Thanks Roy for your reply.
I actually waited a little more than an hour, but I'm still going to wait a
little longer following your suggestion and a little hunch of mine. I just
found out that this new WD10EARS is one of the new 4k disks. I believed that
only the 2TB models where 4k.

See:

BEFORE

Apr 23 02:51:37 alexia sata: [ID 663010 kern.info] /p...@0,0/pci1043,8...@1f,2
:
Apr 23 02:51:37 alexia sata: [ID 761595 kern.info]      SATA disk device at
port 0
Apr 23 02:51:37 alexia sata: [ID 846691 kern.info]      model WDC
WD10EACS-00ZJB0
Apr 23 02:51:37 alexia sata: [ID 693010 kern.info]      firmware 01.01B01
Apr 23 02:51:37 alexia sata: [ID 163988 kern.info]      serial number
WD-WCASJ1862768
Apr 23 02:51:37 alexia sata: [ID 594940 kern.info]      supported features:
Apr 23 02:51:37 alexia sata: [ID 981177 kern.info]       48-bit LBA, DMA,
Native Command Queueing, SMART, SMART self-test
Apr 23 02:51:37 alexia sata: [ID 643337 kern.info]      SATA Gen2 signaling
speed (3.0Gbps)
Apr 23 02:51:37 alexia sata: [ID 349649 kern.info]      Supported queue
depth 32
Apr 23 02:51:37 alexia sata: [ID 349649 kern.info]      capacity =
1953525168 sectors
Apr 23 02:51:37 alexia scsi: [ID 583861 kern.info] sd7 at ahci0: target 0
lun 0
Apr 23 02:51:37 alexia genunix: [ID 936769 kern.info] sd7 is /p...@0
,0/pci1043,8...@1f,2/d...@0,0
Apr 23 02:51:37 alexia genunix: [ID 408114 kern.info] /p...@0
,0/pci1043,8...@1f,2/d...@0,0 (sd7) online
Apr 23 02:51:37 alexia sata: [ID 663010 kern.info] /p...@0,0/pci1043,8...@1f,2
:
Apr 23 02:51:37 alexia sata: [ID 761595 kern.info]      SATA disk device at
port 1
Apr 23 02:51:37 alexia sata: [ID 846691 kern.info]      model WDC
WD10EACS-00ZJB0
Apr 23 02:51:37 alexia sata: [ID 693010 kern.info]      firmware 01.01B01
Apr 23 02:51:37 alexia sata: [ID 163988 kern.info]      serial number
WD-WCASJ1859398
Apr 23 02:51:37 alexia sata: [ID 594940 kern.info]      supported features:
Apr 23 02:51:37 alexia sata: [ID 981177 kern.info]       48-bit LBA, DMA,
Native Command Queueing, SMART, SMART self-test
Apr 23 02:51:37 alexia sata: [ID 643337 kern.info]      SATA Gen2 signaling
speed (3.0Gbps)
Apr 23 02:51:37 alexia sata: [ID 349649 kern.info]      Supported queue
depth 32
Apr 23 02:51:37 alexia sata: [ID 349649 kern.info]      capacity =
1953525168 sectors
Apr 23 02:51:37 alexia scsi: [ID 583861 kern.info] sd8 at ahci0: target 1
lun 0
Apr 23 02:51:37 alexia genunix: [ID 936769 kern.info] sd8 is /p...@0
,0/pci1043,8...@1f,2/d...@1,0
Apr 23 02:51:37 alexia genunix: [ID 408114 kern.info] /p...@0
,0/pci1043,8...@1f,2/d...@1,0 (sd8) online
Apr 23 02:51:37 alexia sata: [ID 663010 kern.info] /p...@0,0/pci1043,8...@1f,2
:
Apr 23 02:51:37 alexia sata: [ID 761595 kern.info]      SATA disk device at
port 2
Apr 23 02:51:37 alexia sata: [ID 846691 kern.info]      model WDC
WD10EADS-65L5B1
Apr 23 02:51:37 alexia sata: [ID 693010 kern.info]      firmware 01.01A01
Apr 23 02:51:37 alexia sata: [ID 163988 kern.info]      serial number
WD-WCAU4A901698
Apr 23 02:51:37 alexia sata: [ID 594940 kern.info]      supported features:
Apr 23 02:51:37 alexia sata: [ID 981177 kern.info]       48-bit LBA, DMA,
Native Command Queueing, SMART, SMART self-test
Apr 23 02:51:37 alexia sata: [ID 643337 kern.info]      SATA Gen2 signaling
speed (3.0Gbps)
Apr 23 02:51:37 alexia sata: [ID 349649 kern.info]      Supported queue
depth 32
Apr 23 02:51:37 alexia sata: [ID 349649 kern.info]      capacity =
1953525168 sectors
Apr 23 02:51:37 alexia scsi: [ID 583861 kern.info] sd9 at ahci0: target 2
lun 0

