On Thu, Dec 15, 2005 at 05:07:12PM -0500, Mark Post wrote: > It should be doable, but going from an LVM-1 system to an LVM-2 system has > sometimes caused issues for people in the Intel world at least. Make sure > you have a good backup.
Good tip. Although I've done this a few times, it's not (to my memory) been between LVM-1 and LVM-2. > A lot of the LVM information is written as metadata on the physical volumes > (PVs) themselves. This is true; the rest is configuration information in your filesystem (usually under /etc/lvm/). The vgexport/vgimport process takes care of this for you. Files under /etc/lvm keep track of which VGs and LVs are expected to be present when LVM starts -- if you simply remove the DASDs, you're likely to get errors when you next run a vgscan/vgchange. vgexport also changes some of the metadata on the volumes so that if somebody happens to do a vgscan and/or vgchange before you've detached the DASD, you won't get the VG unexpectedly reappearing on your system. These changes are undone by the vgimport on the destination system. Cheers, Vic Cross ---------------------------------------------------------------------- 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
