Date: Fri, 17 Nov 2017 10:30:11 +0200 From: Daniel Braniss <danny@cs.huji.ac.il> To: "Patrick M. Hausen" <hausen@punkt.de> Cc: Freebsd hackers list <freebsd-hackers@freebsd.org>, =?utf-8?Q?Edward_Tomasz_Napiera=C5=82a?= <trasz@freebsd.org>, stable@freebsd.org Subject: Re: iscsi target and VMware/esxi timeouts -- SOLVED Message-ID: <E56F0449-0503-49FC-956B-6D6F41AF3F89@cs.huji.ac.il> In-Reply-To: <6B1A4A67-D0E9-4A73-B690-60A52D144F81@punkt.de> References: <7779629C-A1E5-4E96-B660-A0FAD231468C@cs.huji.ac.il> <6B1A4A67-D0E9-4A73-B690-60A52D144F81@punkt.de>
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> On 14 Nov 2017, at 11:28, Patrick M. Hausen <hausen@punkt.de> wrote: > > Hello, > >> Am 14.11.2017 um 10:08 schrieb Daniel Braniss <danny@cs.huji.ac.il>: >> >> Hi, >> we are experimenting issues with several esxi’s servers that use freebsd 10.2 stable as a iscsi target. >> ie: >> Nov 11 17:58:16 store-07 kernel: WARNING: 132.65.11.201 (iqn.1998-01.com.vmware:pe-02-2fa7cd9e): no ping reply (NOP-Out) after 5 seconds; dropping connection >> Nov 11 17:58:16 store-07 kernel: WARNING: 132.65.11.201 (iqn.1998-01.com.vmware:pe-02-2fa7cd9e): no ping reply (NOP-Out) after 5 seconds; dropping connection >> Nov 11 17:58:16 store-07 kernel: WARNING: 132.65.11.205 (iqn.1998-01.com.vmware:pe-03-13e8b52d): no ping reply (NOP-Out) after 5 seconds; dropping connection >> Nov 11 17:58:17 store-07 kernel: WARNING: 132.65.11.203 (iqn.1998-01.com.vmware:pe-13-60e87d06): no ping reply (NOP-Out) after 5 seconds; dropping connection >> Nov 11 17:58:17 store-07 kernel: WARNING: 132.65.11.205 (iqn.1998-01.com.vmware:pe-03-13e8b52d): no ping reply (NOP-Out) after 5 seconds; dropping connection >> >> these are 3 different esxis that almost at the same time the target looses connection to the initiators. >> at the moment most ‘clients’ recover from the scsi error, but older freebsds don’t. >> >> in any case, increasing the timeout is not helping. >> >> any clues are welcome :-) >> >> over the weekend i’m planning to upgrade the target to 11.1 and take for the hills. > > Are you using istgt or ctld? > > We have did experience similar occasional problems with the former > but never with the latter. > > Patrick the iscsi initiator of the esxi’s (VMware) does answer to NOP’s once in a blue moon! this was checked by sniffing the network. setting kern.cam.ctl.iscsi.ping_timeout=0 solved this. thanks, danny
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