CA's VMBackup HiDRO does everything except Linux file-level backups. We use it here to backup CMS minidisks, SFS, and full DASD images. As a bonus, it has a standalone module for bare metal DR restores. It will backup and restore whole Linux volumes but as stated before, the Linux instance better be shut down for the duration of the backup.
For Linux file systems we use FDR/Upstream, taking advantage of the z/OS infrastructure and proven tape management. The client software is easy to install and manage, and their tech support has been superior. Upstream doesn't look like a possibility for you now but can you piggy-back on some existing open systems backup facility (Netbackup, etc) that has an agent for zLinux? Depending on business requirements, you can perhaps do without the file level backups, but they are definitely nice to have since they don't require shutting down the Linux instance. Ray Mrohs U.S. Dept. of Justice
