https://community.hpe.com/t5/xp-storage/hp-xp-thin-provisioning/m-p/4782034#M477 Hi Manish,<BR /><BR />From the array perspective - it doesn't matter when you are using ThP. However (I'll assume you a UNIX based OS since you said volume group), having additional LUNs in a VG can get better performance due to queue depths. One HP-UX, there is a default value of 8 per LUN. If you have 4 LUNs in the VG, now you have 32 I/O's possible for queueing. This value can be changed on a per LUN value, or globally for all LUNs in the kernel.<BR /><BR />Cheers,<BR /><BR />Curt Thu, 28 Apr 2011 15:23:14 GMT krusty 2011-04-28T15:23:14Z https://community.hpe.com/t5/xp-storage/hp-xp-thin-provisioning/m-p/4782033#M476 multiple Volume per Volume Group or single Volume per Volume Group !<BR />Which is better to use. Is there any guidelines for this. Wed, 27 Apr 2011 18:03:02 GMT https://community.hpe.com/t5/xp-storage/hp-xp-thin-provisioning/m-p/4782033#M476 Manish K 2011-04-27T18:03:02Z https://community.hpe.com/t5/xp-storage/hp-xp-thin-provisioning/m-p/4782034#M477 Hi Manish,<BR /><BR />From the array perspective - it doesn't matter when you are using ThP. However (I'll assume you a UNIX based OS since you said volume group), having additional LUNs in a VG can get better performance due to queue depths. One HP-UX, there is a default value of 8 per LUN. If you have 4 LUNs in the VG, now you have 32 I/O's possible for queueing. This value can be changed on a per LUN value, or globally for all LUNs in the kernel.<BR /><BR />Cheers,<BR /><BR />Curt Thu, 28 Apr 2011 15:23:14 GMT https://community.hpe.com/t5/xp-storage/hp-xp-thin-provisioning/m-p/4782034#M477 krusty 2011-04-28T15:23:14Z