Adding multiple iSCSI datastores

[drwoodberry]

With the below code, I can currently attach and create a new data store from the following code.

#Create a DataStore from the newly attach NetApp storage

#Get-VMHostStorage $currentHost -RescanAllHba -RescanVmfs

$lunpath = Get-VMHost | Select -First 1 | Get-ScsiLun | Where { $_.Vendor -match "NETAPP"} | Select -First 1

Get-VMHost | Select -first 1 | New-Datastore -Vmfs -Path $lunpath.CanonicalName -Name VMStorage

I have since decided to add a total of three datastores that are presented via iSCSI from my NetApp. I would like to name them ds1,ds2 and ds3. Could someone please help me with the logic on how to loop through these presented disks and create the datastores? I was thinking I could do something like..

#Create a DataStore from the newly attach NetApp storage

#Get-VMHostStorage $currentHost -RescanAllHba -RescanVmfs

$ds = "ds1"

$lunpath = Get-VMHost | Select -First 1 | Get-ScsiLun | Where { $_.Vendor -match "NETAPP"} | Select -First 3

for each ($lunpath)

Get-VMHost | Select -first 1 | New-Datastore -Vmfs -Path $lunpath.CanonicalName -Name $ds + 1

I know this is very rough...but I am not sure. I need to know how to increment the datastore name as well as loop through the presented disks.

Thanks in advance

[LucD]

Perhaps try something like this

#Create a DataStore from the newly attach NetApp storage 

$dsBaseName = "ds"
$esx = Get-VMHost | Select -First 1
$lunpaths = $esx | Get-ScsiLun | where { $_.Vendor -match "NETAPP"} | Select -First 3
1..3 | %{
	New-Datastore -VMHost $esx -Vmfs -Path $lunpaths[$_].CanonicalName -Name ($dsBaseName + $_) -WhatIf
}

The .. operator produces a series from the first to last number. In this case 1,2,3

The name of a datastore is a string. We concatenate the base name with the number.

____________

Blog: LucD notes

Twitter: lucd22

[drwoodberry]

I have tried your suggestion and I am getting a path error. It seems to me that sometimes this works and other times it bombs out. Here is the input and output.

[vSphere PowerCLI] C:\Program Files\VMware\Infrastructure\vSphere PowerCLI> 1..
 | %{ New-Datastore -VMHost $esx -Vmfs -Path $lunpaths[$_].CanonicalName -Name
$dsBaseName + $_) -WhatIf}
What if: Performing operation 'Creating new datastore' on VMHost '192.168.120.5
'
What if: Performing operation 'Creating new datastore' on VMHost '192.168.120.5
'
New-Datastore : Cannot validate argument on parameter 'Path'. The argument is n
ull or empty. Supply an argument that is not null or empty and then try the com
mand again.
At line:1 char:49
+ 1..3 | %{ New-Datastore -VMHost $esx -Vmfs -Path <<<<  $lunpaths[$_].Canonica
lName -Name ($dsBaseName + $_) -WhatIf}
    + CategoryInfo          : InvalidData: (:) [New-Datastore], ParameterBindi
   ngValidationException
    + FullyQualifiedErrorId : ParameterArgumentValidationError,VMware.VimAutom
   ation.VimAutomation.Commands.Host.NewDatastore

[vSphere PowerCLI] C:\Program Files\VMware\Infrastructure\vSphere PowerCLI>

[LucD · Accepted solution]

There was a -WhatIf parameter on the New-Datastore cmdlet to show you what would be done.

To actually create the datastore you need to remove the -WHatIf parameter.

It seems the forum SW again had problems with the square brackets in the lines.

I attach the script.

____________

Blog: LucD notes

Twitter: lucd22

[drwoodberry]

LucD,

Thanks again for all your help. You have been a great resource for me. Your scripting is working for the first two datastores, but the third I am getting the path error. Please see below. Any help on this would be great. You can see on the bottom the disks I am trying to add.

[vSphere PowerCLI] C:\Program Files\VMware\Infrastructure\vSphere PowerCLI> 1..3
 | %{ New-Datastore -VMHost $esx -Vmfs -Path $lunpaths[$_].CanonicalName -Name (
$dsBaseName + $_) }

Name                               FreeSpaceMB      CapacityMB
----                               -----------      ----------
ds1                                     613836          614400
ds2                                     613836          614400
New-Datastore : Cannot validate argument on parameter 'Path'. The argument is n
ull or empty. Supply an argument that is not null or empty and then try the com
mand again.
At line:1 char:49
+ 1..3 | %{ New-Datastore -VMHost $esx -Vmfs -Path <<<<  $lunpaths[$_].Canonica
lName -Name ($dsBaseName + $_) }
    + CategoryInfo          : InvalidData: (:) [New-Datastore], ParameterBindi
   ngValidationException
    + FullyQualifiedErrorId : ParameterArgumentValidationError,VMware.VimAutom
   ation.VimAutomation.Commands.Host.NewDatastore



[vSphere PowerCLI] C:\Program Files\VMware\Infrastructure\vSphere PowerCLI> $lun
paths

CanonicalN ConsoleDeviceName              LunType    CapacityMB MultipathPolicy
ame
---------- -----------------              -------    ---------- ---------------
naa.60a... /vmfs/devices/disks/naa.60a... disk           614478 Fixed
naa.60a... /vmfs/devices/disks/naa.60a... disk           614478 Fixed
naa.60a... /vmfs/devices/disks/naa.60a... disk           614478 Fixed


[vSphere PowerCLI] C:\Program Files\VMware\Infrastructure\vSphere PowerCLI>

[LucD]

My bad, the loop 1..3 provides the values 1,2,3.

But the index into the $lunPaths array should be 0..2 or 0,1,2

Attached a corrected script

____________

Blog: LucD notes

Twitter: lucd22