RDX 8000 by Quantum - Frequently Asked
Why would I purchase an RDX 8000 instead of a tape
RDX 8000 8-slot removable disk library combines the speed of disk with the
safety/best practices of tape providing the ultimate SMB data protection
solution. This powerful combination makes it a cost-effective disk-based backup
and disaster recovery solution all in one unit.
Also, the RDX 8000 is compatible
backwards and forwards. It can use any RDX cartridge capacity from 160GB to 1TB
available today and any cartridge capacity introduced in the future.
When combined with DATASTOR
deduplication software, the Quantum RDX 8000 offers even faster backups and less
network traffic, reducing data by up to 90%. In addition, customers will use at
least 2/3 fewer cartridges than tape while achieving a greater version history.
Why? Because with tape you overwrite old tapes periodically. With DATASTOR
Shield’s 20:1 deduplication rate you can continue to add to your RDX cartridges
and retain prior versions of files.
How do I connect to an RDX 8000?
The RDX 8000 uses an iSCSI interface that is connected via
Ethernet. You connect the RDX 8000 to your network via a standard Ethernet
connection. In order to connect via iSCSI you use an iSCSI initiator. Microsoft
offers an iSCSI initiator that is included with Windows Server 2008; or there
are several versions for other Windows systems for download from Microsoft.com.
Does the RDX 8000 support RAID?
No. The RDX 8000 uses removable RDX disks and therefore
does not support RAID. RAID is not supported with removable media in general.
would I use JBOD mode vs. tape emulation mode on the RDX 8000?
JBOD mode is recommended. It is faster and requires no
cartridge formatting. JBOD mode is supported by most backup software packages.
Tape emulation mode would be used in the
event that your backup software does not support JBOD mode.
Are both Ethernet ports supported in the RDX
version 2.0 of the firmware, both Ethernet ports will be active for data
transfer. Prior to version 2.0, only Ethernet port 1 is active. Check
Quantum.com for the latest firmware version.
Can I use the RDX 8000 with the
Quantum NDX-8d NAS for disaster recovery?
Yes. This is a recommended configuration and a best
practice. You can back up to an NDX-8d using DATASTOR Shield and then do an
automated copy to the RDX 8000 for redundancy and offsite/offline disaster
recovery. This creates a very cost effective and strong disaster recovery D2D2D
Do I need to purchase an RDX 8000 with DATASTOR Shield to use it with
No. When used
for disaster recovery with the NDX-8d, you can purchase the RDX 8000 without
DATASTOR Shield, at a lower cost. The NDX-8d can perform all the of the backup
related tasks including copying to the RDX 8000.
Which RDX 8000 and NDX NAS
should I purchase if I am using the NDX NAS for primary storage only and the RDX
8000 for backup and disaster recovery?
One option is to purchase the NDX-8d with DATASTOR Shield
already installed and use the NDX-8d for primary storage only and have all
backups directed to the RDX 8000. This way you do not need a separate backup
server to run the software and you have no software to install. However, if you
prefer to have DATASTOR Shield installed on a separate backup server then you
should purchase the RDX 8000 with DATSTOR Shield and the NDX-8.
Can I use DATASTOR Shield to
back up to my backup server and to the RDX 8000 both?
Yes. This is the best configuration for redundancy and
keeping backups available online and available. You can create a D2D2D system by
backing up to your backup server (or an NDX-8d) and then doing an automated copy
to the RDX 8000. You can keep two years or more of data online and available
while keeping a greater version history on RDX. The minimum requirement for
available hard drive space is .75 to 1x (and the recommended is 1.5x to 2x) your
backup size assuming you can achieve 2:1 compression on your initial backup and
around 20:1 deduplication rate on subsequent backups.
Do I need the Advanced Feature Pack with replication to
back up to my backup server and then copy to the RDX 8000 using DATASTOR Shield?
No. Copying to the RDX 8000 is a native function in
DATASTOR Shield. Replication is need only if you are replicating the backup
server to another backup server running DATASTOR Shield at a remote site.
However, if you want bare metal restore, SQL or Exchange support then you would
buy the Advanced Feature Pack which includes those functions as well.
What does agentless backup mean and how does it
that Quantum DATASTOR Shield does not require software to be installed on the
Windows client systems being backed up. DATASTOR Shield pushes a scheduled task
out to each client system being protected. When this task runs it points back to
an executable on the NDX-8d which contains the deduplication engine. The client
system passes back only changed bits of data (deduplication). This generally
results in a 20:1 deduplication ratio vs. 2:1 compression with typical backup
software -- which means only 1/10 the data is sent over the network and stored
with DATASTOR Shield vs. traditional backup software.
Can Quantum DATASTOR Shield
protect data from non-Windows systems?
Yes. However the data would be deduplicated on the backup
server and not on the client. Data from non-Windows systems is copied to the
backup server in non-deduplicated form. The data is deduplicated on the backup
server and stored by a local protection plan. A planned future enhancement will
allow for deduplication on Linux based systems before being sent over the