> On Monday 31 March 2008 17:28,
david@lang.hm wrote:
>> On Mon, 31 Mar 2008, Daniel Phillips wrote:
>>
>>> On Tuesday 18 March 2008 09:36,
david@lang.hm wrote:
>>>> P.S. 8xPCI-e slots are only able to do 2GB/s of data transfer, in an
>>>> earlier post Daniel claimed that you needed 3GB/s of disk to mirror to the
>>>> disk, so the scenerio listed above looses 1/3 of it's performance compared
>>>> to what was being claimed earlier.
>>>
>>> Each Violin 1010 has two 8xPCI-e interfaces.
>>
>> but if you use them for redundancy by hooking them to two machines you can
>> only use one of them on your active system.
>
> That is why you use two Violin 1010 boxes, each connected to two
> servers. The resulting mirror will have roughly 1 GByte/sec write
> bandwidth and 3 GByte/sec read bandwidth. Fast enough for you? No?
>
> Well then...
>
> Continue this idea to achieve whatever bandwidth you want to the ramdisk,
> subject to finding server motherboards that can take lots of PCI-e 8x
> cards, which are admittedly rare, but see "have your checkbook ready".
