1 2 Previous Next 15 Replies Latest reply on Mar 27, 2018 2:37 PM by Intel Corporation

    ISDCT occasionally reports very high NativeMaxLBA

    Deix

      Hi,

       

      We sometimes encounter a problem where ISDCT reports very high NativeMaxLBA. I have logs from Ubuntu 16 (I'm not sure if problem happens on other OSes), where NVMe drive is formatted to atomic format (LBAF 1):

       

      nvme_id_ns /dev/nvme0n1 | grep '(in use)'

      #Exit code: 0, duration: 00:00:00.0155966

      #stdout:

      # lbaf  1 : ms:8  ds:9  rp:0x2 (in use)

       

      isdct show -display Index -intelssd

      #Exit code: 0, duration: 00:00:00.1250539

      #stdout:

      # - Intel SSD DC P3700 Series CVFT42150041400BGN -

      # Index : 0

      # - Intel SSD DC P3700 Series CVFT42150085400BGN -

      # Index : 1

      # - Intel SSD DC S3700 Series BTTV227401GB100FGN -

      # Index : 2

      # - Intel SSD DC S3700 Series BTTV227301HG100FGN -

      # Index : 3

       

      isdct show -display NativeMaxLBA -intelssd 0

      #Exit code: 0, duration: 00:00:00.1250295

      #stdout:

      # - Intel SSD DC P3700 Series CVFT42150041400BGN -

      # NativeMaxLBA : 9223372036854775807

       

      isdct set -intelssd 0 MaximumLBA=native

      #Exit code: 0, duration: 00:00:00.1406744

      #stdout:

      # Set MaximumLBA successful. Please power cycle the device.

       

      isdct show -display MaximumLBA -intelssd 0

      #Exit code: 0, duration: 00:00:00.1250353

      #stdout:

      # - Intel SSD DC P3700 Series CVFT42150041400BGN -

      # MaximumLBA : 781422767

       

      The value displayed in red is max Int64 value. As you can see after setting NativeMaxLBA to 'native' value returns to normal. Any ideas what could cause such behavior?

        • 1. Re: ISDCT occasionally reports very high NativeMaxLBA
          Intel Corporation
          This message was posted on behalf of Intel Corporation

          Hello Deix,

          Thanks for posting in our community. We understand that you're experiencing a problems with the reported NativeMaxLBA for your NVMe drives.

          In order to better assist you, please provide us with the following information:

          - What ISDCT (Intel® SSD Data Center Tool) version are you using?
          - Is the issue limited to your Intel® SSD DC P3700 Series, or are there other models affected?
          - What's the firmware version on your Intel® SSD DC P3700 Series?
          - Have you confirmed if the reported value is present on other NVMe drive formats other than LBAF 1?

          Best regards,
          Eugenio F.

          • 2. Re: ISDCT occasionally reports very high NativeMaxLBA
            Deix

            Hello Eugenio,

             

            The ISDCT version used was 3.0.9.

            For now we have 2 documented occurrences, both on Intel SSD DC P3700 Series drives formatted to LBAF 1, with 8DV10130 firmware on one and 8DV10171 on the other device.

            There were some earlier sightings for this issue, but unfortunately no data were collected and I cannot confirm that only this configuration is affected basing on 2 mentioned occurrences.

             

            Best regards!

            • 3. Re: ISDCT occasionally reports very high NativeMaxLBA
              Intel Corporation
              This message was posted on behalf of Intel Corporation

              Hello Deix,

              Thanks for your reply.

              The latest firmware for Intel® SSD DC P3700 Series is 8DV101H0. Please install the latest version of ISDCT (3.0.10 as of today) and update the firmware on both drives using ISDCT.

              Please let us know if the issue persists.

              Best regards,
              Eugenio F.

              • 4. Re: ISDCT occasionally reports very high NativeMaxLBA
                Deix

                Hi,

                 

                I have updated ISDCT to 3.0.10 and performed FW update on few NVMe P3700 disks (not the ones tested before) and all disks with new FW are non-formattable now. (Actually format works only to current setting which is LBAF 0, any other target LBAF results in output as below). This also means that I cannot provide any info if the FW update solves our earlier problem. I'm not going to update any more disks for now, as we don't want to lose the ability to change LBAF.

                 

                # isdct show -intelssd 0

                 

                - Intel SSD DC P3700 Series CVFT4215005G400BGN -

                 

                Bootloader : 8B1B0133

                DevicePath : /dev/nvme0n1

                DeviceStatus : Healthy

                Firmware : 8DV101H0

                FirmwareUpdateAvailable : The selected Intel SSD contains current firmware as of this tool release.

                Index : 0

                ModelNumber : INTEL SSDPEDMD400G4

                ProductFamily : Intel SSD DC P3700 Series

                SerialNumber : CVFT4215005G400BGN

                 

                # isdct start -intelssd 0 -nvmeformat LBAFormat = 1 SecureEraseSetting = 0 MetadataSettings = 1

                WARNING! You have selected to format the drive!

                Proceed with the format? (Y|N): y

                Formatting...(This can take several minutes to complete)

                 

                - Intel SSD DC P3700 Series CVFT4215005G400BGN -

                 

                Status : NVMe command reported a problem.

                 

                With other tool:
                #nvme_format_ns /dev/nvme0n1 1 1 0

                 

                Entered format index 1, ms 1, ses 0, formatting namespace

                NVME Admin command error:6

                 

                 

                Do you have any recommendation so we can format the disks again? Is there a possibility to downgrade FW?

