On Tue, 11 Dec 2007, Tsukasa Morii wrote:
In other words, I don't want a file under one unified volume to be copied among four servers from the standpoint of network bandwidth, but I need the minimum redundancy that sytem still works when one of four servers stops, but donesn't work in case that two of four servers fails.
Is it good enough if you on the clients Unify or Stripe over two AFRs? Just like RAID10.
Create AFR_A from SERVER_1 and SERVER_2. Create AFR_B from SERVER_3 and SERVER_4. Unify or Stripe AFR_A and AFR_B together. Regards, Jerker Nyberg.