Specifications

12 Optimizing IBM Netfinity Servers for SAP R/3 and Windows NT
of new functions that improve your value-chain management and time to market.
In addition to these features, SAP will ship two industry-specific solutions as
components of the standard system: R/3 Retail for the retail sector and R/3 Public
Sector for public institutions.
1.8 High Availability
SAP R/3 is a business-critical network application and users are usually sensitive
about unplanned system idle time resulting from server breakdowns. Every
minute of unplanned system idle will cost a company a lot of money.
High availability features are designed to keep the systems running in the case of
a system failure. They are usually integrated in different system areas such as
hardware, operating system and application software. In addition, there are
particular solutions developed to assure high availability in operating systems.
1.8.1 High Availability on the Hardware
IBM Netfinity Servers use fault-tolerant and high-availability subsystems such as
redundant and uninterrupted power supplies and fans, RAID-protected storage,
ECC memory, supported redundant network adapters and hot-swap components.
To avoid power problems, we recommend the use of a Uninterruptible Power
Source (UPS). IBM provides the American Power Conversion (APC) product line
to reach an extra layer of protection with an UPS.
For detailed information on the range of products, please review
IBM PC Server
Technology and Selection Guide,
SG24-4760.
The following is a partial list of high availability features for selected IBM
hardware components:
Netfinity 7000
• ECC memory
• Redundant, hot-swappable and PFA alerting fans
• Optional redundant power supplies
• Hot-swappable and PFA alerting power supplies
• Hot-swappable and PFA alerting hard disk drives
• Auto recovery if a processor failed
• Auto recovery if memory failed
• Advanced System Management Adapter standard
• Supported RAID Adapter
• Supported redundant Network Interface Cards (NIC)
Netfinity EXP10 Storage Expansion Unit 3520
• Redundant and hot-swappable fans
• Redundant and hot-swappable power supplies
• Hot-swappable and PFA alerting hard disk drives
7133 SSA Disk subsystem
• Redundant and hot-swappable fans and power supplies
• Hot-swappable hard disk drives
Advanced System Management Adapter
• Integrated Watchdog Timer