Managing Serviceguard Extension for SAP, December 2007

SAP Supply Chain Management
Planning the Volume Manager Setup
Chapter 4 213
Option 4: Hot Standby liveCache
Two liveCache instances are running in a hot standby liveCache cluster
during normal operation. No instance failover takes place. This allows to
keep instance-specific data local to each node. The cluster design follows
the principle to share as little as possible.
The following directories are relevant:
Table 4-5 File System Layout for Hot Standby liveCache
Access Point Package Mount Point
Volume
Manager
local none /sapdb/<LCSID> any
local none /sapdb/programs any
local none /sapdb/data any
local none /var/spool/sql/ini any
local; with XP
BCVs between
the nodes
none /sapdb/<LCSID>/datan must be
LVM-based
shared disk and
CFS
SG-CFS-DG-<LCSID>logn
SG-CFS-MP-<LCSID>logn
/sapdb/<LCSID>/logn must be
CVM-based