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FusionStorage OBS 7.0 Parts Replacement 05

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Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
Replacing an SSD Card Used as the Cache

Replacing an SSD Card Used as the Cache

NOTE:

This chapter applies to TaiShan 2280 12-slot nodes and TaiShan 5280 36-slot nodes.

SSD cards can be used as the cache of the storage system.

Impact on the System

Before replacing an SSD card on a storage node, you must power off the node. This will adversely affect the services running on the node.

Prerequisites

  • A spare SSD card is ready.
  • The faulty SSD card has been located.

Precautions

None

Tools and Materials

  • Flat-head screwdrivers
  • Phillips screwdrivers
  • ESD gloves
  • ESD wrist straps
  • ESD bags
  • Labels

Replacement Process

Replace an SSD card by following the process shown in Figure 10-1.

Figure 10-1 SSD card replacement process

Procedure

  1. Log in to the CLI of the primary management node as user dfvmanager, and run the sh /opt/dfv/oam/oam-p/client/bin/dswareTool.sh --op setServerStorageMode -ip Storage plane floating IP address of the faulty node -mode 1 command to switch to the maintenance mode. To run this command, you need to enter the user name and password of CLI super administrator account admin.
  2. Obtain the ESN of the faulty SSD card.

    Log in to the iBMC page on the storage node. Choose Information > System Info > Other Devices. In the More information area of the SSD card, SN indicates the ESN of the SSD card.

  3. Remove the storage node from its cabinet and remove the chassis cover. For details, see Basic Operations.
  4. Remove the PCIe card from the riser card.

    1. Lift the riser card tray, as shown in the following figures.
      Figure 10-2 Removing the riser card tray of a TaiShan 2280 node
      Figure 10-3 Removing the riser card tray of a TaiShan 5280 node
    2. Horizontally push the latch of the PCIe card outward to unlock it, as shown in step 1 in Figure 10-4.
      Figure 10-4 Removing the PCIe card from a riser card
    3. Rotate the PCIe card latch to open it, as shown in step 2 in Figure 10-4.
    4. Pull out the PCIe card, as shown in step 3 in Figure 10-4.

  5. Place the removed SSD card in an ESD bag.
  6. Take the spare SSD card out of its ESD bag.
  7. Install the PCIe card on the riser card.

    1. Insert the PCIe card into the PCIe slot, as shown in step 1 in Figure 10-5.
      Figure 10-5 Installing a PCIe card on the riser card
    2. Close the latch on the PCIe slot, as shown in step 2 in Figure 10-5.
    3. Install the riser card tray, as shown in the following figures.
      Figure 10-6 Installing the riser card tray of a TaiShan 2280 node
      Figure 10-7 Installing the riser card tray of a TaiShan 5280 node

  8. Install the chassis cover and put the storage node into the cabinet. For details, see Basic Operations.
  9. Add the spare SSD card into the storage pool.

    1. Obtain the ESN of the spare SSD card.

      Log in to the iBMC page on the storage node. Choose Information > System Info > Other Devices. In the More information area of the SSD card, SN indicates the ESN of the SSD card.

    2. Log in to the CLI of the primary management node as user dfvmanager, and run the following command to obtain the storage pool ID. To run this command, you need to enter the user name and password of CLI super administrator account admin.

      sh /opt/dfv/oam/oam-p/client/bin/dswareTool.sh --op queryStoragePool

      Information about all storage pools is displayed in the command output. poolId in the leftmost column displays IDs of all storage pools.

      [dfvmanager@node0101 ~]$ sh /opt/dfv/oam/oam-p/client/bin/dswareTool.sh --op queryStoragePool
      [Thu Dec 20 09:44:35 CST 2018] DswareTool operation start.
      Enter User Name:admin
      Enter Password :
      Operation finish successfully. Result Code:0
      Dec 20, 2018 9:44:44 AM com.huawei.dfv.persistent.oam.client.cmd.QueryStoragePool handleSuccessResult
      INFO:
      poolId poolName totalCapacity phy(MB) usedCapacity phy(MB) freeCapacity logic(MB) thinRate thinThreshold azProperty protectMode routingMode slowIoSwitch replicationFactor poolGroupName poolGroupId
      --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
      0 pool_sata_ec 130351795 449696 86601399 0 70 inner ec online null 0 default 0
      
