Disk I/O performance in a Guest LDOM is less than to a physical I/O device

(Doc ID 1507158.1)

Last updated on SEPTEMBER 23, 2017

Applies to:

Solaris Operating System - Version 10 3/05 to 11 u1 10/12 [Release 10.0 to 11.0]
Solaris Operating System - Version 11.1 to 11.1 [Release 11.0]
Oracle Solaris on SPARC (64-bit)
***Checked for relevance on 23-Sep-2017***

Symptoms

When you perform storage I/O tests (e.g. with dd(1), vdbench or other tools) and measure the I/O data throughput (e.g. with iostat(1))

then you might notice that the I/O performance is higher in the second situation.

Cause

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