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New in Veeam v11: Hardened Repository – Immutable backups [Part 2]

New in Veeam v11: Hardened Repository – Immutable backups [Part 2]

This post is about a new feature in Veeam Backup&Replication v11: Hardened Repository. This means immutable backups. It will massively increase security on repositories. Read here how it behaves.

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New in Veeam v11: Hardened Repository – Immutable backups [Part 1]

New in Veeam v11: Hardened Repository – Immutable backups [Part 1]

This post is about a great new feature in Veeam Backup&Replication v11: Hardened Repository. This means immutable backups. It will massively increase security on repositories. With immutability enabled, root access is needed to delete or change backup files. Read here how it (just) works and how it behaves.

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Analyse XFS space savings with reflink

Analyse XFS space savings with reflink

When backing up on XFS repositories for example with Veeam Backup&Replication, XFS feature reflink can be used for Fast Cloning. I wrote already a post about checking Microsoft ReFS space savings. Now I want to show some basics to check XFS savings too.

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PowerCLI Script to check if VMs get backed up by Veeam B&R

PowerCLI Script to check if VMs get backed up by Veeam B&R

In this post I share a small PowerShell/PowerCLI script to check if VMs get backed up by Veeam B&R. If you do not run VeeamONE, it can be challenging to check if every VM that should be backed up, is really backed up. For checking this, this script should be helpful.

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Poor SAN transport mode performance

Poor SAN transport mode performance

These days I had to troubleshoot poor VMware vSphere SAN transport mode performance during backup with Veeam. Before SAN mode, NDB transport mode was used. NBD outperformed SAN mode totally!

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Slow VM snapshot deletion on NFS volumes on ESXi hosts

Slow VM snapshot deletion on NFS volumes on ESXi hosts

These days I had to troubleshoot a problem with system time within a VMware vSphere VM. During backup VM freezes for more than 30 seconds. When this happens, system time in VM also stops and resets to current time after the freeze. And this behavior causes massive problems in the application-layer. During troubleshooting we found a very slow VM snapshot deletion on NFS volumes on […]

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Analyse ReFS space savings with Block cloning (example Veeam)

Analyse ReFS space savings with Block cloning (example Veeam)

This post shows three ways to analyse ReFS space savings with Block cloning. And because Veeam Backup&Replication uses this feature massively, I use this backup solution as an example here.

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ESXi storage connection problems after installing a new array

ESXi storage connection problems after installing a new array

I was troubleshooting storage related problems at a customer site for some time. We run into massive ESXi storage connection problems after installing a new array. Interestingly enough problems occurred on already existing storage a few hours after new array was installed. Because searching for root cause took some time, I thought it is worth to share.

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Watch HBA errors in ESXi hosts with PowerCLI

Watch HBA errors in ESXi hosts with PowerCLI

I am in the middle of a troubleshooting scenario. It is about connection problems from ESXi hosts to their storage devices. Normally everything works fine but at from time to time, there are tons of errors on HBAs in hosts. Therefor I want to watch HBA errors in ESXi hosts with PowerCLI.

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VMs are shown with absolute path to vmx file in vCenter

VMs are shown with absolute path to vmx file in vCenter

These days I had to troubleshoot a problem in a vCenter environment. A few VMs shown with absolute path to vmx file in vCenter inventory. Normally this occurs when a ESXi boots with no connection to its previous mounted storage volumes. VMs located on these volumes are shown like this in inventory. But this wasn’t the case here: VMs were running and no host was […]

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