I've just recieved my Readynas Ultra 4 and fitted it with the 2TB Seagate Barracuda Green drive that the store bundled the NAS with. When I first activated Jumbo Frames in FrontView I couldn't access the NAS anymore, so I figured I had screwed up the installation somehow. So I performed a factory reset, only now whenever the reset completes and the initial wizard completes, the disk usage in FrontView shows 47 GB (2%) used, and not all of the drive is allocated either. I figure the 10 GB that's not part of the created volume is used by the system, but that doesn't account for the other 47 GB somehow magically being used up on an empty drive. I've tried the format option during the initial setup, it took all night, but that didn't solve the problem.
RAIDar however does show correct usage, something like 150 MB (0%). When accessing the share from my ubuntu PC it whows 2TB total, 47 GB used, which isn't correct either.
Are you taking into account that the Operating System is on each disk? While the OS is also on the flash memory, that is for the installation, the ReadyNAS actually runs off the OS on the disks.
It did occur to me that this may be the case, but that doesn't explain why RAIDar shows 204 MB (0%) of 1841 GB used whilst FrontView shows 47 GB (2%) of 1841 GB used.
So the drive's capacity is 1863 GB The volume's capacity in both FrontView and RAIDar is 1841 GB Disk usage according to RAIDar: 204 MB (0%) of 1841 GB used Disk usage according to FrontView: 47 GB (2%) of 1841 GB used
So it's a bit confusing. I connected the drive to my PC and disk management in Windows 7 shows three primary partitions. One 4 GB, one 512 MB and one 1858,51 GB. If I've understood this correctly, then a portion of the 1858,51 GB partition is used by the system and hidden from the user (since the NAS only reports 1841 GB). In this case 17,51 GB. The 4 and .5 GB partitions are presumably also used by the system. So that's 22 GB system-reserved space. Add to that the 47 GB reported by FrontView. I can accept that the NAS requires some swap space reserved, no drive should be chock-full, I just want to know that this is by design and not just some bug. Nowhere have I seen mention of exactly how much space is used by the system itself. And then there's still the question of why RAIDar and FrontView show different usage numbers.
EDIT: I just want to make sure everything is in order so that when I install the two other 2 TB drives I intend to use and spend all weekend transferring ~4 TB of data, I don't end up having to do a factory reset again.
Ok, I shut down my NVX and removed the 4 disk volume and installed a spare 1TB drive. The volume as reported in volume settings is 913GB (about right) and the usage is 46GB (also about right). In the listing it shows the drive as 931GB and 927GB allocated. There is about 24GB used for the overhead to get to 913GB in the volume. This is also what is reported on the front panel. (One reason my OS is taking a little less than yours is that I am on 4.2.20 on this backup unit but my primary is on 4.2.21).
However, RAIDar shows 200MB 0% of 913GB used. Interesting.
However, with the correct volume returned and rebooted, it shows 2537GB of 4620GB used in RAIDar and the volume setting page shows the same. Opening Windows Explorer and pointing to the primary NAS1 I get roughly the same (2.5TB used, 2.0TB available).
I would not worry about it. RAIDar may not account for the OS and only shows the structure. With an empty volume it looks strange, but when you put terabytes of data in the volume, the difference between 204MB and 47GB gets lost in the rounding.
I appreciate the swift replies! I suppose I'll try it out as it is, it does make some sense for that space being reserved or something. I just wish it could be stated more explicitly in the interface, what that usage really means.
were you able to figure out what was causing this? I have the exact same problem on a brand new ReadyNAS Ultra 2 with 2 x 2TB disks. 47GB of storage is missing. I've tried to locate what is using the storage by installing the SSH addon and running some df and du commands in the console but I cannot track down the problem. Using fdisk I can see that the partition structure is identical to 4 other ReadyNAS Ultra 2 devices that I also have here which aren't missing the 47GB. They are all running RAIDiator 4.2.22. thanks
