Ask about backup to share disk target by RMAN

 Hi all,

   My db has size 185GB, version 11R1 64 bit and run on Linux 64.

   I used disk that mounted to store backups but I received some errors. I tried to backup datafile 93 (about 11GB) and archivelogs. My RMAN script like:

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   run

{

crosscheck archivelog all;

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 '/u01/app/backup/xbank_%t_%s_level0.dbk' datafile 93 plus archivelog;

sql 'alter system archive log current';