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Remove only one disk at a time. Do not remove two or more disks from the appliance at the same time. Removing two or more disks at the same
time might result in an appliance failure and require an RMA of the appliance. This rule applies to both powered and powered down appliances.
If the status of the array is degraded, remove the failed or failing disk drive only. Do not remove an optimally functioning drive.
If your acceptance procedure requires a test of the RAID hot swap feature, remove only one disk drive at a time. You can remove a second disk
only after you replace the first disk and the array completes its rebuilding process.
Do not remove a disk drive if the array is rebuilding. This could result in an appliance failure. Verify the status of the array before removing a disk
drive.
You can hot swap a drive while the appliance remains in production.
Some conditions may require powering down the appliance to replace a failed unit. This normally happens if the RAID controller detects an error
that could damage the array. If you insert a replacement drive into a live array and the controller doesn't recognize the drive, power down the
appliance.
If you inadvertently remove the wrong disk drive, do not immediately remove the disk drive that you originally intended to remove. Verify the
status of the array and replace the disk drive that you removed earlier before removing another drive. Removing a second drive could render the
appliance inoperable.
All disks in the RAID array should have the same disk type for the array to function properly.
In the unlikely event that two disk drives fail simultaneously and the appliance is still operational, remove and replace the failed disk drives one at
a time.
Rebuild time can vary. The rebuild process takes approximately two hours on an idle appliance. On very busy appliances (over 90% utilization),
the disk rebuild process can take as long as 40 hours. On a Grid Master serving a very large Grid, expect the rebuild process to take at least 24
hours.
Replace a failed or mismatched disk only with a replacement disk shipped from Infoblox. When you request a replacement disk, report the disk
type displayed in the panel of the Grid Manager or the Infoblox part number on the disk.DetailedStatus
Notes on Disk Replacement
NIOS saves and restores IP settings and basic network configurations, such as the gateway address, netmask, Grid secret and Grid name, when you
replace a failed disk drive. The replaceable hard disk contains only user data.
Should the hard disk drive in an appliance stop working for any reason, and the appliance is part of an HA pair, it will come offline and its HA partner
system will come online. If the hard disk has an issue and is replaced, the NIOS within the downed system detects the new hard disk and initializes it for
NIOS usage.
If the appliance runs in an Infoblox Grid, the system then communicates with the current Grid Master, downloads any remaining configuration, and then
automatically rejoins the Grid. In most cases, recovery within an HA pair and in the Grid takes only a few minutes after the hard disk is replaced.
If the appliance runs in stand-alone mode without failover, a backup of the user data must be restored or the system configured from scratch. Infoblox
recommends regular backups of standalone appliance data. For more information, refer to topic in the Backing Up and Restoring Configuration Files Infoblox
for your system.NIOS Administrator's Guide
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