Kbase P82159: Is there any reason why I shouldn't just enablelargefiles and create 1 variable extent per storage a
| Autor |
Progress Software Corporation - Progress |
| Acesso |
Público |
| Publicação |
5/27/2004 |
|
Status: Unverified
GOAL:
Is there any reason why I shouldn't just enablelargefiles and create 1 variable extent per storage area when using a SAN?
FIX:
Those conditions still /do/ apply. There's no getting around physics.
A single disk drive can only do a certain number of disk I/O operations per second and can only do one at a time. No matter how large the drive is, this will not change.
Multiple drives (spindles) can perform more total I/O's per second than a single drive. This is true when the drives are connected directly to the server and it is /still/ true when they are connected to the SAN device and accessed over a dedicated high-speed network (for example Fibre-Channel Arbitrated Loops).