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
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
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
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
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
In TSM 6.4, there is a new parameter in the VMware backup options : -vmenabletemplatebackups If you want to backup the VMware VM template, you need to add '-vmenabletemplatebackups=yes' in your VMware backup job schedule options. Here is a example: update sched vmware Weekly_full OPTions='-vmfulltype=vstor -vmbackuptype=fullvm -asnodename=DATACENTER-01 -vmprocessvmwithindependent=yes -vmprocessvmwithprdm=yes -vmenabletemplatebackups=yes -domain.vmfull="vmfolder=Weekly-Backup" -MODE=FULL'
Script is a good tool for managing TSM, especially for automating tasks. A simple example is to create a schedule to run the script which backs up the TSM database. In this post, I am going to show you how to create, check and delete a script. Run the following command in TSM console is … Continue reading TSM Script