CommVault – Upgrade DDB to Transactional Mode

The deduplication databases (DDB) are arguably the most important component in an efficient and fast CommVault environment. If you’ve ever had a Media Agent fail unexpectedly before the DDB’s were able to gracefully shutdown, you’d be well aware the the restore and rebuild times can be very long. In Version 11, there have been improvements made to the DDB architecture,… Read more »

AWS and PowerShell – Let’s be friends Part 1

I first used AWS approximately 4 years ago. At that time, programmatic management of services was not an easy hurdle to jump and required regular ‘feeding & watering’. Naturally, these tools have matured greatly so whatever tool-set you are most comfortable with has a well developed set of features/options available for you to use. These can be referenced and downloaded… Read more »

AWS Solutions Architect Associate: My exam experience.

Happy Easter ! I passed the AWS Solutions Architect Associate exam earlier this month and decided I’d share some thoughts on the exam experience. Preparation  I began planning for this certification at the start of this year, based on the fact I had used various AWS services in various jobs for a few years and set myself a goal to… Read more »

Quick Fix-VMware Workstation- The user did not accept the license agreement by passing EULAS_AGREED=1 on the command line

One of the nice benefits of being a vExpert is the licenses kindly provided to various VMware apps including VMware Workstation. After receiving the codes this year and downloading the latest version, it should have been a simple process to install, right ? Dbl-Click, next, next, next…. ? Moments after confirming the UPGRADE dialog, i was surprised to see a warning;… Read more »

ESXi 5.5 – Automating VMFS UNMAP w/ PowerCLI and PowerShell

With vSphere 6.5 recently released, a nice feature was the automated execution of the UNMAP command against thin provisioned datastores to reclaim space. This requires no user interaction, it’s fully automated for you and can free up significant amounts of space from your datastores. There’s some good information regarding the v6.5 release  on these blogs; ESX Virtualization Vladan Seget VirtualizationIsLife  Anthony… Read more »

VMware DRS rule manipulation using PowerCLI (EMC VPLEX use case) Part 1.

VPLEX is another of my favourite products,  and for good reason. I currently run a Metro cluster underneath a VMware platform that has proven to be super reliable. One important design consideration for this is to ensure that VM’s are configured for site bias. Why ? Glad you asked. In a VPLEX Metro configuration, a VPLEX detach rule is defined… Read more »

ESXi – Removing a stubborn Nexus 1000v VIB

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Happened upon an unusual error while wrestling a Nexus 1000v out of a ESXi 5.1 host. All seemed to progress well, the host was removed from the dvs without issue.  The next step was to remove the Cisco vem VIB from the host in preparation for upgrade. esxcli software vib remove -n cisco-vem-150-esx  (or whatever vib name you are removing… Read more »

EMC VPLEX, RecoverPoint Warning: Failed to retrieve VPLEX management view

Quick post with a quick VPLEX/RecoverPoint fix. (CL & EX) During some regular checking, I noticed that a warning had crept into the VPLEX Management console;     Quick cluster check showed there were no apparent errors; Checking RecoverPoint also showed a warning; There was no issues found, data was still replicating, Journals still ‘journalling’ but alas, cosmetic/display errors can… Read more »

Heads Up ! – EMC VNX2 – Potential Data Unavailability

I’m back from the wilderness ! Whenever I see an EMC ETA with the words “Potential Data Unavailability”, I give it immediate attention. Data. Is. Everything. This hot off the press item is titled “ETA 489936: VNX2: A firmware issue may cause certain solid state drives to become faulted, which may result in data unavailability if the drives are part… Read more »

CommVault v10 SP14 – Issue with Synthetic Full Backups

I recently upgraded my CommCell from v10 SP13 to SP14. As usual, the upgrade was easy. Centrally deployed, no issues. The next set of scheduled fulls kicked off a few days later, and soon after there appeared to be an issue with Synthetic Full backups. In the Job Controller they appeared to be normal. Throughput data was there, there were… Read more »