Notes:
• Do not turn off the LinkStation or disconnect a drive while formatting.
• The following file systems can be formatted from Settings.
Internal Drive ext4
External Drive ext3, ext4, exFAT
Drive Replacement
If a drive fails, NAS Navigator2 and Settings will show an error message. The drive will need to be replaced for the
unit to function properly. After the drive is replaced, you will need to rebuild the RAID array.
Notes:
• While the LinkStation is powered on, never unplug or remove drives without dismounting them first, and never
replace a running drive. Power down the LinkStation before changing the drive.
• For the replacement drive, use a Buffalo OP-HDBST series drive for the LS520D and LS520DE series. If using the
LS520DN series, use a Buffalo OP-HDBN series drive as the replacement drive. For LS520DE, you can also use
compatible non-Buffalo drives listed on the Buffalo website. The new drive should be the same size or larger as
the replaced drive. If a larger drive is used, the extra space will not be usable in a RAID 0 array. However with RAID
1, you can expand the current RAID array capacity if you replace a drive with a larger-sized drive. To expand the
capacity, refer to the “Expanding RAID Array Capacity” section above for the procedure.
• If there is existing data on the replacement drive, back it up as all data on the drive will be lost during the
replacement process.
• If sending a defective drive to Buffalo for replacement, please keep the cartridge as Buffalo will only replace the
drive and not the cartridge.
• To avoid damaging the LinkStation with static electricity, ground yourself by touching something made of metal
before handling any sensitive electronic parts.
• Do not change the order of the drives in the LinkStation. For example, pulling out drive 1 and replacing it with
drive 2 may cause data to be corrupted or lost.
Step 1 - Replacing a Drive
1 Turn the LinkStation off and remove all cables.
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