Procedures for upgrading multiple subracks during a WDM device upgrade

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Analysis:
Run the :swdl-rvrv-bdlist command to obtain the number of boards to be loaded. When the number of boards exceeds 70, divide the boards into batches and perform the package loading batch by batch. The number of boards in each batch of package loading should be less than 70.
Dividing methods:
1. The boards in the same subrack cannot be divided into two loading batches.
2. The number of boards in each batch cannot exceed 70.
3. Run the :swdl-add-excludebd:bid:0,0,0 command (only if the current NE version is OptiX OSN 6800 V100R004C04SPC800 or later) to isolate the boards except the first batch. Then run the :swdl-set-autoswdl:disable command to disable the automatic matching function on the NE.
4. For the first batch, perform a complete package loading upgrade.
5. Run the sftm-rtrv-state:swdl command to check the NE status. If MAIN_STATE and SUB_STATE of the NE are NORMAL, you can perform the package loading for the second batch.
6. Run the :swdl-del-excludebd:bid:0,0,0 command to de-isolate the boards on the second batch.
7. Perform the package loading on the second batch of boards until all the boards are upgraded.
8. After the upgrades on all batches are complete, you need to run the :swdl-set-autoswdl:enable command to enable the automatic matching function for package loading on the NE.
Root cause:
When the board data volume is too large or a loading operation is being performed, the package loading may exceed the timeout period, causing an upgrade failure.
Answer:
Please refer to the handling process.
Suggestion and conclusion:
None

Other related questions:
How can I upload the TE Desktop upgrade package on the SMC2.0?
To upload the TE Desktop upgrade package on the SMC2.0: Copy the TE Desktop installation package to the SMC2.0 installation directory and change the installation package name based on the following rules. The default directory path is .\Huawei Technologies Co., Ltd\SMC 2.0\Package\TE, and the operations need to be performed on directories corresponding to the active and standby nodes in the cluster. Windows operating system: TE_Desktop_for_win.zip MAC operating system: TE_Desktop_for_MAC.zip

Upgrade procedure for USG6000 in hot standby deployment
You are advised to upgrade the standby device first and disable the HRP function at the same time. Perform the operation according to the Upgrade Guide, which guides you through device upgrade in hot standby scenarios.

How to ensure sufficient storage space during a device upgrade
In the device storage space, there are often two system software files with file name extension *.cc, and only one of the two files is in use. You can delete the other idle system software file to release the storage space. Perform the following operations to delete the idle system software file: Run the display startup command to check the currently running system software file. Run the delete /unreserved filename command to delete the idle system software file. NOTE: When /unreserved is not specified in the delete command, run the reset recycle-bin command to permanently delete the idle system software file from the recycle bin. In this manner, you can release storage space.

How to upgrade an AC through BootROM
Perform the following steps to upgrade an AC through BootROM: 1. Prepare the system software package to be upgraded and enable the TFTP server on a PC. 2. Connect the PC to the AC using a console cable and start a terminal emulator (such as SecureCRT and HyperTerminal) on the PC. 3. Power off and restart the AC. When the system displays the message "Press Ctrl+B to enter BOOTROM menu ...", press Ctrl+B to enter the BootROM menu (default password: admin@huawei.com). 4. Enter the file system submenu and check whether there is sufficient space in the storage medium on the AC to store the new system software package. 5. Enter the Ethernet submenu, set TFTP parameters as prompted, and download the system software package from the TFTP server. 6. Enter the startup submenu and specify the uploaded system software package as the system software for the next startup. 7. Restart the AC. For more information, see the upgrade guide in the appropriate version of an AC model.

Do I need to upgrade the data.bin file independently when upgrading the U1900?
If the U1900 is upgraded to a version earlier than V200R003C20, you need to upgrade the data.bin file independently. If the U1900 is upgraded to a version later than V200R003C20 using the LMT, you do not need to upgrade the data.bin file because the LMT can upgrade the data automatically.

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