IBM Storwize V7000 Unified Problem Determination Guide

4. Push the coin cell latch to the side to release the coin cell from its holder, then
remove the expired coin cell.
5. Orient the replacement coin cell with the flat side upwards and place it down
onto the coin cell holder.
6. Gently push the coin cell down into the holder so that it clicks under the latch
and sits parallel with the canister main board.
7. Replace the canister lid as described in “Procedure: Removing and replacing
the lid of a Storwize V7000 Gen2 node canister” on page 285.
8. Reinsert the canister into the slot from which it came.
9. Reconnect all cables.
10. Open the management GUI.
11. Use the management GUI to check that the time and date settings of the
system are correct.
12. In the event log view, if a CMOS battery error is present, run the fix
procedure.
General storage system procedures
This section provides general information about hardware and Fibre Channel link
issues.
Procedure: SAN problem determination
About this task
SAN failures might cause Storwize V7000 Unified volumes to be inaccessible to
host systems. Failures can be caused by SAN configuration changes or by
hardware failures in SAN components.
The following list identifies some of the hardware that might cause failures:
v Power, fan, or cooling
v Application-specific integrated circuits
v Installed small form-factor pluggable (SFP) transceiver
fab10029
Figure 119. Replacing a CMOS Gen2 battery
Chapter 5. Control enclosure 375

IBM Storwize V7000 Unified Specifications

General

Model	IBM Storwize V7000 Unified
Storage Type	Unified Storage
RAID Levels	RAID 0, 1, 5, 6, 10
Form Factor	2U
Drive Types Supported	SAS, SSD
Maximum Drives	504
Network Protocols	iSCSI, FC, FCoE
Drive Bays	24 per enclosure
Host Interface	8 Gb FC, 1 Gb/10 Gb iSCSI
File Protocols	NFS, CIFS
Block Protocols	iSCSI, Fibre Channel
Type	Unified Storage
Maximum Host Ports	16
Operating System Support	VMware, Microsoft Windows, Linux, AIX
Data Services	Thin provisioning, replication
Power Supply	Redundant power supplies
Host Interfaces	8 Gbps Fibre Channel, 10 Gbps iSCSI, 1 Gbps iSCSI