topic Re: read from multiple filers in Microsoft Virtualization Discussions

read from multiple filers

JSHACHER11 — Thu, 05 Jun 2025 06:03:51 GMT

I am after a script that will provide data from multiple filers

I can use this:

Get-NaVol -Controller (get-content c:\filers.txt)

The problem is that each filer in that list has different credentials. Is there a way to store the credentials in a file and somehow let PoSh read it?

something like:

Connect-NaController -Name (get-content c:\filers.txt) -Credential (get-content c:\credentials.txt)

Thank you

Joel

Re: read from multiple filers

JGPSHNTAP — Wed, 01 May 2013 12:45:19 GMT

Joel

No you can't do that. You need to create credential objects. But, i have to be honest, each controller has a different login? How is that scalable? How many controllers are you talking about?

Also, it's easier to manage your script if you put the filers into a variable and then loop them through a for loop to control the script a little easier in my opinion

$filers = gc c:\temp\filers.txt

$filers | % {

$filer = $_

$c = connect-nacontroller $filer

(script here)

}

Re: read from multiple filers

beam — Wed, 01 May 2013 12:55:25 GMT

The Toolkit provides cmdlets for storing credentials. Check out the following cmdlets:

PS C:\> help *NaCredential

Name Category Synopsis

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

Add-NaCredential Cmdlet Save login credentials for a Data ONTAP controller.

Get-NaCredential Cmdlet List entries in the credentials cache.

Remove-NaCredential Cmdlet Remove saved login credentials for a Data ONTAP controller.

Connect-NaController and Connect-NcController will automatically use the credentials cache. For example, we can add the credentials for 10.61.169.28, then use Connect-NaController to connect without having to provide credentials:

PS C:\> Get-NaCredential 10.61.169.28

PS C:\> Add-NaCredential 10.61.169.28 -Credential root

Name Credential HostUser

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

10.61.169.28 System.Management.Automation.PSCrede...

PS C:\> Connect-NaController 10.61.169.28

Name Address Ontapi Version

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

10.61.169.28 10.61.169.28 1.13 NetApp Release 8.0.1 7-Mode: Wed Jan 5 17:24:41 PST 2011

-Steven

Re: read from multiple filers

JGPSHNTAP — Wed, 01 May 2013 12:57:27 GMT

Ah.. I totally forgot about add-nacredetial to the credential cache.. It's been so long since I used that.. Good catch steve

Re: read from multiple filers

JSHACHER11 — Wed, 01 May 2013 13:32:28 GMT

thanks guys

can we also cache the password or I need to provide it every time it tries to access the filer?

Joel

Re: read from multiple filers

vinith — Thu, 02 May 2013 05:48:42 GMT

Once you connect to a controller using connect-nacontroller in a powershell session, just do add-nacredential after that, no you don't need to provide it everytime to access the filer.

Even if you close the powershell window and re-open it again it would still be cached.

Re: read from multiple filers

JSHACHER11 — Thu, 02 May 2013 05:59:04 GMT

Thanks

"Once you connect to a controller...."

So I need to connect to all the controllers first? I cannot put the passwords in a file and let the script read it when trying to connect?

Re: read from multiple filers

vinith — Thu, 02 May 2013 06:14:33 GMT

Yes you would need to connect to all controllers first and do a "Add-Nacredential" to cache all of them, also let me figure out a way to iterate through all passwords in a txt file and connect, i would update you on that soon.

Re: read from multiple filers

JSHACHER11 — Thu, 02 May 2013 06:51:36 GMT

should be something like this:

$CredsFile = "C:\PowershellCreds.txt"

$password = get-content $CredsFile | convertto-securestring

Re: read from multiple filers

JGPSHNTAP — Thu, 02 May 2013 11:59:59 GMT

No, you can't do that

Let's backstep. How many controllers are you talking about and how many different logins?

Also, like I said in my previous post, unless there is specific business reasons what your doing is not scalable.

What I would recommend is use a standard service account throughout your filers.

Re: read from multiple filers

JSHACHER11 — Thu, 02 May 2013 12:04:29 GMT

Let's say for example that I have 8 filers (4 pairs) and I want some daily reports, snapmirror Lag for example or volumes and aggregates over 90% full. I'm looking for a 'one click' report

Re: read from multiple filers

JGPSHNTAP — Thu, 02 May 2013 12:12:59 GMT

Ah.. that's easy man... We have 200+ filers, so automation is a key for us.

But you have to start small... Look at the report i wrote on volumes and aggrs man.

Start with creating a script service account that is consistent across all your filers. Also, dare i ask, why you have so many logins?