# Fine-tuning the stripe-unit size

A new controller stripe-unit size is set at the factory to 8 KB (SCSI) or 16KB (SATA/SAS). If you need to change this setting for a ServeRAID SCSI controller or HostRAID controller, you must change the stripe-unit size before you store data in the logical drives. After you store data in the logical drives, you cannot change the stripe-unit size without destroying data in the logical drives.

The ServeRAID-8i, ServeRAID-7t, and HostRAID controllers do not support 8 KB stripe-unit size.

For ServeRAID SCSI controlles, you must use the ServeRAID Manager in bootable-CD mode to change the stripe-unit size setting.

Environment | stripe-unit size
Groupware (such as Lotus Notes or Exchange) | 16 KB
Transaction processing database | 16 KB
Decision support database | 16 KB
Thin client environments | 8 KB
File server (Microsoft Windows NT, Windows 2000, Windows Server 2003, Novell NetWare) | 16 KB
File server (Other) | 8 KB
Web server | 8 KB
Other | 8 KB

## More information

- Changing the stripe-unit size (action)
- Fine-tuning your system

Glossary | Contents

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