What do these messages mean 'SATA max UDMA/133 cmd','SATA link down'
Issue
- What do these messages mean 'SATA max UDMA/133 cmd','SATA link down' as seen in system logs:
libata version 3.00 loaded.
ata_piix 0000:00:1f.2: version 2.12
ACPI: PCI Interrupt 0000:00:1f.2[A] -> GSI 16 (level, low) -> IRQ 217
ata_piix 0000:00:1f.2: MAP [ P0 P2 P1 P3 ]
ata_piix 0000:00:1f.2: 0x1F0 IDE port busy
PCI: Setting latency timer of device 0000:00:1f.2 to 64
ata1: DUMMY
ata2: SATA max UDMA/133 bmdma 0x60f8 irq 15
GSI 26 sharing vector 0x82 and IRQ 26
ACPI: PCI Interrupt 0000:00:1f.5[C] -> GSI 21 (level, low) -> IRQ 130
ata_piix 0000:00:1f.5: MAP [ P0 -- P1 -- ]
PCI: Setting latency timer of device 0000:00:1f.5 to 64
ata3: SATA max UDMA/133 cmd 0x6108 ctl 0x6124 bmdma 0x60d0 irq 130
ata4: SATA max UDMA/133 cmd 0x6100 ctl 0x6120 bmdma 0x60d8 irq 130
ata3: SATA link down (SStatus 0 SControl 300)
ata4: SATA link down (SStatus 0 SControl 300)
Environment
- Red Hat Enterprise Linux 5
- Red Hat Enterprise Linux 6
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