Zyxel-communications Network Storage NSA-220 Plus Uživatelský manuál stáhnout pdf (Strana 16)

3. If you have two hard disks installed, select a disk configuration.

• JBOD (maximum data storage space)

Uses the whole storage capacity of each disk, even if there are

two hard disks with different storage capacities. With two hard

disks, you can create two volumes (one for each disk) so a

failure of one hard disk should not affect the other. With two hard

disks in a single JBOD volume, you lose all the data on both

disks if one disk fails.

• RAID 0 (not recommended)

Has the highest write speeds but if one disk fails, you lose all the

data on both disks. Only use RAID 0 for non-critical data

requiring high write speeds (like video, graphics, and games).

Total data storage space is limited to twice the capacity of the

smallest disk.

• RAID 1 (recommended)

Mirrors one disk’s data on the second disk for data security.

RAID 1 is slower than RAID 0, but you can recover all of your

data if a disk fails. Total data storage space is limited to the

capacity of the smallest disk.

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Zyxel-communications Network Storage NSA-220 Plus Uživatelský manuál Strana 16