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SQL Server On VMware – Best Practices

One of the problems in organizations that implement SQL Server on a virtual machine is the lack of recognition of the virtualization which leads to the non-optimal implementation of this service on the virtual structure and then causes them to face improper performance. In this post, I want to talk briefly about how to design and implement SQL Server in […]

Zerto Virtual Replication – Reporting

In the latest series of the Zerto configuration series, we will go through how to create and make a report in the Zerto. If you missed the old post of this series, please check the following links. Zerto Virtual Replication – Installation Zerto Virtual Replication – Configuration Zerto Virtual Replication – Failover Zerto Virtual Replication – Reporting Reporting Zerto Virtual […]

Zerto Virtual Replication – Failover

In this post, we will go through the failover test of a virtual machine. If you missed the old post of this series or would like to access the next part of this configuration, please check the following links. Zerto Virtual Replication – Installation Zerto Virtual Replication – Configuration Zerto Virtual Replication – Failover Zerto Virtual Replication – Reporting Failover […]

Zerto Virtual Replication – Configuration

In this post, we will go through the configuration of Virtual Replication Appliance (VRA) and Virtual Protection Group (VPG) and some basic configurations of Zerto Virtual Manager. If you missed the first post of this series or you want to access the next part of this configuration, please check the following links. Zerto Virtual Replication – Installation Zerto Virtual Replication […]

Zerto Virtual Replication – Installation

During a project, I had to work with Zerto virtual replication for the first time (I have worked with SRM but Zerto never!). It was great and valuable and forced me to write some posts about it. In a series of blog posts, I’m going to take you through the quick and complete guide of setting up and configuring Zerto […]

Write Technology in Cache

In this post, I want to briefly describe three types of caches: write-through, write-back, and write-around. The cache is semiconductor memory where data is placed temporarily to reduce the time required to service I/O requests from the host. Write operations with cache provide performance advantages over writing directly to disks. A write operation with cache is implemented in three ways which have […]

Get ESXi Hardware Information with Command

While resting at home, a friend contacted me and said he was looking for hardware information from his servers because he was going to increase the amount of RAM and upgrade the server’s memory to higher size and asked me to help him in order to find the memory information such as empty slot and part number. Their servers are […]

The SSL certificate of STS service cannot be verified

After I replace my new VCSA certificate with embedded PSC, I see the disconnected status in the NSX Manager dashboard in the Lookup Service section. When I try to configure Lookup Service in the NSX Manager I got the following error and after googling I find this KB, as in this KB mentioned, I check the port again but everything […]

Replacing vCenter Server Certificates Rollback at 85%

Today I was replacing VMCA certificates by an ADCS (Active Directory Certificate Service) signed certificate, which everything went well except when I imported my certificate, the procedure stuck at 85 percent and rollbacked. and show you an error with this title. Status : 85% Completed [starting services…]Error while replacing Machine SSL Cert, please see /var/log/vmware/vmcad/certificate-manager.log for more information. When you […]