Category: Data Center

hyper threading SMT 2

Server Hardware

Hyper-Threading vs SMT: Which One has Better Performance?

Join me to review Intel Hyper-Threading and AMD SMT. In the past but not so long, just before 2001 and before design first multi-core CPU, processors had one core. Intel, AMD and others they tried to increase transistors and frequency in processors. Result of one core CPU was processing single thread at time, the thread might not take all CPU time. Multi-Core processors and multi-threading helping to processing more than one task or process at a time. Today, processors have more cores and also have features to doing multi-threading. Intel Hyper-Threading This technology is a form of simultaneous multithreading technology introduced by Intel, while the concept behind the technology has been patented by Sun Microsystems. Architecturally, a processor with Hyper-Threading Technology consists of two logical processors per core, each of which has its own processor architectural state. Each logical processor can be individually halted, interrupted or directed to execute a specified thread, independently from the other logical processor sharing the same physical core. Unlike a traditional dual-processor configuration that uses two separate physical processors, the logical processors in a hyper-threaded core share the execution resources. These resources include the execution engine, caches, and system bus interface; the sharing of resources allows two logical...

VMware Ports and Protocols 0

Virtualization

VMware’s Tool for Find VMware’s Products Ports and Protocols

VMware’s products needs to communicate together or communicate with other components of services via network, administrators must know that components will communicate via which ports and protocols. VMware has provided a tool to find port and protocol of popular VMware’s products which called ” VMware Ports and Protocols”. Currently, you can find ports and protocols which the below products used: vSphere vSAN NSX for vSphere vRealize Network Insight vRealize Operations Manager vRealize Automation Note: The recent versions of the mentioned products and not out of support products. External Links VMware Ports and Protocols

HPE Power 3

Virtualization / Server Hardware

HPE G10 Servers: Best and Optimized Setting for VMware vSphere

Optimizing HPE server configuration is always one of biggest challenges for virtual environments administrators. The administrators always trying to provide best performance by changing configurations on hypervisor, virtual machines or other components or virtual infrastructure. There are best practices which published by server vendors to achieve best performance on their server platform. Server hardware is one most important component in every environment, server provides main power and resource: Computing Resources. Processor and memory and other server’s component made to work almost like as human brain. Some Important Things! Human brain needs consumes about 20 percent of the body’s energy. Consume more energy is equal to more heat in human body. Server components needs energy and cooling, like human body. Energy and cooling needs money. So there is a challenge to keep balance between performance and cost of services in any IT environments. What’s Important About Server Hardware? In fact, processors and cooling system consume most power which provided by power modules. Don’t think about single server, think about hundreds of servers and thousands processors, thousand x 200W! (At least). Best performance has more cost for any environment also needs more maintenance. What’s Best Practices? Best practices are depended to workload...

HPE 0

Server Hardware / How To

Change Administrator’s Password for All HPE C7000 Device Bays

HPE C7000 Blade System using Onboard Administrator (OA) KVM module to manage devices and interconnects in chassis. To manage devices directly, OA will redirect to iLO of each device. OA use single sign-on to logon to iLO administration web page. But each server has own administrator user and the user has default password, so if iLO addresses are reachable via network, it’s better to change default password. Think about two or more C7000 chassis with half high blade servers, changing password on 64 servers would be difficult! Onboard Administrator has builtin tool to configure device bays iLO. HPONCFG can change almost all iLO configuration. HPONCFG is also available for different systems and operating systems. Configuration should be as XML format. Example 1: Change Administrator’s Password The below code will change administrator’s password to what you want, just replace “Y0ur Passw0rd” with your password. I’ve tested it on iLO5 and BL460c G10. If you have empty bays, you should run it again after installing new bade server. Also to run on single bay, just replace “all” with bay number. The code must be run via OA, so you should open SSH session to OA module of each C7000 chassis. Example 2:...

npar 1 1

Server Hardware / Virtualization

Using Network Partitioning (NPAR) in VMware ESXi

Data Center design is changing year by year, before virtualization all servers was physical and data centers were full of devices and cables. Virtualization helped to make data centers smaller and consolidate different workloads in same hardware. Hardware technologies are also helping to achieve this goal. Network Partitioning (NPAR) is one of hardware technologies which helping to reduce cabling, switch devices and use all I/O capacity in data centers. What’s Network Partitioning (NPAR)? NPAR is an operating system and switch agnostic technology that allows customers to reduce the number of I/O adapters required to support different application workloads. Traditional best practices require separate LAN or SAN connections for different aspects of application workloads. Converged Network Adapters already support widely used SAN protocols like Fibre Channel over Ethernet (FCoE) and iSCSI, administrators can already reduce the number of adapters needed for separate protocols, including separate Fibre Channel and Ethernet adapters. With NPAR, these adapters can now partition their network bandwidth further into multiple virtual connections, making one dual-port adapter appear as eight adapters to the operating system for use by the applications. This greatly simplifies the physical connectivity to the server, reduces implementation time, and lowers the acquisition cost of the...

HPE Fast Fault Tolerance 2

Server Hardware

HPE Fast Fault Tolerance vs HPE Advanced ECC Support – Choosing Best Technology!

