Today I finished storage upgrade of my box. Before I had only PATA devices. Recently I bought Serial ATA II hard drive so my config was (2.6.21-rc3 kernel with libata for all SATA/PATA devices):
ata1.00: ATA-6: ST3120026A, 3.06, max UDMA/100
ata1.00: 234441648 sectors, multi 16: LBA48
ata1.00: configured for UDMA/100
scsi 0:0:0:0: Direct-Access ATA ST3120026A 3.06 PQ: 0 ANSI: 5
SCSI device sda: 234441648 512-byte hdwr sectors (120034 MB)
scsi 1:0:0:0: CD-ROM TOSHIBA DVD-ROM SD-M1212 1R22 PQ: 0 ANSI: 5
sr0: scsi3-mmc drive: 32x/32x cd/rw xa/form2 cdda tray
scsi 1:0:1:0: CD-ROM TEAC CD-W516EB 1.0K PQ: 0 ANSI: 5
sr1: scsi3-mmc drive: 40x/40x writer cd/rw xa/form2 cdda tray
ata5.00: ATA-7: ST3320620NS, 3.AEG, max UDMA/133
ata5.00: 625142448 sectors, multi 16: LBA48 NCQ (depth 0/32)
ata5.00: configured for UDMA/100
scsi 5:0:0:0: Direct-Access ATA ST3320620NS 3.AE PQ: 0 ANSI: 5
SCSI device sdb: 625142448 512-byte hdwr sectors (320073 MB)
PATA bus contain: Seagate 120GB hdd which I bought in 2003, then 9 years old Toshiba DVD drive and 6 years old Teac CD writer. Then SATA Seagate 320GB hdd which I bought one week ago and configured as LVM (some parts of 120GB will be added into it).
Today I took out old PATA optical drives and replaced them with Samsung SH-S183A DVD writer (Serial ATA). Now bus look a bit different:
ata1.00: ATA-6: ST3120026A, 3.06, max UDMA/100
ata1.00: 234441648 sectors, multi 16: LBA48
ata1.00: configured for UDMA/100
scsi 0:0:0:0: Direct-Access ATA ST3120026A 3.06 PQ: 0 ANSI: 5
SCSI device sda: 234441648 512-byte hdwr sectors (120034 MB)
ata5.00: ATA-7: ST3320620NS, 3.AEG, max UDMA/133
ata5.00: 625142448 sectors, multi 16: LBA48 NCQ (depth 0/32)
ata5.00: configured for UDMA/100
scsi 5:0:0:0: Direct-Access ATA ST3320620NS 3.AE PQ: 0 ANSI: 5
SCSI device sdb: 625142448 512-byte hdwr sectors (320073 MB)
scsi 6:0:0:0: CD-ROM TSSTcorp CD/DVDW SH-S183A SB02 PQ: 0 ANSI: 5
sr0: scsi3-mmc drive: 94x/94x writer dvd-ram cd/rw xa/form2 cdda tray
That “94x writer” looks funny as this is 18xDVD writer. And I must say that due to switch to libata in Linux there are no problems with handling Serial ATA devices (nevermind hdd or atapi ones).