Ceph – short list of Do’s and Don’ts

Brief list of recomandations extracted from Ceph official site: Run OSD data and OSD journals on separate drives Do not run multiple OSDs on a single disk Do not run OSD and a monitor or a metadata server on a single disk Metadata servers and monitors should have plenty of RAM (1GB of RAM per […]

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Cannot detect the iSCSI storage after upgrading to vSphere 6.0

I have upgraded my VMware host to vSphere 6.0 today. The upgrade procedure has been smooth as expected and after 10 minutes my host been reachable again. Though I had to install the new vSphere Client and once successfully connected I had a surprise. My iSCSI based storage could not be detected by ESXi even […]

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How to migrate a VM between two datastores

For those which make use of only the free hypervisor from VMware the following procedure may suite your migration needs – from one datastore to a second one. Both datestores are on the same machine. This procedure has been tested on ESXi 5.5 Please beware to perform the necessary backups before attempting to work directly […]

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