View Full Version : harddrive buffer size?

Jul 12, 2004, 02:49 PM
what does it mean and what does it do?

Jul 12, 2004, 04:11 PM
what does it mean

Think of it as L2 or L3 cache on a processor.

and what does it do?

It speeds up the search time of the drive.

Jul 12, 2004, 04:37 PM
Disk caching works under the same principle as memory caching, but instead of using high-speed SRAM, a disk cache uses conventional main memory. The most recently accessed data from the disk (as well as adjacent sectors) is stored in a memory buffer. When a program needs to access data from the disk, it first checks the disk cache to see if the data is there. Disk caching can dramatically improve the performance of applications, because accessing a byte of data in RAM can be thousands of times faster than accessing a byte on a hard disk.

Do a search for cache at webopedia.com. Good site.

Jul 12, 2004, 04:38 PM
EDIT: ah, looks like you have a better awnser up above :D

Jul 13, 2004, 02:36 AM
for now, the bigger the better...