一次基于系统性能分析的存储设备升级-《计算机技术与发展》

文章信息/Info

Author(s):: JI Yong－hua; LIU Jun－na; TANG Huai－ou; HUA Lian－sheng; Anhui Meteorological Informantion Center，Hefei 230031，China

摘要:: 综合气象信息共享系统(CIMISS)收集、处理、存储、共享海量的气象数据，随着设备运行多年，接入数据越来越多，系统在性能上存在瓶颈。通过分析系统业务需求和存储磁盘的 IO，得出 run 文件系统 IOPS 值较大，数据吞吐量大，这部分对存储设备的性能要求较高，而 OＲACLE 数据库和 data 文件系统是大数据容量存储部分，同时也对随机 IO 有较高的要求。基于业务分析同时兼顾性价比，配置新的存储设备，采用 2 个 Active－Active 工作模式的 32 GB 高速缓存控制器，配置SSD 固态硬盘和高速 SAS 磁盘满足高性能 IO 需求，也有容量需求较大的 4 TB SATA 盘，并且能灵活扩容。实施中利用FAST VP 功能实现分层数据管理，通过一段时间的稳定运行，run 文件系统数据最“热”，在 SSD 和 SAS 上分别占比为50. 63%和 34．22%，而 OＲACLE 数据库和 data 文件系统中大部分数据访问率较低，因此，这些“冷数据”会自动迁移到 SA-TA 盘上，分别占比 64．7%和 74．31%。

Abstract:: China integrated meteorological information service system (CIMISS) collects，processes，stores and shares massive meteorological data． With the equipment running for many years，more and more data are accessed，and the system has a bottlenecks in performance． Through the analysis of the system business requirements and IO of storage disk，it is concluded that the run file system has larger IOPS and high data throughput． The OＲACLE database and the data file system need large data capacity，and also have high requirements for the random IO． Configuring new storage based on business analysis and cost performance，it uses 2 Active－Active mode controller of 32 GB cache，with SSD solid disk and high speed SAS disk for IO performance requirements，and 4TB SATA disk with capacity requirements，which can be expanded flexibly． In the implementation using FAST VP function to realize hierarchical data management，through a period of steady running，the run file system has the most“hot”data，accounting for 50．63% and 34．22% respectively on SSD and SAS． The access rate of most data in OＲACLE database and data file system is low，so these“cold data”will automatically be migrated to SATA disk，accounting for 64．7% and 74．31% respectively．