iSCSI Target
HW: Intel Xeon E5405, 4GB RAM, 3ware 9550SX-12 (без BBU), 5xSATA 750G RAID5
OS: CentOS 5.2 (2.6.18-92.1.6.el5)
iSCSI: IET (iscsitarget-0.4.15-4.el5)
iSCSI initiator
HW: 2 x Xeon 50xx, 16Gb RAM
OS: Virtuozzo 4.0 (2.6.18-028stab053.17
iSCSI: scsi-initiator-utils-6.2.0.868-0.7.el5
сеть - 1G (воткнуты в один свич).
fs - ext3.
параметры монтирования:
nfs: noatime,rsize=32768,wsize=32768,tcp,hard,intr,noacl,nolock
iscsi: defaults
dbench 25 clients:
NFS: Throughput 5.06 MB/sec 25 procs
iSCSI: Throughput 456.077 MB/sec 25 procs
NFS: Throughput 4.91515 MB/sec 50 procs
iSCSI: Throughput 402.445 MB/sec 50 procs
bonnie++:
bonnie++ -d /mnt/nfs -s 32G -u root -m "cool-nfs"
bonnie++ -d /mnt/iscsi -s 32G -u root -m "cool-iscsi"
Version 1.03 ------Sequential Output------ --Sequential Input- --Random-
-Per Chr- --Block-- -Rewrite- -Per Chr- --Block-- --Seeks--
Machine Size K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP /sec %CP
cool-nfs 32G 22143 43 20634 23 7875 1 31551 52 32243 3 232.2 0
------Sequential Create------ --------Random Create--------
-Create-- --Read--- -Delete-- -Create-- --Read--- -Delete--
files /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP
16 541 2 6783 22 946 3 575 2 8680 13 844 4
Version 1.03 ------Sequential Output------ --Sequential Input- --Random-
-Per Chr- --Block-- -Rewrite- -Per Chr- --Block-- --Seeks--
Machine Size K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP /sec %CP
cool-iscsi 32G 44657 87 58457 23 22916 5 32119 51 61974 4 188.3 0
------Sequential Create------ --------Random Create--------
-Create-- --Read--- -Delete-- -Create-- --Read--- -Delete--
files /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP
16 +++++ +++ +++++ +++ +++++ +++ +++++ +++ +++++ +++ +++++ +++
P.S. если будут свободные железяки надо потестировать NFS vs iSCSI + GFS