Solution : https://service.sap.com/sap/support/notes/1077887 (SAP Service marketplace login required)
Key words :
HP-UX, 11.11, 11.23, 11.31, 11iv1, 11iv2, 11iv3, vxfs, direct I/O, buffered I/O, IO, buffercache, filecache, UFC, mount options, dbc_max_pct, filecache_max, block size, blocksize, DIO, CIO, JFS, async I/O, Unified File Cache, concurrent I/O
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