I dont think that is viable for Chandra. TGTD is pretty limited performance wise with its central eventloop. On a many-core machine with a lot of memory the central event loop quickly becomes a bottleneck. For these usecases you really want to run multiple instances of tgtd. In particular if you have a high-end storage subsystem attached that can deliver high enough throughput. Perhaps have one instance of TGTD for each 10GbE adapter. Perhaps one instance of TGTD for every 2 cores. But, some of us do need to run multiple tgtd processes in order to get high enough throughput. regards ronnie sahlberg On Tue, Apr 6, 2010 at 12:45 PM, FUJITA Tomonori <fujita.tomonori@xxxxxxxxxxxxx> wrote: > On Mon, 05 Apr 2010 19:15:47 -0700 > Chandra Seetharaman <sekharan@xxxxxxxxxx> wrote: > >> >> On Sun, 2010-04-04 at 16:49 +0900, FUJITA Tomonori wrote: >> > On Sat, 3 Apr 2010 08:16:29 +1100 >> > ronnie sahlberg <ronniesahlberg@xxxxxxxxx> wrote: >> > >> > > What I think Chandra is asking about is if we plan to or want to make >> > > tgtd listen on several addresses at once. >> > > Right now tgtd can listen on one address, or on all addresses. >> > > >> > > Listening on several addresses I guess would look something like this >> > > for iscsi : >> > > --iscsi portal=192.0.2.1:3260,198.51.100.1:3260 >> > > >> > > Making tgtd listen on two addresses. >> > >> > I'm still not sure what he is asking but the above is fine by me. >> > When we discussed 'portal' option, I think that we agreed the above >> > option. >> >> Consider the scenario where I have 8 ip addresses that are in different >> subnets with 4 ip address in both subnets, and I want to export 4 >> targets in one subnet and another 4 targets in the other subnet. >> >> The feature about is required to provide that kind of service. > > Can you live in most of situations if you run tgtd on all addresses > then you configure ACL on each targets? > > For example, with the following command, only initiators on > 198.51.100.0/24 can discover and connect to #1 target. > > host:~/tgt# ./usr/tgtadm --lld iscsi --op bind --mode target --tid 1 -I 198.51.100.0/24 > -- To unsubscribe from this list: send the line "unsubscribe stgt" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
