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Archive | June, 2012

Benchmarking individual drives

One of the aspects of RAID’ing drives of different makes, models, and performance is that your slowest drive will be your bottleneck. To aid in identifying your slowest drive, below is a benchmark script. Download: http://download.openegg.org/temp/Simple-IO-Test.zip There are two example test scripts. The first one benchmarks each drive at time and the other does it  Full Article…

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Real-Time RAID Dos and Don’ts

Do: When using applications like torrent and the likes, do enable the option to preallocate the files. This helps create less fragmentation within the FlexRAID filesystem and increases performance and resource utilization. Also, when copying files, use a program that pre-allocate the file to be copied. Some programs fail to pre-allocate and end up creating  Full Article…

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WARNING: S.M.A.R.T monitoring on Samsung F4 EcoGreen drives (HD155UI, HD204UI)

*** Using FlexRAID’s S.M.A.R.T drive monitoring feature with Samsung F4 EcoGreen drives (HD155UI, HD204UI and HD204UI/JP) may result in data loss *** This is not FlexRAID specific and you must update the firmware of the drives listed above to avoid the issue. Read here: http://sourceforge.net/apps/trac/smartmontools/wiki/SamsungF4EGBadBlocks Firmware updates (I have decided to host these): Samsung F4EG  Full Article…

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WMI diagnostic

FlexRAID relies on WMI for a number of its functions. You might be referred to this article to diagnose WMI related issue with your system. Download “The WMI Diagnosis Utility” here: http://www.microsoft.com/en-us/download/details.aspx?id=7684 or here for version 2.1 Run the downloaded file and you will be prompted to specify a directory where it needs to be  Full Article…

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