Category Archives: EMC Elect

Dell EMC Unity – Fix for “Domain Controller servers configured for the SMB server are not reachable”. Check Network Connectivity

My workplace has a number of All Flash Unity Arrays in Production, typically used as the “swiss army knife” for storage needs. They have proven to be very solid, well performing units as both block and nas hosts, but there has been a peculiar occurrence of alerts displayed periodically, regarding NAS servers being unable to reach any of the configured… Read more »

Dell EMC Unity – Bulk create Filesystems & NFS/SMB Shares

I’ve been quite impressed by the new UI for the new Unity arrays. The pains of JAVA/Flash annoyances are a thing of the past with the new sleek, smooth interface on board. There are still some things missing however. One of the tasks I had before me was to create a significant amount of filesystems for use with discrete NFS… 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 »

EMC XtremIO PowerShell support – Finally!

EMC have released XIOS version 4.1.10-33 and XMS version 4.2 recently, and although they look like minor point releases, there are some long awaited improvements that I certainly have been pleased with. The first one is a PowerShell support. Readers of this blog will now I’m a big PowerShell guy. I use it for automation, workflows, provisioning…..and loads more. Download… 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 »

EMC Elect 2016 – I’m in, again !

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The 2016 EMC Elect were announced today and  I am very proud to have again been included in this group amongst 71 other industry professionals. (After 700 nominations and 150 finalist) You can read about the program here. WIth the Dell EMC acquisition/merger, 2016 is shaping up to being a very interesting year, where no doubt there will be many twists… Read more »

EMC XtremIO 4.x – AD LDAP Configuration

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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 »