[How To]: ESXi Installation Stopped – partedUtil Failed
partedUtil failed with message : Error: The primary GPT table states that the backup GPT is located beyond the end of disk.
Category: Data Center
[Review]: Veeam Availability Console
What’s Veeam Availability Console? Veeam Availability Console is new product that provided by Veeam for Service Providers. Veeam Availability Console is a FREE cloud-enabled, multi-tenant platform that delivers everything a service provider needs to deploy, manage and monitor their customers’ Veeam environments virtual, physical or cloud-based no matter where they reside. There’s no doubt that Veeam Availability Console is a powerful solution for service providers, but equally powerful for the large, distributed enterprise. Veeam Managed Backup Portal will be replaced with Veeam Availability Console. Requirements Veeam Availability Console can be work with existing Veeam Cloud Connect. Here is the requirements: 64-bit – Windows Server 2008 R2 SP1 / Windows 7 SP1 or later Veeam Backup & Replication 9.5 Update 2 or later Key Features Veeam Availability Console offers the below features: Remote monitoring and management: Start and stop Veeam jobs including backup, replication, backup copy and backup to tape. Remote access to Veeam shell. Email notification. More than 30 predefined alarms Automation Multitenancy Free Download The Veeam Availability Console is available to download at the below link: Veeam Availability Console Read More on Teimouri.Net: Veeam Backup & Replication Best Practices Veeam Endpoint Backup [Review]: Veeam BR – Storage-level Corruption Guard
FLR vs FLB: The Ultimate Guide to Choosing the Right Option for You
There are some types of adapters which installed on HPE servers such as FlexibleLOM, FLR and FLB. We are going to find out that meaning of each type. What’s FlexibleLOM? FlexibleLOM is a standard for HPE network interface cards that using on ProLiant Blade servers and ProLiant Rack Mount servers. LAN-On-Motherboard is an architecture for HPE network interface cards. There is some benefits when FlexibleLOM is installed on HPE servers. The previous server generations (G7 and earlier) shipped with an integrated LOM and if customers needs to another type of NIC, they had to purchase another PCI NIC for the server. This was consuming mezzanine or PCI slots which reduced the flexibility to add other mezzanine cards or PCI cards. What’s FLR? FlexibleLOM for Rack Mount servers that be installed on G8 and newer generations. FlexibleLOM technology uses a custom implementation of the PCIe 3.0 x8 interface. FlexibleLOM technology does not require additional CPU resources over standard LOM architecture and does not occupy a regular PCI slot. What’s FLB? FLB or FlexibleLOM for Blade servers that be installed on G8 and newer generations. It uses PCI Express v2.0 (Gen 2) x8 interface. The FlexibleLOM Blade adapter installs as a daughter...
[Review]: Packet Drop vs Packet Loss – Linux
Actually, Packet Loss occurs when one or more packet can’t reach their destination because of some issue such as link congestion, TCP can detect packet loss and send the packet again (During packet recovery process) but packet loss has impact on users, who are using streaming media application and actually all application that using unreliable protocols such as UDP.
Packet Drop is typically discarding packets on different layers after processing packets and packet drop is one of reasons of data loss in some conditions.
[Review]: HPE Advanced Memory Protection Technologies
HPE offers Advanced Memory Protection (AMP) technologies for HPE ProLiant servers to increasing service availability for critical services. In addition of ECC (Error-Correction Code) and advanced ECC, these technologies are available to configure by system administrators.
Veeam ONE: How to Avoid VM Disk I/O Bottlenecks
Controlling resource usage by the metrics, it’s a key to keep your virtual infrastructure up and optimized and also keep your customer happy. Veeam ONE alarm will help you to controlling the metrics and resources.
Before create the alarms, we should know why I/O is important to us? And what is impact of generating lot of I/O by virtual machines?
