Powerconnect 5548 failover with 2 switch

Hi everyone,

This is my first post here and I am not a network engineer. Simply a 1 man ban trying to learn the hard way.

I have bought a server 1x Dell PowerEdge C6220 server, 2x Dell PowerConnect 5548 and 1x Dell PowerVault MD3200i storage for a really good price in view to set up a XenServer cluster of 4 nodes. I need help understanding how the PowerConnect failover work.

As per the PC5548 manual, I have stacked the 2x switch via the HDMI connection and I can see both units on the web GUI. I am planning to create the following VLANs:

VLAN1 - for all IPMI connection so it is only accessible via VPN
VLAN2 - for iSCSI subnet A of the MD3200i
VLAN3 - for iSCSI subnet B of the MD3200i
VLAN4 - XenServer public facing/internet access

So far I have connected all the cat5 cables to the first switch (master) but I don't understand how the failover work because I have no cables connected from switch 2 to any servers or the first switch. If switch 1 fails, how can the second server take over the ports that are connected? Do I need to phisyclyunplug all the cat5 from 1 switch and plug them back to the secon switch?

I know this might seem stupid question you many of you but please bare with me as I am very much in learning mode.

Also, does the VLAN3 need to be truck mode? The cable connects my XenServer node1 to the switch and inside the XenServer I will have a virtual switch for the internal VMs.

For VLAN2&3 I understand that the switch will know it is iSCSI but what type of VLAN do I need to setup (access, general, trunk)?

I welcome any advise.

Thank you