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Firmware, Fully Connected Controller Failover

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Figure 2 Fully Connected Controller Failover 2.3.4 Firmware Each EqualLogic PS Series array runs a core operating system in firmware that provides all of the PS Series features and functionality. The firmware version is defined using a version number and will be updated from time to time as new features are added or for general maintenance improvements. The firmware version number takes the following form: "X.Y.Z":  "X" is used to identify the "major" release number. This changes when there are very significant changes in the features and functionality.  "Y" is the "minor" release number. This changes as new minor features or improvements in existing features are made for a given major release.  "Z" denotes maintenance releases. This changes whenever a maintenance release level is released to resolve any identified technical or usability issues. Dell EqualLogic Configuration Guide v11.3 7

Section	Page
1 Introduction	6
1.1 Audience	6
1.2 Document Structure	6
2 PS Series Storage Arrays	7
2.1 Array Models	7
2.2 Feature Comparison	8
2.3 Controllers	9
2.3.1 Controller Types	9
2.3.2 Controller Redundancy	10
2.3.3 Controller Failover	10
2.3.4 Firmware	12
Firmware Upgrade	13
2.4 RAID Policies	14
2.4.1 RAID 5	14
2.4.2 RAID 6	15
2.4.3 RAID 10	16
2.4.4 RAID 50	17
3 Peer Storage Operations	19
3.1 Groups	19
3.2 Pools	19
3.3 Volumes	20
3.3.1 Volume Attributes	21
3.3.2 Volume Features	22
3.3.3 Thin Provisioning	22
3.3.4 Snapshots	23
3.3.5 Cloning	23
3.3.6 Replication	24
Example Replication Topologies	25
Sizing Replica Reserve and Delegated Space	28
3.3.7 Clustering	29
4 SAN Design	30
4.1 Implementation of Standards	30
iSNS Support	30
4.2 General Requirements and Recommendations	30
4.2.1 Quality of Service (QoS)	31
4.3 Ethernet Switches and Infrastructure	32
4.3.1 Connecting SAN Switches in a Layer 2 Network	33
Stacking Switches	33
Non-Stacking Switches	34
Using a LAG to Connect Stacked Switches	34
4.3.2 Sizing Inter-Switch Connections	35
4.3.3 Comparing Inter-Switch Connection Types	36
4.4 Host Configuration Guidelines	37
4.4.1 Recommendations for Host Connectivity in Redundant SANs	37
4.4.2 Multi-Path I/O	38
EqualLogic MPIO Requirements	39
EqualLogic MPIO General Recommendations	39
Configuring Microsoft Windows MPIO	39
Configuring VMware vSphere 4.1 Multipathing Extension Module (MEM)	39
4.5 EqualLogic iSCSI SAN Design	40
4.5.1 Redundant SAN Configuration	40
4.5.2 Partially Redundant SAN Configurations	41
Single Array Controller Configurations	41
Dual Array Controller Configurations	42
4.6 Integrating 1GbE and 10GbE SANs	43
5 M1000e Blade Chassis Integration	45
5.1 Guidelines for Stacking Switches in a Blade Chassis	45
5.2 Single M1000e Enclosure Integration	46
5.3 Multiple M1000e Enclosure Integration	46
Dual I/O Module Stacks	46
Single I/O Module Stack	47
5.4 M1000e Ethernet Pass-Through I/O Module	48
5.5 External Tier Stacking	48
5.6 Stack to Stack Interconnect	48
5.6.1 10GbE Uplink Recommendations	48
5.6.2 1GbE Uplink Recommendations	49
Appendix A Network Ports and Protocols	52
A.1 Required Ports and Protocols	52
A.2 Optional Ports and Protocols	52
Appendix B Recommended Switches	54
B.1 Recommended 1GbE Switches	54
B.2 Recommended 10GbE Switches	55
Appendix C Supported iSCSI Initiators	56
C.1 Hardware iSCSI Initiators (HBAs)	56
C.2 Software iSCSI Initiators	57
C.3 Network Interface Controllers	58
Appendix D PowerConnect 54xx Switch Configuration	59
D.1 Disabling iSCSI Optimization Setting	59
D.2 Enabling the PortFast Option to Configure STP Edge Ports	60
D.3 Configuring Flow Control	60
D.4 Disabling Unicast Storm Control	61
D.5 Configuring Jumbo Frames	62
Appendix E PowerConnect 62xx Switch Configuration	63
E.1 Interface Naming Convention	63
E.2 Enabling the PortFast Option to Configure STP Edge Ports	64
E.3 Configuring Flow Control	64
E.4 Disabling Unicast Storm Control	64
E.5 Configuring Jumbo Frames	65
Appendix F Cisco IOS based Switch Configuration	66
F.1 Enabling the PortFast Option to Configure STP Edge Ports	67
F.2 Configuring Flow Control	67
F.3 Disabling Unicast Storm Control	68
F.4 Configuring Jumbo Frames	68

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Dell EqualLogic Configuration Guide v11.3

2.3.4

Firmware

Each EqualLogic PS Series array runs a core operating system in firmware that provides all of the PS

Series features and functionality. The firmware version is defined using a version number and will be

updated from time to time as new features are added or for general maintenance improvements.

The firmware version number takes the following form: "

X.Y.Z



" is used to identify the "major" release number. This changes when there are very significant

changes in the features and functionality.



" is the "minor" release number. This changes as new minor features or improvements in

existing features are made for a given major release.



" denotes maintenance releases. This changes whenever a maintenance release level is

released to resolve any identified technical or usability issues.

Figure 2 Fully Connected Controller Failover