Davoud Teimouri - Virtualization & Datacenter

A technology blog mainly focusing on virtualization and datacenter

Vembu BDR Suite 3.7.0 – Review

What’s Vembu BDR Suite?

Today, data protection and service protection are two important concepts in IT environments. Any company needs tools to protect its data and its business. Also in addition of data protection, companies need to tools to keep their services up always with near zero down time or zero down time. Vembu BDR Suite provides complete, hassle-free, universal Backup and Disaster Recovery (DR) solution for all physical and virtual environments. It features host level backups of VMware and Hyper-V. Vembu BDR Suite also allows granular recovery of files, folders and applications.

Vembu BDR Suite – Editions

Vembu offers two editions of Vembu BDR Suite:

  1. Paid Edition
  2. Free Edition

Free Forever!

The Free Edition of Vembu BDR suite of products contains the mandate features which ensures data protection for both the physical and virtual data center environments. If the organisation is not having any specific backup policy requirement for business continuity and data management environment features like, near continuous data protection with CBT (changed block tracking) incremental backup, VM replication with automated Failover and Failback process, stand-by virtual DR (Quick VM recovery) and Offsite DR, then they can opt for the free edition of Vembu BDR Suite.

Vembu Free Edition
It doesn’t matter that you want to install and use Vembu BDR Suite as paid edition or free edition. There is single installer and if you want to use advanced features, you can buy and install license otherwise you can use free edition after evaluation period.

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CentOS 6.9 – New Release

After announcing new Red Hat Enterprise Linux and Oracle Linux, now CentOS developer team has released new version of the distribution. Actually and as may you know, CentOS created from RHEL source codes same as Oracle Linux and usually new CentOS version will be released after RHEL version.

You can read release announcement on this link: Release Announcement

And find more information about the new release.

Also CentOS 6.9 is available for download as ISO files:

Download links (SHA256, signature, pkglist, mirror list): CentOS-6.9-x86_64-bin-DVD1.iso (3,788MB, torrent), CentOS-6.9-x86_64-LiveDVD.iso (1,930MB, torrent), CentOS-6.9-x86_64-minimal.iso (408MB, torrent), CentOS-6.9-x86_64-netinstall.iso (230MB, torrent).

Read the below posts:

Oracle Linux 6.9 – New Release

New Release – Red Hat Enterprise Linux 6.9

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Oracle Linux 6.9 – New Release

Oracle Linux 6.9

After releasing RHEL 6.9 by Red Hat, Oracle has released Oracle Linux 6.9 at March 28.

The new release including some fixes and also new features. The below features are notable features:

  • Transport Layer Security (TLS) 1.2 support for all system components. Other changes include vsftpd support for TLS 1.2 and auditd support for incremental_async.
  • The cpuid utility is now available. This utility dumps detailed information about CPUs gathered from CPUID instruction and is capable of determining exact CPU models. The cpuid utilty supports Intel, AMD, and VIA CPUs.
  • Improved support when running as a Hyper-V guest.
  • Enhanced SSSD Support for Active Directory.

Oracle Linux 6.9 ships with the following kernel packages:

  • Unbreakable Enterprise Kernel (UEK) Release 4 (kernel-uek-4.1.12-61.1.28.el6uek) for x86-64
  • Unbreakable Enterprise Kernel (UEK) Release 2 (kernel-uek-2.6.39-400.294.3.el6uek) for i386
  • Red Hat Compatible Kernel (kernel-2.6.32-696.el6) for i386 and x86-64

Oracle Linux 6.9 is available for download on Oracle Software Delivery Cloud

Also RPM packages are available on Oracle Linux Yum

Also read the below posts:

New Release – Red Hat Enterprise Linux 6.9

Oracle Linux Yum Server

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Nakivo Backup & Replication – New Release

Nakivo Backup & Replication 7

Today, Nakivo has announced latest release of Nakivo Backup & Replication with lot of new features and improvements.

Nakivo Backup & Replication 7

What’s New

Nakivo Backup & Replication 7 key features are as follows:

  1. Hyper-V Backup And Replication
  2. Supporting VMware vSphere 6.5
  3. Skip Swap Files
  4. Active Directory Integration
  5. Bulk Delete

Read the below posts and Nakivo Backup & Replication 7 home page to find detailed information about the features and improvements:

Nakivo Backup & Replication 7 Beta! Hyper-V Supported Now!

