Cisco Cisco UCS B440 M1 High-Performance Blade Server 白皮書
© 2012 Cisco and/or its affiliates. All rights reserved. This document is Cisco Public.
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vlan 729 (this is the Layer 2 interface)
ip igmp snooping querier 10.xxx.xxx.xxx
no ip igmp snooping link-local-groups-suppression
Jumbo Frames Setup
To increase performance for Oracle RAC communication, jumbo frames were enabled on the Oracle RAC
interfaces. To help ensure optimal performance during steady-state and failure situations, jumbo frames need to
be enabled on all of the following:
●
Oracle RAC Linux OS RAC interface level
●
Cisco UCS vNICs that have been set up for Oracle RAC connections
●
Cisco Nexus 7000 Series interfaces connecting to the C3 Cisco UCS database cluster
The configuration for the Cisco Nexus 7000 Series Switch is as follows:
(global command, enabled by default)
system jumbomtu 9216
(configured on the Layer 2 PortChannels to the Cisco UCS cluster, plus Layer 2 crossover
link between GW1 and GW2)
interface port-channel xx
mtu 9216
Jumbo frames have to be enabled in Cisco UCS at the vNIC level for Oracle RAC interconnect. Please see the
Cisco screen image in
Figure 14
on how to setup Jumbo frames in Cisco UCS Manager.
Jumbo frames were not enabled on the public-network interfaces of the Oracle database cluster.
Cisco UCS Storage Design
C3 Storage Infrastructure
●
Dedicated EMC storage frame
◦
Eight-engine EMC Symmetrix VMAX frame 0553
◦
960 x 450-GB 15,000-RPM Fibre Channel drives
◦
EMC Symmetrix VMAX Enginuity Version 5875
◦
Array front-end adapters balanced across 12 database nodes
◦
Two single-engine EMC Symmetrix VMAX frames for redo log 1161/1166
●
Cisco Richardson Data Center SAN infrastructure upgraded to meet C3 load
◦
Fabric bandwidth increased
◦
Extensive load tests performed for validation
◦
Read I/O tested to maximum 10 GBps