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    How to replace defective drive, rebuild RAID, create new iSCSI target, VHD and LUNs for DIP 7000 R2?

    The purpose of this article is to provide the step-by-step process for replacing defective drive, rebuild RAID, create new iSCSI target, VHD and LUNs for DIP 7000 R2.

     

    Step-by-step guide:

     

    1. Disk fails

     

    Accessing MegaRAID Storage Manager After logging into the DIP7000, there is a shortcut on the desktop for the “MegaRAID Storage Manager” application.
    Double click the icon to access the application.
    This menu will list the IP address of the appliance. Select the IP address.

    Central_Support_0-1629714662864.png
    Central_Support_1-1629714685871.png

     

    2. Access the MegaRaid

     

    Central_Support_2-1629714739405.png

    This will open a login menu. To access the controller, you must use the administrative credentials for the operating system.

    • User name: BVRAdmin
    • Password: WSS4Bosch
    Central_Support_3-1629714779925.png
     

     

    3. MegaRaid Main Page

     

    Central_Support_4-1629714872274.png

     

    4. Locate the failed drive

     

    When working with a DIP that is configured for RAID 5, the array itself can sustain a one drive failure and successfully recover with all data intact.
    While drives are hot swappable, the proper steps to replace a drive are:

    1. From the "Logical" tab menu, the failed drive can be identified by the red dot next to the drive icon.
    2. Once the drive has been identified, right click the icon and select "Mark Drive as Missing“


    This marks an offline/failed drive of a degraded array as missing in order to prepare the drive for replacement

    Central_Support_5-1629714913254.png

     

    5. Confirm Offline

     

    You should receive a set of warnings. Select "Confirm and yes to both.

    Central_Support_6-1629714942090.png

     

    Note: If during this process you receive "Alerts", select "Dismiss".

     

    6. Locate the defective drive

     

    To locate the correct drive for replacement, right click the drive's icon and select "Start Locating Drive".

    Central_Support_7-1629714989384.png

    This will cause the drive's LED to flash

     

    Central_Support_9-1629715050505.png

     

    7. Take the defective drive out

     

    The hard drives are mounted in hard drive carriers to simplify their installation and removal from the chassis.
    The unit features hot-swappable hard drives which can be removed without powering down the system

    1. Press the release button to the right of the hard drive carrier. This extends the hard drive carrier handle
    2. Use the handle to pull the drive out of the chassis
    Central_Support_10-1629715078528.png

     

     

    8. Replace the defective drive

     

    3. Remove the screws securing the dummy drive to the hard drive carrier.
    4. Remove the defective drive from the hard drive carrier and place the hard drive carrier on a flat surface.

    Central_Support_11-1629715117502.png

     

    5. Slide a new hard drive into the hard drive carrier with the printed circuit board side facing down.
    6. Align the mounting holes in both, the hard drive carrier and the hard drive.
    7. Secure the hard drive to the hard drive carrier using six screws

     

    9. Insert the replacement drive

     

    To install a hard drive into the bay:


    8. Push against the upper part of the hard drive handle.
    9. Push the hard drive horizontally into the hard drive bay, orienting the hard drive so that the release button is on the right.
    10. Push the hard drive carrier into the bay until the handle retracts and the hard drive clicks into the locked position.

    Central_Support_12-1629715188730.png

     

     

    10. Rebuilding the RAID

     

    After removing the failed drive and physically installing the replacement, the newly inserted drive should automatically go into "Rebuild"
    The rebuild process may take several hours to finish.
    Rebuild times will vary based on several factors


    • Number of drives in the array
    • Amount of data to be rebuilt
    • iSCSI traffic to and from the DIP

    Central_Support_13-1629715241503.png

     

    Two drives fail

     

    When working with a DIP that is configured for RAID 5 and that has suffered a two drive failure, all data that was contained on the virtual drive will be lost.

    The initial recovery steps for a two drive failure are similar to that of a one drive failure, but additional steps are required in order to make the DIP functional again.

    The controller's Virtual Drive is also in a failed state.
    This means the DIP's D:\is no longer present, and all iSCSI VHD’s are gone.

    Central_Support_14-1629715279701.png

     

    Unconfigured Drives

     

    Mark all failed drives as missing as shown previously. This should move them from the Virtual Drive's "Drive Group" to "Unconfigured Devices"
    • Use the "Start Locating" sub menu
    • Physically remove the failed drives
    • Install replacement drives
    • Restart the DIP

    Central_Support_15-1629715313819.png

     

    NOTE: Prior to the next step, power off and power the appliance back on. The LSI controller card does not contain a battery backup, and for this reason, keeps the last known good configuration in it's running memory. In some cases this can cause "false" restore states accentuated by windows file pointers. Recycling power ensures accurate readings.
    After the power has recycled, you will see the replacement drives "Unconfigured Good"

     

    Replace missing drives

     

