000036183 - How to replace a disk in a 60-drive DAC utilized in the RSA NetWitness Suite

Document created by RSA Customer Support Employee on Mar 27, 2018Last modified by RSA Customer Support Employee on Mar 26, 2019
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Article Number000036183
Applies ToRSA Product Set: NetWitness Logs & Packets
RSA Product/Service Type: Direct Attached Storage (DAC) -- 60-drive
RSA Version/Condition: 10.6.x, 11.x
IssueThe 60-drive DAC doesn't have the disks on the front side like the 15-drive DAC, so the process to physically replace faulty disks is slightly different.

The 60-drive DAC 4U enclosure is a drawer-type of DAC that slides in and out of the rack with access to the drives from the top. The disk drives, LCCs, and cooling modules are located inside the DAC.

 
Resolution

First of all, follow the steps in the Disk Replacement guide in the following link to prepare the appliance, then in the step "Physically replace the drive", follow the rest of the steps in this article:  https://community.rsa.com/docs/DOC-57956

This is the front view of a 60-drive DAC:

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To gain access to the disks, follow these steps:



  1. Unlock and remove the front bezel. Next, to unlock the DAC from the rails, pull on the orange loops on each side of the DAC. Finally, pull the orange tabs on each side of the DAC to slide the DAC out of the rack on its rails until it locks into the secure service position.
     
    User-added image

         The following picture shows an example of a 4U DAC with the top cover closed:

    User-added image


     
  2. Slide the top cover out to get access to the interior of the DAC:
     
    User-added image

         The following picture shows an example of the interior view of a 4U DAC:


     
    User-added image
     
  3. Locate and replace the disk:

    The disk drives for the 4U DAE are encased in cartridge-style enclosures. This enclosure is used so that varied types and sizes of disk drives can be supported. Each cartridge has an easy-to-pull and push latch. The latch allows you to quickly and efficiently snap-out a disk drive for removal and snap-in for installation.
     

     



    Drive layout



    The left side (red in the picture) corresponds to the first enclosure that you will see in the nwraidutil output, the right side (green in the picture) corresponds to the second enclosure that you will see in the nwraidutil output. Therefore, these internal enclosures will show with a different enclosure number in the nwraidutil, each of them with 30 disks and the disk numbers will alternate on every 6 disks (see below example of nwraidutil for better understanding):
    User-added image

    Below is an example of nwraidutil output:




    Adapter 1 (PERC H810 Adapter) enclosures found: 2
    Adapter 1 (PERC H810 Adapter) enclosure 31 slots found: 30
    Encl  Slot  State     P.Fail.Count  Raw Size       Inquiry Data
    31    0     (O)       0             2.728 TB       SEAGATE ST33000XXXXX
    31    1     (O)       0             2.728 TB       SEAGATE ST33000XXXXX
    31    2     (O)       0             2.728 TB       SEAGATE ST33000XXXXX
    31    3     (O)       0             2.728 TB       SEAGATE ST33000XXXXX
    31    4     (O)       0             2.728 TB       SEAGATE ST33000XXXXX
    31    5     (O)       0             2.728 TB       SEAGATE ST33000XXXXX
    31    12    (O)       0             2.728 TB       SEAGATE ST33000XXXXX
    31    13    (O)       0             2.728 TB       SEAGATE ST33000XXXXX
    31    14    (O)       0             2.728 TB       SEAGATE ST33000XXXXX
    31    15    (O)       0             2.728 TB       SEAGATE ST33000XXXXX
    31    16    (O)       0             2.728 TB       SEAGATE ST33000XXXXX
    31    17    (O)       0             2.728 TB       SEAGATE ST33000XXXXX
    31    24    (O)       0             2.728 TB       SEAGATE ST33000XXXXX
    31    25    (O)       0             2.728 TB       SEAGATE ST33000XXXXX
    31    26    (O)       0             2.728 TB       SEAGATE ST33000XXXXX
    31    27    (O)       0             2.728 TB       SEAGATE ST33000XXXXX
    31    28    (O)       0             2.728 TB       SEAGATE ST33000XXXXX
    31    29    (O)       0             2.728 TB       SEAGATE ST33000XXXXX
    31    36    (O)       0             2.728 TB       SEAGATE ST33000XXXXX
    31    37    (O)       0             2.728 TB       SEAGATE ST33000XXXXX
    31    38    (O)       0             2.728 TB       SEAGATE ST33000XXXXX
    31    39    (O)       0             2.728 TB       SEAGATE ST33000XXXXX
    31    40    (O)       0             2.728 TB       SEAGATE ST33000XXXXX
    31    41    (O)       0             2.728 TB       SEAGATE ST33000XXXXX
    31    48    (O)       0             2.728 TB       SEAGATE ST33000XXXXX
    31    49    (O)       0             2.728 TB       SEAGATE ST33000XXXXX
    31    50    (O)       0             2.728 TB       SEAGATE ST33000XXXXX
    31    51    (O)       0             2.728 TB       SEAGATE ST33000XXXXX
    31    52    (O)       0             2.728 TB       SEAGATE ST33000XXXXX
    31    53    (GEI)     0             2.728 TB       SEAGATE ST33000XXXXX

