5,共享磁盘的创建
在这里使用IBM 7133阵列中五块73GB硬盘作为共享磁盘,其中1-4块硬盘做一个raid5,第五块硬盘作为hot spare盘,以防有坏盘状况发生时能够自动顶替并维持工作。
通过命令"lsdev -Cc pdisk“来查看7133中所有磁盘:
在每台机器中,通过命令“ssaxlate”可以查看逻辑磁盘hdisk2与7133中物理磁盘的对应关系,但显示出物理磁盘名又不尽相同,如在主机ibm0上显示为pdisk1、pdisk2、pdisk5与pdisk7,在备机ibm1上则为pdisk0、pdisk1、pdisk4及pdisk6,但他们在7133阵列上所处插槽皆为1到4,如下所示:
root@ibm1:/#lsdev -Cc pdisk
pdisk0 Available 1P-18-A01B-03-P SSA160 Physical Disk Drive
pdisk1 Available 1P-18-A01B-04-P SSA160 Physical Disk Drive
pdisk2 Available 1P-18-A01B-08-P SSA160 Physical Disk Drive
pdisk3 Available 1P-18-A01B-06-P SSA160 Physical Disk Drive
pdisk4 Available 1P-18-A01B-01-P SSA160 Physical Disk Drive
pdisk5 Available 1P-18-A01B-07-P SSA160 Physical Disk Drive
pdisk6 Available 1P-18-A01B-02-P SSA160 Physical Disk Drive
pdisk7 Available 1P-18-A01B-05-P SSA160 Physical Disk Drive
root@ibm0:/#lsdev -Cc pdisk
pdisk0 Available 1P-18-A01B-05-P SSA160 Physical Disk Drive
pdisk1 Available 1P-18-A01B-03-P SSA160 Physical Disk Drive
pdisk2 Available 1P-18-A01B-04-P SSA160 Physical Disk Drive
pdisk3 Available 1P-18-A01B-08-P SSA160 Physical Disk Drive
pdisk4 Available 1P-18-A01B-06-P SSA160 Physical Disk Drive
pdisk5 Available 1P-18-A01B-01-P SSA160 Physical Disk Drive
pdisk6 Available 1P-18-A01B-07-P SSA160 Physical Disk Drive
pdisk7 Available 1P-18-A01B-02-P SSA160 Physical Disk Drive