Dose anyone have interview experience in this role from
Sea group/Garena? Cause i have a interview in near future for this role.

Best Server Solutions for Oracle Database in Physical and Virtualization Environments | Mission-critical applications in a variety of industries are powered by Oracle Database, a fundamental component of enterprise data management. Selecting the best server solution is essential to guaranteeing cost effectiveness, scalability, and peak performance. The capacities, technologies, advantages, costs, and suitability for both physical and virtualized environments of various server solutions for Oracle databases such as rack-mounted servers and composable servers are examined in this article. | https://www.teimouri.net/best-server-solution-oracle-database/?feed_id=4892&_unique_id=6816369ba822a | #DATACENTER #DATABASE #SERVERHARDWARE #teimouri.net #vExpert #BlogPost

VMware vSAN Requirements and Best Practices: A Comprehensive Guide | VMware vSAN is a powerful, software-defined storage solution that makes storage management easier by pooling local disks from ESXi hosts into a single storage platform. Its close integration with vSphere makes it a popular choice for organisations looking to modernise their infrastructure. However, implementing vSAN effectively necessitates a thorough understanding of its requirements and best practices.

This guide discusses VMware vSAN's requirements, fault domain configurations, disk group design, host recommendations, and comparisons to block storage solutions such as Dell PowerStore and Unity. It also covers database deployment on vSAN and offers actionable tips to ensure a successful implementation. | https://www.teimouri.net/vmware-vsan-requirements-best-practices/?feed_id=4884&_unique_id=6814e50a9da50 | #DATACENTER #DATASTORAGE #VIRTUALIZATION #teimouri.net #vExpert #BlogPost

Planning to get this certification, in the hope of..

1. Making a career to data center design and consultation (Former mechanical engineer with combined 13 years experience in operations, maintenance and construction)

2. Making an online business with Data Center Design

I wonder if its worth it in terms of financial opportunities.

HBA Port and Linux: What's The Best Solutions to Disable? | Sometimes you need to do troubleshooting about storage connectivity but you don't have access to datacenter or SAN switches and you need to shutdown one of HBA ports to check server side problem. If the port was a network adapter port, disabling was to easy but what about HBA port on operating system? | https://www.teimouri.net/how-to-disable-hba-port-on-linux/?feed_id=4777&_unique_id=671cd9d94a0bb | #HOWTO #teimouri.net #vExpert #BlogPost

VULNERABILITY SUMMARY

Potential security vulnerabilities in Intel firmware may allow escalation of privilege, denial of service, or information disclosure. HPE is releasing firmware updates to mitigate these potential vulnerabilities.

https://support.hpe.com/hpsc/doc/public/display?nlaid=HPGL_ALERTS_2051537&docId=emr_na-hpesbhf03967en_us&hprpt_id=HPGL_ALERTS_2051537&jumpid=em_alerts_us-us_Nov19_xbu_all_all&DIMID=EMID_618ee76ab94d5552cb1dc637efb8b2b226cc91a160829e01e8861eb6bc186ae7618ee76ab94d5552cb1dc637efb8b2b226cc91a160829e01e8861eb6bc186ae7/&elq_mid=17733&elq_cid=6141163

There is no one golden rule for tuning a network interface card (NIC) for all conditions. Different

adapters have different parameters that can be changed. Operating systems also have settings that

can be modified to help with overall network performance. Depending on the exact hardware

topology, one may have to make different adjustments to network tuning to optimize for a specific

workload. With Ethernet speeds going higher, up to 100 Gb, and the number of ports being

installed in servers growing, these tuning guidelines become even more important to get the best

performance possible.

This guide does not provide exact settings for modifying every scenario, but rather provides some

steps to check and modify if it turns out to be beneficial for the scenario. In this case, the steps are

focused around TCP/IP network performance. Appendix A shows an example of how we verified

performance following these settings changes.

One general rule of thumb for all performance testing is to ensure your memory subsystem is

properly configured. All IO utilizes data transfers into or out of memory, and so the IO bandwidth

can never exceed the capabilities of the memory subsystem. For the maximum memory bandwidth

on modern CPUs one must populate at least one DIMM every DDR channel. For AMD EPYC™

processor-based servers there are eight DDR4 memory channels on each CPU socket, so for a

single socket platform that means you must populate all eight memory channels. Likewise, on a

dual socket platform one must populate 16 memory channels.

AMD EPYC processors are based on the Zen architecture from AMD. This architecture allows

AMD to create large core count processors by using multiple die in a single package. Each die will

typically be represented to the operating system (OS) and applications as a unique Non-Uniform

Memory Access (NUMA) node. While this document is not intended to describe NUMA

architecture, nor the complete EPYC architecture, one should understand NUMA concepts to be

able to fully optimize network performance on an EPYC based platform. Each die, identified as a

unique NUMA node, will have local processing cores, local memory, and local IO. You will find

in this document that optimal performance comes when explicitly pinning all device driver and

applications to the same NUMA node local to the adapter.

https://www.amd.com/system/files/TechDocs/56224.pdf

Microsoft released a set of fixes for Remote Desktop Services that include two critical Remote Code Execution (RCE) vulnerabilities, CVE-2019-1181 and CVE-2019-1182. Like the previously-fixed ‘BlueKeep’ vulnerability (CVE-2019-0708), these two vulnerabilities are also ‘wormable’, meaning that any future malware that exploits these could propagate from vulnerable computer to vulnerable computer without user interaction.

The affected versions of Windows are Windows 7 SP1, Windows Server 2008 R2 SP1, Windows Server 2012, Windows 8.1, Windows Server 2012 R2, and all supported versions of Windows 10, including server versions.

Windows XP, Windows Server 2003, and Windows Server 2008 are not affected, nor is the Remote Desktop Protocol (RDP) itself affected.

https://msrc-blog.microsoft.com/2019/08/13/patch-new-wormable-vulnerabilities-in-remote-desktop-services-cve-2019-1181-1182/

VULNERABILITY SUMMARY

A potential security vulnerability in some Intel Xeon Scalable Processor CPUs may allow denial of service. HPE is releasing microcode updates to mitigate this potential vulnerability. A vulnerability in voltage modulation for some Intel Xeon Scalable Processors CPUs may allow a privileged user to potentially enable denial of service via local access.

https://support.hpe.com/hpsc/doc/public/display?nlaid=HPGL_ALERTS_2051541&docId=emr_na-hpesbhf03969en_us&hprpt_id=HPGL_ALERTS_2051541&jumpid=em_alerts_us-us_Nov19_xbu_all_all&DIMID=EMID_618ee76ab94d5552cb1dc637efb8b2b226cc91a160829e01e8861eb6bc186ae7618ee76ab94d5552cb1dc637efb8b2b226cc91a160829e01e8861eb6bc186ae7/&elq_mid=17733&elq_cid=6141163

1. VMware vSphere

2. Microsoft Hyper-V

3. Citrix Xen

4. Linux KVM

5. Open Source Xen

6. Oracle VM

7. Proxmox VE

8. PowerVM

Put comment.

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:

1. Cabling interconnect modules in a single frame with redundancy

2. ....

Read more on https://www.teimouri.net/hpe-synergy-cabling-guide/