# lsdev -Cc disk
hdisk0 Available 00-00-00 SAS Disk Drive    ## hdisk0 146GB
hdisk1 Available 00-00-00 SAS Disk Drive     ## hdisk1  600GB
hdisk2 Available 00-00-00 SAS Disk Drive    ## hdisk1  600GB

# lspv
hdisk0          00fa978a8aed682e                   None 
hdisk1          00fa979948d38d24                   None
hdisk2          00fa978ad3c57268                   rootvg          active

## hdisk1 单盘可做VG和文件系统 ，盘没有任何问题

# smitty extendvg 出现如下报错，force 打开，（清过改过PVID 信息如此）

Command: failed        stdout: yes           stderr: no

Before command completion, additional instructions may appear below.

/usr/sbin/extendvg: LVM system call returned with
        error code (-271).
0516-792 /usr/sbin/extendvg: Unable to extend volume group.