HP-UX HB v13.00 Ch-15 - Serviceguard

HP-UX Handbook – Rev 13.00 Page 10 (of 108)
Chapter 15 Serviceguard
October 29, 2013
Figure 2: Continuous operations in spite of multiple network or SAN failures
Network and SAN path rerouting is automated by Serviceguard standby LAN failover or HPUX
multi-pathing so that critical application operations continue unaffected. Since the packages run
on their original nodes, users can still get to data.
The next figure shows the result of Serviceguard moving a package to an adoptive node in the
event of a node failure.
Node2
node1
SAN
Switch
1
Storage Array 1
SAN
Switch
2
USERS
Network
switch
1
Network
switch
2
pkgA
pkgB
pkgA IP
pkgB IP
pkgA
data
Redundant
connections
pkgA
data
pkgB
mirror
Storage Array 2
pkgA
mirror
pkgB
data
Boot &
AppA
AppB
Boot &
AppA
AppB
pkgB
data
UPS POWER
UPS POWER