[Review]: Veeam BR – Storage-level Corruption Guard
Storage-level Corruption Guard Taking backup from virtual or physical machine is a good solution to protect data and services in an organization also some administrators taking backup form backup files on another storage space, it’s absolutely prefect but not enough! If backup is corrupted during backup session or after that, the source backup and copied files will be corrupted and this is actually big risk because you can’t trust to your backup files. Veeam has a utility to check and validate backups but it should be run manually or as a script after each job, you can read more iformation about this solution on the below post: [Review]: Veeam BR Validator Command-Line Tool Also Veeam BR offers “Sure Backup” feature for checking backup files totally on a isolated environment. In addition to Sure Backup and Validator, Veeam BR has another feature to check backup files automatically at scheduled time. The feature is called “Storage-Level Corruption Guard” How It Works? When a job has finished, storage-level corruption guard will perform a CRC verification for the most recent restore point. It will validate whether the content of the backup chain blocks match the content described within the backup file metadata. If a...
[Review]: Veeam Backup & Replication Best Practices – 9.5 Update
Veeam Backup & Replication Best Practices Veeam Architecture team has released latest guide for administrators about “Veeam Backup & Replication Best Practices” on Gitbook. The guide is including all best practices about Veeam Backup & Replication architecture and backup environment optimization. You can find best practices about Veeam Backup & Replication on the below topics: Architecture Overview Operational Guidelines Applications Proof of Concept Guidelines Each topic has many sub-topics and you’ll find best practices for implementing backup and replication solution on vSphere and Hyper-V environments. The book is available as PDF, ePub and Mobi formats and also you be able to read the contents online. Download The Book The book is available for download on the below links: PDF ePub Mobi Also as I mentioned, the book is available for online reading on the below link: Online Reading
[How To]: Access to Shell via VI or VIM Editor
Shell Access via VI or VIM Why do you need to access shell via VI or VIM? A: sometimes, you have to copy result of a commands and paste those results to editor. For example, you are configuring SCSI devices as DM-Multipath devices, you have to run some commands like “multipath -l” for see “WWID” of specific device and add the “WWID” to “multipath.conf”. As simple solution, you can run another ssh session and run the command on this session, then copy and paste the result. But I think, there is another good way to do it. You can access to shell via VI or VIM editor and do your job! But how to? How to Access Shell via VI or VIM? Run VI or VIM command to open the editors and start to edit your file. For accessing to shell, you must run the below command within VI or VIM: :shell Or this command: :sh Then you will access to shell and the editor is still open. The shell is opened for your temporary, so you must have access to editor again. Press Ctrl+D or type “exit” and hit Enter for return back to the editor.
[How To]: Linux tac Command – Usage and Examples
Linux tac Command tac command practically is reverse version of cat command. It means, any result in cat command will be reversed by tac command. tac is lesser known and less used command in Linux but I want to show you the command usage and some examples. Usage and Examples tac command has few options same as cat command, we’ll review some of its options at the below. Example 1 Comparison cat and tac outputs. In this example, we have a file with the below content: [root@localhost ~]# cat sample1.txt This is first line. This is second line. This is third line. This is fourth line. Now, print the file’s content by tac: [root@localhost ~]# tac sample1.txt This is fourth line. This is third line. This is second line. This is first line. Example 2 Both tac and cat commands has separator option which one of the most important options and the command is represented by the -s switch, which separates the contents of the file based on a string or a keyword from the file. [root@localhost ~]# cat sample1.txt —1— 1 2 3 —2 A B C —3– a b c [root@localhost ~]# tac –before –regex –separator=^—[0-9]+-*$ sample1.txt —3–...
[How To]: Linux Cat Command – Usage and Examples
Linux Cat Command Cat or “concatenate files and print on the standard output” is a Linux command to print file content on the standard output like screen. This is one of most popular Linux commands. I think that every Linux administrator has executed the below command at least one time 😉 : # cat /var/log/messages So this is actually very useful and popular command. Usage and Examples Cat command has few options but has lot of usages. Show file content: If Cat command run without options, it will shows you the content of the file or files. Show multiple files content: You can view content of multiple files by entering more than one file name in command line, see the below example: Create New File: You be able to create new file by Cat command. Run the below command and then enter some strings and when it’s finished hit Enter, if you are end of a line and then Ctrl+D for save the new file. Please consider that existing files will be overwrite by run same command. Join Multiple Files: Joining multiple files to a file is possible by Cat command. Here is an example: # cat file1.txt file2.txt file3.txt > all-files.txt...
