GlusterFS
Today, GlusterFS [13] is an open-source scale-out file system, offering NFS, SMB, and HDFS. With more than 8000 user-developers at the time of writing, it has a solid following in the HPC market segment. The software was designed to address the problems of scaling out file and NAS systems, where crossing the boundary between appliances presented a severe roadblock to petabyte-sized configurations.
GlusterFS is also discussed in File Systems for Big Data section of Chapter 8, where the emphasis is more on software structure.
GlusterFS is deployed on COTS servers, either within virtual instances or on bare metal. Scaling capacity is achieved by adding more appliances to the cluster, while performance scaling can be controlled by spreading data out across the appliance pool. Clusters with several petabytes of storage are achievable and multitenant environments with thousands of tenants can be created.
Gluster avoids the scaling issues of centralized metadata by distributing that data across the nodes. It copies from the RAID concept to mirror stripe and replicate data for integrity purposes, but it does so at the appliance level rather than at the drive level. This is critical in large-scale storage, since the failure rate of appliances is sufficiently high that data availability would be at risk if only drives are involved.
GlusterFS is a Linux user-space file system, a deliberate choice allowing faster integration into systems. It utilizes a Linux kernel file system to format the disk space. It can be deployed in environments such as AWS as a result, and this is a good way to get started with the approach. Networking is very well supported, and since January 2015 it has been possible to connect clusters with RDMA for low latency and high performance. iSCSI is supported, too. In common with object storage, replication control is well featured and supports geodiversity.
GlusterFS supports Hadoop seamlessly without the need for application rewrites. This brings fault tolerance to the Hadoop space and allows the choice of file or object access to the data. In fact, APIs have been created to allow objects to be accessed as files and vice versa.
It is also possible to install GlusterFS as a file system for Cinder, the block-IO access model in OpenStack.
Cloud storage can be built around GlusterFS, as virtualized systems, and large NAS systems can be created. These constitute the bulk of GlusterFS deployments, according to Red Hat.
The file system serves the analytics market particularly well, with strong Hadoop compatibility on the big data side and Splunk support for machine analytics. Rich media and data streaming can take advantage of performance tuning and scaled-out capacity.
GlusterFS, under Red Hats direction, is adding features rapidly. The 3.1 release, Everglades, adds in erasure coding, keeping up with the object storage companies, data tiering, and also SMB 3.0 support.
In common with many storage solutions, GlusterFS is destined to become much more automated, with provisioning by users and more policy-based management, with terms like File-as-a-Service and NAS-on-Demand being used by Red Hat. Being a Linux-based solution, its unlikely to ever lose the CLI control process, which makes large-scale operations more error-prone.
Additional features are planned such as deduplication and compression. Performance tuning is on the table, though there are questions about how best to handle all-SSD clusters, as with any software stack in storage today. Planned support for NVMe acknowledges that the issue is understood to some extent.
Data integrity issues still exist in GlusterFS, due to the way data is replicated. Rack-level awareness is on the roadmap, to better distribute replicas and erasure coded data sets.
Theres no good answer to this question, at least for now. Both Ceph and Gluster have strengths and weaknesses, but not enough to give one model a decided edge. The fact that Red Hat drives both of them also reduces competition between them. Generally, Ceph addresses the object space very well, while Gluster might be the choice for data centers focused on more traditional file server networked storage.
Ceph is still coming to terms with the world of filers, and the file access gateway is still evolving towards full production. GlusterFS came to the object space late and it shows. Still, it seems likely that the overlap between them will increase as time goes on and the feature sets converge. This may not matter to Red Hatthey get paid either way and both products are leaders.
Performance is something of a mystery. At time of press there were no published articles on relative performance that had real credibility. Configuration setup and software tuning have a big impact, and it seems that this is still an area needing more study.
