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SR5 from Boon Storage Technologies, Inc. is a breakthrough
software RAID5 technology that transforms ATA / Serial ATA drives into
enterprise quality RAID5 arrays. SR5 delivers the highest level of performance
and reliability to ATA / SATA based storage applications:
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Reliability
SR5 provides the level of data integrity and reliability only offered by high
end SCSI RAID solutions that use NVRAM. SR5 guarantees atomic parity stripe
updates without using expensive NVRAM or using disk-based logging techniques
that will impact performance.
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Performance
SR5 offers a new level of RAID5
performance to ATA / SATA storage. Benchmark tests against several existing
ATA based RAID5 solutions have shown that SR5 delivers much superior
performance. SR5 also leverages the Intel’s MMX™ Technology for fast XOR
computations.
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Disk Write Back Cache
SR5 can operate with disk write
back cache turned on, but always ensures ordered writes to the RAID5 disk
array. Traditionally, leaving the disk cache on can lead to unordered writes,
which can cause file system corruption upon power failures. SR5 guarantees
that data is orderly written to the disk array, allowing disk cache to be
turned on for maximum performance.
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| Array expansion /
reduction
SR5 adapts itself to disk failure, addition or removal. When a disk fails in
an N disk array and it has not been replaced, SR5 will try to take advantage
of the space in the remaining active disks to rebuild a new N-1 disk array;
after the rebuild process, the array can again tolerate 1 disk failure.
Similar adjustments are made in reaction to disk addition or removal.
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We are now releasing SR5
Software RAID on Linux. Throughout this site, we are also sharing our experience
and knowledge on building reliable storage systems. Please check out the
following links to learn more about SR5.
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