OMVS配置

在ADCD1.9中使用OMVS可能需要进行设置：

1. 将数据集HFS.* (VOLUME Z9*)编目
2. 如果直接ISPF 6执行OMVS报下面的错误：

   FSUM2149I No session was started. No pseudo-TTYs are available.+ 
   FSUM2150I Function = stat(), ending name = '/dev/ptyp0000', return value = -1, 
   errno = 129 (X'00000081'), reason code = 0594003D, 
   description = 'EDC5129I No such file or directory.'
   

   在ISPF/6(Command)中, ishell; 重新创建/dev/目录; 同时：

   ISHELL - SETUP (top right hand corner) - Setup Character Special Files, make sure the dir is /dev
   

3. 在ISPF 6中执行OMVS
4. 删除/etc,重新创建/etc以解决下面的问题：

   FSUM2378 The start of the session was not recorded.  
   The slot (in /etc/utmpx) for this terminal could not be updated, 
   or a new slot for the terminal could not be created. 
   Function = pututxline()….