I would first use asmcmd to look for those dead files you suspect to have. As for the internals, that sounds strange compared with what I typically see in my ASM diskgroups. Anyway you can get query for more info on all allocated ASM files, including metadata from x$kffil and x$kfdat (see examples below): select group_kffil group#, number_kffil file#, filsiz_kffil filesize_after_mirr, filspc_kffil raw_file_size from x$kffil; select group_kfdat group#,FNUM_KFDAT file#, sum(1) AU_used from x$kfdat where v_kfdat='V' group by group_kfdat,FNUM_KFDAT,v_kfdat; I hope this can be of help. Cheers, Luca -----Original Message----- From: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of Peter McLarty Sent: Friday, March 16, 2007 1:44 AM To: oracle-l@xxxxxxxxxxxxx Subject: ASM monitoring in Enterprise Manager Hi ASM gurus I am trying to find out why when in EM and I look up the page for the Diskgroup the pie graph Disk Group Usage shows the an amount used for internal that is currently 28%. I have my suspicions that this is from an earlier process of when we refreshed some databases that we now have dead files in ASM. Is there a way to find out the reason ASM wants 28% of my storage for internal? I cant find any reference to this in any documentation ASM is on 10.0.2.3 Cheers -- Peter McLarty Database Administrator Student System Upgrade Project Central Queensland University Email: p.mclarty@xxxxxxxxxx Phone: 07 4923 2797 Fax: 07 4923 2721 Mobile: 04 0209 4238 -- //www.freelists.org/webpage/oracle-l -- //www.freelists.org/webpage/oracle-l