Running several Oracle 10.2.0.2 Instances on a single Linux host

Question to SAP Solution:

What happen when running several Oracle 10.2.0.2 Instances on a single Linux host but need to patch only one of them.

What happen with the common Oracle files such as in /oracle/client, /oracle/oraInventory and etc?

Similar like in SAP OSS Note #964783.

Solution:

Regarding inquiry on SAP OSS Note #964783, it is clearly stated that it
applies only for Oracle release 9.2 on UNIX/Linux. Therefore, it is not
applicable for Oracle 10.2.0.2 as having in the system.

However, there is only one instant client provided by SAP which is
version 10.2.0.4 therefore what the note proposes is not possible with
the instant client.

Please refer SAP OSS Note #19829 - Oracle Instant Client
 Installation and Configuration.

Having multiple SAP systems with the same kernel version then
able to install one instant client and have all instances pointing to
the same client path.