Mike Christie wrote: > Ken A wrote: >> Mike Christie wrote: >>> Ken A wrote: >>>> Yes, thanks, turning off nops helped with some of the timeouts. The >>>> mkfs succeeded (very slowly), with this block of errors repeating >>>> in the log (see below). >>>> >>>> I should mention that this is on a asynchronous link, (100mbps >>>> initiator <-> 1000mbps target). The initiator is running Fedora 8, >>>> 2.6.25.6-27.fc8, open-iscsi 2.0-865. >>> Are you using the tools and kernel modules from 2.0-865? Or the iscsi >>> kernel modules from 2.6.25.6-27.fc8 and tools from the rpm? >>> >>> If you did a make and make install with open-iscsi 2.0-865 from >>> open-iscsi.org then you are using the tools and kernel modules from >>> the open-iscsi.org. >>> >>> >>>> Target is Wasabi Storage Builder. >>>> >>>> Any ideas? >>> Is there anything on the target logs? >>> >>> With a 100 mbs link we might have been sending too much IO, but I >>> would have expected to see some messages about scsi commands timing >>> out and host resets firing. You can try setting these in iscsid.conf: >>> >>> >>> >>> node.session.cmds_max = 16 node.session.queue_depth = 8 >>> >> Running open-iscsi from open-iscsi.org rather than iscsi-initiator-utils >> seems to have fixed the problem on one Initiator. >> Thanks very much for your help! >> Ken >> >> > > Are you running iscsi-initiator-utils with nops on or off? And what > version of iscsi-initiator-utils? iscsi-initiator-utils is actually the > open-iscsi userspace tools.
We are running the software from the open-iscsi website (open-iscsi-2.0-869.2.tar.gz) - Not the fedora package. nops are off, and I'm playing with node.session.cmds_max and node.session.queue_depth to find a good balance. The issue I was having seems to have been related to the async connection causing too much I/O or triggering some kernel bug. The unfortunate result was a complete lockup of the Initiator machine requiring a reboot with the defaults in iscsid.conf. The problem went away when I turned off nops, reduced queue depth and cmds max and used the open-iscsi-2.0-869.2.tar.gz source. Thanks again for your assistance, Ken > > > > -- Ken Anderson Pacific.Net --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "open-iscsi" group. To post to this group, send email to open-iscsi@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/open-iscsi -~----------~----~----~----~------~----~------~--~---
