Hi folks,
I have a FAS2554 HA system in production with internal shelf with SATA disks. Connection as in a manual:
![netapp1.png netapp1.png](https://community.netapp.com/t5/image/serverpage/image-id/6664i3FC50279E87A3C1F/image-size/medium?v=1.0&px=-1)
I want to add a new additional shelf DS2246 with SSD disks, but I don't understand some moments. In a manual it is written:
![netapp2.png netapp2.png](https://community.netapp.com/t5/image/serverpage/image-id/6666i61AA3CB99B939FF7/image-size/medium?v=1.0&px=-1)
1) I can hot-remove SAS cables?
2) On the picture connection of the full stack. How to connect only one shelf I don't understand.
3) I shall switch off ACP before?
4)
![netapp3.png netapp3.png](https://community.netapp.com/t5/image/serverpage/image-id/6667iB9B1DD72D34A8ECD/image-size/medium?v=1.0&px=-1)
the correct scheme will be?
Thank you!