Date: Tue, 7 Jul 2009 13:36:29 -0400 From: Gary Palmer <gpalmer@freebsd.org> To: Jiansong Liu <jiansong.liu@gmail.com> Cc: freebsd-scsi@freebsd.org Subject: Re: iscsi_initiator 2.2.2 slow to write and read Message-ID: <20090707173629.GA33007@in-addr.com> In-Reply-To: <7f834c1c0907070405mdab72u3223d90b84b2a201@mail.gmail.com> References: <7f834c1c0907070405mdab72u3223d90b84b2a201@mail.gmail.com>
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On Tue, Jul 07, 2009 at 07:05:03PM +0800, Jiansong Liu wrote: > Hello All, > > I downloaded the latest iscsi_initiator 2.2.2 from Danny's FTP, > and compile kernel and iscontrol with 7.2 STABLE GENERIC config, only got > about 800KB/Sec speed to a DELL MD3000i disk array, I searched in > this malling list and found a patch, but it seems is not for this version > (2.2.2), any advice would be great appreciated. > > here are some details about my system: > > # sysctl net.iscsi > net.iscsi.driver_version: 2.2.2 > net.iscsi.isid: ???DIB00 > net.iscsi.sessions: 1 > net.iscsi.0.targetname: > iqn.1984-05.com.dell:powervault.md3000i.60024e80004e71a9000000004a011120 > net.iscsi.0.targeaddress: 192.168.4.182 > net.iscsi.0.stats: recv=594 sent=594 flags=0x0000039f pdus-alloc=16 > pdus-max=16 cws=426 cmd=157 exp=157 max=300 stat=159 itt=157 > net.iscsi.0.douio: 0 > net.iscsi.0.pid: 754 > > # cat /etc/iscsi.conf > scpstorage01 { > initiatorname =iqn.2005-01.il.ac.huji.cs::static01.com > TargetName > =iqn.1984-05.com.dell:powervault.md3000i.60024e80004e71a9000000004a011120 > TargetAddress =192.168.4.182:3260,1 > tags =4 > } I'm no expert, but if that "tags" line refers to SCSI tags then that number is too small. Try increasing it and see if that helps to address the problem. Regards, Gary
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