描述
I/O点数估算时应考虑适当的余量，通常根据统计的输入输出点数，再增加10%～20%的可扩展余量后，作为输入输出点数估算数据。实际订货时，还需根据制造厂商PLC的产品特点，对输入输出点数进行圆整。
NetApp FAS270c Network Appliance Filer w/ 2TB 14 x X274
NetApp FAS3050C Network Appliance Filer Head
NetApp FAS3020c 2x Filers / 2x DS14 MK2 / 28x 146GB
NetApp DS14 MK2 Shelf w/ (14) 144GB 10K HDD
Netapp FAS2050C Cluster Filer Head Dual Controller
Netapp FAS2050C Cluster 2x Controller FAS2050 Clustered
NetApp SK-FAS960 Spares Kit for FAS960 System
