RN316 running drives at 3Gb/s

Question

I have all 6Gb/s capable drives installed but they are all operating at the slower speed. Any clues what could be going on? Latest FW with three Seagate 16TB Ironwolf NAS drives and three WDC 8TB Reds. All drives in good operating conditions with no errors or other problems reported or apparent. The Ironwolfs are brand new.

TIA!

Sandshark · Answer

And you believe this why?&nbsp;Do you have an eSATA device connected?&nbsp; The eSATA is only capable of 3Gb/s and while I don't think it slows the others down, maybe it does.

JHRR · Answer

Thanks for the reply Sandshark. No, these are all the internal drives. No drives USB or eSATA connected externally at all.

Sandshark · Answer

And the method you used to determine they are only at 3Gb/sec?&nbsp; Spinning platter drives are not capable of maintaing that rate, so timing a transfer won't tell you.

schumaku · Answer

This will return the negotiated SATA link speed:
&nbsp;
root@RNxxxX:~# smartctl -a /dev/sda | grep "^SATA"SATA Version is: SATA 3.0, 6.0 Gb/s (current: 6.0 Gb/s)root@RNxxxX:~# smartctl -a /dev/sdb | grep "^SATA"SATA Version is: SATA 3.0, 6.0 Gb/s (current: 6.0 Gb/s)root@RNxxxX:~# smartctl -a /dev/sdc | grep "^SATA"SATA Version is: SATA 3.0, 6.0 Gb/s (current: 6.0 Gb/s)root@RNxxxX:~# smartctl -a /dev/sdd | grep "^SATA"SATA Version is: SATA 3.0, 6.0 Gb/s (current: 6.0 Gb/s)...

