Bleah, I meant not like DASD, but like FCP attached SAN DISK. Time to go home now.
Marcy "This message may contain confidential and/or privileged information. If you are not the addressee or authorized to receive this for the addressee, you must not use, copy, disclose, or take any action based on this message or any information herein. If you have received this message in error, please advise the sender immediately by reply e-mail and delete this message. Thank you for your cooperation." -----Original Message----- From: The IBM z/VM Operating System [mailto:[email protected]] On Behalf Of Marcy Cortes Sent: Wednesday, May 20, 2009 4:18 PM To: [email protected] Subject: Re: [IBMVM] SCSI Devices You gen it just like DASD. Keep in mind you are not genning the drives themselves but subchannel in which things on the SAN can talk to your Linux server. So, a subchannel can and usually does have more than 1 thing out there. 64 IODEVICE per CHPID max is recommended in something I read :) See http://linuxvm.org/Present/SHARE111/S9259cs.pdf for an example IOCP statements. Marcy "This message may contain confidential and/or privileged information. If you are not the addressee or authorized to receive this for the addressee, you must not use, copy, disclose, or take any action based on this message or any information herein. If you have received this message in error, please advise the sender immediately by reply e-mail and delete this message. Thank you for your cooperation." -----Original Message----- From: The IBM z/VM Operating System [mailto:[email protected]] On Behalf Of Rick Troth Sent: Wednesday, May 20, 2009 3:56 PM To: [email protected] Subject: Re: [IBMVM] SCSI Devices VM supports SCSI disk now, but not SCSI tape. SCSI is SAN (FCP). The cards are FICON cards with FCP personality. In FCP mode, they act more like OSA cards. You can attach one or more (usually more) FCP subchannels to a guest. Maybe the guest will know what to do with them! But CP can use them too, so you can use one or more FCP subchannels to define an EDEV (emulated device) making a SAN-land disk look like a 9336 to VM. But no tape. -- R; <>< On Wed, 20 May 2009, Schuh, Richard wrote: > I just was asked by one of our h/w guys > if I knew how he should define a SCSI tape device in the IOCP. > Of course the answer was that there were no SCSI devices > supported on VM the last time I had anything to do with IOCPs > (some 20 years ago). If someone would either post a sample > or e-mail one to me, I would appreciate it. > > > Thanks, > Richard Schuh > > > >
