Hi all, Thank you for your replies. I think it is clear now that the Sun 3510 FC 'JBOD' box cannot work with zseries FCP (the JBOD version has no controller so it is just an FC-AL string). A standard 3510 may work. Looking at other posts I see that some of the Clariion devices do work although not officially supported by EMC.
I am still interested to hear of any details of specific configurations of 'mid-range' disk systems which are working successfully with zFCP, even if not officially supported i.e. not EMC Symmetrix, IBM DS6000/DS8000, Sun Storagetek 9900 or other system which supports zseries native FICON and CKD disks in addition to FCP. (Reply off-list in confidence if you wish). The a development shop which has lots of different platforms and OS versions/releases for testing purposes. The usual zseries reilience requirements do not apply and of course we have pukka zseries DASD for the important stuff. Keith ________________________________ From: Raymond Higgs <[email protected]> To: [email protected] Sent: Thu, 3 December, 2009 22:56:57 Subject: Re: Using non-IBM SCSI disks with zLinux and zVM Linux on 390 Port <[email protected]> wrote on 12/02/2009 08:57:45 AM: > Keith Gooding <[email protected]> > Sent by: Linux on 390 Port <[email protected]> > > 12/02/2009 08:57 AM > > Please respond to > Linux on 390 Port <[email protected]> > > To > > [email protected] > > cc > > Subject > > Using non-IBM SCSI disks with zLinux and zVM > > Hi ... Does anyone have any experience of using FCP-attached non-IBM > disks with zseries linux and/or VM ?. > > The IBM documentation I can find says that certain IBM and Hitachi > disks are supported. Other manufacturers have disks systems > specifically designed for zseries, which tend to be expensive. > Presentations on zseries SCSI over FCP often say that 'other disks > may work but are not supported' . I would like to try out SCSI over > FCP point-to-point with some some disks which have been used with a > Sun unix server - specifically Sun Storedge 3510FC in a JBOD > configuration. When I activate the channel there is a 'sequence > time-out'. I would like to know if anyone has used 'unsupported' > SCSI disks in this way. The zseries machine is for development use > only and I am not concerned with the usual zseries resilience issues. > > keith > > > > > ---------------------------------------------------------------------- > 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 Keith, We haven't tested Sun Storedge 3510 FC, in fact I've never seen one. Anyway, I'd double check these: Make sure that the optics and fibre are consistent. Either all long wave, or all short wave. No mixing. Make sure that the channel is really connected to the sun storage. I know, I know it sounds obvious, but when fibres disappear under the floor, or go through patch panels, it can be confusing. Make sure that the pchid that you think is fcp is really defined as fcp in the IOCDS, and not ficon. Use the "analyze link error statistics block" panel on the SE to see if you're getting a bunch of bit errors. There are 2 flavors of point-to-point out there in the wild. We support the official point-to-point topology defined in fc-fs. We do not support that special case of arbitrated loop where there are 2 nl_ports. There isn't any firmware to prevent you from using unsupported storage. We don't usually hear about unsupported storage configs., but the little bit that we have heard is mostly EMC Clariion. Regards, Ray Higgs System z FCP Development Bld. 706, B24 2455 South Road Poughkeepsie, NY 12601 (845) 435-8666, T/L 295-8666 [email protected] ---------------------------------------------------------------------- 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
