Chapter 5 Managing Storage; Raid Arrays; Working With Raid Arrays; Using Jbod - Buffalo LS410D User Manual

Chapter 5 Managing Storage

RAID Arrays

The default RAID mode is RAID 0.
Notes:
• If you change the RAID mode, all data on the array is deleted. This is true for every procedure in this chapter.
Always back up any important data before performing actions that affect your RAID.
• After the RAID mode is changed (except when creating a RAID 0 array or JBOD), the LinkStation performs a RAID
check that will take about 10 hours per TB. File transfers are slower during this period. While the message "RAID
I17 ARRAYx Resyncing" is displayed on NAS Navigator2, do not turn off the LinkStation. If you do, the RAID check
starts over.
RAID 1
Combines 2 drives into a mirrored array. The available space in the array is the capacity of a single drive. Identical data is
written to each drive. If a drive is damaged, data can be recovered by replacing the damaged drive. As long as one drive
in the array remains undamaged, all data in the array can be recovered.
RAID 0
Combines 2 or more hard drives into a single array. The usable disk space is the total space of all drives used. This simple
RAID mode offers faster performance than RAID modes that include parity. If a single drive in the array fails, then all data
in the array is lost.
JBOD
This mode uses the hard drives inside the LinkStation as individual drives. The disk space you can use is the total
capacity of all drives in the LinkStation. If any drive is damaged, then the data on that drive is lost.

Working with RAID Arrays

To change RAID settings, navigate to Drives - RAID in Advanced Settings.

Using JBOD

With JBOD, each hard drive in the LinkStation is addressed separately. To put drives from an array into JBOD mode,
follow the steps below.
1
In Advanced Settings, click Drives.
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