DELL ScaleIO – RWBD vs RWTD

Morning! welcome to virtualcloudblog.com and thanks for checking it out. Today, I’ll write this post about DELL ScaleIO, I’ll try to explain the difference between RWBD vs RWTD in ScaleIO Ready nodes. What is RWBD? RWBD  is write back cache Write back caching: this caching technique improves the subsystem’s response time to write requests by allowing the controller to […]

DELL ScaleIO – Increase / Map / Unmap new volume

Hello gents, welcome to virtualcloudblog.com and thanks for checking it out. Today, I’ll write another post about DELL ScaleIO. Today I’ll try to explain how to increase/map/unmap ScaleIO volumes from Vmware perspective. The process is quite simple, similar than other SDS vendors. Steps to increase volume size Go to ScaleIO GUI,  using the admin, admin pass and […]

DELL ScaleIO – Software-Defined Storage

Morning! welcome to virtualcloudblog.com and thanks for checking it out. Today, I’ll write this post about DELL ScaleIO. It’s a Software-defined storage (in advance SDS) which is a key driver of data center transformation. As a data center grade SDS, the enterprise features, availability, performance and flexibility of ScaleIO make it perfect for traditional array consolidation, private cloud/IaaS, […]

VMware – How to upgrade vSphere Data Protection 6

First of all, welcome to virtualcloudblog.com and thanks for checking it out. Today, I’ll show you how to upgrade VMware DAta Protection 6.1 to 6.1.7. which was released 20 February, 2018. New release includes the following VMware and Restores issues: VMware Issues Support for routed / NAT / Firewall / IDS / TSNR between the vSphere Data […]

vSAN – Storage Provider

Buenos dias! Gracias por visitar virtualcloudblog.com; hoy escribo este post relaccionado con vSAN y los Stoarage Providers. Un poco de teoria:  vSAN storage providers are built-in software components that communicate datastore capabilities to vCenter Server. A storage capability typically is represented by a key-value pair, where the key is a specific property offered by the datastore. The value […]

vSAN – Inaccessible Objects

Buenos dias! Gracias por visitar virtualcloudblog.com; hoy escribo este post en Español para ayudar a la comunidad de Hispanohablantes. El Post de hoy esta relaccionado con vSAN y los objetos “inaccessible”. Usar estos comandos bajo vuestra responsabilidad, en caso de duda abrir un caso de soporte con VMWare. Haciendo trabajo proactivo en mi lab he  […]

vSAN – Delete DOM Object

Buenos dias! Gracias por visitar virtualcloudblog.com; hoy escribo este post en Español para ayudar a la comunidad de Hispanohablantes. El Post de hoy esta relaccionado con vSAN y como borrar objetos “inaccessible”. Hoy voy a contaros como BORRAR objetos en nuestra vSAN, os hago un pequeño documento / resúmen. Imaginamos que tenemos objetos “Unassociated” y […]

vCenter – How to upgrade VCSA 6.5U1 to VCSA 6.5U1f

Morning all, First of all, welcome to virtualcloudblog.com and thanks for checking it out. Today, I’ll show you how to upgrade the VCSA from 6.5U1 to 6.5U1f  (build number 7801515). This release patches the vCSA operating system (Photon OS) mainly against two vulnerabilities: bounds-check bypass (Spectre-1, CVE-2017-5753) and rogue data cache load issues (Meltdown, CVE-2017-5754). As […]

vSAN – Which driver ESXi host is using?

Hello all, Today, I’ll show you how to know which driver and version we are using in our ESXs. Connect to the ESXi using SSH. Run the following command to understand which driver host is using.

In our case, the host is using megaraid_perc9. This driver is not supported, so we need to disable […]