Re: [zfs-discuss] Bottlenecks in building a system

2007-04-20 Thread Adam Lindsay
[EMAIL PROTECTED] wrote: I suspect that if you have a bottleneck in your system, it would be due to the available bandwidth on the PCI bus. Mm. yeah, it's what I was worried about, too (mostly through ignorance of the issues), which is why I was hoping HyperTransport and PCIe were going to give

Re: [zfs-discuss] Bottlenecks in building a system

2007-04-20 Thread johansen-osdev
Adam: > Hi, hope you don't mind if I make some portions of your email public in > a reply--I hadn't seen it come through on the list at all, so it's no > duplicate to me. I don't mind at all. I had hoped to avoid sending the list a duplicate e-mail, although it looks like my first post never m

Re: [zfs-discuss] Bottlenecks in building a system

2007-04-20 Thread Adam Lindsay
Hi, hope you don't mind if I make some portions of your email public in a reply--I hadn't seen it come through on the list at all, so it's no duplicate to me. Johansen wrote: > Adam: > > Sorry if this is a duplicate, I had issues sending e-mail this morning. > > Based upon your CPU choices, I t

Re: [zfs-discuss] Bottlenecks in building a system

2007-04-20 Thread Adam Lindsay
Richard Elling wrote: Does anyone have a clue as to where the bottlenecks are going to be with this: 16x hot swap SATAII hard drives (plus an internal boot drive) Be sure to check the actual bandwidth of the drives when installed in the final location. We have been doing some studies on the

Re: [zfs-discuss] Bottlenecks in building a system

2007-04-20 Thread Ian Collins
Adam Lindsay wrote: > In asking about ZFS performance in streaming IO situations, discussion > quite quickly turned to potential bottlenecks. By coincidence, I was > wondering about the same thing. > > Richard Elling said: > >> We know that channels, controllers, memory, network, and CPU bottlenec

Re: [zfs-discuss] Bottlenecks in building a system

2007-04-19 Thread Richard Elling
additional comments below... Adam Lindsay wrote: In asking about ZFS performance in streaming IO situations, discussion quite quickly turned to potential bottlenecks. By coincidence, I was wondering about the same thing. Richard Elling said: We know that channels, controllers, memory, networ

Re: [zfs-discuss] Bottlenecks in building a system

2007-04-19 Thread Adam Lindsay
Nicholas Lee wrote: On 4/19/07, *Adam Lindsay* <[EMAIL PROTECTED] > wrote: 16x hot swap SATAII hard drives (plus an internal boot drive) Tyan S2895 (K8WE) motherboard Dual GigE (integral nVidia ports) 2x Areca 8-port PCIe (8-lane) RAID drivers 2x AM

Re: [zfs-discuss] Bottlenecks in building a system

2007-04-19 Thread Adam Lindsay
[EMAIL PROTECTED] wrote: Adam: Does anyone have a clue as to where the bottlenecks are going to be with this: 16x hot swap SATAII hard drives (plus an internal boot drive) Tyan S2895 (K8WE) motherboard Dual GigE (integral nVidia ports) 2x Areca 8-port PCIe (8-lane) RAID drivers 2x AMD Opteron

Re: [zfs-discuss] Bottlenecks in building a system

2007-04-18 Thread Nicholas Lee
On 4/19/07, Adam Lindsay <[EMAIL PROTECTED]> wrote: 16x hot swap SATAII hard drives (plus an internal boot drive) Tyan S2895 (K8WE) motherboard Dual GigE (integral nVidia ports) 2x Areca 8-port PCIe (8-lane) RAID drivers 2x AMD Opteron 275 CPUs (2.2GHz, dual core) 8 GiB RAM The supplier is used

Re: [zfs-discuss] Bottlenecks in building a system

2007-04-18 Thread johansen-osdev
Adam: > Does anyone have a clue as to where the bottlenecks are going to be with > this: > > 16x hot swap SATAII hard drives (plus an internal boot drive) > Tyan S2895 (K8WE) motherboard > Dual GigE (integral nVidia ports) > 2x Areca 8-port PCIe (8-lane) RAID drivers > 2x AMD Opteron 275 CPUs (2

[zfs-discuss] Bottlenecks in building a system

2007-04-18 Thread Adam Lindsay
In asking about ZFS performance in streaming IO situations, discussion quite quickly turned to potential bottlenecks. By coincidence, I was wondering about the same thing. Richard Elling said: We know that channels, controllers, memory, network, and CPU bottlenecks can and will impact actual p