![]() ![]() The issue of data security can be a rabbit hole, but one that anyone who uses a computer needs to venture into on a regular basis.Ī mirror image of your system drive should also be made periodically, in the event of theft, fire, flood, catastrophic failure, etc. so that you can rebuild the system drive to a similar computer. At the end of the day, your backup should have 3 copies, 2 of them local on separate devices, and one in a remote location.Ī mirror image of your system drive should also be made periodically, in the event of theft, fire, flood, catastrophic failure, etc. There is a lot to know about backup, and unfortunately you are not likely to come by people who actually know what they are doing and will likely give you well-meaning but potentially dangerous advice. You don't need to make a complete copy of an entire drive to consider it backed up, so technically, you could use a smaller drive to back up a bigger drive, as long as the data being recorded is not bigger than the smaller drive. For efficient disk utilization, backups should be incremental, ie, only files that have been changed/added are actually copied. Good backups create historical data sets, so if something goes wrong or gets corrupted you can go back several generations to get to the last version of a file before the fault. However, neither of these provide a backup solution per se. #Softraid 6 xt softwareI would avoid software RAID for performance and reliability reasons. In the other schemes there is double redundancy, therefore better fault tolerance. In a RAID 5, if one drive faults, the remaining two drives are completely vulnerable until the failed drive is replaced. #Softraid 6 xt updateIt is slow, only has one drive for parity, and changes to the striped drives require an update to the parity drive, which diminishes its fault tolerance and overall performance. No one who cares about their data would implement RAID 5. As far was what level of RAID, I would not suggest anything less than 0+1 or 1+0. #Softraid 6 xt fullIf you need to have full time 24/7/365 access to your data with no downtime, RAID is great. When properly implemented, it does provide redundancy and downtime reduction, but not backup in the traditional sense. SuzanneHi All! br br Have been lurking for years but thi. ![]() Thanks! That is exactly the kind of info I was looking for! I actually ordered my system from B & H.Hi Suzanne, br I have had a good experience and go. OWC now offers the Thunderbay 4 Mini, a compact system with a choice of 2.5" hard drives or SSD drives, from a 2 to a 16 TB system. They also offer good support by phone or email. I've had the system for a year, and the SoftRAID developers are quick to update with changes in MacOS, for example from MacOS 10 to 11. If any one drive should fail, it is hot-swappable with no loss of data. The four 6TB drives combine into one 18 TB virtual device. I installed a RAID 5 system, which is the default with SoftRAID, and seems to offer the best combination of speed, redundancy, and safety. The drive comes with the SoftRAID XT software, which has outstanding help and guidance. I have had a good experience and good service from OWC, with their Thunderbay 4 enclosure and enterprise drives. I did a quick look on B&H but am thinking that I should maybe be looking at a computer company instead. ![]() I am looking for a reputable company to help me configure an array. I searched on UHH and google but would like some experienced users to help to steer me. I have seen in the past that people are recommending RAID arrays for both speed and redundancy. Of course 1 8T drive can't back up 2 8T drives and I haven't been able to figure out if Time Machine will backup to 2 separate drives. That worked fine but now that I am getting into video, I have added a second 8T drive for small projects and video. I also change all drives every year and store the older ones off site. I had been storing all of my images onto an external 8T drive and backing up to a second 8T drive using Time Machine. Have been lurking for years but this is my first post so be gentle :-) (and thank you to everyone for the great information over the years!) ![]()
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