Category Archives: Storage

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 »

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 »

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 »

EMC RecoverPoint-Increase CG Journal size using GUI or RPCLI

Getting a RecoverPoint environment takes some planning to get right. You’ve diligently calculated your Protection Windows and set the Consistency Groups accordingly so that your RPO’s are safe. Fast forward a few months….. You’ve squeezed more apps in, the rate of change has ramped up. RecoverPoint has told you your “Required Protection Window” value is not being met, and you’ve… Read more »

Dell PowerVault MD3660f – Firmware Upgrade Process

The DELL PowerVault MD series Storage Arrays are solid and reliable units. Whilst I don’t use any for what may be considered “Primary” Storage, I use them for many workloads. Backup targets, Image Respositories, Archives, Unstructured data etc. In a 5 RU form factor, it’s a dense package with over 120TB of usable capacity.            Generally… Read more »

CommVault – The need for speed, pt 1

      No Comments on CommVault – The need for speed, pt 1

Speed and performance is an important capability of a Data Protection solution. Most people logically attribute this to being able to finish all tasks in a defined “window“. I’ve used CommVault for a long time and it’s one of my all time fav’s. It truly does “what it says on the box”.  I’ve also been successful in tuning it effectively… Read more »

EMC XtremIO 4.x – AD LDAP Configuration

      No Comments on EMC XtremIO 4.x – AD LDAP Configuration

Configuring Active Directory (or really LDAP) based authentication for your infrastructure is basically standard fare. Default accounts should always be changed and centralized management and control of access credentials saves you effort over time, and is “Security 101” With that in mind I set about configuring LDAP authentication against an Active Directory on a freshly minted XtremIO 4 cluster, so thought… Read more »