Technical blog: June 2023

Volume Group in Nutanix and Mount in Client iSCSI Initiator Step by Step

What is the Volume Group in Nutanix and How to create? And mount in client or Initiator machines

VGs enable you to separate the data vDisks from the VM's boot vDisk. This separation allows you to create a protection domain that consists only of the data vDisks for snapshots and cloning. In addition, VGs let you configure a cluster with shared-disk access across multiple VMs. Supported clustering applications include Oracle Real Application Cluster (RAC), IBM Spectrum Scale (formerly known as GPFS), Veritas InfoScale, and Red Hat Clustering. To attach the VG to multiple VMs when you use the aCLI, create it with a shared=true attribute. If you use Prism, answer yes when you attach the VG to a second VM. There are two ways to use Nutanix VGs: default VG and VGLB.

Note- : In short we are creating iSCSI disk, that we create in Windows server and allow the initiator to connect the disk and use it as a shared disk for MS Cluster.

Click Table -> Storage

Click Volume Group

Enter Volume Group Name

Description

Click Add New Disk

Drop down and select the Storage Container.

Give the size and click Add

Click Add New Client to allow access to connect this Volume group

Enter client machine IP or IQN

Click Add

You may add multiple clients IP or IQN to connect with VG and use disk as cluster disk.

Click Save

Go to Table -> Storage -> Table and Volume Goup to see newly created Volume Group

Select the Volume to see the summary

I have assigned two initiators

How to Map Volume in client machine

Open iSCSI Initiator

Enter iSCSI provider IP (Nutanix Server Cluster IP)

Click Quick Connect

Refresh the page

Go to Disk management to see mounted disk

Failed to install roles in Windows Server 2019 with error 0x80073701

ISSUE:

Failed to install IIS roles on one Windows Server 2019 with error 0x80073701.

TROUBLESHOOTING:

We ran the scripts sfc /scannow and DISM.exe /Online /Cleanup-Image /Restorehealth to check the system file integrity, from the output of which we noticed the corruptions related to patch KB5014669 and KB5014022.

2023-05-09 09:26:34, Info CBS =================================

2023-05-09 09:26:34, Info CBS Checking System Update Readiness.

2023-05-09 09:26:34, Info CBS

2023-05-09 09:26:34, Info CBS (p) CBS Catalog Missing (n) Package_5472_for_KB5014669~31bf3856ad364e35~amd64~~10.0.1.10

2023-05-09 09:26:34, Info CBS Repair failed: Missing replacement mum/cat pair.

2023-05-09 09:26:34, Info CBS (p) CBS Catalog Missing (n) Package_5477_for_KB5014669~31bf3856ad364e35~amd64~~10.0.1.10

2023-05-09 09:26:34, Info CBS Repair failed: Missing replacement mum/cat pair.

…

2023-05-09 09:26:34, Info CBS (w) CBS Package Index Package Missing 0x80070490 Package_2566_for_KB5014022~31bf3856ad364e35~amd64~~0.0.0.0 Package_2566_for_KB5014022~31bf3856ad364e35~amd64~~10.0.1.14

2023-05-09 09:26:34, Info CBS (w) CBS Package Index Package Missing 0x80070490 Package_2567_for_KB5014022~31bf3856ad364e35~amd64~~0.0.0.0 Package_2567_for_KB5014022~31bf3856ad364e35~amd64~~10.0.1.14

2. As I learned that we have deleted the reg keys for KB5014022 before, we suggested you restore the reg keys or reinstall the package to fix it.

From the CBS log, we noticed that the assembly missing issue is caused by package KB5014669, thus we suggested to remove all the related reg key with script remove-Item -path "HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Component Based Servicing\Packages\*KB5014669*".

2023-05-09 09:34:05, Error CSI 000068ef (F) STATUS_SXS_ASSEMBLY_MISSING #56773556# from CCSDirectTransaction::OperateEnding at index 0 of 1 operations, disposition 2[gle=0xd015000c]

2023-05-09 09:34:05, Error CSI 000068f0 (F) HRESULT_FROM_WIN32(ERROR_SXS_ASSEMBLY_MISSING) #56773398# from Windows::ServicingAPI::CCSITransaction::ICSITransaction_PinDeployment(Flags = 0, a = be61d6ca2ab4dcc4eede90c05a096ade, version 10.0.17763.1790, arch amd64, nonSxS, pkt {l:8 b:31bf3856ad364e35}, cb = (null), s = (null), rid = 'Package_5931_for_KB5014669~31bf3856ad364e35~amd64~~10.0.1.10.5014669-10806_neutral', rah = (null), manpath = (null), catpath = (null), ed = 0, disp = 0)[gle=0x80073701]

