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root aggregate questions

June 10, 2020, 9:10 pm
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Hi,

I am looking at the aggregates and notice our FAS2650 with two controllers (nodes) having both aggregates named below with just 17.85 GB left (total 368 GB).   Is that the location of where the OS resides?  Will that be enough for an upgrade from 9.2p1 to 9.3p18?

 

root_cmnas01 & root_cmnas02

 

Also under SVMs --> Volumes, there is a volume called cm_svm_root.  Is this a subset of the aggregate above? I am guessing its the root level (\\nas\c$) accessible from a Windows machine.  Can someone confirm.

 

Thanks,

Svho1

 

 

 

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pre-mounting the destination NAS volumes in 9.6P2

June 11, 2020, 10:01 am
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Can anyone tell me the current instructions for NetApp Release 9.6P2

for pre-mounting the destination NAS volumes

 

Here are the older version instructions but the whole section for namespace is missing in 9.6p2 

 

 

Breaking SnapMirror relationships

If a SnapMirror source volume becomes unavailable and you want to access the data from the SnapMirror destination volume, you must break the SnapMirror relationship. Access to the destination volume is changed from data protection (DP) to read/write (RW).

Before you begin

  • The SnapMirror destination volume must be in the quiesced or idle state.
  • The destination volume must be premounted into the destination Vserver namespace.
  • Protocol access, such as CIFS, NFS, and iSCSI, must be configured on the destination Vserver to enable client access.

About this task

You can use the destination volume to serve data while you repair or replace the source, until you can reestablish the original SnapMirror relationship configuration.

SnapMirror relationships are listed and managed from the Vserver that contains the destination volume.

Steps

  1. From the home page, double-click the appropriate storage system.
  2. Expand the Vservers hierarchy in the left navigation pane.
  3. Select the Vserver that contains the destination volume, and then click Protection.

     

     

  4. Select the SnapMirror relationship that you want to break and verify that the Transfer Status column displays either Idle or Quiesced.
    If the relationship needs to be quiesced, click Operations > Quiesce.
  5. Click Operations > Break .
  6. Select the confirmation check box, and then click Break.

     

     

  7. Verify that the Relationship State column displays Broken Off.

     

     

  8. Redirect client applications to the destination volume.
    The procedures for redirecting clients vary depending on the configuration of your environment. See the Data ONTAP documentation for more information.

Result

The SnapMirror relationship is broken. The destination volume type changes from data protection (DP) read-only to read/write (RW). The system stores the base Snapshot copy for the data protection mirror relationship for later use.

After you finish

The best practice is to pre-mount the destination NAS volumes into the destination Vserver namespace as part of your disaster recovery configuration. If this was not done, you need to mount the volumes after breaking the SnapMirror relationship, to ensure that the volumes are accessible on the destination. You mount them into the namespace using the same junction path that the source volume was mounted to in the source Vserver. For details, see the task for mounting FlexVol volumes in the System Manager online Help.

 

https://library.netapp.com/ecmdocs/ECMP1287556/html/GUID-8A3F828F-CD3D-48E8-A171-393581FEB2ED.html

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GUI instructions for NetApp Release 9.6P2

June 11, 2020, 11:31 am
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does anyone have a link for this? 

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Need to disable encryption on a FAS2650

June 11, 2020, 7:15 pm
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We have a FAS2650 running OnTap 9.7 and we are using volume encryption.  We have a FAS2520 that we are trying to SnapVault to, but we can't since that cluster doesn't support encryption.  Unfortunately we need to disable encryption on the FAS2650 but don't know the best way forward.  We have two aggregates and don't have enough disks to create a new non-encrypted aggregate.  Can we just run “storage aggregate modify -aggregate aggregate_name -node node_name -encrypt-with-aggr-key false” on each aggregate to disable encryption or do we have to move all volumes off of an aggregate, run that command, move the volumes back, and then run that command on the other aggregate?

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7mode - snapmirror / snapvault relationships deletion

June 12, 2020, 4:43 am
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hello all,

 

for a 7mode filer [8.2.4P5], how to properly delete individual snapmirror / snapvault relationships ? knowing that this filer is replicating with a CDOT filer version [9.5P2]

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pre-mounting the destination NAS volumes in 9.6p2

June 11, 2020, 10:13 am
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Can anyone tell me the current instructions for NetApp Release 9.6P2

for pre-mounting the destination NAS volumes

 

Here are the older version instructions but the whole section for namespace is missing in 9.6p2 

 

 

Breaking SnapMirror relationships

If a SnapMirror source volume becomes unavailable and you want to access the data from the SnapMirror destination volume, you must break the SnapMirror relationship. Access to the destination volume is changed from data protection (DP) to read/write (RW).

Before you begin

  • The SnapMirror destination volume must be in the quiesced or idle state.
  • The destination volume must be premounted into the destination Vserver namespace.
  • Protocol access, such as CIFS, NFS, and iSCSI, must be configured on the destination Vserver to enable client access.

About this task

You can use the destination volume to serve data while you repair or replace the source, until you can reestablish the original SnapMirror relationship configuration.

