Yes and No, we have also a large number of Oracle RACs and Single instances on Netapp NFS filers that work very very well. The stability of these systems is amazing and thanks to that I sleep very well :) Nilo Segura Oracle Support - IT/DB CERN - Geneva Switzerland On Mon, Mar 8, 2010 at 9:49 AM, Martin Berger <martin.a.berger@xxxxxxxxx> wrote: > Stefano, > > at least CERN uses ASM. > https://twiki.cern.ch/twiki/bin/view/PDBService/HAandPerf > And i do not see ASM as additional layer, it reduces one: > (ASM instead of Volume Manger + FileSystem). > > Can you please specify the 'tests over ASM usually fails', so I can learn > from these? > thank you, > Martin > > On Mon, Mar 8, 2010 at 09:34, Stefano Cislaghi <s.cislaghi@xxxxxxxxx> wrote: >> >> Hello, >> >> despite all data and stats IMHO ASM sucks. ASM is an additional layer, >> managed through an Oracle instance to manage files in a strange manner.I've >> never seen a big oracle installation, for example in a TLC environment where >> I work using ASM. All tests over ASM usually fails. Actually use of pure raw >> devices should be preferable, better if using 8gbit fiber instead iscsi on a >> 1gb ethernet. Yes, managing raw devices is not easy and usually is not a DBA >> work. Also, type of storage is really important. >> >> Ste >> >> -- >> http://www.stefanocislaghi.eu >> >> > > -- //www.freelists.org/webpage/oracle-l