                • 5. Re: ISDCT occasionally reports very high NativeMaxLBA
                  Intel Corporation
                  This message was posted on behalf of Intel Corporation

                  Hello Deix,

                   

                  I'll like to check this with our engineers. Before I do so, there are a couple of things we need to confirm:

                   

                  - What's your motherboard model?
                  - Are the Intel® SSD DC P3700 plugged directly to the motherboard PCIe slots, or are there any devices in between (such as a RAID controllers)? If so, please provide us with the device model.

                  - We understand you're using Ubuntu 16*. What's the exact version and kernel?

                   

                  Best regards,
                  Eugenio F.

                  • 6. Re: ISDCT occasionally reports very high NativeMaxLBA
                    Intel Corporation
                    This message was posted on behalf of Intel Corporation

                    Hello Deix

                     

                    We haven't heard from you in a while. Please let us know if there's anything else we can do for you.

                     

                    Best regards,
                    Eugenio F.

                    • 7. Re: ISDCT occasionally reports very high NativeMaxLBA
                      Deix

                      Hi Eugenio,

                       

                      It busy time for me, hence the delay

                      The info you asked for:

                      1. Motherboard in mentioned computer is:

                              Manufacturer: ASUSTeK COMPUTER INC.

                              Product Name: RAMPAGE IV EXTREME

                              Version: Rev 1.xx

                      2. The drives are plugged directly to PCIe slots

                      3. We use Ubuntu 16.04 on kernel 4.4.0-28-generic

                       

                      Hope this info will be useful.

                       

                      Regards,

                      Daniel

                      • 8. Re: ISDCT occasionally reports very high NativeMaxLBA
                        Intel Corporation
                        This message was posted on behalf of Intel Corporation

                        Hello Deix,

                        Thanks for your reply. I'll review this with a higher tier of support and we'll be back with you as soon as possible.

                        Best regards,
                        Eugenio F.

                        • 9. Re: ISDCT occasionally reports very high NativeMaxLBA
                          Intel Corporation
                          This message was posted on behalf of Intel Corporation

                          Hello Deix,

                           

                          Some points regarding your configuration called our attention. Please let us know the following:

                           

                          - Can you test formatting the drives on a different flavor of Linux*? ISDCT has not been validated on Ubuntu* and the drives are usually tested on Red Hat* and SUSE*.
                          - Have you tested using a previous version of ISDCT? You upgraded from version 3.0.9 to 3.0.10. The previous version is still available for download.

                           

                          Best regards,
                          Eugenio F.

                          • 10. Re: ISDCT occasionally reports very high NativeMaxLBA
                            Deix

                            Hi Eugenio,

                             

                            After new firmware was uploaded I've tested formatting with both ISDCT 3.0.9 and 3.0.10, and now also on SUSE Linux Enterprise Server 12 SP3 (kernel 4.4.103-6.38-default) (both ISDCT versions).

                            Every time I get:

                             

                            # isdct start -intelssd 0 -nvmeformat LBAFormat = 1 SecureEraseSetting = 0 MetadataSettings = 1

                            WARNING! You have selected to format the drive!

                            Proceed with the format? (Y|N): y

                            Formatting...(This can take several minutes to complete)

                             

                            - Intel SSD DC P3700 Series CVFT4215005G400BGN -

                             

                            Status : NVMe command reported a problem.

                             

                             

                            Regards,

                            Daniel

                            • 11. Re: ISDCT occasionally reports very high NativeMaxLBA
                              Intel Corporation
                              This message was posted on behalf of Intel Corporation

                              Hello Daniel,

                              Thank you so much for taking the time to ran the tests.

                              Please allow us more time to keep investigating based on this information.

                              Best regards,
                              Eugenio F.

                              • 12. Re: ISDCT occasionally reports very high NativeMaxLBA
                                Intel Corporation
                                This message was posted on behalf of Intel Corporation

                                Hello Deix,

                                 

                                Thanks for your patience.

                                 

                                We were able to update firmware on our Intel® SSD P3700 to the latest version (8DV101H0) and format it to LBA1. We also noticed the NativeMaxLBA reported as normal.

                                 

                                The test was run on Cent OS 7*, please refer to the attached log for the command flow. Tests on Ubuntu* are still pending.

                                 

                                If you have any system with Cent OS*, you may test formatting the drives there. We'll let you know as soon as we run tests on Ubuntu*.

                                 

                                Best regards,
                                Eugenio F.

                                • 13. Re: ISDCT occasionally reports very high NativeMaxLBA
                                  Intel Corporation
                                  This message was posted on behalf of Intel Corporation

                                  Hello Deix,

                                   

                                  We've performed a the test on Ubuntu 16.04. We secured erase drive and were able to successfully format to LBAF 1.

                                   

                                  However, we did notice the NativeMaxLBA was reporting a high value. Though this doesn't affect drive performance, I've reported the issue to our engineers.

                                   

                                  As for the drives, please let us know if you're still experimenting issues to format them to LBAF 1.

                                   

                                  Best regards,
                                  Eugenio F.

                                  • 14. Re: ISDCT occasionally reports very high NativeMaxLBA
                                    Deix

                                    Eugenio, thanks for investigating this.

                                     

                                    I'm glad that the high Max LBA issue was noticed, and hopefully will be fixed soon, although it looks a bit different than the issue I have encountered (in your case the value looks quite random, in mine it looked like -1 unsigned overflow - 0x7FFFFFFFFFFFFFFF).

                                    Unfortunately I will not have time to pursue the formatting issue anytime soon (the problem is still present).

                                     

                                    Thanks for your help and time!

                                    Daniel

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