SnapMirror relationships are listed and managed from the Vserver that contains the destination volume.

Steps

  1. From the home page, double-click the appropriate storage system.
  2. Expand the Vservers hierarchy in the left navigation pane.
  3. Select the Vserver that contains the destination volume, and then click Protection.

     

     

  4. Select the SnapMirror relationship that you want to break and verify that the Transfer Status column displays either Idle or Quiesced.
    If the relationship needs to be quiesced, click Operations > Quiesce.
  5. Click Operations > Break .
  6. Select the confirmation check box, and then click Break.

     

     

  7. Verify that the Relationship State column displays Broken Off.

     

     

  8. Redirect client applications to the destination volume.
    The procedures for redirecting clients vary depending on the configuration of your environment. See the Data ONTAP documentation for more information.

Result

The SnapMirror relationship is broken. The destination volume type changes from data protection (DP) read-only to read/write (RW). The system stores the base Snapshot copy for the data protection mirror relationship for later use.

After you finish

The best practice is to pre-mount the destination NAS volumes into the destination Vserver namespace as part of your disaster recovery configuration. If this was not done, you need to mount the volumes after breaking the SnapMirror relationship, to ensure that the volumes are accessible on the destination. You mount them into the namespace using the same junction path that the source volume was mounted to in the source Vserver. For details, see the task for mounting FlexVol volumes in the System Manager online Help.

 

https://library.netapp.com/ecmdocs/ECMP1287556/html/GUID-8A3F828F-CD3D-48E8-A171-393581FEB2ED.html

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System Manager defaults to Classic View after installing 9.7P4

June 12, 2020, 9:40 am
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I installed a new A220 with a customer this morning.   It came installed with 9.6P3 and we created the cluster on that version so that I could show him the process to upgrade via System Manager.   After upgrading to 9.7P4 I expected to see the new System Manager look and feel but it defaults to the classic view with the option to switch to the new experience.  Did this change in 9.7P4?   I recently upgraded another customer A220 to 9.7P3 and it defaulted to the new view after the upgrade.

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Note: Perfstat is not supported for ONTAP 9.5 and later??

June 14, 2020, 11:02 pm
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Hi, I was about to download latest version of Perfstat and noticed this on it's overview. 

 

Note: Perfstat is not supported for ONTAP 9.5 and later.

 

My question is, will it work with later ONTAP's? If yes, are there any problems, like degraded performance (I know it might hurt a bit, but this is normal), missing values etc, weird results etc?

 

I haven't tried it on 9.7 but probably will. If there's no perfstat for 9.5 > how do we measure the performance then (ie what tool)?


Cheers,

 

Jari

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can't Delete protection relationship

June 14, 2020, 11:24 pm
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Hi,

Using ONTAP  9.x with two cluster having SVM data protection I can't delete data relationship. 
I get the following erorr message when trying to build a new relationship even though the previous SVM protection is not listed as part of the  "SVM DR Relationships"

Failed to create SVM relationship. Failed to create Vserver relationship information. Reason: Source Vserver "svmXXX" is already in a Vserver DR relationship with another Vserver in this cluster.
 

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Created an SVM in CVO in Azure. Unable to ssh to SVM.

June 15, 2020, 10:31 am
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Created an SVM in CVO in Azure.

Created a lif for the SVM. Lif is enabled for both data and management.

SVM is unlocked. vsadmin username and a password is set.

Ping to the SVM Lif works.

However, unable to ssh to SVM using the same Lif IP.

Any idea what is the issue?

 

We are able to ssh to the Cluster. 

Regards

Abhi

 

 

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one collect connection error

June 16, 2020, 1:03 am
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Hello team,

I try to connect to the ontap cluster or my vcenter with one collect but i receive the following message : "Device is offline or not reachable"

Even both are reachable from web interface and cli so credentials are good.

Can you help me ?

Thanks.

David

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Thin-provisioned LUNs for MS Exchange - Better performance?

June 16, 2020, 7:30 am
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Hello,

 

Does anyone know why TR-4681 (Best Practices Guide for Microsoft Exchange Server Using NetApp SnapCenter) recommends the following?

 

"For optimal storage performance, NetApp recommends thin provisioning and having at least 10% free space available in an aggregate hosting Exchange data."

 

Can someone explain why there is better performance with thin-provisioned LUNs? How better?

 

Regards,

Pedro Rocha

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NetApp OnCommand Unified Manager 7.2p1 with ONTAP 9.3p18

June 16, 2020, 10:46 am
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We are on ONTAP 9.2p1 and looking to upgrade to 9.3p18.  Would OnCommand Unified Manager 7.2p1 continue to work?

 

Thanks,

TT

 

 

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NetApp Volume Encryption

June 17, 2020, 9:46 am
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Hello,

 

We just upgraded from 9.2p1 to 9.3p18 using the non NVE.  We currently don't use that feature yet but if we do, could this be done by choosing the next version with NVE.  We have the FAS2650 unit with dual controllers.

 

Still don't know why I chosen the non NVE :(.