2023-05-09 09:34:05, Info CBS Failed to pin deployment while resolving Update: Package_5931_for_KB5014669~31bf3856ad364e35~amd64~~10.0.1.10.5014669-10806_neutral from file: (null) [HRESULT = 0x80073701 - ERROR_SXS_ASSEMBLY_MISSING]

2023-05-09 09:34:05, Info CBS Failed to bulk stage deployment manifest and pin deployment for package:Package_3995_for_KB5023702~31bf3856ad364e35~amd64~~10.0.1.10 [HRESULT = 0x80073701 - ERROR_SXS_ASSEMBLY_MISSING]

RESOLUTION:

1. Restore the reg key related to KB5014022 or re-install the patch KB5014022 to fix the corruption.

2. Remove the package KB5014669 by running remove-Item -path "HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Component Based Servicing\Packages\*KB5014669*" with powershell as admin.

Steps to upgrade NSX-T from 4.0.0 to 4.1.0

You may refer below link to download the next version that you want to upgrade.

https://www.virten.net/vmware/nsx/vmware-nsx-t-release-build-numbers/

System -> Under Lifecycle Management -> Click Upgrade

Select MUB file path that you have downloaded ->

Download the supported MUB file

Upload the file VMware-NSX-upgrade-bundle-4.1.0.2.0.21761719-le.mub

Click Upload

Now .MUB file is getting upload, wait for to complete upload

After Uploading extracting the bundle and verifying compatibility

Now Extracting Upgrade Bundle

Now checking Compatibility Matrix of the Upgrade Bundle

Post all validation completion

Click on Prepare for Upgrade

Accept the License Agreement

Preparing for Upgrade

Click Run Pre Checks

Pre-Check is running

Once Pre Check complete

Click Start Upgrade

Now Upgrade has completed

Now wait for complete the Upgrade

Upgrade completed with new version NSX-T 4.1.0.2.0.21761719

Restore Files and folders, NTFS Permission only using Veeam Backup & Replication

Open Veeam Backup & Replication

Home -> Backup -> Disk

Select File Server Job Name -> Right click on Job Name

Select Restore guest files -> Microsoft Windows

Select the Restore Point

Click Next and follow the instruction -> Browse

Mounting the drives

Select the folder that you want to Restore

Right click on the folder -> Restore (If you want to overwrite the restore files and folders)

Else click on Restore to (If you want to restore files and folder on different location)

Note-: You may also restore Permissions only using the Veeam Backup & Replication.

Schedule back with Excluded disk in Veeam Backup and Replication 12

Once you configure a job with an excluded disk, the excluded disk will not participate in backup.

If still, you want to configure the excluded disk in the restore VM then you can attach the disk from vCenter level.

Edit the VM property and add the existing disk, but before doing this you need to capture the existing disk path.

I have already created a backup job, you may refer Create Backup Job in Veeam Backup and Replication 12 to create a backup job.

Now I am going to modify the Backup Job that I have created.

Right Click on the Job -> Click Edit

Go to Virtual Machines -> Select the Virtual Machine

Click Exclusions

Select VM click on Edit

Select the Disk that you want to Exclude

Once done click Finish

Create Backup Job In Veeam Backup & Replication | Backup Job in VBR

Create Backup Job in Veeam Backup and Replication 12

I am creating a job to schedule backups with default configuration.

In the later document I will schedule backup with excluded Drive and also,

how to take SQL Transaction log backup .

How to create backup Job SQL server of SQL server Using T log

Open Veeam Backup and Replication

Click Home -> Job

Right Click on Backup under Job -> Backup -> Select the backup type that you want to configure

like Virtual Machine, Windows Computer or File Share

I am going to configure Virtual Machine -> Give the Backup Name that you want to configure.

Click Add -> Expend the vCenter from the list and Select the VM that you want to take Backup

Or simply Type VM Name and Search, you will see list of the VMs containing the Name

Select the VM from the list and click Add

Click Next

Select the Backup Repository where you want to keep your backup

Also set the Retention policy to keep full backup longer for Archival purpose

You may configure GRF Retention Policy as well to Keep Weekly Full backup for how long time

Then click next

Click next and Configure the Job Schedule

Click Apply

If you want to run backup job on scheduled Date and Time, then click finish without check mark on

Run the Job when click Finish

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