盘阵和IDE可以使用sda和hda参数区分，ide接口的没有scsi-list：
fdisk -l #scsi盘阵
Disk /dev/sda: 18.2 GB, 18210037760 bytes
255 heads, 63 sectors/track, 2213 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/sda1 * 1 13 104391 83 Linux
/dev/sda2 14 2083 16627275 83 Linux
/dev/sda3 2084 2213 1044225 82 Linux swap
more /proc/scsi/scsi
Attached devices:
Host: scsi0 Channel: 00 Id: 00 Lun: 00
Vendor: HP 18.2G Model: MAN3184MP Rev: HP04
Type: Direct-Access ANSI SCSI revision: 02
IDE的：
/sbin/fdisk -l
Disk /dev/hda: 40.0 GB, 40027029504 bytes
255 heads, 63 sectors/track, 4866 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/hda1 * 1 4605 36989631 83 Linux
/dev/hda2 4606 4866 2096482+ 82 Linux swap / Solaris