ZyXEL Communications NAS540, User Manual

Page: 51 / 372

Chapter 8 Storage Manager
Cloud Storage User’s Guide
51
Change RAID Type
You can change the following RAID types without losing stored data. This can help you manage your
storage capacity as you add more disks.
Expand Volumes or Disk Groups
As your content grows, you can do the following to expand the storage capacity of a volume or disk
group without losing stored data.
Use the Volume screen to configure and manage internal volumes. From the Internal Storage
screen, click Volume to open the screen as shown.
Table 9
Internal Volumes
RAID TYPE WHAT YOU CAN CHANGE IT TO
Basic RAID 1
RAID 1 RAID 1 with a hot spare or RAID 5
RAID 5 RAID 5 with a hot spare or RAID 6
Table 10
Expand Volumes and Disk Groups
EXPANSION
METHOD
DESCRIPTION
Using
unallocated disk
space You can add more storage space to a volume if there is still some space unallocated on the
same disk group.
Adding disks You can add one or more disks to a JBOD, RAID 1 or RAID 5.
The hard disk you want to add must have capacity equal to or greater than the smallest
disk in the volume or disk group.
Replacing with
larger disks You can replace smaller disks in a RAID 1, RAID 5, or RAID 6 with larger disks.
Replace disks one-by-one.
Replace the smallest disk in the volume or disk group first.
After replacing a disk, you must use the Internal Storage screen’s Manage link to repair
the volume.
Wait for the repair process to complete before you replace another disk.