An Approach for RAID Scaling Based on STAR-Code

Zhong, Xi; Yuan, Zhu; Hu, Y. Charlie; Xie, Ping

doi:10.1109/ccet48361.2019.8989091

Cited by 4 publications

(1 citation statement)

References 11 publications

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“…Typical RAID scaling approaches preserve the RR and semi-RR data distributions after adding disks. (18)(19)(20)(21) Although RR and semi-RR are simple approaches to implementation on RAID 6, the resulting overhead is high.…”

Section: Scaling Schemementioning

confidence: 99%

Efficient Reed–Solomon Redundant Arrays of Independent Disks 6 Exclusive OR Accelerator with Scaling Scheme

Yue,

Wul,

Hou

et al. 2023

Sensors and Materials

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An efficient Reed-Solomon redundant arrays of independent disks 6 (RS-RAID 6) exclusive OR (XOR) accelerator with a scaling scheme is proposed in this paper. The accelerator first considers the hardware working characteristic to reduce the complexity of codec computation. To increase efficiency, the parameter calculation of the 8-bit Galois field [GF(8)] is converted to a GF(2) calculation, where two additions, one multiplication, and one division are optimized in every 8 bits of calculation. A new scaling scheme is also proposed to guarantee the input/output (I/O) balance. The proposed Reed-Solomon (RS) codec hardware architecture is fully verified at the Real Time Logistics (RTL) level and synthesized with a GF 12 nm technology library to compare the gate cost and input/output operations per second (IOPS) performance with those of other classic solutions. Separate simulations are performed for different codec algorithms and scaling schemes. The IOPS performance of the proposed RS-RAID 6 XOR accelerator is improved by a factor of 2-3 at the cost of 47% more gates.

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Section: Scaling Schemementioning

confidence: 99%