Re: query not working on SDK 4.1

gasparuben · ‎2012-11-23

hi There,

I most likely doing something wrong but I have started to use NMSDK and it looks to me the query doesnt work, at least as I think it's intended.

I have a C-mode cluster with 90 volumes on it, when I query to get attributes of just one volume using its properties: junction-path and name, I get nevertheless all of them. This is a piece of the code (in perl):

	$nelem = NaElement->new("volume-get-iter");
	$nelem->child_add_string("max-records",100);
	$query = NaElement->new("query");
	$volpath = NaElement->new("volume-id-attributes");
	$volpath->child_add_string("junction-path", $mountpath);
	#$volpath->child_add_string("name","edhp_backup01" );
	$query->child_add($volpath);
	$nelem->child_add($query);
	my $desiredAttrs = NaElement->new("desired-attributes");
	my $desiredAutoSpace = NaElement->new("volume-autosize-attributes");
	my $desiredIdAttr = NaElement->new("volume-id-attributes");
	my $desiredSpace = NaElement->new("volume-space-attributes");
	$desiredAttrs->child_add($desiredAutoSpace);
	$desiredAttrs->child_add($desiredIdAttr);
	$desiredAttrs->child_add($desiredSpace);
	$nelem->child_add($desiredAttrs);

my $out = $server->invoke_elem($nelem);

This give always the 90 volumes. am I missing something?, if I set max-records to 1, I do 90 round trips to get all volumes. The fact is that I never get just one. Name and Junction-path are like primary keys, they should return just one.

Thanks for any advice!

rle · ‎2012-11-26

Please state the ONTAP version.

- Rick -

rle · ‎2012-11-26

Also what is the format of the volume name you are using?

Are you using this API at the cluster or vserver level?

Regards,

- Rick -

gasparuben · ‎2012-11-26

This is how I define my NAserver:

my ($ipaddr, ,$username, $password, $vserver) = @_;

my $server = NaServer->new($ipaddr, 1, 17);

$server->set_style("LOGIN");

$server->set_admin_user($username, $password);

$server->set_transport_type("HTTPS");

$server->set_vserver($vserver);

I also set the vserver. All the volumes are defined for this vserver, called 'dbvs'.

I must say I dont understand the question about the name format. This are the properties of the volume I am trying to retrieve in this example:

cluster01::> vol show -vserver dbvs -volume edhp_backup01

(volume show)

Vserver Name: dbvs

Volume Name: edhp_backup01

Aggregate Name: aggr1_c01n01

Volume Size: 1.05TB

Volume Data Set ID: 1120

Volume Master Data Set ID: 2147484772

Volume State: online

Volume Type: RW

Volume Style: flex

Is Cluster-Mode Volume: true

Is Constituent Volume: false

Export Policy: 10.16.3.0/25

User ID: oracle

Group ID: ci

Security Style: unix

UNIX Permissions: ---rwxr-xr-x

Junction Path: /backup/dbs01/EDHP

Junction Path Source: RW_volume

Junction Active: true

Junction Parent Volume: root_vol

Thanks for your help,

Ruben

gasparuben · ‎2012-11-26

Hi Rick,

I am running Ontap 8.1.1 C-mode

THanks,

Ruben

rle · ‎2012-11-26

Hi Ruben -

I believe the above code is incorrect.

Here is how the XML should look:

<volume-get-iter>

<query>

<volume-attributes>

<volume-id-attributes>

<name>new_school</name>

</volume-id-attributes>

</volume-attributes>

</query>

<desired-attributes>

<volume-attributes>

<volume-export-attributes></volume-export-attributes>

<volume-id-attributes></volume-id-attributes>

<volume-space-attributes></volume-space-attributes>

<volume-state-attributes>

</volume-state-attributes>

</volume-attributes>

</desired-attributes>

</volume-get-iter>

The code above forgot the <volume-attributes>.

I will post some code on my blog at: https://communities.netapp.com/people/rle/blog.

Regards,

- Rick -

rle · ‎2012-11-26

The code is now posted at: https://communities.netapp.com/people/rle/blog.

Regards,

- Rick -

gasparuben · ‎2012-11-27

Thanks Rick!

I test it in a moment. By the way,you get this nice layout of the XML document calling NAelement sprintf function?

Thanks again for your help!