Re: About seting up Raid5 on a four disk box.
From: Majed B. <hidden>
Date: 2009-10-14 13:41:49
On Wed, Oct 14, 2009 at 3:53 PM, Antonio Perez [off-list ref] wrote:
Majed B. wrote:quoted
I see. Well, whether MD is smart enough to rearrange a queue when the arrays are sharing disks or not, it still means that you can't run your processes in parallel.Does that means that different processes (treads) can't request reads on different places on the disk concurrently? I am sorry, but it seems that we are speaking different languages. -- Antonio Perez
Your applications can request as much files as they want regardless of their location, but the mechanical heads move together, so they can be at a single location at a point of time reading a single stream of a file (or multiple files if they were next to each other on the physical platter). -- Majed B. -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html