Sergey Sanduliak
Sergey Sanduliak
Sergey is a Technical Support Engineer at StarWind. He is experienced in clustering, networking, and scripting. Adores coffee and traveling.

All posts by this author

Posted by Sergey Sanduliak on May 30, 2018
Take your backup infrastructure security and cost efficiency to the next level with StarWind VTL for Backblaze and Veeam

I would like to introduce you a complex solution that combines backup storage pool, backup software, and ability to offload the backup data to the fast cloud storage. All this functionality works in unison, creating an easy-to-manage and reliable environment for your backups.

Learn More

Posted by Sergey Sanduliak on May 10, 2018
Top 5 solutions to make huge data transferring with AWS a breeze

Regarding the growing demand on the cloud, it’s no problem finding a cloud storage provider. However, there are only few market players that can be considered true leaders of this industry. Amazon is one of these guys, with S3 cloud storage serving a perfect fit for any business regardless of its size. But still, even Amazon’s customers face several challenges during data migration process to S3, especially, when it comes to petabytes.

Learn More

Posted by Sergey Sanduliak on January 3, 2018
What’s Split Brain and how to avoid it like the plague?

In this article, we will discuss the split brain issue, and different approaches to prevent it from happening.

The situation when communication loss between the cluster nodes is caused by network connection problems is called network partition, which can lead to split brain. According to Wikipedia, split brain is a computer term, based on an analogy with the medical split-brain syndrome. It can be a real horror for a system administrator to handle the consequences of a split brain.

A split brain can happen if active nodes lose all synchronization and heartbeat connections between them at the same time and are not able to communicate anymore to define the synchronization state of the partner node. Split brain indicates data or availability inconsistencies originating from the maintenance of two separate data sets with overlap in scope.

split brain syndrome

Learn More

Posted by Sergey Sanduliak on September 26, 2017
Hyper-V VMs on an NFS share on Windows Server 2016 – is that real?

A few years ago, we have tried to place a VM on an NFS share. We used Windows Server 2012 because Hyper-V is a native hypervisor from Microsoft.

Now we have decided to reproduce the experiment on Windows Server 2016. Just because of boundless curiosity 😊

So, we have 2 nodes: S3n11 serves as NFS Fileserver and S3n12 takes the Hyper-V server role.

We will do exactly the same thing as we did before, but this time on Windows Server 2016 on both VMs.

Let’s start!

Hyper-V VMs on an NFS share on Windows Server

Learn More