Slightly different details here than on the IBMVM list. I hope this is relevant and accurate.
Ahhh... The SAN thingie. We're all having fun in the SAN box now, aren't we? It's more like a network, so CP ATTACH/DETACH doesn't apply. That is, you have FCP adapters defined (much like dedicated OSAs) and you leave them there. No need that I can see for taking them away. You will find this "network" to be much faster than what you're used to (TCP/IP). SAN is more like a brand X set of channels, and is rated faster than FICON, so any backups you do will be a lot quicker than the networked backups you are accustomed to so far. It will be device access (writing directly to tape) so the fabric will need controls. Make friends with your storage team. The tape drives are out there in the fabric. You need z9 hardware for N-port V12N. You also need z/VM 5.2. Without both, all SAN-connected guests look like the same client host. -- R; Tom Duerbusch <[EMAIL PROTECTED]> Sent by: Linux on 390 Port <[email protected]> 10/02/2006 03:55 PM Please respond to Linux on 390 Port <[email protected]> From Tom Duerbusch <[EMAIL PROTECTED]> To [email protected] cc Subject zLinux and IBM 3592-E05 tape drives We are thinking about buying some IBM 3592-E05 tape drives for the Open System group (well, actually, it's comming out of their budget), and we will put them in our, yet to be purchased IBM 3494 robotics unit. The tape drives will be dedicated to a FC SAN thingie. Apparently, we can attach the mainframe to the FC SAN thingie, using FCP connections. Then, zLinux can have access to them. As FCP tape drives are not known to VM. And I have some 20-30 Linux images running under VM, what is the procedure to attach/detach these tape drives to each image? Or is it something stupid, like I have to dedicate the drives to one machine and then backup over vswitch from one machine to another to the tape drives? (I say stupid, as backing up over "communications" usually takes more resources than backing up over hardware....directly to the drives.) Tom Duerbusch THD Consulting ---------------------------------------------------------------------- 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
