On Tue, 18 Dec 2007, Guy Watkins wrote:
} -----Original Message----- } From: linux-raid-owner@xxxxxxxxxxxxxxx [mailto:linux-raid- } owner@xxxxxxxxxxxxxxx] On Behalf Of Brendan Conoboy } Sent: Tuesday, December 18, 2007 3:36 PM } To: Norman Elton } Cc: linux-raid@xxxxxxxxxxxxxxx } Subject: Re: Raid over 48 disks } } Norman Elton wrote: } > We're investigating the possibility of running Linux (RHEL) on top of } > Sun's X4500 Thumper box: } > } > http://www.sun.com/servers/x64/x4500/ } } Neat- 6 8 port SATA controllers! It'll be worth checking to be sure } each controller has equal bandwidth. If some controllers are on slower } buses than others you may want to consider that and balance the md } device layout. Assuming the 6 controllers are equal, I would make 3 16 disk RAID6 arrays using 2 disks from each controller. That way any 1 controller can fail and your system will still be running. 6 disks will be used for redundancy. Or 6 8 disk RAID6 arrays using 1 disk from each controller). That way any 2 controllers can fail and your system will still be running. 12 disks will be used for redundancy. Might be too excessive! Combine them into a RAID0 array. Guy - To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
I'd be curious what the maximum aggregate bandwidth would be with RAID 0 of 48 disks on that controller..
- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
