You’re right, it is in section 8.2. Maybe it needs to be said in 8.1.1 as well?
Dave From: [email protected] [mailto:[email protected]] On Behalf Of Lee Duncan Sent: 15 December 2016 19:41 To: [email protected] Subject: Re: Problem with iSCSI connected LTO-2 tape drive On Dec 15, 2016, at 7:14 AM, [email protected] wrote: Lee, It would appear that the guilty party was: node.conn[0].timeo.noop_out_interval = 5 node.conn[0].timeo.noop_out_timeout = 5 I changed both of these to 0 for the tape device and the problem went away. Excellent. Please note that the README.gz for open-scsi doesn't actually say that this is what you need to do to disable the NOP-out polling, so could I suggest that this be stated explicitly. My README says, in section 8.2: For this setup, you can turn off iSCSI pings by setting: node.conn[0].timeo.noop_out_interval = 0 node.conn[0].timeo.noop_out_timeout = 0 I must admit that I find it hard to imagine that an iSCSI target would reply to a NOP-out while it was processing a command such as a tape fsf or even tape erase (whose timeout is 6 * the long-timeout of 4 hours). Should perhaps the NOP-out polling be suspended while a command is being processed? Or alternatively maybe the NOP-out polling be completely disabled by default with something in the README.gz file that explains WHEN you might want it and how to enable it. It's certainly clear that (at least) the MS iSCSI initiator doesn't send NOP-out polls. open-iscsi is normally used to deal with discs. When it’s used with tape it’s not unusual to find bugs or design errors that we did not know were present. Perhaps a small blurb in the README about dealing with tape, suggesting turning NOOP/ping off. Please feel free to post a pull request on github or suggest a patch on this list. Regards Dave -- Lee Duncan "Choice means saying no to one thing so you can say yes to another." -- Dan Millman -- You received this message because you are subscribed to a topic in the Google Groups "open-iscsi" group. To unsubscribe from this topic, visit https://groups.google.com/d/topic/open-iscsi/ViC-za8eHdc/unsubscribe. To unsubscribe from this group and all its topics, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/open-iscsi. For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups "open-iscsi" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/open-iscsi. For more options, visit https://groups.google.com/d/optout.
