Toshiba Tekbright 700P - Manual (Page 184)

188 Managing the Server
Using the second disk drive
5.375 x 8.375 ver 2.1
Using the second disk drive
The Magnia SG20 can be purchased with either one or two
drives. These drives are the only user serviceable parts in the
system. If you purchased a server with a single drive, you can
purchase a second drive from Toshiba at a later time to
upgrade your system.
Primary disk drive usage
Your primary disk drive has a size of 15 GB or more
(depending on the configuration purchased). However, not all
of this space is usable for general file storage. Several
hundred megabytes are set aside and used for system files and
other requirements to support the various features of the
server. The remaining space is available for you to use as
general file storage.
Secondary disk drive usage
A second disk drive can be used in two different ways,
depending on your network needs.
❖ A second disk drive can be configured to contain periodic
snapshots of your primary disk drive.
This snapshot mechanism makes a complete copy of the
entire primary disk drive on a periodic basis. If
something goes wrong with your primary disk drive, you
can move the secondary disk drive in to the primary disk
drive’s slot, reboot the server, and the system will resume
operation with all files intact as of the last time a
snapshot was taken.
NOTE: This process is commonly referred to as mirroring.
However, it should not be confused with RAID mirroring, where all
files are constantly mirrored on a second disk drive, which can
significantly affect performance.