Read more:
Cloud Storage - an overview | ScienceDirect Topics
- CTERA Networks Partners with SYNNEX Corporation to Drive Market Demand for Hybrid Cloud Storage, Collaboration and ... [Last Updated On: October 5th, 2012] [Originally Added On: October 5th, 2012]
- Cloud storage exempt from Ninefold's uptime boost [Last Updated On: October 5th, 2012] [Originally Added On: October 5th, 2012]
- Virsto Named Finalist of 2012 Storage Virtualization & Cloud Awards [Last Updated On: October 5th, 2012] [Originally Added On: October 5th, 2012]
- Innovative Hybrid Cloud Storage Solutions Now Available From PROMISE Technology [Last Updated On: October 5th, 2012] [Originally Added On: October 5th, 2012]
- Box Talks Integration with BlackBerry 10 and Cloud Storage for Business - Video [Last Updated On: October 5th, 2012] [Originally Added On: October 5th, 2012]
- AG112's Weekly Technology Tutorials Ep.7 Cloud Storage - Video [Last Updated On: October 5th, 2012] [Originally Added On: October 5th, 2012]
- Cloud Storage - Video [Last Updated On: October 5th, 2012] [Originally Added On: October 5th, 2012]
- Google Cloud Storage Office Hours - 9/5/2012 - Video [Last Updated On: October 5th, 2012] [Originally Added On: October 5th, 2012]
- IBM Cloud Storage -- Future Directions - Video [Last Updated On: October 5th, 2012] [Originally Added On: October 5th, 2012]
- Working with best FREE Cloud storage solution - MediaFire - Video [Last Updated On: October 5th, 2012] [Originally Added On: October 5th, 2012]
- Best Cloud Storage | How Nate Made $450 His First Hour... - Video [Last Updated On: October 5th, 2012] [Originally Added On: October 5th, 2012]
- Cloud Storage Services: Comparison - Video [Last Updated On: October 5th, 2012] [Originally Added On: October 5th, 2012]
- Top 10 Free Cloud Storage Services of 2012 - Video [Last Updated On: October 5th, 2012] [Originally Added On: October 5th, 2012]
- Cloud Storage Wars - Video [Last Updated On: October 5th, 2012] [Originally Added On: October 5th, 2012]
- Secure and Comprehensive Cloud Storage for Health IT - Video [Last Updated On: October 5th, 2012] [Originally Added On: October 5th, 2012]
- Free Cloud Storage! - Video [Last Updated On: October 5th, 2012] [Originally Added On: October 5th, 2012]
- Microsoft SkyDrive Cloud Storage - Video [Last Updated On: October 5th, 2012] [Originally Added On: October 5th, 2012]
- Top 16 Android Cloud Storage Apps Quick Breakdown - Video [Last Updated On: October 5th, 2012] [Originally Added On: October 5th, 2012]
- Up to 48GB of FREE Cloud Storage, 14GB Guaranteed - Video [Last Updated On: October 5th, 2012] [Originally Added On: October 5th, 2012]
- Nasuni's CEO To Speak At Interop On The Secure Use Of Cloud Storage [Last Updated On: October 6th, 2012] [Originally Added On: October 6th, 2012]
- Oracle vs Amazon Cloud Storage: OpenWorld 2012 - Video [Last Updated On: October 6th, 2012] [Originally Added On: October 6th, 2012]
- Apple extends iCloud storage for another year [Last Updated On: October 7th, 2012] [Originally Added On: October 7th, 2012]
- Interush Introduces Convenient Cloud-Based Storage Service with Release of PHYTTER DOCK Application [Last Updated On: October 9th, 2012] [Originally Added On: October 9th, 2012]
- Get a free 15GB cloud-storage account from 4Sync [Last Updated On: October 9th, 2012] [Originally Added On: October 9th, 2012]
- Cloud Solutions Increase Customer Engagement and Retention [Last Updated On: October 9th, 2012] [Originally Added On: October 9th, 2012]
- Pogoplug offering 100GB of cloud storage to UK users for just £19.99 a year [Last Updated On: October 10th, 2012] [Originally Added On: October 10th, 2012]
- New vFoglight Storage 2.0 Provides Integrated Application to Disk Performance Monitoring [Last Updated On: October 10th, 2012] [Originally Added On: October 10th, 2012]
