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Increase incremental backup speed by enabling CBT
In a recent VMware environment I was working in, we noticed that our incremental backups was taking a long time (like up to 7-8 hours) to complete. After digging around it was found that VMware actually has a feature built-in since version 4 called Change Block Tracking (CBT). CBT will track any blocks that were changed since the last backup and tag them and stores the information in a -CTK file. The obvious benefit is that now the third party software only backs up the changed block and not the entire VM each time, reducing the amount of data being backed thus speeding up backups and even lowers the CPU utilization on the VM host.
CBT is disabled by default though there are some backup tools that will enable it automatically or you can enable it manually which can easily be done following these steps:
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Upgrade VMware ESXi 5.5 U1 using command line
In case you missed it somehow, VMware released ESXi 5.5 Update 1 this week. In the last update I also used the command line to upgrade my Intel NUC hosts, which worked flawlessly. This time I’ve updated via command line as well and this is how.
VMware vSphere 6.0 Update 1 available
VMware has released vSphere 6.0 Update 1, ESXi 6.0 U1 and updates for several other VMware products:
- VMware vCenter Server 6.0 Update 1 Release notes / Download
- VMware ESXi 6.0 U1 Release notes / Download
- VMware Data Protection 6.1 Update 1 Release notes / Download
- VMware Site Recovery Manager 6.1 Release notes / Download
- VMware vCloud Director 8.0 Release notes / Download
- VMware vRealize Automation 6.2.3 Release notes / Download
- VMware vRealize Operations Manager 6.1.0 Release notes / Download
- VMware vRealize Orchestrator Appliance 6.0.3 Release notes / Download
- VMware vSphere Data Protection 6.1 Release notes / Download
- VMware vSphere Replication 6.1 Release notes / Download
How to unlock vRealize Orchestrator default account
Earlier this month I posted how on how to fix the weak ephemeral Diffie-Hellman key issue in VMware vRealize Orchestrator 6.0.2 appliance. Another issue I’ve ran into is how to unlock vRealize Orchestrator default account. It seems you can lock the account after to many failed attempts but once locked the account does not seem to unlock… or at least for me after waiting more than a couple hours.
Luckily unlocking the vRealize Orchestrator default account is pretty straight forward.
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VMware P2V Permission to perform this operation was denied fix
Just the other day we had a Windows Server 2008 R2 Standard physical server that needed to be P2V’ed, and after trying to use VMware Converter Standalone 6.1.1 we ran into the error message “Permission to perform this operation was denied” after entering the source machine details.
Even after trying to start VMware Converter as “Run as administrator” the error persisted. Below is the workaround we performed to quickly allow us to P2V the physical server.
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VMware Recertification Policy
Starting today, March 10 2014, new VCP certifications must be re-certified within two years of it’s earned date. Anyone who currently has their VCP certification prior to March 10 2013 has until March 10, 2015 to re-certify.
The new policy gives you three options to re-certify:
- Take the current exam for your existing VCP certification solution track. For example, if you are a VCP3, you could take the current VCP5-Data Center Virtualization (VCP5-DCV) exam.
- Earn a new VCP certification in a different solution track. For example, if you are a VCP-Cloud, you could recertify by earning VCP5-Desktop (VCP5-DT) certification.
- Advance to the next level by earning a VMware Certified Advanced Professional (VCAP) certification. For example, if you are a VCP5-DCV you could earn VCAP5-DCA certification.
I can understand why they are doing this but I don’t agree with the changes. As per the announcement if you let your certification expire, “Your certification will be revoked,and you will no longer be entitled to use the certification logo or represent yourself as VMware certified“. Really? You mean everything that was done prior and after taking the exam means nothing?