Optimize EIDE hard drives?

[haze]

What exactly does this feature do? How can I be sure it doesn't mess up my system?

 

[awsol]

Iv'e used it on my local development system and it worked fine. I never tried it on my box with all my clients. As it says it can screw up some systems. As for what it does I'm not sure. I did it on my local system which has 1 domain and of course with only one domain a you won't notice a difference. I'm sure a box with 200+ clients would notice a difference.

 

[gorilla]

I know this is an old thread , but has anybody got any more info on "Optimize EIDE Hard Drives"

 

[chirpy]

Sure. It enables DMA mode on your disks. It was only an issue with very old disk drives. These days you should always enable it.

 

[Sinewy]

i have it enabled on all the production boxes, works fine.

 

[gorilla]

Thanks guys for your responds :p

 

[bulldog5]

So how do you revert back to disabling it ?

 

[gorilla]

As chirpy meantioned you always want DMA mode enabled on your disks.
The newest HD usually run DMA4 or DMA5 and having it enabled is a great performance advantage.
If you are running XP on your desktop, you can go to your device manager and check out
"IDE ATA/Atapi controllers" and see what your HDs are running

 

[Fernis]

Does the server have to be rebooted or a particular service restarted for this to be in effect after enabling in WHM?

 

[rs-freddo]

Does this work on SATA drives?

 

[Fernis]

Yes, it does work on SATA drive.

 

[chirpy]

It wouldn't have any effect on SATA drives. You don't need to do anything after running the script for it to work on IDE drives.

 

[viooltje]

Why doesn't it have any effect on SATA drives?
Does someone know this?


And how do I know if I have SATA or EIDE?
Filesystem Size Used Avail Use% Mounted on
/dev/sda5 227G 20G 195G 10% /
/dev/sda1 99M 28M 66M 30% /sda1
/dev/sda3 1012M 34M 927M 4% /sda3
none 1013M 0 1013M 0% /dev/none
/dev/sdb1 230G 13G 205G 6% /sdb1
/tmpo 1012M 34M 927M 4% /var/tmpo