In the last two years I was participating on the many designs, implementations and reviews of the vSphere on IBM/Lenovo Flex System or PureFlex, if you want to call like that. Therefore today I would like to share with you my preferred way of doing it right from vSphere perspective… Continue reading
IBM has released a flash alert regarding a new behavior introduced in vSphere 5.5 Update2 and vSphere 6.0 where VAAI ATS (Atomic Test and Set or in the other words Hardware accelerated locking) is used for heartbeat I/O. http://www-01.ibm.com/support/docview.wss?uid=ssg1S1005201 According to IBM: Due to the low timeout value for heartbeat… Continue reading
Despite being an IBMer I have greater experience with HP servers, mainly because my customers have decided to go the HP path. Nothing wrong with that if you keep the hardware happy, which means you need to have the latest and greatest BIOS and device firmware versions applied. Since we… Continue reading
Network Design Rack Server x3850 X5 with fourteen 1 GbE Network Adapters Welcome, I want to share with you one of my older network design with 1 GbE network adapters. In this example we will speak about IBM System x3850 X5, 4x Xeon 10C E7-8860, 8x Memory Expansion Cards, RAM 64x16GB… Continue reading
Recently I wrote an article about a new VMware fling VM Resource and Availability Service which can be used to simulate failure of one or more ESXi hosts. In this article I’ll describe how to associate the DRS dump with the particular cluster, using the Managed Object Reference ID (MoRef… Continue reading
VMware Horizon 6.1 has been released a week ago, providing a bunch of new features and full support of vSphere 6.0. Here is a list with the main improvements of the new version of the VMware VDI solution: NVIDIA GRID vGPU (shared GPU hardware acceleration) Smart Card for RDS desktops… Continue reading
Daily life becomes our Zen training. — Shunryu Suzuki Citrix XenServer isn’t as popular as ESXi or Hyper-V. But if you already use Citrix products, you should think of Xen because you already have expertise with this vendor. 1. Brief history On 13th January 2015 Citrix released XenServer 6.5, offering a… Continue reading
During the last week I was working with my colleague Nikolay Nikolov on a VDI design solution using IBM FlashSystem storage. The old solution using SSD local disks was experiencing the login time for VDI users up to 4 mins. After case analyzing we found high number of IOPS which was… Continue reading
VMware recently introduced a new VM Resource and Availability Service fling, which helps you to identify the available resources in case of one or more ESXi hosts fail. The output will show how many VMs will be safely restarted, how many of them will be experiencing performance issue and how… Continue reading
vRealize Operations Manager for View is a ‘must have’ in every View based VDI environment. Its capabilities for capacity and performance monitoring are priceless. Any kind of troubleshooting is much more easy when you have a tool like this deployed in your environment. Following my previous articles for Installing/Configuring and View… Continue reading
