Re: HP9000+LVM+Online

Tony Tyrwhitt-Drake (tonytd@ttyrwhit.demon.co.uk) wrote: : Hewlett Packard have now taken to shipping HP9000s with their LVM : (Logical Volume Manager) product. Online normally operates on raw disc, : that is unmounted disc unknown to unix. Does anyone know what the : benefits/problems are from allocating disc to Online from LVM? : Do you loose performance by having LVM 'between' Online and its raw disc? : With HPUX it is said that you 'have' to use LVM with v10...is this true? : ..does it matter?....does LVM cause Online any problems? : : ================================================================================ : Tony Tyrwhitt-Drake | We use Online with LVM. I don't know of any problems it causes (except for the extra effort when we trashed a disk which was only part of a logical volume.) Since we began using LVM with Online from the start I have no idea if there is a perfomance problem. As far a I can tell Online manages the Logical Volume in exactly the same way it would a physical volume.