CAJ | 학술논문

随着存储技术的快速发展，连续数据保护(CDP)功能已成为现代存储系统重要的数据保护和恢复手段，根据当前不同CDP实现机制的优缺点，提出了一种基于I/O颗粒度的持续数据保护机制I/O-CDP。传统的CDP技术都是以磁盘卷为单位，如果多个磁盘卷之间有数据一致性要求，很难保证多个磁盘卷之间始终有正确的写I/0速度，而I/O-CDP技术可以把这些磁盘卷设置成一致性组(Consistent Group)。一致性组使得在灾难发生后，持续数据保护卷可以正常的接管应用或者直接回复到生产卷中正常运行。
수착존저기술적쾌속발전，련속수거보호(CDP)공능이성위현대존저계통중요적수거보호화회복수단，근거당전불동CDP실현궤제적우결점，제출료일충기우I/O과립도적지속수거보호궤제I/O-CDP。전통적CDP기술도시이자반권위단위，여과다개자반권지간유수거일치성요구，흔난보증다개자반권지간시종유정학적사I/0속도，이I/O-CDP기술가이파저사자반권설치성일치성조(Consistent Group)。일치성조사득재재난발생후，지속수거보호권가이정상적접관응용혹자직접회복도생산권중정상운행。
With the rapid development of storage technology,conitinous data protection (CDP) function becomes an important data protection and recovery method in modern storage system. Accordig to the merits and faults of the realization mechanism of current different CDP,this paper proposes a continuous data protection mechanism based on I/O grid ,I/O-CDP).Traditional CDP technology measures with disk volume as unit.When there is a data consistency requirement within multi disk volumes,there would be a lack of consistent corrent I/O speed within disk volumes, thus the data consistency can not be promised among disk volumes.I/O-CDP technology can set these disk volumes as a consistent group.A consistent group can continuously protect the volumes,and take over applications,or directly rollback to production volumes to normal running after a disaster happens.