>>> On 3/20/2012 at 05:50 PM, Grzegorz Powiedziuk <gpowiedz...@gmail.com> >>> wrote: -snip- > I decided to (for now) use EDEVICE attached to linux guest (without > minidisks).
But EDEVs look like mindisks to the guest. > Sles11 instalator, can see it but it is unable to format it (!?). Format > exits with error code 1. FBA disks don't require formatting, and dasdfmt is coded to exit with an error if you try. > It doesn't allow me create any partitions. My hands are tied, don't know > what to do. The dasd_fba_mod driver automagically creates one partition that spans the entire minidisk. That's all you get. > Disk is fine I guess. I was able to format it with cpfmtxa and with cms > format command. > > I wonder if sles instalator is trying to use fdasd instead of fdisk... Probably not, since neither one will work with FBA disks. > Do you know what I am doing wrong? > > Do I have to create a separate minidisk for each filesystem? I'd like to > avoid that... Yes, you would. That's the whole idea of EDEVs. You let z/VM manage the SCSI part, and Linux treats it just like VDISK, for example. I have an EDEV presented to one of my guests at Marist College as an FBA minidisk. It works just fine, but I'm not doing a whole lot of I/O against it either. If you can absorb the performance hit, it does make things a lot simpler to manage. On my test systems within SUSE, I don't have any EDEVs, just SCSI over FCP. That also works just fine, but I'm not dealing with tens or hundreds of guests, disaster recovery, etc. My recommendation would be to do the management where you have the deepest skills, whether that's z/VM or Linux (assuming performance is acceptable). Mark Post ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 ---------------------------------------------------------------------- For more information on Linux on System z, visit http://wiki.linuxvm.org/
