The main reason is we have a limited about of disk to allocate and we will have a hard time saying X gigs go to /opt, Y gigs will be needed for /home, etc.
>>> On Thu, Aug 14, 2008 at 10:49 AM, in message <[EMAIL PROTECTED]>, David Boyes <[EMAIL PROTECTED]> wrote: >> Thats the issue we are trying to avoid if possible. If we could put > /, >> /opt, /usr, /lib, etc. etc. into LVM, we won't have to guestimate how >> much disk we'll need from the outset. We could grow as needed. > > I guess my first question is "why is / expanding at all?" If you're > getting a need for expanding root filesystems, something else is wrong. > The case for the other filesystems is fine; I'd agree on putting them in > LVM in a second. > >> I keep reading where it's not a good idea to put / in LVM, but can you > (or >> someone else) define actually why it's not a good idea? > > It's not a good idea because: > > 1) It encourages poor management of file placement by vendors and users. > > 2) It complicates recovery of a failed system by requiring you to > restore more than one disk to ensure consistent state. > > 3) It complicates cloning and replication of system images in that if > you use a template VG structure, it is difficult to be able to import a > VG for repair in another system if all the VG names are the same (ie, > you can't easily fix it if all your VGs are called "system_vg", > including the one in your recovery system). > > 4) It complicates getting a failed system back on the network so that > you can fix whatever else happened. > > > You don't see a lot of these problems in the Intel space because the > network is less critical to Intel systems, and you can't really share > access to resources between machines easily. As you migrate your Intel > systems to virtual machines, the same problems start cropping up there > too. > > ---------------------------------------------------------------------- > 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 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
