[arch-general] Note: WDC Carvair Black 6 Gbps drives require jumpers on pins 5-6 to be recognized as SATA-II

[David C. Rankin]

Guys,

   Just a note. The newer Carvair Black 6.0 Gbps drives do not come with 
jumpers. However, in order for the drives to be recognized as SATA-II on some 
controllers (the default is SATA-I at 1.5 Gbps), you must install jumpers on 
pins 5-6 for the drives to initialize at 3.0 Gbps:

13:23 nirvana:~> sudo dmesg | grep ata
<snip>
[    1.363358] ata1: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
[    1.370543] ata1.00: ATA-8: WDC WD1002FAEX-00Z3A0, 05.01D05, max UDMA/133
[    1.372815] ata1.00: 1953525168 sectors, multi 16: LBA48 NCQ (depth 0/32)
[    1.380018] ata3: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
[    1.386960] ata3.00: ATA-8: ST3750528AS, CC35, max UDMA/133
[    1.389290] ata3.00: 1465149168 sectors, multi 16: LBA48 NCQ (depth 0/32)
[    1.389303] ata1.00: configured for UDMA/133
[    1.406937] ata3.00: configured for UDMA/133
[    1.853354] ata2: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
[    1.860937] ata2.00: ATA-8: WDC WD1002FAEX-00Z3A0, 05.01D05, max UDMA/133
[    1.863299] ata2.00: 1953525168 sectors, multi 16: LBA48 NCQ (depth 0/32)
[    1.877002] ata2.00: configured for UDMA/133


   Without the jumpers, the drives are limited to SATA-I

-- 
David C. Rankin, J.D.,P.E.