Monitor RAID Rebalance

The Monitor RAID Rebalance screen displays information about the current status of RAID Rebalance.

The options available on the Monitor RAID Rebalance screen change depending upon the RAID Rebalance state.

RAID Rebalance Status

RAID Rebalance may be in one of the following states:

• Rebalance Not Needed - RAID Rebalance is not currently running and no classes of storage report requiring rebalance.
• Rebalance Needed - One or more classes of storage on the system reports requiring a rebalance.
• In Progress - RAID Rebalance is currently in progress.
• Final Pass In Progress - RAID Rebalance is completing its final pass.
• Rebalance Complete - RAID Rebalance has been completed successfully.
• Rebalance Failed - RAID Rebalance has been performed, but one or more classes of storage still reports requiring a rebalance.
• Rebalance Stopping - A user has requested that RAID Rebalance be stopped.
• Rebalance Stopped - RAID Rebalance has been stopped prematurely by a user.

RAID Rebalance Options

The following options may appear depending upon the current state of RAID Rebalance:

• Rebalance Now - Starts the RAID Rebalance process.
• Schedule Rebalance - Allows RAID Rebalance to be scheduled for a later time.
• Stop Rebalance - Stops the RAID Rebalance process after the current pass. This may take several minutes.
• Close - Closes the RAID Rebalance wizard. If RAID Rebalance is in progress, it will continue in the background until complete.

RAID Rebalance Information

The following information is provided when RAID Rebalance is in progress:

• Rebalance Start Time - The time at which the RAID Rebalance was started.
• Estimated Completion Time - The estimate time at which the RAID Rebalance will be completed. This information is not available until the RAID Rebalance has been running for a sufficient amount of time.
• Percent Complete - The percent of allocated space that has been rebalanced.
• Space Remaining - The amount of space remaining to be rebalanced of the initial amount of space needing rebalance.

What You Need to Know

Depending upon the amount of data on your system, RAID Rebalancing may take several days. RAID Rebalancing moves the lowest scoring RAID Devices first; beginning with the smallest RAID Devices. RAID Rebalancing takes longer when the system is running low on space, or when temporary devices must be created to allow for the replacement of existing devices. RAID Rebalancing has the potential to fail or deadlock when moving some RAID devices. If this occurs, it may be necessary to add more disk space to the system to allow RAID Rebalancing to complete.

See the Compellent User Guide for additional information and illustrations of RAID Rebalancing.