    To add the new drives to the existing VD, right click each drive and select the "Replace Missing Drive" option

    Central_Support_16-1629715352978.png

    Once selected, you will be asked for drive group assignment. The DIP should only have one drive group; select "OK"

    Central_Support_17-1629715389631.png

     

    11. Make Drives online

     

    • After the replacement drives have been added to the Virtual Drive, right click each drive and select "Mark Drive Online“
    • After each drive has been selected, you will be prompted to confirm the addition
    • Check "Confirm" and select "Yes“
    • If you receive "Alerts while adding the drives, select "Dismiss"
    Central_Support_18-1629715424668.png

     

    12. Add the RAID back to the system

     

    While the controller card Virtual Drive is now repaired, it is currently recognized by Windows as an "un-initialized" drive. To add the RAID array back to the system as the D:\
    • Open the Windows "Server Manager"
    • Select "File and Storage Services"
    • Select "Disks"

    Central_Support_19-1629715480340.png

     

    13. Initialize as GPT Disk

     

    You should see in the "Disks" menu that the RAID Array is present but the partition is "Unknown“
    Right click the drive and select "Initialize". You will be prompted to confirm it as a GPT disk, select "Yes"

    Central_Support_20-1629715520931.png

     

     

    14. Create New Volume

    The state of the drive should change to "GPT". Right click the drive and select "New Volume..." in order to format and assign the volume a drive letter

    Central_Support_21-1629715575614.png

     

    After selecting "New Volume..." you will be presented with the "New Volume Wizard". On the introduction page, select "Next"

    Central_Support_22-1629715601588.png

     

    Select Disk

    On the "Server and Disk" menu, highlight the newly initialized disk and the select "Next"

    Central_Support_23-1629715654144.png

     

    Assign all storage

    On the "Size" menu, insure that the total available space is selected. Select "Next"

    Central_Support_24-1629715695842.png

     

    Assign a drive letter

    On the "Drive Letter and Folder" menu, assign the appropriate drive letter. Select "Next"

    Central_Support_25-1629715730599.png

     

    Format NTFS

    On the "File Systems Settings" leave the default settings of "NTFS" and "Default". Select "Next".

    Central_Support_26-1629715764565.png

     

    Confirm Volume creation

    The "Confirmation" menu is a summary of the option you selected. Select "Create"

    Central_Support_27-1629715820216.png

     

    Volume creation in progress

    The "Results" menu will show the "Volume" creation in progress.
    When the process is finished, close the wizard menu A "D:\" drive should ne be present in "My Computer"

    Central_Support_28-1629715858040.png

     

    15. Start the iSCSI Target configuration and Create a new iSCSI target, VHD, LUN

     

    Now that the "Drive" is recognized, the iSCSI VHD’s need to be recreated and assigned to the iSCSI Software Target.

    From within the "Server Manager" menu, select the "iSCSI" menu

    Central_Support_29-1629715898419.png

    In the iSCSI Virtual Disks menu it will show that "There are no iSCSI virtual disks".
    • Select the "To create....." hyperlink

    Central_Support_30-1629715942869.png

     

    This will open the "New iSCSI Virtual Disk Wizard".
    Either a "Volume" can be specified or a path can be typed. If typing a specific path: D:\LUNID.VHD
    LUN ID will be incremental based on the LUN created: LUN0 , LUN1 etc.
    Select "Next"

    Central_Support_31-1629715982648.png

     

    The "iSCSI Virtual Disk Name" menu will ask for a VHD name.
    Enter the Lun name, example "LUN1". Select "Next"

    Central_Support_32-1629716014064.png

     

    Size matters! The "iSCSI Virtual Disk Size" menu will require the size to be entered:

    • LUNs should be sized at between 1.8 and 1.9 TB
    • Select "Fixed Size"
    • Select "Next"
    Central_Support_33-1629716048018.png

     

    The "iSCSI Target" menu allows you to select the "iSCSI Target" that the VHD will be assigned to.

    Select "TGO" and then select "Next".

    Central_Support_34-1629716095364.png

     

    The "Confirmation" menu is a summary of the option you selected.
    Select "Create“

    Central_Support_35-1629716139724.png

     

    Repeat VHD and LUN creation

    The iSCSI VHD creation must be repeated until all available disk space of the D:\ has been allocated to the iSCSI Target. As you create VHDs, they will appear in the "Virtual Disks" menu.

    Central_Support_36-1629716174067.png

     

    Format the LUN’s

    After all VHDs (LUNs) have been created, the iSCSI target will need to be rescanned by VRM in BVMS.

    After the target has successfully updated, the LUNs will need to be formatted in "VRM format"

    Central_Support_37-1629716213444.png

     

    After formatting is complete, utilize the VRM Monitor Page to verify that all video devices have received new spans and are recording.

    Version history
    Revision #:
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    Last update:
    ‎08-23-2021 12:58 PM
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