Raid mirroring
- Thread starter GJS1
- Start date
I dunno about 8 but i think if uou use Raid 5 and 7 SSDs it will mean you use 7 SSDs andthe 8th for back up as that 1 is a mirror. i think all drives need to be the same size but not sure. im sure more will help here but raid 5 is the only way i know to raid them all to 0 and have 1 as a mirror.
RAID5 doesnt use 1 drive as a "mirror", it stripes parity information across ALL drives in the array. This takes up the space of 1 drive so with 8 drives in the array the usable space is that of 7 drives. This only saves you if you happen to lose 1 drive in the array, any more than that and your data is gone. Im not sure if using RAID5 this way would negate using SSD's in the first place as it has a high calculation overhead unless you are using a dedicated engine (Hardware RAID card).
If its MS then use synctoy
http://www.microsoft.com/downloads/...36-98e0-4ee9-a7c5-98d0592d8c52&DisplayLang=en
You can set up task scheduler to run it in the background
http://www.microsoft.com/downloads/...36-98e0-4ee9-a7c5-98d0592d8c52&DisplayLang=en
You can set up task scheduler to run it in the background
Thanks, yeah it's MS. WIll this programme copy the OS aswell? could i use it for swapping hard drives ? so swap the data from one to another? well copy
Thanks, is there anysoftware which will ghost drives? or do microsoft not want people ghosting their os?
When you set up a RAID1 mirror, you basically run two drives in parallel. The data is identical on both and if one fails, the other takes over. Ideally both drives should be the same make, model and capacity but it will work with different drives.
For example I run a Seagate 250GB and a Hitachi 320GB in RAID1, they both run at a similar speed but I can only use 250GB in total and the performance will only be that of the slowest drive.
The problem with your proposed setup is you want to mirror a blazing RAID0 SSD setup with a slow, conventional hard drive. I'm not an expert in RAID arrays but at the very least I don't think it would be making best use of your hardware.
Based on what you have said, I'm thinking a RAID5 array would be best and forget about the mirror altogether and keep one (or more) of your 8 drives in a box as a spare.
Definitely ask in the hard drive forum though because they are the experts, I've only ever used conventional disks - it might be a different ball game with SSDs.
For example I run a Seagate 250GB and a Hitachi 320GB in RAID1, they both run at a similar speed but I can only use 250GB in total and the performance will only be that of the slowest drive.
The problem with your proposed setup is you want to mirror a blazing RAID0 SSD setup with a slow, conventional hard drive. I'm not an expert in RAID arrays but at the very least I don't think it would be making best use of your hardware.
Based on what you have said, I'm thinking a RAID5 array would be best and forget about the mirror altogether and keep one (or more) of your 8 drives in a box as a spare.
Definitely ask in the hard drive forum though because they are the experts, I've only ever used conventional disks - it might be a different ball game with SSDs.
