Hi David, It's an excellent idea, you already have Bacula sitting there waiting to act as a backup server, you just need to get CMS to talk to it. You'd probably want to tell the CMS client if you are backing up files or a device (i.e. raw DASD) and use VMFPLCD for files, PIPE TRACKREAD for a device/raw dasd.
If you don't mind, send me what you've got so far and I'll take a look at it. If I do find that I can get it going I'll share my work with you when it's done. :) -Thanks David! -MC -----Original Message----- From: Linux on 390 Port [mailto:[EMAIL PROTECTED] On Behalf Of David Boyes Sent: Wednesday, June 18, 2008 11:36 AM To: [email protected] Subject: Re: DDR'ing 3390 DASD To Remote Location > What's the VM/CMS side written in? BAL? So far, REXX and some Pipes. The basic problem is to authenticate to the Bacula server and then feed it a fairly simple structured data stream. Bacula doesn't care what the contents are as long as the client understands what to do with it and the metadata Bacula expects is there (basically faking up a Unix fstat entry putting the images into a pseudofilesystem tree, eg /dasd/image/xxxxx). It's all TCP sockets, and other than the data transfer, it's all text line protocols. I had been going along the TRACKREAD/TRACKWRITE path to get the data when I shelved the work, but I suspect that it wouldn't be horrendously hard to also do file-level stuff if you could figure out a way to reliably encode the CMS file metadata in a transportable way (maybe use VMFPLCD to render the file transportable on store and then restore the same way? Seems clunky, but would work reliably. Dunno.) and detect the difference between a CMS minidisk and a "raw" disk. The basic line protocol stuff is documented in some detail on Bacula.org, and I suspect a better piper than I could easily do a better pipes-based implementation. Pipe-think still doesn't come easily to me. ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
