![[H]ard|Forum](/styles/hardforum/xenforo/logo_dark.png){kind=logo}
Manaknight
Supreme [H]ardness
- Joined
- Jun 6, 2005
- Messages
- 5,446
heya
so i'm relatively new to striping raid (aside from the sheer novelty of doing it on my onboard nvidia raid channel) I have 2 raptor x 150's and an adaptec 2410sa raid card.
I have it set up and am currently on those drives. Not really a problem in terms of general operation. However i decided to check out how the raid was running and i think somewhere along the line i either set it up wrong or the adaptec card is bottlenecking the raid.
I ran hdtach and was getting bursts at 88 and sustained at like 44... i mean, my ide drives on my backup rig run faster than that. so what do i have messed up?
on the raid setup i am striping 128kb, which i am going to drop to 64, though would that really cause such a performance difference?
Also i have the drive cache still on, should i disable that cache in the raid card? it yells at me about the drive cache when i create an array, but i wasn't sure what to do so i just left both cache's on. Would that harm my overall performance.
I figured i would ask on here first before i reload windows 4 times trying various configurations.
lastly, should i just ditch the raid card? i got it because i have had a lot of success with these cards in various servers i've worked on...albeit in mirror and not stripe raid.
and i know i wont see night and day performance on some applications, but I will be using it for video and such so it actually is in my benefit.
so i'm relatively new to striping raid (aside from the sheer novelty of doing it on my onboard nvidia raid channel) I have 2 raptor x 150's and an adaptec 2410sa raid card.
I have it set up and am currently on those drives. Not really a problem in terms of general operation. However i decided to check out how the raid was running and i think somewhere along the line i either set it up wrong or the adaptec card is bottlenecking the raid.
I ran hdtach and was getting bursts at 88 and sustained at like 44... i mean, my ide drives on my backup rig run faster than that. so what do i have messed up?
on the raid setup i am striping 128kb, which i am going to drop to 64, though would that really cause such a performance difference?
Also i have the drive cache still on, should i disable that cache in the raid card? it yells at me about the drive cache when i create an array, but i wasn't sure what to do so i just left both cache's on. Would that harm my overall performance.
I figured i would ask on here first before i reload windows 4 times trying various configurations.
lastly, should i just ditch the raid card? i got it because i have had a lot of success with these cards in various servers i've worked on...albeit in mirror and not stripe raid.
and i know i wont see night and day performance on some applications, but I will be using it for video and such so it actually is in my benefit.