AFTER

Apr 24 16:19:15 alexia sata: [ID 663010 kern.info] /p...@0,0/pci1043,8...@1f,2
:
Apr 24 16:19:15 alexia sata: [ID 761595 kern.info]      SATA disk device at
port 0
Apr 24 16:19:15 alexia sata: [ID 846691 kern.info]      model WDC
WD10EARS-00Y5B1
Apr 24 16:19:15 alexia sata: [ID 693010 kern.info]      firmware 80.00A80
Apr 24 16:19:15 alexia sata: [ID 163988 kern.info]      serial number
WD-WCAV57869374
Apr 24 16:19:15 alexia sata: [ID 594940 kern.info]      supported features:
Apr 24 16:19:15 alexia sata: [ID 981177 kern.info]       48-bit LBA, DMA,
Native Command Queueing, SMART, SMART self-test
Apr 24 16:19:15 alexia sata: [ID 643337 kern.info]      SATA Gen2 signaling
speed (3.0Gbps)
Apr 24 16:19:15 alexia sata: [ID 349649 kern.info]      Supported queue
depth 32
Apr 24 16:19:15 alexia sata: [ID 349649 kern.info]      capacity =
1953525168 sectors
Apr 24 16:19:15 alexia scsi: [ID 583861 kern.info] sd7 at ahci0: target 0
lun 0
Apr 24 16:19:15 alexia genunix: [ID 936769 kern.info] sd7 is /p...@0
,0/pci1043,8...@1f,2/d...@0,0
Apr 24 16:19:15 alexia genunix: [ID 408114 kern.info] /p...@0
,0/pci1043,8...@1f,2/d...@0,0 (sd7) online
Apr 24 16:19:15 alexia sata: [ID 663010 kern.info] /p...@0,0/pci1043,8...@1f,2
:
Apr 24 16:19:15 alexia sata: [ID 761595 kern.info]      SATA disk device at
port 1
Apr 24 16:19:15 alexia sata: [ID 846691 kern.info]      model WDC
WD10EACS-00ZJB0
Apr 24 16:19:15 alexia sata: [ID 693010 kern.info]      firmware 01.01B01
Apr 24 16:19:15 alexia sata: [ID 163988 kern.info]      serial number
WD-WCASJ1859398
Apr 24 16:19:15 alexia sata: [ID 594940 kern.info]      supported features:
Apr 24 16:19:15 alexia sata: [ID 981177 kern.info]       48-bit LBA, DMA,
Native Command Queueing, SMART, SMART self-test
Apr 24 16:19:15 alexia sata: [ID 643337 kern.info]      SATA Gen2 signaling
speed (3.0Gbps)
Apr 24 16:19:15 alexia sata: [ID 349649 kern.info]      Supported queue
depth 32
Apr 24 16:19:15 alexia sata: [ID 349649 kern.info]      capacity =
1953525168 sectors
Apr 24 16:19:15 alexia scsi: [ID 583861 kern.info] sd8 at ahci0: target 1
lun 0
Apr 24 16:19:15 alexia genunix: [ID 936769 kern.info] sd8 is /p...@0
,0/pci1043,8...@1f,2/d...@1,0
Apr 24 16:19:15 alexia genunix: [ID 408114 kern.info] /p...@0
,0/pci1043,8...@1f,2/d...@1,0 (sd8) online
Apr 24 16:19:15 alexia sata: [ID 663010 kern.info] /p...@0,0/pci1043,8...@1f,2
:
Apr 24 16:19:15 alexia sata: [ID 761595 kern.info]      SATA disk device at
port 2
Apr 24 16:19:15 alexia sata: [ID 846691 kern.info]      model WDC
WD10EADS-65L5B1
Apr 24 16:19:15 alexia sata: [ID 693010 kern.info]      firmware 01.01A01
Apr 24 16:19:15 alexia sata: [ID 163988 kern.info]      serial number
WD-WCAU4A901698
Apr 24 16:19:15 alexia sata: [ID 594940 kern.info]      supported features:
Apr 24 16:19:15 alexia sata: [ID 981177 kern.info]       48-bit LBA, DMA,
Native Command Queueing, SMART, SMART self-test
Apr 24 16:19:15 alexia sata: [ID 643337 kern.info]      SATA Gen2 signaling
speed (3.0Gbps)
Apr 24 16:19:15 alexia sata: [ID 349649 kern.info]      Supported queue
depth 32
Apr 24 16:19:15 alexia sata: [ID 349649 kern.info]      capacity =
1953525168 sectors
Apr 24 16:19:15 alexia scsi: [ID 583861 kern.info] sd9 at ahci0: target 2
lun 0

I had two EACS and one EADS. Now one of each: EARS, EACS and EADS.

I'm searching a little bit about this 4k sectors and OpenSolaris.
I believe I'm gonna swap the old disk back in and see what happens. Even
trying to query something from that EARS disk (format, prtvtoc) is a few
seconds slower than the other two.

Leandro.
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