I recently setup a single node Kubernetes cluster on-premise for testing Jira and Confluence Data Center (which I will write a seperate blog later). In this blog, I want to share how I use Glusterfs as the shared storage which supports dynamic volume provisioning. Traditionally, to use persistent volume (PV) in a pod, you have … Continue reading Use Glusterfs for Dynamic Volume Provisioning in Kubernetes
Category: Storage
Use AWS EFS for Kubernetes
Before introducing how to use AWS EFS for Kubernetes, let me recap some terms of Persistent Volumes. PV (Persistent Volume): PV is a piece of storage, it can be NFS, iSCSI, EBS, EFS... The purpose of having PV is to decouple the storage from pod's lifecycle. PVC (Persistent Volume Claim): PVC provides the method for … Continue reading Use AWS EFS for Kubernetes
Nametype in TSM ‘Delete File’ command
Sometimes when deleting a node's file spaces in the TSM, you may see the error ANS8001I Return code 11. This means the specified file spaces can not be found for the node, even you are 100% sure there is no any typos.This is caused the name type of file spaces. You have to choose the right name … Continue reading Nametype in TSM ‘Delete File’ command
High disk latency in Microsoft cluster on ESXi
We have a new Windows 2012 R2 file server cluster running on ESXi 5.0 update 2. My colleague told me that the disk performance is terrible when he tried to use robocopy to migrate some big data to the new clusters. In the resource monitor, the worst disk response time is up to 36,000 ms!! … Continue reading High disk latency in Microsoft cluster on ESXi
ESXi datastore with corrupted partition table
My colleague told me that he always failed to vmotion virtual machines to a particular datastore. The error message does not have much information, it just says the virtual machine files on the destination datastore is not accessible even the vmotion has not started yet.I found some relevant information in the vmkernel log: 2014-03-26T04:36:20.189Z cpu28:6188)NMP: nmp_ThrottleLogForDevice:2318: … Continue reading ESXi datastore with corrupted partition table
Jackie Chen's IT Workshop 