How to Resolve “/etc/sysconfig/network – No Such File or Directory” in Linux
Sometimes, you did install Linux on a virtual machine that the virtual machine has no NIC, when installation has been completed, you will face with the below error during “ifdown”, “ifup” or restarting network services
[Review]: Veeam Backup & Replication – PowerShell Extension
Introduction Veeam Backup & Replication – PowerShell Extension Veeam Backup & Replication – PowerShell Extension or Veeam Backup and Replication PowerShell Toolkit is a snap-in to Microsoft Windows PowerShell. The Veeam Backup PowerShell snap-in allows you to do almost all operations that are available in the user interface. Keep in mind that actions performed with PowerShell have the same force as actions performed via Veeam Backup & Replication: for example, if you delete a job with a PowerShell script, the job will be removed from the Veeam Backup & Replication database, and you will not be able to undo changes. You can use it for managing anything in backup server faster than GUI and prepare reports for your BOSS! Requirements You can run Veeam Backup & Replication PowerShell Extension on PowerShell 2 and later. PowerShell 4.0 is recommended for Veeam Backup & Replication 9.5. How To Run Veeam Backup & Replication – PowerShell Extension If you are working on your backup server directly, you can access to PowerShell via Veeam Backup & Replication Console: You can install Veeam Backup & Replication – PowerShell Extension on other Windows machine and connect to remote backup server. Find and execute BPS_x64.msi from the “Backup” folder...
Veeam BR Validator Command-Line Tool: Essential Tool for Validating Veeam Backups
Veeam BR provides an internal tool for checking backup health offline. Backup is a way to keep data safer in any environment but no one can guarantee that the backup file is healthy because there is some reason that backup file can be corrupted during backup or after backup such as storage failure or during backup copy on an external medium. As the backup file health is very important and sometimes administrators have to restore virtual machines after accidentally deletion. Without removing VM data, that is a tool that checks the integrity of backup files. A backup is tested at the file level by the command-prompt CRC check programme Veeam Backup Validator. If backup data were transmitted over a network or if hardware issues happened in a backup storage area, you might need to use this application to determine whether they were damaged. The tool use the checksum method for integrity validation. Every data block in the backup file is given a checksum, which Veeam Backup & Replication adds to the data blocks when it creates a backup of a virtual machine. Data block checksums are recalculated by Veeam Backup Validator, and they are compared to the original checksum values....
First Look at Veeam BR Extractor and All Its Advantages
Introduction To Veeam Backup Extractor Veeam Backup Extractor is a Veeam utility to extract VMs from full backup (VBK) file. Administrators can extract VMs from backup file without installing Veeam Backup & Replication. There is no dependency between the utility and Veeam Backup & Replication, so the utility works as independent utility. Administrators can copy the utility from backup server to another server and run that easily. Note: I didn’t test extract VMs from a backup file which it’s placed on a shared folder. There is two interface for extracting VMs from backup files: The extract utility is located in the installation folder of Veeam Backup & Replication, by default: %PROGRAMFILES%\Veeam\Backup and Replication\Backup. The folder contains three files for the extract utility: Graphical User Interface GUI is available by run Veeam.Backup.Extractor.exe from this path: %PROGRAMFILES%\Veeam\Backup and Replication\Backup Extracting VMs is so simple from backup files by using Veeam.Backup.Extractor.exe, just click on browse button (1), select backup file (2), then select VM from the VMs list and then click Extract to extracting virtual machines from the backup file. Command-Line Utility There is two command-line utility for Windows and Linux that administrators be able to extract VMs from backup file by run the commands. There...
