Try restarting management server and check the status.

After reboot the mgt server the status is still the same-(software showing: “Misplaced” ,in the front the device,, system faulted light and disk1 faulted light are on.

Is there some special disk to replace the system disks(0, 1,2,3)?

Any advice?

Thanks

You haven't followed the proper procedure to replace the disk. This message is what it conveys.

Thanks

Rakesh

What I did is that take it off and replace the new one.

Any I replace others like disk 8 , it’s working fine.

Any special?

thanks

Before taking it off, did you copy data on other spare drive ?

Thanks

Rakesh

It’s no data in disk1.

AX4-5 has Disk 0-3 as a Vault Pack when you replace a Vault Drive. Please, make sure the disk model is a part of a Vault Pack. Can you check if the disk is supported as a Vault Disk?

Refer: http://www.emc.com/microsites/clariion-support/ax45-support.htm for service and support guides.