Some friends of mine are looking at the new "DroboPro", which makes a lot of disk space available via iSCSI (in addition to firewire 800), and they were wondering how well iSCSI works with FreeBSD. I haven't paid attention to iSCSI support. Is there anyone using it heavily for disk-storage under FreeBSD? Has there been much changed for iSCSI support in the 8.x branch, or is 7.x support working fine? -- Garance Alistair Drosehn = gad@gilead.netel.rpi.edu Senior Systems Programmer or gad@freebsd.org Rensselaer Polytechnic Institute or drosih@rpi.edu
Garance A Drosihn wrote:> Some friends of mine are looking at the new "DroboPro", which makes a > lot of disk space available via iSCSI (in addition to firewire 800), > and they were wondering how well iSCSI works with FreeBSD. I haven't > paid attention to iSCSI support. Is there anyone using it heavily > for disk-storage under FreeBSD? Has there been much changed for > iSCSI support in the 8.x branch, or is 7.x support working fine? >I have some experience with "net/istgt" port and it looks solid compared to OpenBSD implementation "net/iscsi-target". Of course your milage may wary. net/istgt This is an iSCSI target, it serves iSCSI protocol and provides SCSI devices to the initiator (client). WWW: http://shell.peach.ne.jp/aoyama/
Garance A Drosihn wrote:> Some friends of mine are looking at the new "DroboPro", which makes a > lot of disk space available via iSCSI (in addition to firewire 800), > and they were wondering how well iSCSI works with FreeBSD. I haven't > paid attention to iSCSI support. Is there anyone using it heavily > for disk-storage under FreeBSD? Has there been much changed for > iSCSI support in the 8.x branch, or is 7.x support working fine?I suppose you are interested in the "client" (initiator) side of iSCSI support. It hasn't changed much between 7.x and 8.x but there are apparently some announcements of a newer version: http://lists.freebsd.org/pipermail/freebsd-scsi/2009-March/003834.html I can't find any more information on it. -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 252 bytes Desc: OpenPGP digital signature Url : http://lists.freebsd.org/pipermail/freebsd-stable/attachments/20090408/4f99c0b0/signature.pgp
On Apr 7, 2009, at 5:43 PM, Garance A Drosihn wrote:> Some friends of mine are looking at the new "DroboPro", which makes a > lot of disk space available via iSCSI (in addition to firewire 800), > and they were wondering how well iSCSI works with FreeBSD. I haven't > paid attention to iSCSI support. Is there anyone using it heavily > for disk-storage under FreeBSD? Has there been much changed for > iSCSI support in the 8.x branch, or is 7.x support working fine?If you're looking for "production ready" iSCSI initiator support in FreeBSD, do yourself a favor, save some time, and look into something else. Seriously, we went down this road just recently testing both FreeBSD 7.0/7.1 amd64 on various Dell servers with Intel (em) Gig-E NIC's and it was very easy to basically get the box to lock up solid and/or panic. Our targets were both Netapp and Equallogic iSCSI SAN's. We didn't have a lot of time to debug it, our setup was pretty simple.. yet when we tried to run various simulated real world load on it the boxes just caved. Even with jumbo frames enabled on the NIC's the performance was mediocre at best. Unfortunately due a time constraint we had to move the clients to CentOS 5.2/5.3 and things have been very good so far. I was hoping that FreeBSD's iSCSI support was a bit more solid, or at least hoping that the (isp) driver had support for the QLogic iSCSI HBA's... no luck. YMMV -- Robert Blayzor, BOFH INOC, LLC rblayzor@inoc.net http://www.inoc.net/~rblayzor/
> * Danny Braniss <danny@cs.huji.ac.il> [2009-04-08 15:54:25 +0300]: > > > > > > Garance A Drosihn wrote: > > > > Some friends of mine are looking at the new "DroboPro", which makes a > > > > lot of disk space available via iSCSI (in addition to firewire 800), > > > > and they were wondering how well iSCSI works with FreeBSD. I haven't > > > > paid attention to iSCSI support. Is there anyone using it heavily > > > > for disk-storage under FreeBSD? Has there been much changed for > > > > iSCSI support in the 8.x branch, or is 7.x support working fine? > > > > > > I suppose you are interested in the "client" (initiator) side of iSCSI > > > support. It hasn't changed much between 7.x and 8.x but there are > > > apparently some announcements of a newer version: > > > > > > http://lists.freebsd.org/pipermail/freebsd-scsi/2009-March/003834.html > > > > > > I can't find any more information on it. > > the latest is in: > > http://www.cs.huji.ac.il/~danny/ftp/freebsd/iscsi-2.1.1.tar.gz > > I install this to freebsd 7.1 i386. > Target from zfs solaris 10 sparc64 > > > iscontrol -c /etc/iscsi.conf -n myiscsi > Get loop creating da devices > kill iscontrol don`t work, kill -9 don`t work too. > kldunload -f iscsi_initiator.ko > fail system after 10-15 second (celeron 2000) > > What can i do to get more info or solve problem?there is a newer version at: ftp://ftp.cs.huji.ac.il/users/danny/freebsd/iscsi-2.1.2.tar.gz you will need to recompile iscontrol too. run tcpdump -s512 port 3260 -w iscsi.cap and send me the iscsi.cap. cheers, danny