of sis operation that is queued for the volume. Possible values: "-", "scan", "start", "check", "downgrade". If "-", then no sis operation is queued for the volume. Returned only if verbose option is set.
schedule string
optional
The schedule for sis operation on the volume. See sis-set-config for the format of the schedule. Returned only if verbose option is set.
stale-fingerprint-percentage [0..100] integer
optional
Percentage of fingerprints that are stale in the fingerprint database. Returned only if verbose option is set.
state string
Possible values: "Enabled", or "Disabled".
status string
Possible values: "Idle", "Initializing", "Active", "Pending", "Undoing" , "Downgrading" or "Disabled"
type string
optional
Possible values: "Regular" or "SnapVault". Any sis volume with Snapvault qtree in it would be marked as Snapvault and all others would be returned as type Regular. Returned only if verbose option is set.

 
Element definition: sis-logical-data [top]
This contains logical size attributes of a volume.
Name Range Type Description
logical-data-limit [0..2^63-1] integer
Dedupe logical data limit in bytes.
logical-data-size [0..2^63-1] integer
The size of logical data in the volume in bytes. This is calculated as [size-saved + size-used + compressed-data bytes].