User's Manual

In Figure 2, pools are organized by member RAID levels - one pool with the name
RAID-10 consists of RAID 10 members; one pool with the name RAID-5 consists
of RAID 5 members.
Creating Volumes
You must configure the PS5000XV physical disks into usable components, known
as volumes, before you store data. A volume represents a portion of the storage
pool with a specific size, access controls, and other attributes. A volume can be
spread across multiple disks and group members and is seen on the network as an
iSCSI target. Volumes are assigned to a pool and can be easily moved between
pools with no impact on data availability. Additionally, based on the overall
workload of the storage hardware resources within the pool, automatic data
placement and automatic load balancing occurs.
Table 1 shows a sample volume configuration.
Create volumes in PS5000XV array and create access list to allow all host iSCSI
network interfaces to access the volumes.
Table 1. Volumes for Oracle RAC Configuration
Volume Minimum Size RAID Number of Partitions Used For OS Mapping
First Area
Volume
1024 MB 10 One extended
partition with two
logical drives - 50 MB
for Voting Disk and
120 MB for OCR
Voting disk and
Oracle Cluster
Registry
(OCR)
One extended
partition with two
logical drives:
1 x Voting Disk,
1 x OCR
Second Area
Volume(s)
Larger than the
size of your
database
10 One Data ASM disk group
DATABASEDG
Third Area
Volume(s)
Minimum
twice the size
of your second
area volume(s)
5 One Flash Recovery
Area
ASM disk group
FLASHBACKDG
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