      When there is no dsware client or failed to query storage pool capacity, the totalCapacity/usedCapacity will be set as 0.
      [Thu Dec 20 09:44:45 CST 2018] DswareTool operation end.
    3. Run the sh /opt/dfv/oam/oam-p/client/bin/dswareTool.sh --op queryStorageNodeInfo -id poolId command to query the ID of the storage pool to which the faulty SSD card belongs. To run this command, you need to enter the user name and password of CLI super administrator account admin.
      If cacheInfo contains the ESN of the faulty SSD card, poolId in the command is the ID of the storage pool to which the faulty SSD card belongs.
      [dfvmanager@node0101 ~]$ sh /opt/dfv/oam/oam-p/client/bin/dswareTool.sh --op queryStorageNodeInfo -id 0
      [Wed Dec 19 11:36:38 CST  2018] DswareTool operation start.
      Enter User Name:admin
      Enter Password  :
      Operation finish successfully. Result Code:0
      The result as  follow:
      nodeMgrIp:8.44.124.6 poolId:0 nodeType:0 rack:2  subRack:null
      diskInfo:
      diskSn:K4KDYJRB diskType:5 diskSize:3726 diskUse:1  diskStatus:0 diskSlot:0
      diskSn:K4KDL7JB diskType:5 diskSize:3726 diskUse:1  diskStatus:0 diskSlot:1
      diskSn:K3GEU03B diskType:5 diskSize:3726 diskUse:1  diskStatus:0 diskSlot:2
      diskSn:K4J7KZRB diskType:5 diskSize:3726 diskUse:1  diskStatus:0 diskSlot:6
      diskSn:K4KEBS2B diskType:5 diskSize:3726 diskUse:1  diskStatus:0 diskSlot:7
      diskSn:K4KDL46B diskType:5 diskSize:3726 diskUse:1  diskStatus:0 diskSlot:8
      diskSn:K4JK3K1B diskType:5 diskSize:3726 diskUse:1  diskStatus:0 diskSlot:12
      diskSn:K4J7TX2B diskType:5 diskSize:3726 diskUse:1  diskStatus:0 diskSlot:13
      diskSn:K4J7X04B diskType:5 diskSize:3726 diskUse:1  diskStatus:0 diskSlot:14
      diskSn:K4JK3JJB diskType:5 diskSize:3726 diskUse:1  diskStatus:0 diskSlot:18
      diskSn:K4J0DZBB diskType:5 diskSize:3726 diskUse:1  diskStatus:0 diskSlot:19
      diskSn:K4J7NBNB diskType:5 diskSize:3726 diskUse:1  diskStatus:0 diskSlot:20
      cacheInfo:
      cacheEsn:031YSVFSJ7000600 cacheType:3  cacheSize:1600 usedSize:1596 cacheStatus:3
      cacheEsn:031YSVFSJ6000940 cacheType:3  cacheSize:1600 usedSize:1596 cacheStatus:3
      ......
    4. Run the following command to add the spare SSD card into the storage pool. To run this command, you need to enter the user name and password of CLI super administrator account admin.

      sh /opt/dfv/oam/oam-p/client/bin/dswareTool.sh --op forceReplaceSSD -id ID of the storage pool to which the faulty SSD card belongs -oldEsn ESN of the faulty SSD card -newEsn ESN of the spare SSD card -nodeMgrIp Storage plane floating IP address of the faulty node -type cache -ignoreMediaFault true

  10. Log in to the CLI of the primary management node as user dfvmanager, and run the sh /opt/dfv/oam/oam-p/client/bin/dswareTool.sh --op setServerStorageMode -ip Storage plane floating IP address of the faulty node -mode 0 command to switch to the normal mode. To run this command, you need to enter the user name and password of CLI super administrator account admin.
  11. Check the system status.

    On SmartKit, choose Home > Storage > Routine Maintenance > More > Inspection and check the system status.
    • If all inspection items pass the inspection, the inspection is successful.
    • If some inspection items fail, the inspection fails. Rectify the faults by taking recommended actions in the inspection reports. Perform inspection again after fault rectification. If the inspection still fails, contact Huawei technical support.

    For details, see the FusionStorage OBS Administrator Guide.

Follow-up Procedure

Label the replaced SSD card to facilitate subsequent operations.

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Updated: 2019-07-05

Document ID: EDOC1100051325

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