> "Do not include the root file system in the LVM structure because, if for any > reason the LVM > fails, the operating system will not boot. " - Set up Linux on IBM System z > for Production
People often give non-unique names to volume groups. For example if you name the VG root resides on "RootVG" and try to access it (via CP LINK) from another Linux system that also has root on "RootVG" then you can't put the VG online. We once got around this by using UUIDs for VGs, this ensures that any root FS is accessible from other Linuxes that can be used as emergency repair machines. > Are there other reasoning's to not do so? These are the types of things that > would really be helpful. One other reason I know about is that in the general case you cannot boot from an LVM root on multiple minidisks. This is a ZIPL limitation. Previous discussion is here: http://www.mail-archive.com/linux-390%40vm.marist.edu/msg62491.html This limits the size of the root partition to whatever is the largest single virtual disk you have available. HTH, Tomas Tomas Pavelka CA Technologies Sr Software Engineer CA CZ, s.r.o V Parku 12, 148 00 Praha Czech Republic Office: +25996 | [email protected] Id. Císlo 25694073, z obchodního rejstříku, vedeného Městským soudem v Praze, oddíl C, vložka 61808 / Id. No. 25694073, registered in the Commercial Register maintained by the Municipal Court in Praque, Section C, File 61808 ---------------------------------------------------------------------- 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 more information on Linux on System z, visit http://wiki.linuxvm.org/
