Formatting And Verifying Disk Drives - Adaptec 4000SAS Installation And User Manual

Appendix C: Using the Adaptec RAID Controller Utility
For the best device performance, don't change the default settings.
Note: Default settings are shown in bold type.
Option
Maximum
Transfer Rate
Enable
Disconnection
Initiate Wide
Negotiation
QAS
Packetized

Formatting and Verifying Disk Drives

You can use the disk utilities to low-level format or verify your disk
drives. (New disk drives are low-level formatted at the factory and do
not need to be low-level formatted again.)
Caution: Before you format a disk drive, back up all data.
!
Formatting destroys all data on a disk drive.
To format or verify a disk drive:
Start the Adaptec RAID Controller utility (see
1
Select the controller you want, press Enter.
2
Select Disk Utilities.
3
Select the disk drive you want, then press Enter.
4
Select Format Disk or Verify Disk Media.
5
Description
Shows the maximum data transfer rate that the SCSI
channel supports.
When enabled, the SCSI device can disconnect from the
SCSI channel. Default is Yes (enabled).
When enabled, the SCSI channel attempts 16-bit data
transfer instead of 8-bit data transfer. Default is Yes
(enabled).
When enabled, QAS (Quick Arbitration and Selection) is
used to eliminate overhead and speed up data transfers on
the SCSI bus. Default is No (disabled).
Note—Adaptec recommends that you do not enable QAS
if you are using an enclosure that supports Ultra320
expanders.
When enabled, SCSI packetization (encapsulation) is used
to reduce overhead and speed data transfer. Default is Yes
(enabled).
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