Sorry for the cross post. -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Max Clark Sent: Tuesday, September 02, 2003 11:00 AM To: [EMAIL PROTECTED] Subject: 20TB Storage System
Hi all, I need to attach 20TB of storage to a network (as low cost as possible), I need to sustain 250Mbit/s or 30MByte/s of sustained IO from the storage to the disk. I have found external Fibre Channel -> ATA 133 Raid enclosures. These enclosures will house 16 drives so with 250GB drives a total of 3.5TB each after a RAID 5 format. These enclosures have advertised sustained IO of 90-100MByte/s each. One solution we are thinking about is to use a Intel XEON server with 3x FC HBA controller cards in the server each attached to a separate storage enclosure. In any event we would be required to use ccd or vinum to stripe multiple storage enclosures together to form one logical volume. I can partition this system into two separate 10TB storage pools. Given the above: 1) What would my expected IO be using vinum to stripe the storage enclosures detailed above? 2) What is the maximum size of a filesystem that I can present to the host OS using vinum/ccd? Am I limited anywhere that I am not aware of? 3) Could I put all 20TB on one system, or will I need two to sustain the IO required? 4) If you were building this system how would you do it? (The installed $/GB must be below $5.00 dollars). My other options are to use Solaris or Windows (which I would rather not do). Thanks in advance, Max _______________________________________________ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-isp To unsubscribe, send any mail to "[EMAIL PROTECTED]" _______________________________________________ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"