Hi, I'm running a similar configuration (HP/Serverengines UNAs) and ran into similar problems. The only configuration I could get to work even sometimes was using mainline kernel 3.0.0 and compiled iscsi userland, whatever the latest version was ~3 months ago.
HP have told me that you're not supposed to be able to connect a HP/Serverengines NIC to an iscsi target unless you have: - A FlexFabric Switch - The appropriate FlexFabric license Which sounds to me like filthy lies, since iSCSI is just plain tcp. There could be some autodetection faff that the NICs do, but I doubt it. I ended up using the tcp transport, as the performance impact for what i'm running didn't seem to be too noticeable (Xen VMs, NFS roots) Seth On 22 September 2011 06:02, coec <[email protected]> wrote: > Hi all > > I'm using RHEL 6.1 (fully patched, 2.6.32-131.12.1.el6.x86_64 with > iscsi-initiator-utils-6.2.0.872-21.el6.x86_64) on HP BL460c G7 blades > talking to a P4500 14.4TB Virt SAN (two clustered P4500 boxes). > > As the blade has two FlexHBA (iSCSI) interfaces I want to do > multipathing. Is the following valid? (Spefically, should both ifaces > have the same iqn?) > --- > iscsiadm -m iface > default tcp,<empty>,<empty>,<empty>,<empty> > iser iser,<empty>,<empty>,<empty>,<empty> > be2iscsi.00:17:a4:77:10:01 be2iscsi, > 00:17:a4:77:10:01,<empty>,<empty>,iqn.2011-08.scada.benvir2p > be2iscsi.00:17:a4:77:10:00 be2iscsi, > 00:17:a4:77:10:00,<empty>,<empty>,iqn.2011-08.scada.benvir2p > --- > > In this setup, I can only login to the LUN on iface be2iscsi. > 00:17:a4:77:10:01. When I attempt to login with the other iface I get > 'iscsiadm: No records found'. > > I have other servers where I'm only using a single FlexHBA (be2iscsi) > and they are having their own troubles. For example, dmesg is > reporting lots of: > --- > scsi: host 0 channel 0 id 0 lun4194304 has a LUN larger than allowed > by the host adapter > device-mapper: table: 253:7: multipath: error getting device > device-mapper: ioctl: error adding target to table > device-mapper: table: 253:7: multipath: error getting device > device-mapper: ioctl: error adding target to table > scsi: host 0 channel 0 id 0 lun4194304 has a LUN larger than allowed > by the host adapter > device-mapper: table: 253:7: multipath: error getting device > device-mapper: ioctl: error adding target to table > device-mapper: table: 253:7: multipath: error getting device > device-mapper: ioctl: error adding target to table > --- > > cat /proc/scsi/scsi > Attached devices: > Host: scsi0 Channel: 00 Id: 00 Lun: 00 > Vendor: HP Model: P410i Rev: 3.66 > Type: RAID ANSI SCSI revision: 05 > Host: scsi0 Channel: 00 Id: 00 Lun: 01 > Vendor: HP Model: LOGICAL VOLUME Rev: 3.66 > Type: Direct-Access ANSI SCSI revision: 05 > Host: scsi1 Channel: 00 Id: 00 Lun: 00 > Vendor: LEFTHAND Model: iSCSIDisk Rev: 9000 > Type: Direct-Access ANSI SCSI revision: 05 > > cat /proc/partitions > major minor #blocks name > > 8 0 586029016 sda > 8 1 512000 sda1 > 8 2 585515008 sda2 > 253 0 2097152 dm-0 > 253 1 50331648 dm-1 > 253 2 4194304 dm-2 > 253 3 4194304 dm-3 > 253 4 4194304 dm-4 > 253 5 4194304 dm-5 > 8 16 1073741824 sdb > 253 6 1073741824 dm-6 > > This is all standard data iSCSI, I'm not attempting to do iSCSI > booting at all. > > I've been trying to make this work for a while now and I'm wondering > if I should just use software iSCSI? > > Thanks > > CC > > -- > You received this message because you are subscribed to the Google Groups > "open-iscsi" group. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]. > For more options, visit this group at > http://groups.google.com/group/open-iscsi?hl=en. > > -- You received this message because you are subscribed to the Google Groups "open-iscsi" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/open-iscsi?hl=en.
