Raptor 150, or 74GRaid

[runLoganrun]

Should I just get the 150G raptor, or add another 74G raptor for raid 0? They're about the same price.

Do the model numbers have to be identical for raid 0, or can a newer version of this drive be combined with an older one?

Thanks

 

[sniggle]

The 74gb raid 0 would be faster (albeit at the cost of more likely data loss). You can combine newer generation drives with older ones. I have a non ADFD combined with a newer ADFD raid 1 at work.

 

[GotNoRice]

The older and newer raptors are really in a different league compared to one another. Trying to use two dissimilar drives in Raid, especially Raid-0, usually produces less than optimal results. At best, the faster drive will only work as fast as the slower drive.

If you’re going to go with two 74g raptors, you should either get two new ones or look for an older one used IMO. Raid-0 with two newer raptors would probably have a slight edge over a single raptor150, but two older drives or a hybrid raid setup with one new and one old drive I’d guess would only be better in certain situations.

If you’re running an intel board you could try Matrix Raid, make something like a ~40gig partition using only the fastest part of the two drives. I made a 120gb partition using two 500g seagate 7200.11 drives and that gives a constant >200MB/sec and seek times just under that of a Raptor 150. Doing the same with two 74g raptors should give similarly high STR, and perhaps seek times approaching 15k scsi drives. That ought to help close any gap between it and the raptor150.

 

[runLoganrun]

The older and newer raptors are really in a different league compared to one another. Trying to use two dissimilar drives in Raid, especially Raid-0, usually produces less than optimal results. At best, the faster drive will only work as fast as the slower drive.

If you’re going to go with two 74g raptors, you should either get two new ones or look for an older one used IMO. Raid-0 with two newer raptors would probably have a slight edge over a single raptor150, but two older drives or a hybrid raid setup with one new and one old drive I’d guess would only be better in certain situations.

If you’re running an intel board you could try Matrix Raid, make something like a ~40gig partition using only the fastest part of the two drives. I made a 120gb partition using two 500g seagate 7200.11 drives and that gives a constant >200MB/sec and seek times just under that of a Raptor 150. Doing the same with two 74g raptors should give similarly high STR, and perhaps seek times approaching 15k scsi drives. That ought to help close any gap between it and the raptor150.

So even 2 new raptor74G would just outperform a raptor150G? Seems like should prob get the 150, more reliability than raid0. I thought that raid0 was a bigger performance boost though.... maybe for 7k drives.

Thanks