Best practices for adding and removing drives
You should follow these best practices for adding drives to the cluster:
• Add all the block drives and ensure that block syncing is complete before you add the slice drives.
• For Element software 10.x and later, add all the block drives at once. Ensure that you don’t this for more
than three nodes at once.
• For Element software 9.x and earlier, add three drives at once allowing them to completely sync before
adding the next group of three.
• Remove the slice drive and ensure that slice syncing is complete before removing the block drives.
• Remove all the block drives from a single node at once. Ensure that all block syncing is complete before
you move on to the next node.
What you’ll need
• You have contacted NetApp Support. If you are ordering a replacement, you should have a case open with
NetApp Support.
• You have obtained the replacement node.
• You have an electrostatic discharge (ESD) wristband, or you have taken other antistatic protection.
• If you need to perform the Return to Factory Image (RTFI) process, you have obtained the USB key.
NetApp Support can help you decide if you need to perform the RTFI process.
• You have a keyboard and monitor.
• You have removed the failed node correctly from the cluster.
• If a DIMM has failed, you have removed drives before you remove the node from the cluster.
About this task
Alarms in the Element UI alert you when a host fails. You must match the serial number of the failed host from
the VMware vSphere Web Client with the serial number on the sticker at the back of the node.
Steps
1. Locate the service tag at the front of the failed chassis.
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