- Lunacloud Deploys Cloudian® To Grow Business, Offer S3 Compatible Cloud Storage [Last Updated On: October 11th, 2012] [Originally Added On: October 11th, 2012]
- New Cloud Storage Company, ZapDrive, Launches Today Offering 100 GB for $19.99/year. [Last Updated On: October 11th, 2012] [Originally Added On: October 11th, 2012]
- Otixo Adds Ubuntu One to Aggregated Cloud Storage Lineup [Last Updated On: October 11th, 2012] [Originally Added On: October 11th, 2012]
- Cloud Storage Reviews Announcement Video - Video [Last Updated On: October 11th, 2012] [Originally Added On: October 11th, 2012]
- Cloud storage outage strikes Macquarie Telecom [Last Updated On: October 11th, 2012] [Originally Added On: October 11th, 2012]
- Online-Storage.com is Now SIO.CO [Last Updated On: October 11th, 2012] [Originally Added On: October 11th, 2012]
- C2C Maximizes eMail Archiving Flexibility and Control With Support for the Hybrid Cloud [Last Updated On: October 11th, 2012] [Originally Added On: October 11th, 2012]
- OwnCloud: Build your own or manage your public cloud storage services [Last Updated On: October 12th, 2012] [Originally Added On: October 12th, 2012]
- Ubuntu's cloud storage service hits Mac in beta, with 5GB free [Last Updated On: October 12th, 2012] [Originally Added On: October 12th, 2012]
- Akitio Cloud Hybrid Review: Convenient NAS and USB Storage in One [Last Updated On: October 13th, 2012] [Originally Added On: October 13th, 2012]
- Symform Hires Senior Sales Executive to Build Global Partnerships as Distributed Cloud Storage Network Surpasses 5.5 ... [Last Updated On: October 15th, 2012] [Originally Added On: October 15th, 2012]
- Get an extra 25GB of storage in the Dropbox Great Space Race [Last Updated On: October 16th, 2012] [Originally Added On: October 16th, 2012]
- Microsoft Acquires StorSimple To Increase Cloud Storage Capabilities [Last Updated On: October 17th, 2012] [Originally Added On: October 17th, 2012]
- Inktank-Metacloud Partnership Enhances Fully Managed Private Cloud Solution With Enterprise-Class Storage [Last Updated On: October 17th, 2012] [Originally Added On: October 17th, 2012]
- Citrix and NetApp Collaborate to Simplify Cloud Storage [Last Updated On: October 17th, 2012] [Originally Added On: October 17th, 2012]
- Microsoft Acquires Leader In Cloud-integrated Storage [Last Updated On: October 17th, 2012] [Originally Added On: October 17th, 2012]
- Microsoft Buys StorSimple for Enterprise Cloud Storage [Last Updated On: October 18th, 2012] [Originally Added On: October 18th, 2012]
- FreedomPACS, Radiology PACS and Cloud Image Storage Provider, Releases Results of County Hospital Case Study ... [Last Updated On: November 1st, 2012] [Originally Added On: November 1st, 2012]
- Nirvanix Selects Brocade as Networking Backbone for Global Cloud Expansion [Last Updated On: November 1st, 2012] [Originally Added On: November 1st, 2012]
- Pogoplug offers unlimited cloud storage for $5 a month [Last Updated On: November 1st, 2012] [Originally Added On: November 1st, 2012]
- NTT Communications Chooses Cloudian® S3 compatible Object Storage Platform for Multi Petabyte Cloud Storage as a Service [Last Updated On: November 1st, 2012] [Originally Added On: November 1st, 2012]
- TwinStrata and Google to Host "Beyond Disaster Recovery: Integrating Cloud Storage into Your IT Strategy" Seminar [Last Updated On: November 1st, 2012] [Originally Added On: November 1st, 2012]
- Cloud Storage Reviews Outlines "How SugarSync Works" In Latest Guide [Last Updated On: November 1st, 2012] [Originally Added On: November 1st, 2012]
- Symform Challenges Users to Think Beyond Centralized Data Centers With Its 'Byte Me' Promotion [Last Updated On: November 1st, 2012] [Originally Added On: November 1st, 2012]
