SAN or disk subsystem as a critical system component

The disk subsystem is another critical system component. Disk failures could cause outage to parts of or the entire system.

Careful design and implementation must be placed on the disk subsystem. Your investment in failover configurations could be wasted if the disk subsystem fails.

Areas where disks are used by Sterling™ Order Management System Software include:

• Database datafiles/objects
• Message queues
• Internal disks

To prevent outages due to disk failures, consider configuring the following:

• Disks as RAID groups (except for RAID-0) for redundancy and performance. We prefer RAID 10 or RAID 5 for performance and redundancy.
• Redundant disk systems to tolerate component failures
• Multiple access paths to the disks