vSAN Scrubber is a background operation at DOM owner. Scrubber performs detection (scrub) and fixing (recover) of checksum and IO errors. Mostly Checksum errors and I/O errors which are seen in vSAN environment is due to medium errors against the physical capacity disks where the data is persisted. These errors don’t …

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VMware had initially launched a fling version called “Cross vCenter Workload Migration Utility” which was used by a lot of VMware administrators/customers to migrate workloads/VMs between two vCenters which are managed individually (not under the same SSO domains). This advanced “Cross-vCenter vMotion”, a.k.a. XVM GUI …

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vSAN hosts reboots when compared to regular ESXi hosts generally take longer due to its log structured system to capture and track all the modifications occurring at the write buffer / Cache Disks, vSAN uses an in-memory table to track changes to the blocks, LBA tables, bitmaps etc. This in memory table is always lost …

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What is Durability Component?, Lets consider a scenario of a three node vSAN cluster, where one of the host is placed in maintenance mode. All the vSAN objects will now be accessible with “Reduced Redundancy” mode which means that any failures that are encountered on the surviving two nodes will lead to data …

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**HCI Mesh ** is one of the new feature that is introduced with vSAN 7 Update 1 release. HCI Mesh provides disaggregation of compute and storage by allowing vSAN customers to share vSAN datastores between two or more clusters. vSAN administrators can setup a relationship between two to five clusters and allow these …

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vSAN 7 Update 1 now gives us high efficiency to this two node “Shared Witness” topology by allowing vSAN administrators to use a single shared witness for up to 64 two node vSAN clusters and hence reduces witness server/appliance footprint/resource usage in the central datacenter. The new UI for the witness appliance …

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This blog article is a feature walkthrough on “vSAN 7 Update1 IOInsight” and understand how this can help us to approach/investigate performance related issues on VMs running on vSAN. IOinsight has been available in the VMware-Flings community market place for quite sometime. vSAN engineering team has now included …

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vSAN 7.0 U1/ vSAN 7 Update1 is one of the biggest release for vSAN in last couple of years, there is a long list of new features that are added/released with this version. This blog article talks briefly on all the important features for vSAN7 Update1 / vSAN 7.0 U1. I will be covering all the features exclusively on …

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In this blog you will see how we upgrade your VxRail cluster to version 7.x. The pre-requisites and approach to upgrade to VxRAIL 7..x has quite few changes when compared to previous versions/releases. Note: VxRail upgrades is usually done through VxRail support over a remote session or thru onsite VxRail Systems …

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