Backups to tape can then easily be made on the mirrored system as required. Suppose a company is mirroring data from two iSeries to one failover server. Server One has the user profile Bob and the designation Programmer. However, Server Two also has the user profile Bob, but this Bob is designated a User. The discrepancy in user profiles creates a conflict on the backup system.
Similar problems can occur at the library and individual object level as well.
User profile problems mean that the high availability solution could be prone to error, and can result in a complicated and lengthy failover procedure to restore production systems after a planned or unplanned outage. Often consulting is required to resolve these conflicts and to automate the failover procedure. With logical partitioning this problem is all but eliminated. Each partition is assigned a separate system name and configured with its own user profiles and libraries. LPAR also enables customers to run production and test environments in a single partitioned iSeries.