Nakivo Backup & Replication 7 – vSphere 6.5 Support!

Nakivo Backup & Replication 7 – Skip Swap File!


Nakivo Backup & Replication 7 is available for download now and you can use it free for 30 days!

Nakivo Backup & Replication 7 - Download

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New Release – Red Hat Enterprise Linux 6.9

New release of Red Hat Enterprise Linux has been released by Red Hat at 21st March 2017. Red Hat Enterprise Linux 6.9 comes with lot of new features and updates.

Red Hat Enterprise Linux 6.9

New Features

Here is new features and major enhancements introduced in Red Hat Enterprise Linux 6.9:

  1. General Updates
  2. Authentication and Interoperability
  3. Clustering
  4. Compiler and Tools
  5. Directory Server in Red Hat Enterprise Linux
  6. Hardware Enablement
  7. Installation and Booting
  8. Kernel
  9. Networking
  10. Security
  11. Servers and Services
  12. Storage
  13. Virtualization
  14. Red Hat Software Collections

Updated Components

Also here is updated components:

QLogic qla2xxx driver
QLogic ql2xxx firmware
Emulex lpfc driver
iSCSI initiator utils

The release announcement also contains a note about the upcoming change in the product’s support status: “Note that Red Hat Enterprise Linux 6 enters Production Phase 3 on May 10, 2017, meaning that subsequent updates to Red Hat Enterprise Linux 6 will be limited to qualified critical security fixes and business-impacting urgent issues.” See also the release notes for more information. As always, existing RHEL clients can update to this version free of charge, while potential new customers should consider downloading the 30-day evaluation edition of the product’s 7.x branch instead.

Hardware Support

This new release supporting hardware same as previous versions, you can check your hardware before installation on this link: Certified Hardware

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Protecting VM Against Ransomware


Actually, Ransomware is a computer malware and Ransomware will be installed on wide range of devices such as computers, smartphones and wearable devices. Ransomware can attack to data and encrypt data then ask user to pay for decrypt data.

Users may encounter Ransomware in a number of ways. The most common method used by attackers to spread Ransomware is via e-mail as an attached file.


Protecting VM Against Ransomware

Most companies are using VDI solutions to deliver desktop experience to the users and virtual desktops acting same as physical desktop. Even all protection steps are provided for protecting users data such as strong anti-virus, firewall, email malware detection and other ways, attackers will try new way to infect user data and keep data as hostage and ask to pay money.

When users data is encrypted by a Ransomware, administrators can help them by restoring their data from a valid backup, so one of solutions to protecting data is taking backup from them.

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VM Backup Best Practices

Datacenters are going smaller compare to datacenters in past few years because of virtualization revolution. Organizations are deploying their services on virtual servers instead of physical servers and most companies over the world have large virtual farms. But some traditional challenges are still exists such as backup and disaster recovery.

Virtual machine deployment and maintenance is easier than physical servers but administrators have to take backup from machines, files or any important data same as before, nothing changed! Also organizations still needs to recovery site for disaster recovery in other geographical location, all machines should be replicate between the primary and recovery site. Backup solutions are little different in virtual infrastructures with physical infrastructures but backup solution has also backward compatibility in virtualization platforms, means that the backup solutions covers both virtual and physical machines now.

The new backup and recovery solutions still needs to storage space for storing backup files, bandwidth for transfer and computing resources for processing backup jobs. Any backup solution has some best practices and administrators should consider the best practices to achieve best results. Know VM backup best practices are important topics for planning and implementing backup solutions.

Join me to review some of best practices for backup solutions in virtual infrastructures.

Define Backup Strategy

Defining good strategy is first and important step of backup and recovery solutions. Administrators should know:

  1. Should take backup from all virtual machines?
    • No. All virtual machines are not critical for us. Virtual machines should divided to groups and define backup plans according to those groups and their priorities.
  2. On-Site or Off-Site?
    • On-Site backup is a usual backup solution but about mission critical services, but about natural disaster. Off-Site backup and replication solution helps you too keep your services safe and running always.Backup Types
  3. RTO and RPO: Organizations should define their RTO and RPO on their business continuity planning.

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