EMC Symmetrix DMX-3, Руководство по эксплуатации продукта

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Availability and integrity features 35
Introducing the Symmetrix DMX-3
Availability and integrity features
The Symmetrix DMX-3 includes key enhancements that improve the
reliability, availability, and serviceability.
Table 3 on page 35
highlights many of the Symmetrix DMX-3 availability and integrity
features.
Table 3
Availability and integrity features roadmap (1 of 2)
Feature Document sources
Proactive Error Detection and Remote Support • “Maintaining data integrity” on page 175
• “Error Checking and Correction, and data integrity protection”
on page 176
• “Disk error correction and error verification” on page 177
• “Global memory director data integrity logic” on page 178
Support for online Enginuity upgrades and updates • “Nondisruptive Enginuity upgrades” on page 173
Fully fault-tolerant design with redundant critical components
and concurrent maintenance support • “Reliability and availability features” on page 162
Channel director redundancy with end-to-end automatic
channel failover and load balancing • “Channel director redundancy” on page 163
Internal Control Data Path redundancy • “Internal control data path redundancy” on page 164
Fibre Channel back-end functionality featuring redundant disk
directors, disk channels, and disk ports • “Fibre Channel back-end redundancy” on page 164
• “Fibre Channel arbitrated loop design” on page 165
Dual-initiator disk directors • “Dual-initiator feature” on page 168
2N power supply redundancy • “Redundant power subsystem” on page 169
Vaulting • “Configuration rules for vault devices” on page 68
• “Vaulting” on page 170
Redundant Global Memory • “Redundant global memory” on page 162
Advanced Communications and Environmental Control
Modules • “DMX-3 communications and environmental control” on
page 89
DMX-3 security features • “Symmetrix Service Credential, Secured by RSA” on page 182
• “Symmetrix Audit Log” on page 185
• “RSA enVision log security” on page 185
• “EMC Certified Data Erasure for Symmetrix Disks” on
page 186
• “IPsec security features” on page 187
Symmetrix Mirroring option • “Disk mirroring (RAID 1) concepts” on page 191