National Repository of Grey Literature 8 records found  Search took 0.01 seconds. 
Comparison of Distributed File System Features
Humpa, Vítězslav ; Kašpárek, Tomáš (referee) ; Szőke, Igor (advisor)
The goal of this thesis is to compare parallel ditributed file systems. Thesis aims at GlusterFS, PVFS 2 and Gfarm FS. There is a description of each filesystem's theory, including general installation and configuration information. The text also informs about experimental work done with each system and evaluates test results which are then used to determine ways of filesystems' possible usage at our faculty. All tested filesystems have shown to be stable enough for use in one of the applications on FIT. As it's described in this thesis, GlusterFS would excel at applications that require simultaneous access to many large files (i.e. recorded lectures download system), all filesystems would give roughly the same performance when accessing many small files (i.e. webserver) and PVFS2 and Gfarm FS would be better suited for work with small number of large files (i.e. some distributed calculations).
Smart Home Open-Source Components
Kúšik, Lukáš ; Letavay, Viliam (referee) ; Pluskal, Jan (advisor)
The aim of this thesis is to examine the state-of-the-art commercial elements found in smart home households. Their freely available alternatives are explored, together with three open-source home automation platforms. We review freely available microcontroller development kits, usable for the development of smart sensors. After that, using a suitable combination of electronic components and microcontrollers, components are designed and implemented for our own smart home system, utilizing the Home Assistant platform. This incorporates a built-in redundancy, designed to withstand cases of a failure of any component. The developed tool uses container orchestration technology, real-time file synchronization and automatically configured database clusters, to achieve a unique and comprehensive solution to high availability of Home Assistant.
Comparison of Parallel File Systems
Pazdera, Michal ; Michal, Bohumil (referee) ; Kašpárek, Tomáš (advisor)
The goal of this thesis was to explore several parallel file systems, and to evaluate their performance under various conditions. The main focus of this assessment were read and write speeds in different workloads, the reliability of each system, and also their ability to protect from data loss. Initially, this thesis introduces eight of the most commonly used parallel file systems. From these, three were selected for further testing: Lustre, GlusterFS, and CephFS. To be able to evaluate their performance accurately, a suite of automated tests was developed. These benchmarks were run for each individual file system in our testing lab. The final part of this work evaluates the results and discusses the features of each of the file systems and their suitability for particular workloads.
Optimization of Distributed Network Flow Collector
Wrona, Jan ; Grégr, Matěj (referee) ; Žádník, Martin (advisor)
This thesis is focused on the optimization of distributed IP flow information collector. Nowadays, the centralized collector is a frequently used solution but is already reaching its performance limits in large scale and high-speed networks. The implementation of the distributed collector is in its early phase and it is necessary to look for solutions that will use it to its full potential. Therefore this thesis proposes a shared nothing architecture without a single point of failure. Using the above proposed architecture, the distributed collector is tolerant to the failure of at least one node. A distributed flow data analysis software, whose performance scales linearly with the number of nodes, is also part of this thesis.
Smart Home Open-Source Components
Kúšik, Lukáš ; Letavay, Viliam (referee) ; Pluskal, Jan (advisor)
The aim of this thesis is to examine the state-of-the-art commercial elements found in smart home households. Their freely available alternatives are explored, together with three open-source home automation platforms. We review freely available microcontroller development kits, usable for the development of smart sensors. After that, using a suitable combination of electronic components and microcontrollers, components are designed and implemented for our own smart home system, utilizing the Home Assistant platform. This incorporates a built-in redundancy, designed to withstand cases of a failure of any component. The developed tool uses container orchestration technology, real-time file synchronization and automatically configured database clusters, to achieve a unique and comprehensive solution to high availability of Home Assistant.
Optimization of Distributed Network Flow Collector
Wrona, Jan ; Grégr, Matěj (referee) ; Žádník, Martin (advisor)
This thesis is focused on the optimization of distributed IP flow information collector. Nowadays, the centralized collector is a frequently used solution but is already reaching its performance limits in large scale and high-speed networks. The implementation of the distributed collector is in its early phase and it is necessary to look for solutions that will use it to its full potential. Therefore this thesis proposes a shared nothing architecture without a single point of failure. Using the above proposed architecture, the distributed collector is tolerant to the failure of at least one node. A distributed flow data analysis software, whose performance scales linearly with the number of nodes, is also part of this thesis.
Comparison of Parallel File Systems
Pazdera, Michal ; Michal, Bohumil (referee) ; Kašpárek, Tomáš (advisor)
The goal of this thesis was to explore several parallel file systems, and to evaluate their performance under various conditions. The main focus of this assessment were read and write speeds in different workloads, the reliability of each system, and also their ability to protect from data loss. Initially, this thesis introduces eight of the most commonly used parallel file systems. From these, three were selected for further testing: Lustre, GlusterFS, and CephFS. To be able to evaluate their performance accurately, a suite of automated tests was developed. These benchmarks were run for each individual file system in our testing lab. The final part of this work evaluates the results and discusses the features of each of the file systems and their suitability for particular workloads.
Comparison of Distributed File System Features
Humpa, Vítězslav ; Kašpárek, Tomáš (referee) ; Szőke, Igor (advisor)
The goal of this thesis is to compare parallel ditributed file systems. Thesis aims at GlusterFS, PVFS 2 and Gfarm FS. There is a description of each filesystem's theory, including general installation and configuration information. The text also informs about experimental work done with each system and evaluates test results which are then used to determine ways of filesystems' possible usage at our faculty. All tested filesystems have shown to be stable enough for use in one of the applications on FIT. As it's described in this thesis, GlusterFS would excel at applications that require simultaneous access to many large files (i.e. recorded lectures download system), all filesystems would give roughly the same performance when accessing many small files (i.e. webserver) and PVFS2 and Gfarm FS would be better suited for work with small number of large files (i.e. some distributed calculations).

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