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Best Practices for Oracle 11g Backup and Recovery using RMAN and Dell EqualLogic Snapshots

The Oracle ASM disks were configured using the following layout:

ORADB Database files; temporary table space; online redo logs; system related

table spaces such as SYSTEM and UNDO

ORALOG REDO logs

ORAARCH Archive logs

ORAFLASH Flash Recovery Area

ORACRS

ASM Cluster file system (ACFS) for storing Clusterware related

information such as the OCR and voting disks

Table 3 shows the ASM Disk configuration used in each ASM Group for all tests. Figure 2 shows the

containment model and relationships between the EqualLogic pool and volumes, and the Oracle ASM

disk groups and disks.

Table 3 – ASM Disk Group Configuration

ORALOG ORADB ORAARCH ORAFLASH ORACRS

ORALOG1 (10GB)

ORALOG2 (10GB)

ORADB1 (40GB)

ORADB2 (40GB)

ORADB3 (40GB)

ORADB4 (40GB)

ORADB5 (40GB)

ORADB6 (40GB)

ORAARCH1 (80GB)

ORAARCH2 (80GB)

ORAARCH3 (80GB)

ORAARCH4 (80GB)

ORAARCH5 (80GB)

ORAFLASH1 (400GB)

ORAFLASH2 (400GB)

ORAFLASH3 (400GB)

ORAFLASH4 (400GB)

ORAFLASH5 (400GB)

ORACRS (5GB)

Flash Recovery Area is also used by Oracle FLASHBACK DATABASE for storing flashback logs. For more

information, see: http://download.oracle.com/docs/cd/B28359_01/backup.111/b28270/rcmconfb.htm