Thanks Neale: Victor Echavarry System Programmer, EVERTEC LLC
-----Original Message----- From: Linux on 390 Port [mailto:LINUX-390@VM.MARIST.EDU] On Behalf Of Neale Ferguson Sent: Wednesday, March 19, 2014 9:36 AM To: LINUX-390@VM.MARIST.EDU Subject: Re: 2014-01-08 Linux on System z - Kernel 3.12 related updates on developerWorks From the device driver manual: (The security warning is especially important) The zdsfs file system translates the z/OS data sets, which are stored on the DASDs in records of arbitrary or even variable size, into Linux semantics. Through the zdsfs file system, applications on Linux can read z/OS physical sequential data sets (PS) and partitioned data sets (PDS) on the DASD. In the Linux file system, physical sequential data sets are represented as files. Partitioned data sets are represented as directories, which contain the PDS members as files. Other z/OS data set formats, such as extended format data sets or VSAM data sets, are not supported. zdsfs is optimized for sequential read access. Attention: - To avoid data inconsistencies, set the DASDs offline in z/OS before you mount them in Linux. - Through the zdsfs file system, the whole DASDs are accessible to Linux, but the access is not controlled by z/OS auditing mechanisms. To avoid security problems, you might want to dedicate the z/OS DASDs only for providing data for Linux. Per default, only the Linux user who mounts the zdsfs file system has access to it. ---------------------------------------------------------------------- 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/ WARNING: This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please delete it immediately. Please note that any views or opinions presented in this email are solely those of the author and do not necessarily represent those of EVERTEC, Inc. or its affiliates. Finally, the integrity and security of this message cannot be guaranteed on the Internet, and as such EVERTEC, Inc. and its affiliates accept no liability for any damage caused by any virus transmitted by this email. ---------------------------------------------------------------------- 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/
