Imagine you are the head of a dynamic IT department, with several people below your role and even more projects and goals to achieve. Now, take a breath, or two, and think. Is your department effective enough to be able to deliver what it is intended to? I’ve been in the exact same situation few... » read more
This was quite a frustrating issue as it appeared all in a sudden, after adding a new domain in our hybrid exchange server. Point is that emails were accepted through mx gateways and were successfully being relayed to our Exchange, then relayed back to mx, creating a weird internal loop, having emails residing in the... » read more
There are times where a virtual machine migration option might be greyed out due to several reasons, including vMotion License or backup tasks that have just recently completed but the relatives entries have not yet been removed from vCenter’s database tables. Fortunately, VMWARE has provided administrators a manual way to remove such entries in order... » read more
It was recently requested by a customer, that all of his (mostly) RHEL servers to be integrated with their AD Forest, in order to be able to control all users accessing these systems, as a security enhancement. So, in order to be able to join a Red Hat System to Active Directory, we’ll start assuming... » read more
First of all, congratulations for deciding to get prepared for this exam. You apparently have lots of guts and determination! To my honest belief, this was a demanding exam that required focus and discipline in order to pass it. I was not confident that I would be able to get a Pass on the first... » read more
There is no objection that VMware tools are an essential module -a suite of utilities that enhances the performance of the virtual machines guest operating system and improves management of the virtual machine. The frustration comes when the deployment or update of the tools goes bad and you end up with the following condition (fits... » read more
During a DR Scenario executed for a client, we encountered a rather classical error, several dismounted datastores that couldn’t be removed from vCenter, because the Storage team was eager to un-present them, without the Systems team to properly dismount them first. Being unable to remove or dismount the datastores, or them, not able to be... » read more
We were recently facing an issue where several SSIS packages failed to execute against a newly created SQL FCI Cluster with DAG and several listeners created, with the following error being received as an output. Login failed. The login is from an untrusted domain and cannot be used with Windows authentication. [CLIENT: xxx.xxx.x.xxx] SSPI handshake... » read more
On a recent SQL migration, we had to obviously move SQL server 2008 R2 databases from one instance on the consolidated server, to another instance on a new SQL FCI of 2016 version. Scripting out and scripting back in the logins, executed smoothly but a thing! A login, scripted in the new SQL server as... » read more
A debate that is common among DBAs and possibly Architects, is whether should an organization use the what-so-called “SQL Instance Stacking” in order to deploy more than one SQL instances under the same OS, usually a Windows Server system. Let’s just see the advantages and disadvantages listed below: Pros Benefits Consolidation as several systems can... » read more