> -----Original Message----- > From: peter.cud...@sun.com [mailto:peter.cud...@sun.com] > Sent: Wednesday, December 16, 2009 6:05 PM > To: Sumit Gupta > Cc: Steffen Plotner; storage-discuss@opensolaris.org > Subject: Re: [storage-discuss] Offlining a LU timing > > At a first glance, it seems like a reasonable symptom given that the > network interfaces have been removed. The threads that are > waiting in > iscsit_abort appear to have commenced sending a SCSI response PDU and > have not yet received confirmation that the PDU has been sent out the > door. I am not sure what causes it to clear after 20 > seconds. Perhaps > the underlying TCP connection goes down at that time. Do you by any > chance have a threadlist from after the LU has finished being brought > offline? Do the LUs go offline faster if you skip the step > of bringing > the network interfaces down first?
Yes, offlining the LUs while the network interfaces are speeds up the offlining process. I was watching the output of netstat to see the connections drop much faster while the network interfaces were up. > > The following thread stack trace shows that TCP traffic is blocked > getting out the network interface, i.e. that the TCP send > queue is full. > That is the case in which so_snd_wait_qnotfull_locked will Thank you for your response. Steffen _______________________________________________ storage-discuss mailing list storage-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/storage-discuss