    Adapter 1 (PERC H810 Adapter) enclosure 62 slots found: 30
    Encl  Slot  State     P.Fail.Count  Raw Size       Inquiry Data
    62    6     (O)       0             2.728 TB       SEAGATE ST33000XXXXX
    62    7     (O)       0             2.728 TB       SEAGATE ST33000XXXXX
    62    8     (O)       0             2.728 TB       SEAGATE ST33000XXXXX
    62    9     (O)       0             2.728 TB       SEAGATE ST33000XXXXX
    62    10    (O)       0             2.728 TB       SEAGATE ST33000XXXXX
    62    11    (O)       0             2.728 TB       SEAGATE ST33000XXXXX
    62    18    (O)       0             2.728 TB       SEAGATE ST33000XXXXX
    62    19    (O)       0             2.728 TB       SEAGATE ST33000XXXXX
    62    20    (O)       0             2.728 TB       SEAGATE ST33000XXXXX
    62    21    (O)       0             2.728 TB       SEAGATE ST33000XXXXX
    62    22    (O)       0             2.728 TB       SEAGATE ST33000XXXXX
    62    23    (O)       0             2.728 TB       SEAGATE ST33000XXXXX
    62    30    (O)       0             2.728 TB       SEAGATE ST33000XXXXX
    62    31    (O)       0             2.728 TB       SEAGATE ST33000XXXXX
    62    32    (O)       0             2.728 TB       SEAGATE ST33000XXXXX
    62    33    (O)       0             2.728 TB       SEAGATE ST33000XXXXX
    62    34    (O)       0             2.728 TB       SEAGATE ST33000XXXXX
    62    35    (O)       0             2.728 TB       SEAGATE ST33000XXXXX
    62    42    (O)       0             2.728 TB       SEAGATE ST33000XXXXX
    62    43    (O)       0             2.728 TB       SEAGATE ST33000XXXXX
    62    44    (O)       0             2.728 TB       SEAGATE ST33000XXXXX
    62    45    (O)       0             2.728 TB       SEAGATE ST33000XXXXX
    62    46    (O)       0             2.728 TB       SEAGATE ST33000XXXXX
    62    47    (O)       0             2.728 TB       SEAGATE ST33000XXXXX
    62    54    (O)       0             2.728 TB       SEAGATE ST33000XXXXX
    62    55    (O)       0             2.728 TB       SEAGATE ST33000XXXXX
    62    56    (O)       0             2.728 TB       SEAGATE ST33000XXXXX
    62    57    (O)       0             2.728 TB       SEAGATE ST33000XXXXX
    62    58    (O)       0             2.728 TB       SEAGATE ST33000XXXXX
    62    59    (GEI)     0             2.728 TB       SEAGATE ST33000XXXXX


     

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