Seagate NAS OS 4 U User Manual page 120

:Follow the instructions below to
.Replace a failed hard drive
.Expand a volume's total storage capacity by replacing a hard drive with a larger capacity hard drive
Important info: If a hard drive that you purchased from Seagate fails, contact Seagate customer
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.support
Hot-swapping
:When replacing or expanding hard drives in a protected RAID volume
.Perform the operation while the NAS is powered on, also known as hot swapping
.Use hard drives that do not contain important data, also known as clean hard drives
If a volume is protected, you can remove an existing hard drive and replace it with a new hard drive while the
product is turned on. This process is referred to as hot swapping. It is highly recommended that you hot swap
.when replacing or expanding hard drives
:Important info
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.It is not possible to replace existing hard disks with lower capacity hard disks
.All data stored on the replacement hard drive will be deleted
Hard drive replacement and expansion
Important info on expanding storage capacity on more than one hard drive: A volume can be
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expanded one hard drive at a time. Follow the steps below for each hard drive that you add to the
.volume. Performing the steps on multiple hard drives at the same time will break the RAID
.Encrypted volume: Unlock the volume before following the steps below
SimplyRAID
.Remove the hard drive that you want to replace .1
.Go to Device Manager > Storage Overview .2
.Important: Do not choose Manage on the Storage Overview page
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On the Storage Overview page, choose the volume that you want to expand or repair with the new hard .3
.drive. If you are replacing a failed or missing disk, the NAS's image shows the missing hard drive
120 10/18/16 Seagate NAS OS 4