Advantech DNS-3200 - Manual (Page 105)

87 Chapter 7
Notes: 1. When it is assured that the system is function-
ing correctly after undergoing major changes
(e.g. software installation, hardware modifica-
tion), the backup operating system should be
updated (by deleting the backup operating sys-
tem array, migrating the primary operating sys-
tem array as RAID1N and splitting the primary
array). This assures that the backup operating
system is always up-to-date.
2. If there is more space available, you may build
more backup operating systems at different
times, each identified by a date. Whenever nec-
essary, select the required operating system (you
want to use to turn on the system) and cancel the
hidden status.