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RAID VS SCSI
- Thread starter ken07734
- Start date
Hi,
RAID and SCSI are two technologies that are sometimes used together and others not.
RAID is the Redundant Array of Inexpensive Disks. It is a technology to allow protection of data by either mirroring drives, or storing parity information on some disks and the actual data on other disks etc, the idea being that if one of the disks in the set fails, the computer won't come to a grinding halt because it can run off the other disk, or use the parity information to reconstruct the data from the dead disk.
There could be a whole article relating to different levels of RAID and the protection that they give.
SCSI is the Small Computer Systems Interface. It is a bus that allows the connection of a variety of peripherals, mostly hard drives, CD/DVD drives and scanners, both inside and outside the computer's case.
Can they coexist? Yes - for many years, SCSI drives were and still are used in RAID disk arrays on proper servers. IDE RAID controllers are common on modern high end motherboards and are also available as addin expansion cards.
Unless your motherboard is designed for server use, it is more likely to be an IDE RAID controller, for IDE rather than SCSI hard drives. I would check the motherboard manual before you go and buy any hard drives to plug it in to it though and find out which UDMA setting it can drive.
John
RAID and SCSI are two technologies that are sometimes used together and others not.
RAID is the Redundant Array of Inexpensive Disks. It is a technology to allow protection of data by either mirroring drives, or storing parity information on some disks and the actual data on other disks etc, the idea being that if one of the disks in the set fails, the computer won't come to a grinding halt because it can run off the other disk, or use the parity information to reconstruct the data from the dead disk.
There could be a whole article relating to different levels of RAID and the protection that they give.
SCSI is the Small Computer Systems Interface. It is a bus that allows the connection of a variety of peripherals, mostly hard drives, CD/DVD drives and scanners, both inside and outside the computer's case.
Can they coexist? Yes - for many years, SCSI drives were and still are used in RAID disk arrays on proper servers. IDE RAID controllers are common on modern high end motherboards and are also available as addin expansion cards.
Unless your motherboard is designed for server use, it is more likely to be an IDE RAID controller, for IDE rather than SCSI hard drives. I would check the motherboard manual before you go and buy any hard drives to plug it in to it though and find out which UDMA setting it can drive.
John
- Thread starter
- #3
Ken,
It isn't necessarily a waste of time and money - it can provide a slight performance boost if you do a lot of reading of data, as well as data protection if you stripe it across multiple partitions.
Hardware raid is certainly faster than software RAID supplied in MS's Win2K and XP Pro operating systems, and because it is hardware it means you can use it on all the operating systems, not just those that MS chooses to include drivers for.
John
It isn't necessarily a waste of time and money - it can provide a slight performance boost if you do a lot of reading of data, as well as data protection if you stripe it across multiple partitions.
Hardware raid is certainly faster than software RAID supplied in MS's Win2K and XP Pro operating systems, and because it is hardware it means you can use it on all the operating systems, not just those that MS chooses to include drivers for.
John
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