IBM Db2 - The Ultimate Database for Cloud, Analytics & Mobile
Is maintenance needed in Db2 for z/OS (V11 or V12) for a migration to
- the current hardware z15
- or the current operating system z/OS 2.4 ?
As of today there are no APARs/PTFs needed to tolerate such a migration.
The following key z15 features are exploited by Db2 for z/OS:
- Faster SSL/TLS handshake performance on IBM z15 with Crypto Express7S compared to z14 with Crypto Express6S (no change in Db2 required)
- System Recovery Boost, especially for the transaction/batch backlog of Db2 (no change in Db2 required)
- Integrated Accelerator for zEDC (LOB compression in Db2 12 for z/OS, no additional change required).
Of course besides the above features, Db2 for z/OS has automatically benefit of improved CPU power and real storage enhancements of the z15.
Db2 12 supports 16TB in total buffer pool size. z15 supports 40 TB maximum per system. z/OS 2.4 supports 4TB per LPAR.
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