Additions to these pages are welcomed !
Choosing the right setup for your IO needs
First of all you need to clearly know what you want to do.
This is a small checklist that we will use later:
- What type of services do run on the (new ?) machine.
- What type of access patterns do those services create ?
- How much diskspace do the services need ?
- How much CPU load do those services put on the machine ?
- How much IO load do those services put on the machine ?
Some typical configurations:
- NEWS server
- FTP/File server
- WWW server
- MAIL server
- DATABASE server
- SHELL server
- Workstation
| access pattern | diskspace | IO load | CPU load |
| NEWS |
hotspots | high | very high | |
|---|
| FTP/FILE |
chaotic | high | very high | |
|---|
| DATABASE |
structured | medium-
very high | medium-
very high | |
|---|
| WWW |
hotspots | low | medium | |
|---|
| MAIL |
| medium | medium | |
|---|
| SHELL |
| medium | low | |
|---|
| WORKSTATION |
| medium | medium-high | |
|---|
Miguel de Icaza and Ingo Molnar took over the mainenance of the MD driver.
It now supports RAID-0, RAID-1, and work on RAID-5 support is underway.
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