topic Re: Get-NaVol returns incorrect dedupe setting in Microsoft Virtualization Discussions

Get-NaVol returns incorrect dedupe setting

hugh_kelley — Thu, 05 Jun 2025 06:31:33 GMT

When using the toolkit to review volume status, I get incorrect information about dedupe/sis.

From Powershell

Name State TotalSize Used Available Dedupe FilesUsed

---- ----- --------- ---- --------- ------ -------

BVPC01_DataR online 240.0 GB 84% 39.5 GB False 108

BVPC01_OSR online 240.0 GB 74% 63.3 GB False 110

WVPC01_DataR online 300.0 GB 33% 199.8 GB False 107

WVPC01_OSR online 300.0 GB 67% 99.7 GB True 109

From the filer UI

Name: BVPC01_OSR

Type: Flexible Root Volume? -

FlexClone ? - Containing Aggregate: aggr1

Status: online,raid_dp,sis

Used Capacity: 177 GB Space Guarantee none

% Used: 74% Language: en_US

Total Capacity: 240 GB Total Size: 300 GB

Number of Files: 110 Max Directory Size: 28.2 MB

Has anyone else seen this before?

Re: Get-NaVol returns incorrect dedupe setting

cknight — Fri, 23 Mar 2012 21:05:09 GMT

Hugh, have you ensured that dedupe is enabled on the volume in question?

Re: Get-NaVol returns incorrect dedupe setting

hugh_kelley — Fri, 23 Mar 2012 21:19:27 GMT

Yes, I thought that was what "sis" indicated in the Status field above, but here it is in the UI too.

Re: Get-NaVol returns incorrect dedupe setting

hugh_kelley — Wed, 28 Mar 2012 05:37:41 GMT

Is the toolkit source code available? I'd be happy to browse it and investigate further.

Re: Get-NaVol returns incorrect dedupe setting

cknight — Wed, 28 Mar 2012 19:58:40 GMT

Hugh, the source isn't public, but I can say that the Toolkit doesn't alter the data returned from Data ONTAP. The API XML is parsed directly into the objects that the Toolkit emits. Here's how you can exercise the API directly to inspect the raw data&colon;

PS C:\>$results = Invoke-NaSystemApi "<volume-list-info/>"

PS C:\> $results.results.volumes."volume-info"[0].sis."sis-info"

state : enabled

status : idle

progress : idle for 165:48:27

type : regular

schedule : auto

last-operation-begin : Wed Mar 21 18:00:00 EDT 2012

last-operation-end : Wed Mar 21 18:00:01 EDT 2012

last-operation-size : 26103808

size-shared : 4096

size-saved : 4096

percentage-saved : 0

Re: Get-NaVol returns incorrect dedupe setting

hugh_kelley — Thu, 29 Mar 2012 10:41:23 GMT

Thanks, Clinton. Somehow I'm getting a different (but correct) SIS status today.

Name State TotalSize Used Available Dedupe FilesUsed

BVPC01_DataR online 240.0 GB 84% 39.5 GB False 108

BVPC01_OSR online 240.0 GB 72% 67.8 GB True 110

Nevertheless, it is handy to be able to get at the raw data. Thanks for the tip about Invoke-NaSystemApi. Are those commands, like "<volume-list-info/>", taken from the Manageability SDK?

state : enabled

status : idle

progress : idle for 07:07:43

type : regular

schedule : sun-sat@0

last-operation-begin : Thu Mar 29 00:00:00 ADT 2012

last-operation-end : Thu Mar 29 00:15:55 ADT 2012

last-operation-size : 48383852544

size-shared : 9495826432

size-saved : 30564470784

percentage-saved : 14

Re: Get-NaVol returns incorrect dedupe setting

cknight — Thu, 29 Mar 2012 18:16:18 GMT

Are those commands, like "<volume-list-info/>", taken from the Manageability SDK?

Yes and no. Those "commands" are Data ONTAP APIs, which are defined independent of the SDK. Having the SDK is not required to exercise the Data ONTAP API interface (the PS Toolkit doesn't use the SDK). But the SDK is where you can get the API documentation.