We examine new features and enhancements of the Linux 2.6 kernel. We demonstrate Linux device configuration using sysfs and udev and discuss running Linux servers under z/VM. Networking options available for Linux on IBM System z9 and zSeries are examined in detail. Configuration of FCP-attached SCSI disks and traditional ECKD storage is demonstrated.
valszinuleg kepes bar az ibm explicit nem irja ezt sehol ha ki tudod irtani a z/VM-et bukva mindenfele garanciat -ami egy 20-30 evre vasarolt eszkoznel lehet hogy hatrany-
mellesleg ahogy nezem csak s/390
meg mindig nem erted h miert nagy dolog az z/VM
szamodra a nativ futas akkor azt jelenti ez esetben h kihereled a mainframet es felhuzol ra egy linux kernelt. ez valoban jovobemutato megoldas szerintem palyazhatunk 2009 innovacios ujitasa GNU/Linux temakorben az IBMnel ha gondolod tovabbitom a megfelelo szakmai forumokra
ellenben ha megnezed h mind dolgozik az ibm manapsag:
http://en.wikipedia.org/wiki/IBM_System_z10
(most mar csak wikipediaval merek jonni)
The System z10 supports the following IBM operating systems: z/OS, z/VSE, z/VM, and z/TPF (and its immediate predecessor, TPF/ESA). Other operating systems available include Linux on System z, OpenSolaris for System z, UTS, and MUSIC/SP (at least in principle). Operating systems developed for x86 architectures (such as Windows and x86 versions of Linux) can be usable in the future according to the Mantissa Corporation with their z/VOS product.
es akkor az altalad linkelt oldal ha kicsit tovabbolvasol:
System z mainframes are capable of multiple levels of virtualization. In the first level of virtualization, a single machine can be divided into as many as 60 logical partitions (LPARs), and each LPAR is a separate virtual machine running a separate operating system (OS). LPARs are implemented in hardware using a feature called PR/SM which can (optionally, typically) dynamically adjust LPAR boundaries according to real-time demands. This hardware feature is always active in modern mainframes, even in the simplest configuration with a single LPAR spanning the entire machine.
However, most Linux on System z customers take advantage of an additional virtualization level, z/VM. This is a mainframe OS with a long history, and one of its main functions is a hypervisor, a provider and manager of virtual machines. Operating systems, such as Linux, that run within a z/VM virtual machine are called guests or images. z/VM virtualizes not only processors and memory but also mainframe (ESCON or FICON) disk storage, networking, cryptographic accelerators, and other mainframe resources.
z/VM operates inside an LPAR, like any other mainframe OS. This provides two levels of Linux virtualization: based on hardware, and based on a hardware-assisted hypervisor. Moreover, z/VM can also be a guest of z/VM, creating nested levels of virtualization at any number of levels deep. Nested virtualization has little extra overhead and is practical on mainframes.
tehat linux fut nativan de minek, ha most ettol boldog vagy elismerem, 2009 linux mainframe eve miutan a 2008 a linux desktope volt
mi johet meg?
--
.