hi , thanks alot dear for info , now i removed the raid 0 now i have 3 hardisks /cache1 /cach2 /cache3 do u think mounting them in fstab file as : /dev/sdb1 /cache1 ext4 noatime,barrier=0,data=writeback,commit=100 0 2 /dev/sdc1 /cache2 ext4 noatime,barrier=0,data=writeback,commit=100 0 2 /dev/sdd1 /cache3 ext4 noatime,barrier=0,data=writeback,commit=100 0 2 is perfect ?? or i need another modification about mountig ?? waiting ur advice thanks alot for hinting regards -- View this message in context: http://squid-web-proxy-cache.1019090.n4.nabble.com/slow-browsing-in-centos-6-3-with-squid-3-tp4658635p4658657.html Sent from the Squid - Users mailing list archive at Nabble.com.