Re: [ceph-users] cache pools on hypervisor servers

2014-08-17 Thread Andrei Mikhailovsky
t; Sent: Thursday, 14 August, 2014 6:33:25 PM > Subject: Re: [ceph-users] cache pools on hypervisor servers > > On Thu, 14 Aug 2014, Andrei Mikhailovsky wrote: > > Hi guys, > > > > Could someone from the ceph team please comment on running osd cache pool > > on > &

Re: [ceph-users] cache pools on hypervisor servers

2014-08-14 Thread Sage Weil
On Thu, 14 Aug 2014, Andrei Mikhailovsky wrote: > Hi guys, > > Could someone from the ceph team please comment on running osd cache pool on > the hypervisors? Is this a good idea, or will it create a lot of performance > issues? It doesn't sound like an especially good idea. In general you want

Re: [ceph-users] cache pools on hypervisor servers

2014-08-14 Thread Andrei Mikhailovsky
Hi guys, Could someone from the ceph team please comment on running osd cache pool on the hypervisors? Is this a good idea, or will it create a lot of performance issues? Anyone in the ceph community that has done this? Any results to share? Many thanks Andrei - Original Message ---

Re: [ceph-users] cache pools on hypervisor servers

2014-08-14 Thread Robert van Leeuwen
> Personally I am not worried too much about the hypervisor - hypervisor > traffic as I am using a dedicated infiniband network for storage. > It is not used for the guest to guest or the internet traffic or anything > else. I would like to decrease or at least smooth out the traffic peaks > bet

Re: [ceph-users] cache pools on hypervisor servers

2014-08-13 Thread Andrei Mikhailovsky
Robert, thanks for your reply, please see my comments inline - Original Message - > From: "Robert van Leeuwen" > To: "Andrei Mikhailovsky" , ceph-users@lists.ceph.com > Sent: Wednesday, 13 August, 2014 6:57:57 AM > Subject: RE: cache pools on hypervisor servers > > I was hoping to get

Re: [ceph-users] cache pools on hypervisor servers

2014-08-12 Thread Robert van Leeuwen
> I was hoping to get some answers on how would ceph behaive when I install > SSDs on the hypervisor level and use them as cache pool. > Let's say I've got 10 kvm hypervisors and I install one 512GB ssd on each > server. >I then create a cache pool for my storage cluster using these ssds. My >qu

Re: [ceph-users] cache pools on hypervisor servers

2014-08-12 Thread Andrei Mikhailovsky
Anyone have an idea on how it works? Thansk - Original Message - From: "Andrei Mikhailovsky" To: ceph-users@lists.ceph.com Sent: Monday, 4 August, 2014 10:10:03 AM Subject: [ceph-users] cache pools on hypervisor servers Hello guys, I was hoping to get some answ

[ceph-users] cache pools on hypervisor servers

2014-08-04 Thread Andrei Mikhailovsky
Hello guys, I was hoping to get some answers on how would ceph behaive when I install SSDs on the hypervisor level and use them as cache pool. Let's say I've got 10 kvm hypervisors and I install one 512GB ssd on each server. I then create a cache pool for my storage cluster using these ssds. M