Robert Blayzor wrote: > 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.
I have a feeling this is because the ISCSI initiator in FreeBSD hasn't been updated since 2007. There have been patches and new development but nothing committed and/or MFC-ed. I'm just starting to evaluate it, so I can't say anything about its stability yet.
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