Designing Disaster Tolerant High Availability Clusters, 10th Edition, March 2003 (B7660-90013)

Physical Data Replication for ContinentalClusters Using Continuous Access XP
Creating VxVM Disk Groups for Use with ContinentalCluster/CA Data Replication
Chapter 6 297
11. Check if file system exits, then unmount the file system
# umount /logs