Hello, we are using open iscsi downloaded from here :http://www.open- iscsi.org/bits/open-iscsi-2.0-871.tar.gz with oracle Enterprise Linux 5.5:
[r...@rac1 ~]# uname -a Linux rac1 2.6.18-194.el5 #1 SMP Mon Mar 29 22:10:29 EDT 2010 x86_64 x86_64 x86_64 GNU/Linux [r...@rac1 ~]# iscsiadm -V iscsiadm version 2.0-871 This is as two node RAC with ASM and about 7 Luns each Database one. During Performance Tests we get a stale or broken session after a couple of hours running the test. We can then copy data fast to the SAN - some gigybyte in some seconds but can read it only slow - 20 MB in more the one minute. the data will be read correct but it is slow. After logoff and login for just the one session the session is fast as before. We can reproduce the probelm with the next performance test. Unfortunally we have no error messages in the dmesg or /var/log/messages files. I checked this it is just slow no messages. Since we want to keep it simple we have no multipathing or bonding only one interface with one cable. Since the perfromance tests do not finish we have some time pressure this is a new Dell equalogic ps6000 Hardware and server. Can anybody tell us how to fix the problem or what to try. Is there an explaination why only read performance is affected. With a RAC test it is possible that one node can still read fast ant the other not unter the sesison gets a now login. Are there any other relevant logfiles or debug modes etc? Thx for help Andre -- You received this message because you are subscribed to the Google Groups "open-iscsi" group. To post to this group, send email to open-is...@googlegroups.com. To unsubscribe from this group, send email to open-iscsi+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/open-iscsi?hl=en.