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Forum Discussion
Swap raid 5 to raid 6 readynas 516 6 x 4TB
I am currently 6 x 4TB drives as one volume in Xraid raid 5 i only use this for storing movies for home cinema After reading a lot of the posts would it be benifitial to change to Raid 6 i still ha...
Do you have a backup of the data? Changing to xraid with dual redundancy (raid 6) would require destruction and then recreation of the volume.
The benefit is that you volume will tolerate 2 disk failures. Disadvantages include loss of write speed and of course loss of volume space.
It relly depends how critical it is that your volume is always online. If you have robust backup, then for something like a movie library you might want to stick with raid 5 and make use of the extra space
Thank you for your reply as with so many of us i dont have a back up of my nas because i always thought i was protected .
From the beggining i started of with 2 disks at that time mirroring so thought had a back but of course expanding the raid as i went on for novices you dont realise that the raid changes so by the time you have a fully 6 bay nas occupied a back up is another one which for home use purely for movies is a bit over the top i keep a new spare drive just in case
But as i have only about 4TB used at the mo i could buy a 12TB western digital drive make a back up then change the raid but having done this do i assume that when i run out of space i either vertically expand with 10TB disks or buy another nas by which time the 628X might even have been superceeded but then i would need to start off with at least 4 disks be it 10TB each or 12 TB by then and am i right in thinking that Raid 6 offers a 2 disk failure although i don't run my NAS 24 hrs a day its probably only on for 6-8 hrs
If you were to get an 8-bay such as the RN628X there is a way to switch to RAID-6 without needing to destroy the volume and create a new one.
You could disable X-RAID and set the option to add redundancy with the next disk added and add a 7th 4TB disk then once the syncing has commenced you could re-enable X-RAID.The RN628X was only recently released. It's a new model.
Hi thats great but if i were to upgrade to the 628X i was going to start it off with Seagate 10TB drives moving the data from the 516 over i am using WD red pros 4 TB at the mo but was supprised to find they are not as reliable as i would have thought not that i have had any problems
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