Using APA to Build a Screaming Fast Network Server Connection for HP-UX 11i v2 and v3

-- Page 12 -- Hewlett Packard
A key difference between CPU-based link aggregates and IP or MAC-based link
aggregates is that IP and MAC-based aggregates are designed to work with
configurations involving a large number of client accesses to the server. The CPU-based
link aggregate is designed to manage the uninterrupted transmission of data directly
between servers. (To ensure predictable performance results, HP highly recommends
that the CPU-based algorithm only be used with processor affinity.)
BENEFITS:
• Additional bandwidth allows simultaneous back-ups. Overall server processing time
is reduced because parallel processing is possible
• Client Intranet access to back-end Database information is faster and more reliable
with APA’s automatic fault detection and recovery features.
Hot Standby Automated Fail-Over and HP MC/Service Guard
APA offers fully automated single-server fail-over using Ethernet, FDDI or Token Ring
Link Aggregates. For multi-server fail-over support, APA is designed to work with the
HP MC/Service Guard product for HP 9000 servers.
Can you relate to this? The phone rings, and you sit up in your chair. “You know who had
a catastrophic failure last month. They lost their web presence for two whole days.” You
remember the news as the voice continues. “Our people in acquisitions just picked them
up for a song and we need you to fly down there first thing in the morning and check it out.
I think the problem is in their fail-over configuration. Let us know your arrival time. We’ll
have someone meet you at the airport.”