raid and ide [Archive] - ForumsHQ

[elpresidente]

whats the difference?

can i use a raid hd on an ide motherboard?

whats better?

[Reckless]

you need a raid controller to run a raid hd.



raid is used for data redundancy and protecting data in case of hardware failure...depending on what level of raid you use you need more than one hd.

[elpresidente]

well im buying a server that used 12Gb RAID5 what about my other questions. Oh and will that mean that each Hd is 12Gb or adding up to 12Gb?

[iNViSiGOD]

Its something like this:



RAID-0: This is what you'd use for digital audio/video use. It basically takes multiple individual drives amd ties them into a single drive "array." It offers no verification or "fault tolerance."



RAID-1: Appears to your computer as a single drive but is actually two drives, one an exact duplicate of the other. This realtime "mirroring" allows for data protection in mission critical operations in fault-tolerant uses like banking, government, business, medicine, education, etc.



RAID-0/1: This protocol allows for the speeds needed for digital video in the RAID-0 portion of the system and includes what is usually a near realtime RAID-1 system for redundancy and data protection. Requires a minimum of four drives to acheive: two as the primary data RAID and two as the mirror drives to create the exact duplicate of the primary drives.



RAID-3: This RAID level allows for the data drives to be striped and includes a back-up disk for data protection. Requires at least three disks to implement. Controller design is a complex procedure and the resource intensive nature of the process makes it very difficult to accomplish with software-only solutions

[Reckless]

raid 5 is striped w/ parity if I'm not mistaken. And however much space you have on the hard drives is how much you have. It doesn't make more space on your drives. 12 gb's at raid 5 is prolly (3) 4gb hard drives since you have to have 3 drives to utilize raid 5

[hagrid]

Originally posted by Reckless

raid 5 is striped w/ parity if I'm not mistaken. And however much space you have on the hard drives is how much you have. It doesn't make more space on your drives. 12 gb's at raid 5 is prolly (3) 4gb hard drives since you have to have 3 drives to utilize raid 5



If it was 12 gb it would be 3 6gb HD's since 1 is the parity drive.

The combo could be different like 5 3gb's, or however many channels the raid 5 has.



Hagrid

[syntax53]

Originally posted by Reckless

raid 5 is striped w/ parity if I'm not mistaken. And however much space you have on the hard drives is how much you have. It doesn't make more space on your drives. 12 gb's at raid 5 is prolly (3) 4gb hard drives since you have to have 3 drives to utilize raid 5



you are correct.

[Reckless]

Originally posted by hagrid





If it was 12 gb it would be 3 6gb HD's since 1 is the parity drive.

The combo could be different like 5 3gb's, or however many channels the raid 5 has.



Hagrid



Parity is divided between all of the hard drives in a level 5 raid. That's what makes it redundant.

[NIN]

OH! and be sure all the hard drives are EXACTLY the same!

[Brunt]

You need to have the same amount of sectors, platters heads blah blah blah