Kirby, please try by loading write-behind xlator on the client side. avati 2008/12/5 Kirby Zhou <kirbyzhou at sohu-rd.com>: > OK, They are HP 380 G4 rack server boxes. > P4 Xeon 3.0GHz*2 with Hyper-Thread, 4G RAM. > scsi 72g*5 raid5 for /exports/ns, sata 250G*7*2 raid5 for /exports/disk1 and > /exports/disk2. > All of the 4 boxes are connected with gigabit Ethernet switcher. > 10.10.123.21 and 10.10.123.22 are servers, while 10.10.123.25 and > 10.10.65.64 are clients. >