显然自动聚合。
AIX 5.2 之前默认是 RDAC
AIX - MPIO Driver, AIX 5L 5.2 (October 2002) and later
在AIX上确认当前正在使用MPIO还是RDAC,执行“manage_disk_drivers”
RDAC:fget_config -Av
SDDPCM: sddpcm_get_config -Av
MPIO路径的常用操作
1、查看单个盘的路径
2、MPIO路径控制
将fcs0卡下的hdisk2的路径禁用
将fcs0卡下的hdisk2的路径启用
3、其它参数
This parameter specifies which I/O paths should be monitored by the path health checking
functionality.
nonactive: This mode will check all failed I/O paths and all standby paths of used/opened
devices.
failed: This mode with check failed I/O paths only.
enabled: This mode will check all enabled I/O paths which are opened.
Note:
Non-opened devices are not monitored. Also, this attribute is
not being used at this time since path health checking is not
enabled. This attribute can be ignored
4、修改链路优先级
lspath -AHE -l hdisk2 -p vscsi3 //查看链路优先级
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Dynamic load balancing 动态负载均衡
Traffic shaping 流量控制
Automatic path management 自动路径管理
Dynamic reconfiguration 动态设置
Multipath I/O software implementations 多路径软件工具
aix识别ds4700存储看aix 是哪个版本,一般有两种一是rdac,另一个是mpio 可以用命令fget_config -Av 或者mpio_get_config 查看,aix 6.1默认是mpio,通过运行以下命令来检查 AIX 系统驱动程序支持和状态: