Cloud storage overview

In a narrow sense, cloud storage refers to object storage. In a broader sense, it refers to any storage service (block, file or object level) provided by cloud vendors, in a cloud business model. The underlying technology of storage, is the same be it in the cloud or on-premise. Block storage File storage object Interaction … Read moreCloud storage overview

Docker Compose, Docker Stack and Docker Swarm

This posting covers some basic docker orchestration tools. Docker Compose Docker Compose’s predecessor is a tool called Fig developed by Orchard, which was acquired by Docker in 2014, with Fig renamed to Docker Compose. Docker Compose is the official container management tool. It is essentially a python script that parses yaml file, to make Docker … Read moreDocker Compose, Docker Stack and Docker Swarm

Storage Nitty-Gritty 2 of 5 – SAN

In direct attached storage (DAS), storage is server centric and the host owns the storage. The storage is fully dedicated to the server that owns it. Storage has evolved into information centric model. In this model, when a new server is deployed in the environment, storage is assigned from the same shared storage pool to … Read moreStorage Nitty-Gritty 2 of 5 – SAN

Storage Nitty-Gritty 1 of 5 – Disk and RAID

On my trip I have been through several pre-sales discussions on storage. Therefore I’m taking this opportunities to write up a series of postings deep diving into storage technologies. In this first section, we lay out the foundation of storage technology, from physical device to RAID, focusing on the concepts. Some contents are excerpts from … Read moreStorage Nitty-Gritty 1 of 5 – Disk and RAID