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 31, 2018
Version 2Show Document
  • View in full screen mode

Article Content

Article Number000036183
Applies ToRSA Product Set: NetWitness Logs & Packets
RSA Product/Service Type: Direct Attached Storage (DAC) -- 60-drive
 
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:

User-added image

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

Attachments

    Outcomes