I have 2x OCZ Agility 3 60GB SSDs in RAID0 using the Marvell controller on my MSI Big Bang X-power board. For some reason, the data is taking up way too much space. If i show hidden files and highlight everything and check the properties, it shows just over 40 GB of data. If I then right click C:\ and show properties, it shows that I am using 85 GB of capacity.
Anyone have any idea why everything is taking up double the space it should?
These will mostly save you space, but the root is the Marvell controller.
My suggestion would be a PCI RAID Card. THe SSD Review just reviewed one (with the new Intel 520 SSD), that lists for $160. Here is their reveiw: HighPoint 2720SGL RocketRAID Controller Review. One thing not mentioned it that you need to buy cables: SAS to SATA? I'm unsure about that.
Personally, I'd rather put those SATA III drives on Intel SATA II ports, than go with Marvell SATA III ports!
In order to set up the raid i had to change my SATA mode from AHCI to RAID, is that possibly causing a problem with TRIM or something?
The thing that really confuses me is that when I look at the properties of the files on the disk themselves it says that the "Size on disk" is something like 42.3 GB, but then it says that C:\ is using about 85 GB... why isn't it the same as the size of all the files on the SSD?
Unfortunately I don't have a lot of space in my case for a raid controller card (maybe could squeeze it between my graphics cards... but i'm not sure)
If i move them to the SATA II ports, will I have to reinstall everything or will the RAID somehow migrate? Also, if I move them to the SATA II ports, even in RAID they would barely out perform just 1 of them in a SATA III port.
Sustained Sequential Read
up to 525 MB/s (SATA 6Gbps)
up to 280 MB/s (SATA 3Gbps)
Sustained Sequential Write
up to 475 MB/s (SATA 6Gbps)
up to 260 MB/s (SATA 3Gbps)
On a different note, I just changed my SSD from RAID 0 to one single larger SSD. I am pleased with its performance! But, I hardly noticed any difference between the SATA II SSD in RAID 0 on my wifes PC to the SATA III SSD in RAID 0 on mine. Boot times and launch times are almost the same. Now with just one larger SSD on mine, boot times are only 1 sec slower, if that.
Not so much about Marvell duplicating data, just that the Marvell controllers aren't up to Intel spec/speeds.
I have 2 Marvell SATA III ports on my mobo (non-RAID), and when I did hook up a HDD to it, to copy ALOT of file over, it was slow! When I installed the drivers for the controller, it was actully slower! I have screenshots of ATTO to back this up! The generic Windows driver worked better the the manufactures drivers! I had similar problems with JMicron SATA ports in the past, so I just don't go ther anymore.
Now I understand if that is all you got to get to SATA III, but look what happened.
And the OP problem is not so much what is using up all his space, but why the difference between Windows Explorer, and the drive properties.
I think it is a System Restore Points, Hibernation files, and Pagefile issue. Try the tweaks before you do anything!
I ran Windirstat and found the problems - thanks tomatthe
The problem was that I hadn't gone through the optimizations yet and for some reason the pagefile was set by default to 24 GB (equal to my RAM) and the hibersys file was another 19 GB. Using the optimization link from foscooter i got rid of the pagefile and turned off hibernate mode through command prompt.