 

TT

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Is there any ndmpcopy support for flexgroups

June 17, 2020, 1:33 pm
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I will need to migrate a lot of data from FlexVols to FlexGroups. Anyone know if there is a twinkle in NetApp’s eye about this?  I understand I can go from a flexvol to a flexgroup, but I need to do it at a branche within the flexvol’s tree. Actually, perhaps two to four thousand branches;  we need to restructure and re-organize data. 

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Preventing suprise removals on host when using remove-nclunmap (data ontap powershell toolkit)

June 18, 2020, 2:14 am
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I have a question regarding the data ontap powershell toolkit. As probably most of you know by now; snapdrive has been quietly put out of order in favor of snapcenter which basically forces us to integrate with snapcenter if we need to do anything related to lun management. 

 

I have been looking into writing a powershell module which would emulate certain functions offered by snapdrive, so we can atleast do our lunmanagement on our w2k19 servers as we don't have snapcenter setup yet.  

 

I have checking into the data ontap powershell toolkit and have been able to recreate most basic functions which snapdrive does; but have run into a little issue regarding disconnecting LUNS connected by iSCSI. 

 

It's relatively easy to make sure that the mappings get removed but it seems the host itself is not happy suddenly not seeing it's disk anymore; basically stalling all storage related functions untill he times out. (you get a suprise removal in this case). 

 

following procedure s used for now: dismount the volume on the host itself first (so it loses it's access path); next remove the mapping by using remove-nclunmap. It sounds logic that he still has issues because after you dismount the volume he still sees this on OS level; but i wonder how i can can actually cover this problem). 

 

Hope you guys can help me out on this one. 

with kind regards

 

 

 

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401 unauthorized error while accessing Rest api URL-Powershell

June 18, 2020, 2:38 am
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Any Idea on resolving these kind of errors
Code
PS C:\Users\administrator.DEMO.000> $UserName ="admin"


$ControllerPassword =ConvertTo-SecureString “Netapp1!” -AsPlainText -Force
$ControllerCredential = New-Object System.Management.Automation.PsCredential($UserName,$ControllerPassword)

$url="
https://192.168.0.71/rest/v1/aggregates?limit=20
"
$a=Invoke-RestMethod -Uri $url -Method Get -Credential $ControllerCredential
$a
$a[0]

 

 

Output
Invoke-RestMethod : Error 401 - Unauthorized
Please go back to the homepage and try again.
At line:10 char:4
+ $a=Invoke-RestMethod -Uri $url -Method Get -Credential $ControllerCredential
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : InvalidOperation: (System.Net.HttpWebRequest:HttpWebRequest) [Invoke-RestMethod], WebExceptio
n
+ FullyQualifiedErrorId : WebCmdletWebResponseException,Microsoft.PowerShell.Commands.InvokeRestMethodCommand
Cannot index into a null array.
At line:12 char:1
+ $a[0]
+ ~~~
+ CategoryInfo : InvalidOperation: (:) [], RuntimeException
+ FullyQualifiedErrorId : NullArray


PS C:\Users\administrator.DEMO.000>

 

 

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Snapshot & SnapMirror/SnapVault

June 18, 2020, 1:15 pm
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I'm pretty new to NetApp and I'm creating a new Snapshot policy on my primary cluster (AFF) and SnapMirror/SnapVault relationships on my DR cluster (FAS). Right now we don't have an official RPO/RTO but I need to get something going. Assuming that we have plenty of space available, does this seem good or maybe a bit excessive?

 

Prod Snapshots
   SSD – 24 hourly, 7 daily, 2 weekly
DR SnapMirror/SnapVault
   SAS – 168 hourly (7 days)
   NL-SAS – 91 daily (13 weeks), 52 weekly (1 year), 36 monthly (3 years)

 

If I need to recover a file that’s past the prod retention, is it simple to recover if from DR? If so then I think I’ll lower my prod retention.

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CIFS drive share consistently stops working after a week

June 19, 2020, 8:36 am
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A Windows server 2016 has a drive mapped to a filer and after a week it disconnects.  Like clockwork, about every 7 days, and it happens every time so I now have to do a pre-emptive reboot of the windows client once a week.  Attempting to reconnect from the windows command line with a  net use command gives the error message “System error 8 has occurred.  Not enough storage is available to process this command”.  A reboot always fixes it.

 

Searching for that error always gives the advice to increase IRPStackSize parameter, but I think that means on the target machine. and if the target machine was a Windows machine, not a NetApp.  We did increase that on the client though, with no change.

 

This all started when the OnTap was upgraded in October 2019.  I'll try to get from what to what, I don't have that info right now.  Before that the same setup ran a year straight with no problems whatsoever.

 

Thanks for any help.

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large files and folder deletion from netapp command

June 19, 2020, 1:28 pm
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Hi

does anyone knows better way to delete a folder inside a share fro example. a is share and it has x,y,z folder. i want to delete a folder y from a from only - how would i can do it by Netapp cli since it is large folder and need some time to delete it .

any commands and method from ontap side only

 

Thanks 

Puru

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