February 3, 20206 yr Not really sure what is going on but my UnRaid system is reporting the "SATA Version is 3.2, 6.0 Gb/s (Current 3.0 Gb/s)". I noticed this was an issued when I was transfering files over a 10 Gb/s network and it was only transferring at 350 Mb/s ish. I then started to investigate and found that the Drive information is saying it support 6.0 Gb/s but is only running at 3.0 Gb/s I've somewhat narrowed it down to the onboard motherboard sas controller and/or UnRaid. I have verified in the BIOS it is set to AHCI mode (all available options are: IDE, RAID, AHCI). I'm fairly certain the Onboard controller supports 6.0 Gb/s but the server spec sheet does not specify. The 2nd card I am using the add-on card (85M9R - Dell Mezzanine aka LSI SAS2008 card) that can come installed in the server which supports SATA 6.0 Gb/s and all the attached drives also show as 6.0 Gb/s. Hardware: BIOS on latest Dell C2100 Can anyone point me in the right direction and maybe explain what could be happening or even better some ideas to fix the problem?
February 3, 20206 yr 39 minutes ago, pish180 said: Not really sure what is going on but my UnRaid system is reporting the "SATA Version is 3.2, 6.0 Gb/s (Current 3.0 Gb/s)". I noticed this was an issued when I was transfering files over a 10 Gb/s network and it was only transferring at 350 Mb/s ish. I then started to investigate and found that the Drive information is saying it support 6.0 Gb/s but is only running at 3.0 Gb/s I've somewhat narrowed it down to the onboard motherboard sas controller and/or UnRaid. I have verified in the BIOS it is set to AHCI mode (all available options are: IDE, RAID, AHCI). I'm fairly certain the Onboard controller supports 6.0 Gb/s but the server spec sheet does not specify. The 2nd card I am using the add-on card (85M9R - Dell Mezzanine aka LSI SAS2008 card) that can come installed in the server which supports SATA 6.0 Gb/s and all the attached drives also show as 6.0 Gb/s. Hardware: BIOS on latest Dell C2100 Can anyone point me in the right direction and maybe explain what could be happening or even better some ideas to fix the problem? The reported version is read from the drive's controller as the supported link speed, the current is the negotiated link speed. Cable length, quality, and controller support all matter for the negotiated link. According to the spec sheet for the C2100 (https://www.dell.com/downloads/global/products/pedge/en/PoweEdge_C2100_Spec_Sheet_122710.pdf) it's Sata II on board. It has support for SAS 6Gb/s and Sata II (so 3gb/s) Much like the HP Port expander.
February 3, 20206 yr Author 1 hour ago, Xaero said: The reported version is read from the drive's controller as the supported link speed, the current is the negotiated link speed. Cable length, quality, and controller support all matter for the negotiated link. According to the spec sheet for the C2100 (https://www.dell.com/downloads/global/products/pedge/en/PoweEdge_C2100_Spec_Sheet_122710.pdf) it's Sata II on board. It has support for SAS 6Gb/s and Sata II (so 3gb/s) Much like the HP Port expander. I don't see where it says SATA II for the controller in that doc. I see SATA II drives as an option.
February 3, 20206 yr 9 hours ago, pish180 said: I don't see where it says SATA II for the controller in that doc. I see SATA II drives as an option. https://www.dell.com/community/PowerEdge-HDD-SCSI-RAID/c2100-backplane-speed-6gb-s-with-ssd-drives/td-p/4525346 https://www.dell.com/community/PowerEdge-HDD-SCSI-RAID/c2100-expander-question/td-p/4061496 Dell support also says they are Sata 3gb/s
February 3, 20206 yr Author 1 hour ago, Xaero said: https://www.dell.com/community/PowerEdge-HDD-SCSI-RAID/c2100-backplane-speed-6gb-s-with-ssd-drives/td-p/4525346 https://www.dell.com/community/PowerEdge-HDD-SCSI-RAID/c2100-expander-question/td-p/4061496 Dell support also says they are Sata 3gb/s Sorry I thought I posted this yesterday: (I forgot to hit submit) I found an old post on the FreeNAS forums from a user that has 8 of these C2100 servers (FS12-TY motherboard) and confirmed that the 6 x onboard SATA ports are SATA 2. I never noticed this before running FreeNAS because all the drives were in a ZFS array and the speed would have been next to impossible to notice a few drives out of spec. The good news is... I have another slot and another HBA and PCI-e slot that I can connect the remaining drives too, I just need to order the cables. SFF-8484 to SFF-8087. *Check*
Archived
This topic is now archived and is closed to further replies.