G.G.
Thanks for the excellent links. I have looked at all of them and have to say that RAID is a subject that goes very deep in complexity. THe coolest link is the calculator. I tried it out and got results close to what you got.
I have researched RAID technology enough and my decision is that I'm going with RAID 6. Below is a list of some of the positives and negatives I have learned about RAID 6:
1. A negative is it takes longer to bootup compared to RAID 10. I read it is because it's got to go through a two parity check. If it's an extra 2 minutes of bootup time I can live with that.
2. A positive for RAID 6 is that it's a better choice when using Desktop Hard Drive as opposed to Enterprise Business level Hard drives. Desktop hard drives have a higher chance of failing and RAID 6 is designed to cope with failed drives more effectively. Since my RAID 6 is going to be made up of 24 1TB Desktop hard drives, I expect some drive failures in the fuutre. I elected not to go with Enterprise Level Hard Drives because they are a lot more expensive.
3. A negative for RAID 6 is that it has a much longer hard drive failure recovery time as compared to RAID 10. I was told that RAID 6 could take as long as 12 hours to recover from a disc drive failure. Raid 10 is much faster than 12 hours.
4. A negative for RAID 6 is slower Writer times. Read times I was told were the same between RAID 6 and RAID 10.
5. A huge positive for RAID 6 is the Data Storage Space to Backup Space ratio it provides. From what I figure,roughly 80% goes to Data Storage Space and 20% goes to backup space. In contrast, RAID 10 has a 50% ratio where half of the total capacity goes to Storage Space and the other half goes to Back Space. How RAID 6 performs this magic is something that I cant' understand.
6. A negative I was told is how RAID 6 has the potential of losing your entire data if during a 12 hour long hard drive recovery phase an additional hard drive fails.
I would appreciate it a lot if any other forum members out there could contribute any additional positive and/or negatives relating to RAID 6 compared to RAID 10. Thanks to all for their post.
Thanks for the excellent links. I have looked at all of them and have to say that RAID is a subject that goes very deep in complexity. THe coolest link is the calculator. I tried it out and got results close to what you got.
I have researched RAID technology enough and my decision is that I'm going with RAID 6. Below is a list of some of the positives and negatives I have learned about RAID 6:
1. A negative is it takes longer to bootup compared to RAID 10. I read it is because it's got to go through a two parity check. If it's an extra 2 minutes of bootup time I can live with that.
2. A positive for RAID 6 is that it's a better choice when using Desktop Hard Drive as opposed to Enterprise Business level Hard drives. Desktop hard drives have a higher chance of failing and RAID 6 is designed to cope with failed drives more effectively. Since my RAID 6 is going to be made up of 24 1TB Desktop hard drives, I expect some drive failures in the fuutre. I elected not to go with Enterprise Level Hard Drives because they are a lot more expensive.
3. A negative for RAID 6 is that it has a much longer hard drive failure recovery time as compared to RAID 10. I was told that RAID 6 could take as long as 12 hours to recover from a disc drive failure. Raid 10 is much faster than 12 hours.
4. A negative for RAID 6 is slower Writer times. Read times I was told were the same between RAID 6 and RAID 10.
5. A huge positive for RAID 6 is the Data Storage Space to Backup Space ratio it provides. From what I figure,roughly 80% goes to Data Storage Space and 20% goes to backup space. In contrast, RAID 10 has a 50% ratio where half of the total capacity goes to Storage Space and the other half goes to Back Space. How RAID 6 performs this magic is something that I cant' understand.
6. A negative I was told is how RAID 6 has the potential of losing your entire data if during a 12 hour long hard drive recovery phase an additional hard drive fails.
I would appreciate it a lot if any other forum members out there could contribute any additional positive and/or negatives relating to RAID 6 compared to RAID 10. Thanks to all for their post.
