I have two allegedly identical SanDisk SATA 3 SSD drives connected to my SATA 2 motherboard as a ZFS mirror. Until yesterday both these drives were happily operating in SATA2 mode at 300MB/s but now one of the drives (ada0) is only running in SATA 1 mode at 150MB/s.
I've swapped the drive connections between the SATA ports and tried different cables but the same drive still shows up as SATA 1 so I'm assuming the discrepancy lies with the drive and not the motherboard or drivers.
It appears that the problem first arose yesterday when I re-partitioned the drive to overcome a problem which had been preventing me from booting from it. Copies of /var/run/dmesg.boot from my backups prior to that show that the drive was performing as SATA 2 300MB/s.
Before re-partitioning the drive I used camcontrol to clear its contents and mark all cells empty with:
I'm now only seeing SATA2 150MB/s for that drive.
It looks as though the camcontrol security command has somehow caused the drive to drop down to SATA 1 mode. Is there any way I can use camcontrol (or any other utility) to restore this?
Here's some relevant sections from dmesg:
And some information from camcontrol identify:
I've swapped the drive connections between the SATA ports and tried different cables but the same drive still shows up as SATA 1 so I'm assuming the discrepancy lies with the drive and not the motherboard or drivers.
It appears that the problem first arose yesterday when I re-partitioned the drive to overcome a problem which had been preventing me from booting from it. Copies of /var/run/dmesg.boot from my backups prior to that show that the drive was performing as SATA 2 300MB/s.
Before re-partitioning the drive I used camcontrol to clear its contents and mark all cells empty with:
camcontrol security ada0 -s buhbyesweetdata -e buhbyesweetdataI'm now only seeing SATA2 150MB/s for that drive.
Code:
curlew:/home/mike% camcontrol identify ada0 | head -2
pass1: <SanDisk SD6SB2M128G1022I X210400> ATA8-ACS SATA 3.x device
pass1: 150.000MB/s transfers (SATA 1.x, UDMA5, PIO 512bytes)It looks as though the camcontrol security command has somehow caused the drive to drop down to SATA 1 mode. Is there any way I can use camcontrol (or any other utility) to restore this?
Here's some relevant sections from dmesg:
Code:
atapci1: <nVidia nForce MCP61 SATA300 controller> port 0x9f0-0x9f7,0xbf0-0xbf3,0x970-0x977,0xb70-0xb73,0xd800-0xd80f mem 0xfe02c000-0xfe02cfff irq 21 at device 8.0 on pci0
ata2: <ATA channel> at channel 0 on atapci1
ata3: <ATA channel> at channel 1 on atapci1
atapci2: <nVidia nForce MCP61 SATA300 controller> port 0x9e0-0x9e7,0xbe0-0xbe3,0x960-0x967,0xb60-0xb63,0xc400-0xc40f mem 0xfe02b000-0xfe02bfff irq 22 at device 8.1 on pci0
ata4: <ATA channel> at channel 0 on atapci2
ata5: <ATA channel> at channel 1 on atapci2
ada0 at ata2 bus 0 scbus3 target 0 lun 0
ada0: <SanDisk SD6SB2M128G1022I X210400> ATA8-ACS SATA 3.x device
ada0: Serial Number 133641400083
ada0: 150.000MB/s transfers (SATA 1.x, UDMA5, PIO 512bytes)
ada0: 122104MB (250069680 512 byte sectors)
ada1 at ata3 bus 0 scbus4 target 0 lun 0
ada1: <ST3500418AS CC38> ATA8-ACS SATA 2.x device
ada1: Serial Number 9VMA33V1
ada1: 300.000MB/s transfers (SATA 2.x, UDMA5, PIO 8192bytes)
ada1: 476940MB (976773168 512 byte sectors)
ada2 at ata4 bus 0 scbus5 target 0 lun 0
ada2: <SanDisk SD6SB2M128G1022I X210400> ATA8-ACS SATA 3.x device
ada2: Serial Number 133641400601
ada2: 300.000MB/s transfers (SATA 2.x, UDMA5, PIO 512bytes)
ada2: 122104MB (250069680 512 byte sectors)
ada3 at ata5 bus 0 scbus6 target 0 lun 0
ada3: <ST3500418AS CC38> ATA8-ACS SATA 2.x device
ada3: Serial Number 9VMA33C8
ada3: 300.000MB/s transfers (SATA 2.x, UDMA5, PIO 8192bytes)
ada3: 476940MB (976773168 512 byte sectors)And some information from camcontrol identify:
Code:
curlew:/home/mike% camcontrol identify ada0
pass1: <SanDisk SD6SB2M128G1022I X210400> ATA8-ACS SATA 3.x device
pass1: 150.000MB/s transfers (SATA 1.x, UDMA5, PIO 512bytes)
protocol ATA/ATAPI-8 SATA 3.x
device model SanDisk SD6SB2M128G1022I
firmware revision X210400
serial number 133641400083
WWN 5001b44a293aeb13
cylinders 16383
heads 16
sectors/track 63
sector size logical 512, physical 512, offset 0
LBA supported 250069680 sectors
LBA48 supported 250069680 sectors
PIO supported PIO4
DMA supported WDMA2 UDMA6
media RPM non-rotating
Feature Support Enabled Value Vendor
read ahead yes yes
write cache yes yes
flush cache yes yes
overlap no
Tagged Command Queuing (TCQ) no no
Native Command Queuing (NCQ) yes 32 tags
NCQ Queue Management no
NCQ Streaming no
Receive & Send FPDMA Queued no
SMART yes yes
microcode download yes yes
security yes no
power management yes yes
advanced power management yes yes 128/0x80
automatic acoustic management no no
media status notification no no
power-up in Standby no no
write-read-verify no no
unload no no
general purpose logging yes yes
free-fall no no
Data Set Management (DSM/TRIM) yes
DSM - max 512byte blocks yes 16
DSM - deterministic read yes zeroed
Host Protected Area (HPA) yes no 250069680/250069680
HPA - Security no
curlew:/home/mike% camcontrol identify ada2
pass3: <SanDisk SD6SB2M128G1022I X210400> ATA8-ACS SATA 3.x device
pass3: 300.000MB/s transfers (SATA 2.x, UDMA5, PIO 512bytes)
protocol ATA/ATAPI-8 SATA 3.x
device model SanDisk SD6SB2M128G1022I
firmware revision X210400
serial number 133641400601
WWN 5001b44a293aed19
cylinders 16383
heads 16
sectors/track 63
sector size logical 512, physical 512, offset 0
LBA supported 250069680 sectors
LBA48 supported 250069680 sectors
PIO supported PIO4
DMA supported WDMA2 UDMA6
media RPM non-rotating
Feature Support Enabled Value Vendor
read ahead yes yes
write cache yes yes
flush cache yes yes
overlap no
Tagged Command Queuing (TCQ) no no
Native Command Queuing (NCQ) yes 32 tags
NCQ Queue Management no
NCQ Streaming no
Receive & Send FPDMA Queued no
SMART yes yes
microcode download yes yes
security yes no
power management yes yes
advanced power management yes yes 128/0x80
automatic acoustic management no no
media status notification no no
power-up in Standby no no
write-read-verify no no
unload no no
general purpose logging yes yes
free-fall no no
Data Set Management (DSM/TRIM) yes
DSM - max 512byte blocks yes 16
DSM - deterministic read yes zeroed
Host Protected Area (HPA) yes no 250069680/250069680
HPA - Security no