[j-nsp] mirror-flash-on-disk on M320 routers with JUNOS 9.5R3

[Muruganandham M]

Dear All,

              Today i configured '*mirror-flash-on-disk*' on 2 M320 routers
and i rebooted the routing engines in order for the configuration to take
effect. But it didnt take effect.

But when i did the same thing in the MX routers it worked fine.

JUNOS: 9.5R3.7

Is there any known issues in this software/hardware combination with regard
to the above mentioned command?

Thanks.
Muruganandham M