JHRR · Answer

Schumaku/Sandshark,I should have posted more information. I had looked at a lot of the common information so here is a dump of some of the SATA relevant information.&nbsp;$ sudo smartctl -a /dev/sdb | grep ATAATA Version is: ACS-4 (minor revision not indicated)SATA Version is: SATA 3.3, 6.0 Gb/s (current: 3.0 Gb/s)&nbsp;$ sudo smartctl -a /dev/sdb | grep ATAATA Version is: ACS-4 (minor revision not indicated)SATA Version is: SATA 3.3, 6.0 Gb/s (current: 3.0 Gb/s)$ sudo smartctl -a /dev/sdc | grep ATAATA Version is: ACS-4 (minor revision not indicated)SATA Version is: SATA 3.3, 6.0 Gb/s (current: 3.0 Gb/s)$ sudo smartctl -a /dev/sdd | grep ATAATA Version is: ACS-2, ATA8-ACS T13/1699-D revision 4SATA Version is: SATA 3.1, 6.0 Gb/s (current: 3.0 Gb/s)$ sudo smartctl -a /dev/sde | grep ATAATA Version is: ACS-2, ATA8-ACS T13/1699-D revision 4SATA Version is: SATA 3.1, 6.0 Gb/s (current: 3.0 Gb/s)$ sudo smartctl -a /dev/sdf | grep ATAATA Version is: ACS-2, ATA8-ACS T13/1699-D revision 4SATA Version is: SATA 3.1, 6.0 Gb/s (current: 3.0 Gb/s)&nbsp;From boot dmesg log:&nbsp;[ 2.989286] ahci 0000:00:1f.2: AHCI 0001.0200 32 slots 6 ports 3 Gbps 0x3f impl SATA mode&nbsp;[ 3.485033] ata1: SATA link up 3.0 Gbps (SStatus 123 SControl 300)[ 3.526611] ata1.00: ATA-11: ST16000NM001G-2KK103, SN03, max UDMA/133[ 3.560335] scsi 0:0:0:0: Direct-Access ATA ST16000NM001G-2K SN03 PQ: 0 ANSI: 5[ 4.021003] ata2: SATA link up 3.0 Gbps (SStatus 123 SControl 300)[ 4.066459] ata2.00: ATA-11: ST16000NM001G-2KK103, SN03, max UDMA/133[ 4.100159] scsi 1:0:0:0: Direct-Access ATA ST16000NM001G-2K SN03 PQ: 0 ANSI: 5[ 4.560971] ata3: SATA link up 3.0 Gbps (SStatus 123 SControl 300)[ 4.601178] ata3.00: ATA-11: ST16000NM001G-2KK103, SN03, max UDMA/133[ 4.634898] scsi 2:0:0:0: Direct-Access ATA ST16000NM001G-2K SN03 PQ: 0 ANSI: 5[ 5.048934] ata7: SATA link down (SStatus 0 SControl 0)[ 5.095918] ata4: SATA link up 3.0 Gbps (SStatus 123 SControl 300)[ 5.098506] ata4.00: ATA-9: WDC WD80EFZX-68UW8N0, 83.H0A83, max UDMA/133[ 5.103753] scsi 3:0:0:0: Direct-Access ATA WDC WD80EFZX-68U 0A83 PQ: 0 ANSI: 5[ 5.564898] ata5: SATA link up 3.0 Gbps (SStatus 123 SControl 300)[ 5.567473] ata5.00: ATA-9: WDC WD80EFZX-68UW8N0, 83.H0A83, max UDMA/133[ 5.572739] scsi 4:0:0:0: Direct-Access ATA WDC WD80EFZX-68U 0A83 PQ: 0 ANSI: 5[ 6.033872] ata6: SATA link up 3.0 Gbps (SStatus 123 SControl 300)[ 6.036477] ata6.00: ATA-9: WDC WD80EFZX-68UW8N0, 83.H0A83, max UDMA/133[ 6.041693] scsi 5:0:0:0: Direct-Access ATA WDC WD80EFZX-68U 0A83 PQ: 0 ANSI: 5[ 8.062757] ata8: SATA link down (SStatus 0 SControl 0)&nbsp;I find that dmesg log item&nbsp;@2.989286 particularly since it suggests the AHCI controller is limiting itself to 3Gb/s. I don't know why it would have done this. As an additional note this unit has been factory reset within the last few weeks.&nbsp;I have a second ReadyNAS (an RN104). The dmesg boot log from this illustrates the difference. What I obviously don't know is why they are different. The newer RN316 operates at a slower SATA interface speed than the old RN104. You can see the first line indicates the AHCI is 4 ports at 6 Gbps. And the four drives come up at 6 Gbps link speeds just fine.&nbsp;[ 3.830251] ahci 0000:02:00.0: AHCI 0001.0000 32 slots 4 ports 6 Gbps 0xf impl SATA mode[ 3.837724] ata1: SATA max UDMA/133 abar m2048@0xf8110000 port 0xf8110100 irq 109[ 3.837736] ata2: SATA max UDMA/133 abar m2048@0xf8110000 port 0xf8110180 irq 109[ 3.837747] ata3: SATA max UDMA/133 abar m2048@0xf8110000 port 0xf8110200 irq 109[ 3.837757] ata4: SATA max UDMA/133 abar m2048@0xf8110000 port 0xf8110280 irq 109[ 3.841026] ata5: SATA max UDMA/133 irq 28[ 4.190115] ata5: SATA link down (SStatus 0 SControl F300)[ 4.380092] ata2: SATA link up 6.0 Gbps (SStatus 133 SControl 300)[ 4.380143] ata1: SATA link up 6.0 Gbps (SStatus 133 SControl 300)[ 4.388702] ata1.00: ATA-9: WDC WD4001F9YZ-09GHXL0, 01.01A01, max UDMA/133[ 4.388754] ata2.00: ATA-9: WDC WD4001F9YZ-09GHXL0, 01.01A01, max UDMA/133[ 4.401747] scsi 0:0:0:0: Direct-Access ATA WDC WD4001F9YZ-0 1A01 PQ: 0 ANSI: 5[ 4.405921] scsi 1:0:0:0: Direct-Access ATA WDC WD4001F9YZ-0 1A01 PQ: 0 ANSI: 5[ 6.910096] ata3: SATA link up 6.0 Gbps (SStatus 133 SControl 300)[ 6.969469] ata3.00: ATA-9: WDC WD4001F9YZ-09GHXL0, 01.01A01, max UDMA/133[ 6.982440] scsi 2:0:0:0: Direct-Access ATA WDC WD4001F9YZ-0 1A01 PQ: 0 ANSI: 5[ 8.050122] ata4: SATA link up 6.0 Gbps (SStatus 133 SControl 300)[ 8.124776] ata4.00: ATA-9: WDC WD4001F9YZ-09GHXL0, 01.01A01, max UDMA/133[ 8.137641] scsi 3:0:0:0: Direct-Access ATA WDC WD4001F9YZ-0 1A01 PQ: 0 ANSI: 5&nbsp;Thanks!

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RN316 running drives at 3Gb/s

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