El 13/12/11 20:43, Mark Post escribió: >>>> On 12/13/2011 at 02:22 PM, "Shumate, Scott" <scshum...@bbandt.com> wrote: >> Im trying to remove a LUN from an adapter on my RHEL5 server. It fails >> with this error -bash: echo: write error: No such device or address >> >> >> Any ideas what I'm doing wrong? > You first have to tell the SCSI layer to delete the LUN from use. Underneath > the directory you were in, you'll see a subdirectory of "host?" where ? is > the host number of the HBA. Under that will be one or more rport* > directories. Under those will be one or more target* directories, and under > those will be one or more directories that look like the numbers at the end > of the lszfcp -D display: > 0:0:0:1 > 0:0:0:2 > 2:0:0:2 > etc. > > In those directories, you'll see a pseudo file named "delete". You have to > echo a 1 into that before trying to do the echo to unit_remove. SUSE has > zfcp_disk_configure, which we wrote for our customers. I don't know if Red > Hat has a tool to figure all that out for you or not. Check the contents of > the s390-tools RPM (I think Red Hat renames that though) and see if something > similar is there. > > > Mark Post > Hello Scott,
Mark gave good advise here for manual actions required to remove a block device . For a complete description of SCSI block devices management in RHEL 5 you can find the "Online Storage Reconfiguration Guide" available online or for downloading at: http://docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/5/pdf/Online_Storage_Reconfiguration_Guide/Red_Hat_Enterprise_Linux-5-Online_Storage_Reconfiguration_Guide-en-US.pdf The chapter that describes block devices removal is online at: http://docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/5/html-single/Online_Storage_Reconfiguration_Guide/index.html#removing_devices It's also handy for LUN automated detection/removal the utility rescan-scsi-bus.sh . Description is in the same manual, at: http://docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/5/html-single/Online_Storage_Reconfiguration_Guide/index.html#rescan-scsi-bus In case you use RHEL 6, the very same information is located at chapter 24 of the more comprehensive "Storage Administration Guide": http://docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/6/html/Storage_Administration_Guide/index.html BTW, s390-tools is called s390utils in RHEL. Hope this helps. -- Rafael Godínez Pérez Red Hat - Senior Solution Architect EMEA RHCE, RHCVA, RHCDS Tel: +34 91 414 8800 - Ext. 68815 Mo: +34 600 418 002 Dirección Comercial: C/Jose Bardasano Baos, 9, Edif. Gorbea 3, Planta 3ºD, 28016 Madrid, Spain Dirección Registrada: Red Hat S.L., C/ Velazquez 63, Madrid 28001, Spain Inscrita en el Reg. Mercantil de Madrid – C.I.F. B82657941 ---------------------------------------------------------------------- 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/
