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Support > Frequently Asked Questions |
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On this page, a short Q and A is provided. If your questions remain unanswered, contact Ardis Technologies through our Contact Information. 1 What happens when I replace a drive in the DDP? Drives are hotswappable. When a new drive is installed with a higher capacity, capacity is still limited to the original ones because of the raid 5 configuration. 2 How can I recognize which drive to replace? Which drive is broken can be observed by selecting the Raid monitoring program. 3 How do I add a second DDP to the first one? By connecting the second DDP to the network, activating the DDP manager on the desktops and adding an IP-address. 4 What if I have less then 5 clients but I need much more capacity? Talk to us about your requirement(s) so that we can advise you a usefull solution. 5 What if I want mirrored disk instead of raid 5 setup? That is okay when it is known to the manufacturer when the system is ordered. 6 Can I resize a drive without loss of data? That is currently possible by creating a new disk with a larger capacity and then copying the material from the original one to the new one. 7 Can I loose a drive or data? The drives, which are used by the desktops, are virtual drives, which are protected by the underlying raid configuration. The main board and the pci cards are single but the computer memory is ECC memory. There is a limited possibility that wrong data is written due to a malfunctioning main board or pci card or because of an intermittent software failure. To further minimize that from happening optionally snapshots can be taken for each virtual drive separately. 8 What are snapshots? Taking a snapshots means that the current disk status is frozen. New data can be written to the disk but it does not influence neither the data nor that part of the filesystem. Snapshots therefore give an extra layer of security on top of the data redundant raid system. The drawback is that the moment the snapshot is taken extra capacity is required for the disk of which the snapshot has been taken. 9 What do I have to buy for 25 desktops with a low bandwidth? When your requirement does not fit the standard DDP offered please contact the manufacturer or dealer. A special offer can be discussed. 10 Where does the software reside? The DDP software is well protected because it is part of the raid setup of your system. 11 What happens when a drive is full? Exactly the same when any other drive which is internal in your computer is full. 12 Why would I buy a DDP instead of a fire wire drive? For companies with a number of operators the advantages are obvious. Also for one person operations a number of advantages come to mind such as: higher capacities and bandwidths, longer cabling, better data protection, flexibility in creating, using, exhanging and sharing drives not to forget reliability. 13 Why would I buy the DDP instead of a file or NAS server? When using a file or NAS server the bandwidth is severly limited due to the software overhead. 14 Where can I find more information about iSCSI? More information about iSCSI can be found on http://www.ardistech.com/iSCSI. |
 
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