Thanks Niall, In the AWR I am looking at this section. File IO Stats - ordered by Tablespace, File Tablespace Filename Reads Av Reads/s Av Rd(ms) Av Blks/Rd Writes Av Writes/s Buffer Waits Av Buf Wt(ms) On Tue, May 17, 2011 at 10:55 PM, Niall Litchfield < niall.litchfield@xxxxxxxxx> wrote: > Which statistic are you looking at? There are a number of read statistics. > > On Wed, May 18, 2011 at 1:15 AM, K R <kp0773@xxxxxxxxx> wrote: > >> All, >> >> What is the range I should be looking at for file i/o average read in >> milli second in a ASM environment. >> >> I see some of my database have average read between 3ms and 8ms . >> >> appreciate any suggestion >> >> thanks >> Kart >> > > > > -- > Niall Litchfield > Oracle DBA > http://www.orawin.info >