(Cross-posted on VMESA-L and LINUX-390) Hi Folks, I want to eliminate use of tapes in my weekly DR process. Currently we DDR numerous 3390 spindles to 3590 tape cartridges. I have set up a Linux server at our DR site with a ton of free disk space, but the question becomes what is the best method to get images of our DASD stored on it? I've modified our procedures to use DDR2CMS to create CMS files representing the 3390 DASD images, which are then FTP'd to the Linux server - but the process is VERY inefficient:
1. DDR2CMS produces RECFM=V files which are unsuitable for FTP (I've NEVER had any luck successfully FTP'ing RECFM=V files to a non-CMS environment and getting them back in the correct format later), so I have to COPYFILE (PACK the output from DDR2CMS. DDR2CMS takes around 47 minutes/spindle, and the COPYFILE takes around 38 minutes - the FTP only takes around 17 minutes! So we are really wasting nearly 90 minutes/spindle just prepping the data to be transmitted. 2. The output from DDR2CMS for a 3390-3 spindle may actually be LARGER than a 3390-3 spindle (even using COMPACT), so we need to use 3390-9 spindles as "work space", something I'm not fond of doing (as a general rule we don't use 3390-9's at this site, but I configured a string of them just for this purpose). There is a great tool on the VM download page called PIPEDDR which basically does what DDR2CMS does using PIPE TRACKREAD - and it can write the output to a TCPIP stage. This is exactly what I'm looking for, with ONE important difference - PIPEDDR only talks to a remote VM/CMS system running PIPEDDR to receive the output, I need to be able to PIPE the output to a remote Linux storage server. Can anyone recommend a nice client that can run on Linux and listen on a TCPIP port, accept some authorization credentials and host commands (i.e. MKDIR, CD to dir, etc.) and receive/write to disk a stream of data similar to what PIPEDDR might write to it's TCPIP stage? I could then skip creating the DDR2CMS file and COPYFILE (PACKing it, writing "indirectly" to the Linux server. I'd rather not reinvent the wheel if there's already something out there. :) PS: It would be sweet if there were just a way to mount a remote EXT3 filesystem somehow on CMS, but it looks like the only way to do this is with NFS, which is a problem because it is considered an "unsafe protocol". :( -Mike
