My Oracle Support Banner

What is asmcmd Iostat READ_TIME And WRITE_TIME measured in? (Doc ID 1925490.1)

Last updated on MAY 20, 2021

Applies to:

Oracle Database - Enterprise Edition - Version to [Release 11.2]
Oracle Database Cloud Schema Service - Version N/A and later
Gen 1 Exadata Cloud at Customer (Oracle Exadata Database Cloud Machine) - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Oracle Database Cloud Exadata Service - Version N/A and later
Information in this document applies to any platform.


 The "asmcmd help iostat" command reports that Read_Time and Write_Time are in hundredths of a second in the Oracle Automatic Storage Management Administrator's Guide 11g Release 2 (11.2), Chapter ASMCMD Disk Group Management Commands, Table 12-32 Attribute descriptions for iostat command output.

However, if you look at the V$ASM_DISK_STAT view it states the results are in seconds for the READ_TIME and WRITE_TIME.

They both show the same value when used on an Oracle Database. Which one is correct?




To view full details, sign in with your My Oracle Support account.

Don't have a My Oracle Support account? Click to get started!

In this Document

My Oracle Support provides customers with access to over a million knowledge articles and a vibrant support community of peers and Oracle experts.