by on July 5, 2016

De-mystifying gluster shards

Recently I’ve been working on converging glusterfs with oVirt – hyperconverged, open source style. oVirt has supported glusterfs storage domains for a while, but in the past a virtual disk was stored as a single file on a gluster volume. This helps som…

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WORM (Write Once Read Multiple), Retention and Compliance

This feature is about having WORM-based compliance/archiving solution in glusterfs. It mainly focus on the following Compliance: Laws and regulations to access and store intellectual property and confidential information. WORM/Retention : Store data in a tamper-proof and secure way & Data accessibility policies Archive: Storing data in effectively and efficiently & Disaster-Recovery solution   WORM […]

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by on June 27, 2016

Gluster Community Newsletter, June 2016

Announcing 3.8! As of June 14, 3.8 is released for general use. The 3.8 release focuses on: containers with inclusion of Heketi hyperconvergence ecosystem integration protocol improvements with NFS Ganesha Please note that this release also marks the end of updates for Gluster 3.5. Upcoming Events: Red Hat Summit, June 28-30 Gluster related talks: […]

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by on June 15, 2016

GlusterFS 3.8 Released announces the release of 3.8 on June 14, 2016, marking a decade of active development.   The 3.8 release focuses on: containers with inclusion of Heketi hyperconvergence ecosystem integration protocol improvements with NFS Ganesha   Contributed features are marked with the supporting organizations.   Automatic conflict resolution, self-healing improvements (Facebook) Synchronous Replication receives a […]

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by on June 14, 2016

GlusterFS Snapshots And Their Prerequisites

Long time, no see huh!!! This post has been pending on my part for a while now, partly because I was busy and partly because I am that lazy. But it’s a fairly important post as it talks about snapshotting the GlusterFS volumes. So what are these snapsh…

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by on May 27, 2016

Gluster Community Newsletter, May 2016

Important happenings for Gluster this month:  We’re closing in on a 3.8 release, with release candidate 2 released on May 24th. ( Our 3.8 roadmap of features is available at: Our current timeline is to have a release in June, so update your release notes! Gluster Developers Summit: October 6, 7 directly following LinuxCon […]

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by on April 26, 2016

Using LIO with Gluster

In the past, gluster users of have been able to open up their gluster volumes to iSCSI using the tgt daemon. This has been covered in the past on other blogs and also documented on, tgt has been superseded in more recent distro’s by LIO…

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by on April 20, 2016

Gluster Community Newsletter, April 2016

Lots of people at Vault this week! Last month’s newsletter included a list of all of the Gluster related talks, so if you’re here, come by the Red Hat booth and say hi!   New things: 3.7.11 Released: We’ve got a new Events ( page to replace the publicpad. ( – Feel free to add […]

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by on April 18, 2016

Deduplication Part 1: Rabin Karp for Variable Chunking

This is first post in a series of blog posts where we will discuss deduplication in a distributed data system. Here we will discuss different types of deduplication and various approaches taken in a distributed data systems to get optimum performance and storage efficiency. But first basics of deduplication! “Data deduplication (often called “intelligent compression” […]

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