- Avere to tart up FTX with cloud storage gateway, mutterings foretell [Last Updated On: November 1st, 2012] [Originally Added On: November 1st, 2012]
- Deals WD My Book Live Personal Cloud Storage 2 TB Network Attached Best Price 2012 - Video [Last Updated On: November 1st, 2012] [Originally Added On: November 1st, 2012]
- Create and Manage Your Own Cloud Storage Free - Video [Last Updated On: November 1st, 2012] [Originally Added On: November 1st, 2012]
- Free Cloud Space 100GB - Video [Last Updated On: November 1st, 2012] [Originally Added On: November 1st, 2012]
- DuraCloud Brown Bag Series: How DuraCloud is Different From Amazon - Video [Last Updated On: November 1st, 2012] [Originally Added On: November 1st, 2012]
- PocketCloud Explore - Video [Last Updated On: November 1st, 2012] [Originally Added On: November 1st, 2012]
- Free 1TB Cloud storage - Video [Last Updated On: November 1st, 2012] [Originally Added On: November 1st, 2012]
- Store your files on WEB for free - Unlimited and better than dropbox - Video [Last Updated On: November 1st, 2012] [Originally Added On: November 1st, 2012]
- CloudBackupNow - Retention Policy (with audio) - Video [Last Updated On: November 1st, 2012] [Originally Added On: November 1st, 2012]
- CloudBackupNow - Retention Policy - Video [Last Updated On: November 1st, 2012] [Originally Added On: November 1st, 2012]
- CloudBackupNow - Primer II - Video [Last Updated On: November 1st, 2012] [Originally Added On: November 1st, 2012]
- ERP Data Capture animation - Video [Last Updated On: November 1st, 2012] [Originally Added On: November 1st, 2012]
- Cash rains DOWN on the Cloud - Nasuni trousers $20m [Last Updated On: November 3rd, 2012] [Originally Added On: November 3rd, 2012]
- My PC Backup Review The Cloud Storage Service For You - Video [Last Updated On: November 3rd, 2012] [Originally Added On: November 3rd, 2012]
- Samsung ATIV S Review - Phones 4u - Video [Last Updated On: November 3rd, 2012] [Originally Added On: November 3rd, 2012]
- Trust Me mv - Video [Last Updated On: November 3rd, 2012] [Originally Added On: November 3rd, 2012]
- Product Webinar: Collaborating and Exchanging Large Data at Distance with Faspex 3.0 - Video [Last Updated On: November 3rd, 2012] [Originally Added On: November 3rd, 2012]
- DT Daily: Facebook takes aim at Craigslist, Halo 4 reviews a - Video [Last Updated On: November 3rd, 2012] [Originally Added On: November 3rd, 2012]
- 2 MCSE Private Cloud Storage Basics - Video [Last Updated On: November 3rd, 2012] [Originally Added On: November 3rd, 2012]
- Gladinet Cloud Enterprise Quick Start Guide - Video [Last Updated On: November 3rd, 2012] [Originally Added On: November 3rd, 2012]
- Installing OfficeDrop Mac File Sync - Video [Last Updated On: November 3rd, 2012] [Originally Added On: November 3rd, 2012]
- OfficeDrop Mac File Sync - Video [Last Updated On: November 3rd, 2012] [Originally Added On: November 3rd, 2012]
- Secure Cloud Storage - Video [Last Updated On: November 3rd, 2012] [Originally Added On: November 3rd, 2012]
- Windows Phone 8: Lenese integrates apps in the camera app - Video [Last Updated On: November 3rd, 2012] [Originally Added On: November 3rd, 2012]
- Graphic Video on Wuala Secure Cloud Storage from Paula Hansen and Chart Magic - Video [Last Updated On: November 3rd, 2012] [Originally Added On: November 3rd, 2012]
- Hurricane Sandy Cheat Meal Run to Tastee Diner - Video [Last Updated On: November 3rd, 2012] [Originally Added On: November 3rd, 2012]
- Cloud Zow Review - Cloudzow Review | Marketing Secret Revealed - Video [Last Updated On: November 3rd, 2012] [Originally Added On: November 3rd, 2012]
- What is Cloud Storage? - Video [Last Updated On: November 4th, 2012] [Originally Added On: November 4th, 2012]
- Perfume - Chocolate Disco [ hide@BSB Battle In Feb. Remix ] - Video [Last Updated On: November 4th, 2012] [Originally Added On: November 4th, 2012]