Smart Array 642

Smart Array 642

• U320 increases the bandwidth available to customers
• Smart Array continuity:
  • investment protection with backward compatibility to Ultra2 and Ultra3 interface speed
  • consistent manageability and configurations tools
• 64MB of DDR-RAM memory upgradeable to 128MB of total memory for code, transfer buffers, read and write cache

64MB and 128MB BBWC Enabler

• Increased data protection
  • Modular 64MB or 128MB battery-backed cache module which is transportable between the 641 and 642
  • 72 hours of battery charge, protection long enough to last the weekend
  • Transportable 64MB or 128MB BBWC Enabler protects the write cache from hard boot, power failure, system board failure, and controller board failure

Provides increased server uptime by providing advanced storage functionality:

• Online RAID Level Migration (between any RAID level)
• Online Capacity Expansion
• Logical Drive Capacity Extension
• Global Online Spare
• Pre-Failure Warranty

The following features offer detection of possible failures before they occur, allowing preventive action to be taken:

• S.M.A.R.T.: Self Monitoring Analysis and Reporting Technology first developed at HP detects possible hard disk failure before it occurs, allowing replacement of the component before failure occurs.
• Drive Parameter Tracking monitors drive operational parameters, predicting failure and notifying the administrator.
• Dynamic Sector Repairing continually performs background surface scans on the hard disk drives during inactive periods and automatically remaps bad sectors, ensuring data integrity.
• Environment Tracking for External Storage System monitor

Minimizes downtime, reconstructs data, and facilitates a quick recovery from drive failure

• Recovery ROM: This new feature provides a unique redundancy feature that protects from a ROM image corruption. A new version of firmware can be flashed to the ROM while the controller maintains the last known working version of firmware. If the firmware becomes corrupt, the controller will revert back to the previous version of firmware and continue operating. This reduces the risk of flashing firmware to the controller.
• On-Line Spares: Up to two spare drives can be installed prior to drive failure. If a failure occurs, recovery begins with an On-Line Spare and data is reconstructed automatically. Note: On-Line Spares can only be used with RAID level 1, 1+0, and 5.

Consistency and Upgradeability make the Smart Array family unique in the industry:

• GUI based configuration, management and diagnostic software tools
• Common data format between generations of products
• Data migration between servers and external storage enclosures