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FR1 2.15b

  Date Added: February 22, 2010  |  Visits: 691

FR1

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FR1 is a Linux kernel driver that adapts the kernels own software RAID1 driver. Its intelligent in that it doesnt blindly resynchronize a whole mirror component when only a few blocks need resyncing. That can save hours of resync time on a large device. In addition, it always chooses the fastest device to read from on reads. The driver keeps a bitmap of pending writes in memory, and writes them to the mirror component thats just been repaired when it comes back on line. The bitmap is two-level and created pagewise on demand, so its not too expensive. A terabyte sized device with blocks of 4K will cost max 32MB of memory per mirror component, thus 64MB max for a two component mirror. But in practice only a few pages of bitmap will have been allocated by the time you come to fix the device. Limitations:.

Requirements: No special requirements
Platforms: Linux
Keyword: Component Driver Kernel Kernel Driver Kernels Linux Kernel Linux Kernel Driver Mirror Own Software System
Users rating: 0/10

License: Freeware Size: 68.61 KB
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