Replacing hardware at the disaster site
If hardware components have to be replaced, you must replace them using their individual hardware replacement and installation guides.
Before you begin
The storage controllers must be powered off or remain halted (showing the LOADER prompt).
- Replace the components as necessary.NoteIn this step, you replace and cable the components exactly as they were cabled prior to the disaster. You must not power up the components.
If you are replacing... Perform these steps... Using these guides... FC switches in a MetroCluster FC configuration Install the new switches.
Cable the ISL links.
Do not power on the FC switches at this time.
IP switches in a MetroCluster IP configuration Install the new switches.
Cable the ISL links.
Do not power on the IP switches at this time.
Disk shelves Install the disk shelves and disks.
Disk shelf stacks should be the same configuration as at the surviving site.
Disks can be the same size or larger, but must be of the same type (SAS or SATA).
Cable the disk shelves to adjacent shelves within the stack and to the FC-to-SAS bridge.
Do not power on the disk shelves at this time.
SAS cables Install the new cables.
Do not power on the disk shelves at this time.
FC-to-SAS bridges in a MetroCluster FC configuration Install the FC-to-SAS bridges.
Cable the FC-to-SAS bridges.
Cable them to the FC switches or to the controller modules, depending on your MetroCluster configuration type.
Do not power on the FC-to-SAS bridges at this time.
Controller modules Install the new controller modules:
The controller modules must be the same model as those being replaced.
The controller modules must not have previously been part of either cluster within the MetroCluster configuration or any previously existing cluster configuration.
If they were, you must set defaults and perform a
wipeconfig
process.Ensure that all network interface cards (such as Ethernet or FC) are in the same slots used on the old controller modules.
Cable the new controller modules exactly the same as the old ones.
The ports connecting the controller module to the storage (either by connections to the IP or FC switches, FC-to-SAS bridges, or directly) should be the same as those used prior to the disaster.
Do not power on the controller modules at this time.
- Verify that all components are cabled correctly according the MetroCluster Installation and Configuration Guide for your configuration.