Connectrix B-Series: Flash Filling When Using Inline SSH Command to Pull Supportsave Logs

Summary: A potential issue when using inline SSH to collect a supportsave can overfill the file system.

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Symptoms

Flash overfilling when the inline command is used to generate the supportsave logs.

Cause

Is it technically possible to use the following methods to collect a supportsave and is this recommended?

  • Use an inline SSH command to collect a supportsave by the following:
ssh admin@xx..xx.xx.xx supportsave -u user_name -h host_ip -d remote_dir -t timeout -l protocol -b 22 -n
  • Use Plink (a windows tool to automate SSH connections) to collect a supportsave by the following:
C:\>plink -v -batch -l admin xx.xx.xx.xx -pw password "supportsave -nc"

Resolution

It is not recommended to use an inline SSH command to collect the supportsave. 

For example:
If the SSH connection is lost or interrupted during the supportsave collection, then a SIGPIPE storm can occur where many SIGPIPE signals are triggered in a short period of time. This can lead to a rapid accumulation of logging, potentially causing disk space exhaustion (reaching 100%) which disrupts operations.

Affected Products

Connectrix B-Series Hardware
Article Properties
Article Number: 000306301
Article Type: Solution
Last Modified: 30 Apr 2025
Version:  1
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