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290 CHAPTER 5: SYSTEM CONFIGURATION
The System Configuration TAPI settings do not apply to TAPI Route Points.
For security reasons, the NBX system always requires that an external
application supply a password to access a TAPI Route Point.
Disk Mirroring The SuperStack 3 NBX Solution supports disk mirroring, using RAID1
technology, to provide data security and throughput speed. When the
mirror disk is fully partnered with the master system disk, all data that is
written to the master disk is also written to the mirror disk. If data is read
from disk, the software has the option of reading from either disk, which
can improve data access times.
If either disk fails in a fully mirrored system, the system software switches
to use only the remaining good disk, and system operation continues.
Status information is available on the Call Processor front panel LEDs to
indicate when a disk has failed and which disk to replace. After you
replace a failed disk and restart the system, the software starts bringing
the new disk up to a fully mirrored state. The system typically takes from
30 to 90 minutes to complete the mirroring process, depending on the
amount of data on the master disk.
Adding a Mirror Disk If your SuperStack 3 NBX system uses a single disk, you can add a mirror
disk. The disk you add must have at least the same storage capacity as
the disk in the system. You must obtain a disk mirroring license to convert
a single-disk system to use disk mirroring. You need a Phillips screwdriver
to complete this process.
CAUTION: Adding a mirror disk involves a system database backup and a
system shutdown. 3Com advises that you add a mirror disk during
nonbusiness hours.
To add a mirror disk:
1 Back up the database on the system.
a Select Operations > Manage Data.
b Click Backup and specify a location for the backup file.
2 Install the disk mirroring license.
a Obtain the license key from your dealer.
b Select Operations > Licenses > Add License.
c Type the license key in the two license key fields.