Lenovo ThinkSystem DE Series Manual page 95

Chapter 6. Host interface cards
6.1. Requirements for DE2000H or DE4000H HIC replacement
Before you add, upgrade, or replace a host interface card (HIC) in a DE2000H or
DE4000H, review the requirements and considerations.
6.1.1. Procedure overview
The steps to replace a HIC depend on whether you have one or two controllers, as follows:
If your storage array has...
Two controllers
DE2000H/DE4000H
DE2000H/DE4000H (2U24) (duplex)
6.1.2. Requirements for adding, upgrading, or replacing a HIC
If you plan to add, upgrade, or replace a host interface card (HIC), keep the following requirements
in mind.
• You have scheduled a downtime maintenance window for this procedure. The power must be
off when you install HICs, so you cannot access data on the storage array until you have
successfully completed this procedure. (In a duplex configuration, this is because both
controllers must have the same HIC configuration when they are powered on.)
• You have one or two HICs, based on whether you have one or two controllers in your storage
array. The HICs must be compatible with your controllers.
If you have a duplex configuration (two controllers), the HICs installed in the two controller
canisters must be identical. The presence of mismatched HICs causes the controller with the
replacement HIC to lock down when you bring it online.
• You have all cables, transceivers, switches, and host bus adapters (HBAs) needed to connect
the new host ports.
For information about compatible hardware, refer to
(LSIC) or Lenovo Press.
• You have an ESD wristband, or you have taken other antistatic precautions.
• You have a #1 Phillips screwdriver.
88
(DE4000H (4U60),
(2U12) or
You must...
1. Take the controller offline
2. Remove the controller canister
3. Replace the battery
4. Replace the controller canister
5. Bring the controller online
Lenovo Storage Interoperation Center