This would be called multipathing. -Cameron -----Original Message----- From: Linux on 390 Port [mailto:[EMAIL PROTECTED] Behalf Of Wiggins, Mark Sent: Wednesday, December 22, 2004 07:37 To: [email protected] Subject: FCP question
I've been reading through a lot of documentation and "Googled" the heck out of this thing but have yet to run across what I want to do so I'm questioning whether or not it's feasible. The question really revolves around redundancy. In most references to connecting an FCP device to Linux (we're running SuSE SLES8 on z/VM 5.1), they talk about connecting 1 FCP channel on VM, to 1 WWPN on a switch to multiple LUN's on the shark. In other words, something like this On VM ATTACH a210-a211 TO LINUX1 (Documentation suggested a QDIO pair of addresses) On Linux rmmod zfcp modprobe qdio modprobe scsi_mod insmod zfcp loglevel=0 map="\ 0xa210 0x1:0x5005076300d08276 0x0:0x502f000000000000" modprobe sd_mod With the key word mentioned above, "REDUNDANCY", is it possible/feasible to do the following? On VM ATTACH a210-a211 TO LINUX1 ATTACH a310-a311 TO LINUX1 On Linux rmmod zfcp modprobe qdio modprobe scsi_mod insmod zfcp loglevel=0 map="\ 0xa210 0x1:0x5005076300d08276 0x0:0x502f000000000000;\ 0xa210 0x2:0x5005076300c28276 0x0:0x502f000000000000;\ 0xa310 0x3:0x5005076300d08276 0x0:0x502f000000000000;\ 0xa310 0x4:0x5005076300c28276 0x0:0x502f000000000000" modprobe sd_mod Notice the 2 different WWPN's for the 2 different addresses (a210 and a310). Am I completely missing something here??? Mark Wiggins University of Connecticut Operating Systems Programmer 860-486-2792 ---------------------------------------------------------------------- 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 [INFO] -- Access Manager: This transmission may contain information that is privileged, confidential and/or exempt from disclosure under applicable law. If you are not the intended recipient, you are hereby notified that any disclosure, copying, distribution, or use of the information contained herein (including any reliance thereon) is STRICTLY PROHIBITED. If you received this transmission in error, please immediately contact the sender and destroy the material in its entirety, whether in electronic or hard copy format. Thank you. A2 ---------------------------------------------------------------------- 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
