Add storage capacity to the ExtraHop Trace appliance
Adding additional storage capacity to your Trace appliance enables you to store more packets and extend the amount of lookback available when running packet queries.
Before you begin
Before connecting your extended storage unit (ESU), make sure you have the following items available:- ExtraHop Trace appliance with firmware release 6.2.0 or later. If you have not deployed the Trace appliance, follow the instructions in the ExtraHop Trace appliance deployment guide.
- ExtraHop licence for the extended packetstore feature
- ExtraHop extended storage unit for the ExtraHop Trace appliance
- Power cables
- SAS cables
- Rail kit
Set up the extended storage unit
- Install the extended storage unit in your data center with the included rack-mounting kit. The mounting kit supports most four-post racks with either round or square holes.
- Connect the power cables to the power supply units (PSUs).
Shut down the Trace appliance
- Log into the Admin UI on the Trace appliance.
- In the Appliance Settings section, click Shutdown or Restart.
- In the Actions column, click Shutdown.
- On the confirmation page, click Shut down.
Connect the extended storage unit
The extended storage unit connects to the Trace appliance through both of the two enclosure management modules (EMMs). Each EMM has four ports for connecting the SAS cables.
In a redundant configuration, the storage units are linked together in a series, with one of the extended storage units connected to both host bus adapter (HBA) ports on the Trace appliance, as shown in the following figure.

Thank you for your feedback. Can we contact you to ask follow up questions?