Google Cloud Persistent Disk vs. IBM Storage Ceph

If you are shopping for a virtual business storage software, Google Cloud Persistent Disk offers the best features more so when it comes to ease of data access, data security, fast data transfers, and scalability. It is ideal for all businesses regardless of the industry.

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It is absolutely, hands down the best storage solution for Open Stack. I would even argue it is the only solution if a company is operating at petabyte scale and need resiliency. The storage solution allows any organization to scale their environment using commodity hardware from top to bottom. It has a battle tested track record where it is even being used as the data storage back end for the Large Hadron Collider at Cern

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• Easy to provision
• Easy to scale
• Easy at administer
• Easy pricing model
• Geographically located

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• Highly resilient, almost every time we attempted to destroy the cluster it was able to recover from a failure. It struggled to when the nodes where down to about 30%(3 replicas on 10 nodes)
• The cache tiering feature of Ceph is especially nice. We attached solid state disks and assigned them as the cache tier. Our sio benchmarks beat the our Netapp when we benchmarked it years ago (no traffic, clean disks) by a very wide margin.
• Ceph effectively allows the admin to control the entire stack from top to bottom instead of being tied to any one storage vendor. The cluster can be decentralized and replicated across data centers if necessary although we didn't try that feature ourselves, it gave us some ideas for a disaster recovery solution. We really liked the idea that since we control the hardware and the software, we have infinite upgradability with off the shelf parts which is exactly what it was built for.

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• I have not experienced any problems using Google Cloud Persistent Disk.

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• Authorization on object level could be improved
• Helper libraries to access Red Hat Ceph Storage from various languages could be improved
• Ability to attach structured metadata to stored objects could be improved

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We are using many Google products and therefore Google Cloud Persistent Disk was our best choice. It is scalable and very secure.

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VSAN (Virtual SAN) and Ceph are both software-defined storage solutions, but they have some key differences in terms of their architecture and capabilities.VSAN is a software-defined storage solution that is built into the VMware vSphere hypervisor. It allows organizations to create a shared storage pool using locally attached storage on multiple ESXi hosts. VSAN is designed to be highly available, and it can automatically detect and recover from hardware failures.Ceph, on the other hand, is an open-source software-defined storage solution that can run on a variety of different hardware and virtualization platforms. It provides object, block, and file storage in a single platform, and is designed to be highly scalable and highly available. Ceph is also known for its ability to handle large amounts of data, and it can be integrated with a wide variety of different applications and services.In terms of functionality, VSAN is more suited for virtualized environments, as it is built into vSphere and it is designed to work well with vSphere's other features such as vMotion and DRS. Ceph on the other hand provides more flexibility as it can run on multiple platforms and it can handle more types of storage like object, block and file storage.I

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• No need to worry about the data we are stored in the system
• Durabla system

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• Cost saving in terms of capex (you can reduce EMC & NetApp like dependency)
• One time setup & then easy provisioning of storage
• Requirement of competent engineers for maintenence

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