Maintaining Units150 3ware SAS/SATA RAID Software User Guide, Version 9.5.1Unit StatusesThe following is a list of unit statuses you may see in 3DM:• OK. The unit is optimal and is functioning normally.• Rebuilding. The unit is in the process of writing data to a newly addeddisk in a redundant unit, in order to restore the unit to an optimal state.The unit is not fully fault tolerant until the rebuilding is complete. Formore information, see “To verify a unit through 3BM” on page 166.• Rebuild-Paused. The unit is set to rebuild, however scheduling isenabled, and the present time is not during a scheduled timeslot.Rebuilding will start at the next scheduled time slot. Rebuilds are alsopaused for up to ten minutes after a reboot, even during a scheduledtimeslot.• Initializing. The unit is in the process of writing to all of the disks in theunit in order to make the array fault tolerant. For more information, see“About Initialization” on page 158.• Initializing-Paused. The unit is set to initialize, however scheduling isenabled and the present time is not during a scheduled timeslot.Initializing will start at the next scheduled time slot. Initialization is alsopaused for up to ten minutes after a reboot, even during a scheduledtimeslot.• Verifying. The unit is in the process of ensuring that the parity data of aredundant unit is valid. For more information, see “About Verification”on page 162.• Verify-Paused. The unit is set to verify, however, scheduling is enabled,and the present time is not during a scheduled timeslot. Verification willstart at the next scheduled time slot.• Migrating. The unit is in the process of being reconfigured while it isonline. Migration can be used to change the RAID level, to expand thecapacity by adding additional drives, or to change the stripe size. Formore information, see “Changing An Existing Configuration byMigrating” on page 128.Solid red Drive faultThis drive has failed. You should replace it and rebuild the unit.Blinking red Predicted drive fault3ware software predicts that this drive will fail soon. You maywant to replace it.Table 11: Meaning of LED Colors and BehaviorColor Drive Status