Configuring A Hot Spare - Buffalo TeraStation TS4800D User Manual

Note: Normally, after a RAID array is created, it is "resynced", which optimizes the array, making it more stable. The
resyncing process takes about 1 hour per terabyte of space in the array. File transfers will be slower during this
period, but the array will remain fully usable. "RAID ARRAY x Resyncing" will be shown on the LCD display during the
resync. If you uncheck "Resync after creating the RAID array", the resync will be skipped. This is not recommended
for RAID 5 arrays, which should always be resynced. Resyncing is not needed for RAID 0 arrays. If the TeraStation is
rebooted during the resyncing process, the resync will begin again from the beginning.
8
Step through the wizard to create the array.
Notes:
• You can also configure RAID settings from Easy Admin.
• After changing the RAID mode, create a shared folder.

Configuring a Hot Spare

If you have a hot spare configured and an array fails, the TeraStation immediately switches over to the hot spare. To use a
hot spare, you need an extra drive that's not part of any array and a RAID 1, RAID 10, RAID 5, RAID 51, or RAID 6 array.
Notes:
• All data on the hot spare drive is deleted when it is configured as a hot spare and again when it changes from a
spare to a drive in the array.
• A hot spare cannot be configured for TeraStation models with only two hard drives. Use RAID 1 instead.
1
In Settings, click Drives.
2
Choose RAID.
3
Choose a RAID array.
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