![Tolis Group bruAPP Administrator'S Manual Download Page 41](http://html1.mh-extra.com/html/tolis-group/bruapp/bruapp_administrators-manual_1125235041.webp)
4. Each disk in the RAID array will be erased, one-by-one. Thus removing any information about
prior RAID volumes, partitions, filesystems, etc.
5. The bruAPP/OS will removed all of the known disks from the bruAPP RAID list.
6. The bruAPP Backup Appliance will reboot.
Upon reboot, the bruAPP will automatically rebuild the RAID array based on the initial configuration that
was applied to the bruAPP when it was configured and shipped from TOLIS Group. It is not possible to
change the RAID configuration using the “Rebuild RAID” option. If the bruAPP was ordered with RAID
5 and a hot spare drive, it will be rebuilt using RAID 5 with a hot spare.
When rebuilding a bruAPP that utilizes RAID 5 or RAID 6, the approximate time frame
that the bruAPP RAID will be unusable or in “degraded” mode while the RAID rebuilds is
approximately one hour for each terabyte of data. A 16-drive bruAPP with 2 TB hard
drives (total 32 TB) will take approximately 32-hours to build using RAID 5 or 6.
bruAPP/OS Date/Time Settings
The bruAPP/OS can have the date and time set one of two ways. The first is through manual operation
of the “System Time” option or by using the Network Time Protocol (NTP). You may use either an in-
house NTP server or an internet NTP server.
The use of an internet NTP server requires that the bruAPP Backup Appliance have out-
bound internet connectivity on port 123, in additional to being able to connect to a DNS
server to resolve internet hostnames to IP addresses. If either service is blocked, the
NTP update via the internet will fail.
NTP Settings
When using the NTP option of the bruAPP, you may either use the default NTP server (0.pool.ntp.org)
or you may specify an internal NTP server. See figure 8.15.
When specifying your own NTP server, you may either use the IP address of the in-house NTP server
system (no DNS required) or you may enter the hostname (DNS required).
Figure 8.15 — Specifying an NTP server for the bruAPP.
If “default” or the field is left blank, the default NTP server of 0.pool.ntp.org will be used, thus requiring
both internet access on port 123 and DNS services to resolve internet hostnames to IP addresses.
41