topic Re: Get Mapped LUNs with ONTAPI in Software Development Kit (SDK) and API Discussions

Get Mapped LUNs with ONTAPI

NASSIM_SEN — Thu, 05 Jun 2025 05:30:00 GMT

Hello everybody,

I want to discover all mapped LUNs (-> Hosts mapping) in 7-mode using ONTAPI.

By calling <lun-map-list-info>, the <path> property must be defined .

<lun-map-list-info>

</lun-map-list-info>

Is there another way to discover the whole mapping without specifying the LUN path for each NetApp query.

Thanks in advance for your feedback.

Client library: manageontap-5.1

Nassim

Re: Get Mapped LUNs with ONTAPI

francoisbnc — Mon, 01 Sep 2014 07:23:45 GMT

Hi Nassim,

If you want only mapped attrib you can use lun-list-info and get the mapped parameter of lun-info.

François

Re: Get Mapped LUNs with ONTAPI

NASSIM_SEN — Mon, 01 Sep 2014 08:42:33 GMT

Hi Francois,

Thanks for your response, I have already used that in lun-list-info responses, and actually, I'm using it..

But regarding the initiators I can't retrieve them with lun-list-info, So I have to execute several queries for each LUN using <lun-map-list-info> --> initiator-groups, it a little bit heavy .

It will be really good if we can list all the initiators with only one request.

Do you have any ideas for this.

Thanks in advance.

Nassim

Re: Get Mapped LUNs with ONTAPI

francoisbnc — Tue, 02 Sep 2014 08:25:17 GMT

Hello Nassim,

To retrieve lunid of mapped LUNs in a project, I used two loops of igroup-list-info and lun-initiator-list-map-info.

lun-list-info and lun-map-list-info work as well but is slow because you have to run lun-map-list-info for each LUNs in loop.

Here an example in powershell

$naigroups = Get-NaIgroup

ForEach ($naigroup in $naigroups)

{

if (!$naigroup.name.StartsWith("via"))

{

#Just use the first initiator in igroup.

$nawwn = $naigroup.Initiators[0]

if ($nawwn)

{

$naluns = Get-NaLunMapByInitiator -Initiator $nawwn

Write-Host "Get information for " $naigroup.Name " with " $naluns.count " lun(s)"

$luncount = 0

ForEach ($lun in $naluns)

{

$luncount+=1

$lunfilerpath = $lun.path

$lunfilerid = $lun.LunId

$lunfilerig = $naigroup.Name

[string]$filername= $filer.Value

$newlun= Newlunfiler $lunfilerpath $lunfilerid $lunfilerig $filername

$global:mylunsfiler+=$newlun

# Debug

# Write-Host "Retrieve LUN information --> " $luncount")" $lunfilerpath":"$lunfilerid

}

Re: Get Mapped LUNs with ONTAPI

NASSIM_SEN — Fri, 05 Sep 2014 13:31:31 GMT

Hi François,

Currently I'm using the same logic in Java, two loops and several queries, but it's really slower when we have a million hosts.

Regards,

Nassim