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disk overhead

Definitions

  • WordNet 3.6
    • n disk overhead (computer science) the disk space required for information that is not data but is used for location and timing
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Usage

In literature:

The white disk overhead had suddenly disappeared.
"The Magic City" by Edith Nesbit
The moon hangs overhead, with never a cloud-kerchief about her great disk.
"Alas!" by Rhoda Broughton
Overhead, in the narrow ribbon of indigo sky, hung a pallid moon: a disk of yellow glass.
"The Azure Rose" by Reginald Wright Kauffman
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In science:

It seems that for cloud storage applications the main performance bottleneck is the disk I/O overhead for repair, which is proportional to the number of nodes d involved in rebuilding a failed node.
Simple Regenerating Codes: Network Coding for Cloud Storage
MSR codes, SRCs with f = log(k) sacrifice asymptotically negligible coding rate and have a logarithmic overhead compared to minimum bandwidth node repair, when at the same time they attain very easy repair based on simple XORs, with logarithmic in k number of disk accesses.
Simple Regenerating Codes: Network Coding for Cloud Storage
Our experiments take into account a combination of different factors including network bandwidth, disk I/Os, encoding/decoding overhead.
CORE: Augmenting Regenerating-Coding-Based Recovery for Single and Concurrent Failures in Distributed Storage Systems
We experiment CORE on a distributed storage system testbed. A major deployment issue is that the overall recovery performance is determined by a combination of factors including network bandwidth, disk I/Os, encoding/decoding overhead.
CORE: Augmenting Regenerating-Coding-Based Recovery for Single and Concurrent Failures in Distributed Storage Systems
Our experimental results show slightly less gains, mainly due to disk I/O and encoding/decoding overheads that are not captured in the recovery bandwidth.
CORE: Augmenting Regenerating-Coding-Based Recovery for Single and Concurrent Failures in Distributed Storage Systems
Sizes of disk blocks, memory and communication buffers: Larger buffers can help to avoid overhead incurred by repetitive calls to system functions (e. g. one call to send/receive 1MBytes instead of 10 calls sending/receiving 100KBytes each).
Cluster Computing White Paper
Including an additional overhead of 5 s from CCD flushing, writing data to disk, and other software delays, we obtained a dead time of order 7–9 s between exposures.
Discovery of two new accreting pulsating white dwarf stars
Milagro is a large aperture water Cherenkov detector for extensive air showers, collecting data from a solid angle of more than two steradians in the overhead sky at energies near 1 TeV. A 2000-2001 data set from Milagro has been used to search for the emission of diffuse gamma rays from the galactic disk.
Search for Gamma Ray Emission from Galactic Plane with Milagro
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