How to troubleshoot BoostFS Mount Offline issues for both Windows and Linux platforms

In General, BoostFS runs in process level and stays running in the background while Boostfs Mount is mapped on both windows and linux platforms.

In certain cases, due to an unexpected issue, the process may get killed.

If the customer has not already recovered from the situation described above and needs assistance in restoring connectivity. Review the last command used in the following logs to manually start the process. 
 

Linux: /opt/emc/boostfs/log/boostfs_command.log

Windows : C:/BoostFS/Log/boostfs_commands.log

Logs to Collect:

1.Boostfs logs from directory path. 

/opt/emc/boostfs/log/ for Linux

C:/BoostFS/Log/ for Windows

2. Support Bundle from the Data Domain where the BoostFS mounts are associated with.

3. Application Logs around the time of the failure when the mount would have gone offline.

4, Core Files related to the incident if the core dump-logging facility is enabled. If not enabled, please refer to steps below that can be used to configure the setting.

Core Files Generally are located in.

/opt/emc/boostfs or /var/lib/systemd/coredump for Linux

C:\BoostFS directory for Windows installs

For Linux:

Check the limits of ulimit for core using the following:
 

#ulimit -c

Ensure the value isn’t zero; if it returns 0 bytes, allocate space by setting size to unlimited or negotiate an appropriate size with the the customer.

In general core files for BoostFS are 2 GB or less and so setting it to unlimited should not hurt but please check with a customer.

#ulimit -c unlimited

For Windows:

1. Using `regedit` on the Windows BoostFS client system, look for the following Registry entry:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\Windows Error Reporting\LocalDumps\boostfs.exe

2. The above Registry entry would have default parameters like the following:

DumpCount = 1

DumpFolder = "C:\BoostFS\

DumpType = 2

3. In the above BoostFS registry parameters, modify the value of "DumpCount" to a value of 10 (using Base as Decimal)

Doing this would prevent any BoostFS dump from overwriting previous dumps and there can be a maximum 10 BoostFS dump files created under folder "C:\BoostFS."