Copying the SAN Volume Controller software upgrade files using PuTTY scp

PuTTY scp (pscp) provides a file transfer application for secure shell (SSH) to copy files either between two directories on the configuration node or between the configuration node and another host.

To use the pscp application, you must have the appropriate permissions on the source and destination directories on your respective hosts.

The pscp application is available when you install an SSH client on your host system. You can access the pscp application through a Microsoft® Windows® command prompt.

Perform the following steps to use the pscp application:

Start a PuTTY session.
Configure your PuTTY session to access your SAN Volume Controller cluster.
Save your PuTTY configuration session. For example, you can name your saved session SVCPUTTY.
Open a command prompt.
Issue the following command to set the path environment variable to include the PuTTY directory:
```
set path=C:\Program Files\putty;%path%
```
where Program Files is the directory where PuTTY is installed.
Issue the following command to copy the package onto the node where the CLI runs:
```
pscp -load saved_putty_configuration
directory_software_upgrade_files/software_upgrade_file_name
admin@cluster_ip_address:/home/admin/upgrade
```
where saved_putty_configuration is the name of the PuTTY configuration session, directory_software_upgrade_files is the location of the software upgrade files, software_upgrade_file_name is the name of the software upgrade file, and cluster_ip_address is an IP address of your cluster.

If there is insufficient space to store the software upgrade file on the cluster, the copy process fails. Perform the following steps:
1. Use pscp to copy data that you want to preserve from the /dumps directory. For example, issue the following command to copy all error logs from the cluster to the IBM® System Storage® Productivity Center or the master console:
```
pscp -unsafe -load saved_putty_configuration
admin@cluster_ip_address:/dumps/elogs/*
your_preferred_directory
```
  where saved_putty_configuration is the name of the PuTTY configuration session, cluster_ip_address is the IP address of your cluster, and your_preferred_directory is the directory where you want to transfer the error logs.
2. Issue the svctask cleardumps command to free space on the cluster:
```
svctask cleardumps -prefix /dumps
```
3. Then repeat step 6.