Ask about turning RMAN (use ASM) with MAXOPENFILES

 Hi all,

   My primary db (11.1.0.7.0 - 64 bit) is RAC and use ASM (include two diskgroups), my server include 24 cores. My db has size about 215G, and archives are generated about 110G. I use RMAN to backup db to DISK with 4 channels.

run

{

configure device type disk parallelism 4;

allocate channel rman_bk_ch01 type disk;

allocate channel rman_bk_ch02 type disk;

allocate channel rman_bk_ch03 type disk;

allocate channel rman_bk_ch04 type disk;

backup incremental level 0 format '/backup/%d_%s_lev0.dbk' database plus archivelog;

release channel rman_bk_ch01;

release channel rman_bk_ch02;

release channel rman_bk_ch03;