All true, but providing there is still space on the PVs (allocated to the VG in which the LV resides) then the LV can still be expanded on those PVs. If you intend to use stripping then you must plan ahead, and perhaps be careful about how many LVs you mix within the same VG. Or put another way always allow room for expansion, perhaps by moving several smaller LV off to another VG in order to expand the larger LV.
Another point to be considered is that if the PVs are DASD in a Shark (or similar) then there is already the ability to use RAID (SCSI) in hardware, thus the expected advantages of LVM stripping are vastly reduced. Remember that the 3390-x are just emulated, try to use the features of the DASD subsystem (Shark) for performance and reliability, and LVM for space management. Ciao Mark -----Original Message----- From: Linux on 390 Port [mailto:LINUX-390@;VM.MARIST.EDU]On Behalf Of Post, Mark K Sent: 17 October 2002 16:31 To: [EMAIL PROTECTED] Subject: Re: striped LVM non-extensible Phil, >From the LVM Howto section 12.3: "We will not use striping because it is not currently possible to add a disk to a stripe set after the logical volume is created." http://www.sistina.com/lvm_howtos/lvm_howto.pdf Mark Post -----Original Message----- From: Phil Tully [mailto:xaphil@;vm.worldnet.ml.com] Sent: Thursday, October 17, 2002 8:25 AM To: [EMAIL PROTECTED] Subject: striped LVM non-extensible We have moved a large filesystem to a striped LVM (5 physical volumes, 5 stripes) and now find that one of the advantages of LVM is lost, non-disruptive expansion. I wanted to make sure I am correct that a striped LVM can not be expaned without being rebuild? Phil