Memory failure is one of reasons that can be cause of server crash and impact on service availability and performance. Think about a service which including multiple servers, server could be crashed cause of single memory module failure or uncorrectable memory error. Regarding to preventing memory impact of memory errors on services, HPE provides RAS technologies. RAS (reliability, availability, and serviceability) technologies are including: In this post, we’ll compare HPE Fast Fault Tolerance and HPE Advanced ECC Support. Before comparison, let’s find that why we need to memory RAS? Why Memory RAS is needed? Server uptime is still one of the most critical aspects of data center maintenance. Unfortunately, servers can run into trouble from time to time due to software issues, power outages, or memory errors. The three major categories of memory errors we track and manage include correctable errors, uncorrectable errors, and recoverable errors. The determination of which errors are correctable and uncorrectable is completely dependent on the capability of the memory controller. Correctable Errors Correctable errors are, by definition, errors that can be detected and corrected by the chipset. Correctable errors are generally single-bit errors. All HPE servers are capable of detecting and correcting single-bit errors and...

hpe synergy cabling 2

Server Hardware

HPE Synergy Cabling Guide

HPE Synergy is a next‐generation data center architectural option, Composable Infrastructure embraces and extends key concepts and traits from the architectures that have come before it, including converged and hyperconverged systems. I don’t know when but seems that HPE will replace HPE Blade System with HPE Synergy in future. Those who worked with HPE Blade System, will confuse about HPE Synergy configuration. Configuration is very different with Blade System at all. Cabling is one of biggest challenges with HPE Synergy. There is many management connection which should connect to the correct ports. Because HPE Synergy is a composable infrastructure so there are some options to have multi-frame configuration which allows companies to resource expansion and service expansion easily. I recommend that design cabling according to service requirements before initializing new hardware. There are some sample configurations for interconnect connections, stack connections, Image Streamer connections and management: Cabling interconnect modules in a single frame with redundancy Cabling master and satellite interconnect modules in multiple frames (non-redundant) Cabling master and satellite interconnect modules in multiple frames (with redundancy) Cabling a single-frame management ring Cabling a multiframe management ring Cabling a single-frame management ring with HPE Synergy Image Streamer Cabling a three-frame management...

Dell EMC Unity XT 1

Data Storage

What’s Dell EMC Unity XT Storage?

Simplify the path to IT transformation and unlock the full potential of your data capital with the new Dell EMC Unity XT
storage arrays that feature up to 2X more IOPS, more memory, and up to 50% more drives than previous Dell EMC
Unity models. These All-Flash and Hybrid storage systems with dual-active controller architecture and enterprise-class
features are designed for performance, optimized for efficiency with up to 5:1 data reduction, and built to simplify your
multi-cloud journey.

0

Virtualization

What’s New in Proxmox VE 6

Proxmox Server Solutions GmbH, developer of the open-source virtualization management platform Proxmox VE, today released its major version Proxmox VE 6.0. The comprehensive solution, designed to deploy an open-source software-defined data center (SDDC), is based on Debian 10.0 Buster. It includes updates to the latest versions of the leading open-source technologies for virtual environments like a 5.0 Linux kernel (based on Ubuntu 19.04 “Disco Dingo”), QEMU 4.0.0, LXC 3.1.0, Ceph 14.2 (Nautilus), ZFS 0.8.1, and Corosync 3.0.2. Proxmox VE 6.0 delivers several new major features, enhancements, and bug fixes.

Veeam Availability Suite Update 4 0

Backup & Replication

Veeam Backup and Replication 9.5 Update 4b

Veeam has release Veeam Backup and Replication 9.5 Update 4b to resolve issues that reported after release update 4 and 4a. This release is a rollup update, also it’s including some new features and enhancements. Update 4b is a cumulative update, meaning it includes all enhancements delivered as a part of Update 4a.

HPE 2

Free Tools / Server Hardware

What’s HPE RESTful Interface Tool?

Having problems finding a single scripting tool that provides management automation among the server components? Being challenged with many tools, remote management vulnerabilities and scripting limitation? Hewlett Packard Enterprise offers you a single scripting tool called RESTful Interface Tool designed for HPE ProLiant Gen9 & Gen10 Servers with flexible and simpler scripting server automation at scale for rapid deployments to help cut time substantially.

Oracle Secure Global Desktop 0

Virtualization / Desktop Virtualization

Oracle Secure Global Desktop 5.5 for Secure Remote Access to Data and Applications in the Cloud and On Premises

Oracle Secure Global Desktop (SGD) is a web-based solution that allows users to remotely access data and applications in a data center or the cloud. It provides administrators with a single pane of glass to manage secure access to resources with a completely air-gapped, highly secure connection between the client and the data and applications accessed, allowing complete control of which user can access which application and the server it runs on, all through a convenient web interface.

RedHat 0

Operating System

What’s redhat-upgrade-tool?

The redhat-upgrade-tool provides a way to upgrade Red Hat Enterprise Linux 6 systems to Red Hat Enterprise Linux 7. The redhat-upgrade-tool command is a program to collect the information for upgrade and prepare the environment. It includes downloading kernel, and initial ram image, and packages.

1

Virtualization / Operating System

Oracle Linux Virtualization Manager

This new server virtualization management platform can be easily deployed to configure, monitor, and manage an Oracle Linux Kernel-based Virtual Machine (KVM) environment with enterprise-grade performance and support from Oracle. Red Hat did it and developed Red Hat Enterprise Virtualization Manager based on the open source oVirt project .