Adam wants to create a new RAID 5 array, but his current RAID 1 system went belly up as he was converting to RAID 5. Can he get his data back? Leo says probably not through the RAID itself. He could take one drive out and try to recover, but Adam may have been too deep in the conversion process to restore the data. But the good news is, that he can take the drive out and plug it into the existing PC and see the data. If the data is mirrored, it should be easy to recover with a utility like Recuva. EaseUS also has a free drive recovery tool. He can probably use those to see the files.
Jake swapped out his smaller SSD with a larger one on his computer. Leo says that Jake could just keep that drive as his software only drive and then use the larger drive for data. He could even combine multiple drives into a RAID for redundancy. He should keep in mind that using RAID 0 may be fast, but it's also less reliable because if one drive fails, it all fails. RAID 1 would give him data security by making multiple copies of the same data. RAID 5 is what is common now, and that offers the best of both worlds.
Alan set up his RAID backup and his drive failed. Then a second failed. And now he lost everything. Alan paid a drive backup company to rebuild his RAID and get the data and he got it all back. But it cost him $11,000 to do. OUCH. Lesson painfully learned.
Leo says that while a backup RAID is a good idea, it's only one link in the backup chain. You really need to adopt a 3-2-1 backup strategy, three backups, on two different media, one off site.
Louis has a first generation Mac Pro and he's thinking of getting a new Mac Mini instead. He has a few extra hard drives, and is wondering how he could use them as external storage. Should he get a Drobo? Leo says that Drobo's tend to be a bit pricey and overkill for the average person. It's for multiple drives for data redunancy.
Stan wants to clear off his DVR with a 2 Bay RAID to save his programs. But his beef is that there isn't a lot of documentation. Leo says don't worry about all that. Just use the PC settings. You can also use a DROBO, which allows you to hot swap drives if they fail so you don't have to stop it from running. But two drives isn't best because it's mirroring and you will only get half the capacity since they're identical. Leo prefers RAID 5 with three drives which gives you 2/3 storage 1/3 redundancy. It's robust. Companies that make eSata RAID 5 include Drobo.
Eric has a RAID 5 server that has had two drives fail and he needs some data recovery services. Leo says he doesn't know if data recovery is even possible if more than one disc dies. If a large enough chunk of data was lost, there's just no way to get it back. But it will largely depend on how it failed. A controller could've gone bad, and that could be an easy fix and the data could still be there. This is why one backup isn't much of a backup.
Horatio wants to create a RAID for video editing, and he wants to know if the RAID provided by his Intel motherboard is good to use. Leo says that the RAID that is built into the motherboard is a software RAID called "BIOS RAID", and that's fine. But Leo says that a RAID card is more robust and better.
Tony works for a security firm and he wants to mirror the data of a hard drive onto a RAID. Leo says the first thing Tony should do is clone the drive since it's a very important drive to his job. Drive's will eventually die, so it's vital for Tony, or anyone for that matter, to clone the drive to back it up. Hard drives usually come with utilities for this purpose. EaseUS has a great imaging utility for that. Once that's done, save the original drive in a safe place and then use the cloned drive moving forward.