On 03/08/2012 01:41 PM, John Anthony wrote:
All: This is situation where the number of LUNS - spindles - are many with the LV striping across all of them. To avoid hotspots - the idea is to control the order in which the LUNs are written to by the LVs. It would appear the specifying the underlying PV - LUN - order would achieve this goal. Is that correct ? Is there any value to going through that trouble ? any experiences ?
Well striping in general is a "good thing" for performance it's just a matter of how you want to implement it. Yes, LVM can create striped volumes, you could also create a software RAID array [1] to act as your physical volume and achieve the same goal. There's copious material available on the topic of RAID striping. Peter 1. or buy a HW RAID, or a SAN.
TIA, -JAC _______________________________________________ linux-lvm mailing list linux-lvm@redhat.com https://www.redhat.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
_______________________________________________ linux-lvm mailing list linux-lvm@redhat.com https://www.redhat.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
