5 Replies Latest reply on May 31, 2018 9:25 AM by Andris Perkons-Oracle

    exadata x3-2 disk locations


      Hi all!


      I have an exadata machine (x3-2) in which about 3 disks are failed, and I need to replace them one by one. I found some documentation in how to replace the disks, but something remains unclear is hos to identify the disk that is to be replaced.

      In my case I have 3 amber disks, and the output of the following command in one storage server cell tells me:



      20:0 K2XS3N          normal

              20:1 KGGNUL          failed

      20:2 K2Z40N          warning - poor performance

      20:3 KGGH2L          warning - poor performance

      20:4 K04M8N          failed

      20:5 KVT1MN          normal

      20:6 K24KEN          warning - poor performance

      20:7 KGGH5L          warning - poor performance

      20:8 K1YTGN          failed

      20:9 KGG46L          normal

              20:10 KG7RXL          normal

      20:11 K2ZUPN          normal

      FLASH_1_0 5L00677V        normal

      FLASH_1_1 5L0066GQ        normal

      FLASH_1_2       5L0066D5 normal

      FLASH_1_3 5L0066CW        normal

      FLASH_2_0 FL00219Q        failed

      FLASH_2_1 FL00219W        warning - peer failure

      FLASH_2_2 FL0021AX        warning - peer failure

      FLASH_2_3 FL0021B7        warning - peer failure

      FLASH_4_0 FL004Z4E        normal

      FLASH_4_1 FL004ZEJ        normal

      FLASH_4_2 FL004Z0T        normal

      FLASH_4_3 FL004XWR        normal

      FLASH_5_0 FL004XPK        normal

      FLASH_5_1 FL004YXH        normal

      FLASH_5_2 FL004XZR        normal



      But now how to identify disk 20:1 disk in the rack? and 20:4?









        • 1. Re: exadata x3-2 disk locations
          Andris Perkons-Oracle

          Take a close look at the storage server. On the right side, you will find a small sticker labeled "HDD map" which shows you how the disks are numbered.

          Alternatively, as an Exadata customer, you also should have MOS access. On the "EOL" systems list, locate the X3-2L server and click on the "Front View" icon to enlarge it.


          You will notice that the disks are numbered left-to-right, bottom-to-top. I.e: Disk 0 is located at the bottom left, next to it you will find Disk 1, then Disk 2 and Disk 3. Disk 4 is on the left slot in the middle row, and so on.


          After you pulled the first disk, verify that the serial number matches the one in your output.



          • 2. Re: exadata x3-2 disk locations




            I think you can find with 'detail' option.


            CellCLI> list physicaldisk 'X' detail


            'X' is phical disk name





            • 3. Re: exadata x3-2 disk locations

              You can also find with



              cellcli>list alert history

              cellcli>list alerthistory 'X' detail


              where 'X' object name.



              CellCLI> list physicaldisk where disktype=flashdisk and status=failed detail



              3. If you have OEM alerts setup, details will be in alert message



              • 4. Re: exadata x3-2 disk locations

                thank you very much, I got it, but I have 7 storage servers and 4 database servers, and in one storage server I still have an amber led lit in disk 5, but all other disks are green. Strangely when I run :

                LIST PHYSICALDISK WHERE diskType=HardDisk AND status LIKE ".*failure.*" DETAIL


                shows nothing, but if I run:

                CellCLI> LIST PHYSICALDISK

                20:0            K2XS3N          normal

                         20:1            KGGNUL          failed

                         20:2            K2Z40N          warning - poor performance

                         20:3            KGGH2L          warning - poor performance

                         20:4            K04M8N          failed

                         20:5            KVT1MN          normal

                         20:6            K24KEN          warning - poor performance

                         20:7            KGGH5L          warning - poor performance

                         20:8            KKNJPL          normal

                         20:9            KGG46L          normal

                         20:10           KG7RXL          normal

                         20:11           K2ZUPN          normal

                         FLASH_1_0       5L00677V        normal

                         FLASH_1_1       5L0066GQ        normal

                         FLASH_1_2       5L0066D5        normal

                         FLASH_1_3       5L0066CW        normal

                         FLASH_2_0       FL00219Q        failed

                         FLASH_2_1       FL00219W        warning - peer failure

                         FLASH_2_2       FL0021AX        warning - peer failure

                         FLASH_2_3       FL0021B7        warning - peer failure

                         FLASH_4_0       FL004Z4E        normal

                         FLASH_4_1       FL004ZEJ        normal

                         FLASH_4_2       FL004Z0T        normal

                         FLASH_4_3       FL004XWR        normal

                         FLASH_5_0       FL004XPK        normal

                         FLASH_5_1       FL004YXH        normal

                         FLASH_5_2       FL004XZR        normal


                so disks 1 and 4 are faulty, but they are green led on them. So am I missing something here? How to identify this server?

                • 5. Re: exadata x3-2 disk locations
                  Andris Perkons-Oracle

                  Since you have logged in to that particular system, you already know it's name, right?

                  Now, if you do not know the system's location in your Exadata rack, you can turn on the "Locator LED" on the system:

                  - Log in to the system's ilom. Typically, it's the same hostname, appended with "-ilom". So, if your storage server's name is "exacel01", then the ILOM will be "exacel01-ilom".

                  - Turn on the locator LED with "set /System/locator_indicator=on"




                  PS: The servers in an Exadata usually are named bottom to top. Make sure you are looking at the right system. An amber LED indicates a "real" physical problem and this should also be reflected in the output of "LIST PHYSICALDISK". OTOH, especially with older Exadata software releases, disks got tagged as "failed" even when they just had a small hiccup. This has been fixed in later releases (see https://docs.oracle.com/cd/E80920_01/DBMSO/exadata-whatsnew.htm#DBMSO22125 ).

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