IBM Storwize V5030 User Manual

Chapter 10. Copy services 635
10.12.2 Failure scenarios
If one node fails, the other node in the same I/O group takes over the responsibility for all
volumes that are owned by the affected I/O group, as shown in Figure 10-161. The system
can deactivate the write cache, which might influence the overall performance. The multipath
driver can switch the active paths to the named node. The Metro Mirror relationship continues
to operate and provides a synchronous, consistent copy at the remote I/O group.
Figure 10-161 Single node failure in an I/O group

IBM Storwize V5030 Specifications

General

Model	IBM Storwize V5030
Category	Storage
Controller Enclosures	1 or 2
Maximum Drives	240
RAID Levels	0, 1, 5, 6, 10
Virtualization	Yes
Data Compression	Yes
Maximum Hosts	512
Form Factor	2U
Drive Types	SAS, NL-SAS, SSD
Host Interface	8 Gb FC, 16 Gb FC, 10 Gb iSCSI, 12 Gb SAS
Processor Cores	8 per controller