Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 11 of 11 for “"Disk array"”.
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Performance evaluation of various allocation methods in a heterogeneous disk array architecture
… viable for an installation to acquire multiple disk arrays to satisfy diverse data storage requirements. A Heterogeneous Disk Array (HDA) architecture is proposed, which allows device heterogeneity as well as RAID level heterogeneity. In other words, various disks of different types can be …
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Studies of disk arrays tolerating two disk failures and a proposal for a heterogeneous disk array
… access to these data is made possible by large disk arrays, especially in the RAID (Redundant Array of Independent Disks) paradigm. According to the RAID level a disk array can tolerate one or more disk failures, so that the storage subsystem can continue operating with disk failure(s). RAID 5 …
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Close-form and matrix en/decoding evaluation on Different Erasure Codes
Erasure code, often applied in disk-array distributed le system, is a technique to protect data in case there are some accidental failures in the system. Nowadays, as customers require higher reliability for their data, RAID6, which at most protect double failures in disk-array, is not sucient any …
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Detectivity vs. Sensitivity: Non-Hermitian Metasurface Sensor
… This problem can be alleviated by using an array of plasmonic structures forming a quasi bound state-in-the-continuum (BIC). The plasmonic BIC sensors show higher detectivity but smaller sensitivity. We identify the physics behind this trade-off and experimentally demonstrate antimouse-IgG …
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The effects of limited rebuild buffer and track buffers on rebuild time in raid5
Redundant Arrays of Independent Disks (RAID) are very popular for creating large, reliable storage systems. A RAID array consists of multiple independent disks that achieve fault tolerance by parity coding. The contents on a failed disk can be reconstructed on demand by reading and exciusive-ORing …
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On error correcting codes for distributed storage
… for additional recovery properties. Codewords in array format find applications in disk storage where columns are stored on different disks in combination with parity checks across disks that protect data against disk failures. The addition of global parities protects against sector failures on …
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Frequency Selective Detection of Infrared Radiation in Uncooled Optical Nano-Antenna Array
… this study, we designed an optical nano-antenna array based detector with narrow frequency band of operation. The structure consists of a two-element antenna array comprised of a perforated metallic hole array coupled with an underneath disk array which trap incident radiation as dipole currents. …
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Data allocation in disk arrays with multiple raid levels
… can be solved by using the RAID (redundant array of inexpensive disks) paradigm. i.e., RAIDi for the first situation and RAID5 for the second situation. Furthermore rather than providing two disk arrays with RAID 1 and RAID5 capabilities, a controller can be postulated to emulate both. It is …
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Design, development and characterization of nanostructured electrochemical sensors
… reaction. The miniaturized band array electrodes with specific width, length and inter-electrode-distance were integrated with homogeneously distributed copper foam nano dendrites. Such foam deposits presented for the first time at the micro scale were achieved using the in-situ …
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ATOM : a distributed system for video retrieval via ATM networks
… improve overall system capacity. The concept of disk striping over a disk array is introduced and a Data Placement Strategy is designed which eliminates disk hot spots (i.e. Overuse of some disks whilst others lie idle.) A novel parameter (the B-P Ratio) is presented which can be used by the …