----- Original Message -----
> On 12/08/2010 06:36 AM, --[ UxBoD ]-- wrote:
> > Hi,
> >
> > Have noticed that one of our iscsi disks is showing as faulty:
> >
> > imonitor01 (3600144f0e282490000004a81fc5d0005) dm-4 NEXENTA,COMSTAR
> > [size=1024G][features=0][hwhandler=0][rw]
> > \_ round-robin 0 [prio=0][enabled]
> >   \_ 10:0:0:2 sdaa 65:160 [failed][faulty]
> > \_ round-robin 0 [prio=49][active]
> >   \_ 11:0:0:2 sdal 66:80 [active][ready]
> > \_ round-robin 0 [prio=24][enabled]
> >   \_ 8:0:0:2 sde 8:64 [active][ready]
> > \_ round-robin 0 [prio=11][enabled]
> >   \_ 9:0:0:2 sdp 8:240 [active][ready]
> >
> > though do not understand why as the same disk via alternative paths
> > is okay. If I check one of the other nodes, using a different disk,
> > one the same subsystem and network the paths are all okay:
> >
> > ildap02 (3600144f0e2824900000049d1a3350001) dm-14 NEXENTA,COMSTAR
> > [size=1024G][features=0][hwhandler=0][rw]
> > \_ round-robin 0 [prio=24][enabled]
> >   \_ 11:0:0:1 sdak 66:64 [active][ready]
> > \_ round-robin 0 [prio=49][enabled]
> >   \_ 8:0:0:1 sdd 8:48 [active][ready]
> > \_ round-robin 0 [prio=11][enabled]
> >   \_ 9:0:0:1 sdo 8:224 [active][ready]
> > \_ round-robin 0 [prio=99][active]
> >   \_ 10:0:0:1 sdz 65:144 [active][ready]
> >
> > Path 10 is showing absolutely fine. Everything is functioning okay
> > but do keep getting the following in messages:
> >
> > Dec 8 07:32:14 kvm01 multipathd: sdaa: tur checker reports path is
> > down
> >
> > That is the only disk which is reporting an issue; and I have
> > checked the configuration multiple times now and cannot see anything
> > wrong. I have rescanned as-well and no errors have been produced.
> >
> > Any ideas please ?
> 
> Does "iscsiadm -m session -P 3" show the session state as logged in?
> 
> If you do your own sg_turs /dev/sdaa what does it return? If it
> returns
> error could you do
> 
> sg_turs -v /dev/sdaa
> 
> and send the output?

Hi Mike,

The disk according to iscsiadm is showing as offline and the sg_turs command 
does not exist on the server:

iSCSI Transport Class version 2.0-870
version 2.0-871
Target: iqn.1986-03.com.sun:02:kvm01
        Current Portal: 172.30.13.78:3260,2
        Persistent Portal: 172.30.13.78:3260,2
                **********
                Interface:
                **********
                Iface Name: default
                Iface Transport: tcp
                Iface Initiatorname: iqn.2008-05.biz.xxxxxxxxx:kvm01-general
                Iface IPaddress: 172.30.13.67
                Iface HWaddress: default
                Iface Netdev: default
                SID: 1
                iSCSI Connection State: LOGGED IN
                iSCSI Session State: LOGGED_IN
                Internal iscsid Session State: NO CHANGE
                ************************
                Negotiated iSCSI params:
                ************************
                HeaderDigest: None
                DataDigest: None
                MaxRecvDataSegmentLength: 131072
                MaxXmitDataSegmentLength: 65536
                FirstBurstLength: 65536
                MaxBurstLength: 524288
                ImmediateData: Yes
                InitialR2T: Yes
                MaxOutstandingR2T: 1
                ************************
                Attached SCSI devices:
                ************************
                Host Number: 8  State: running
                scsi8 Channel 00 Id 0 Lun: 0
                        Attached scsi disk sdc          State: running
                scsi8 Channel 00 Id 0 Lun: 1
                        Attached scsi disk sdd          State: running
                scsi8 Channel 00 Id 0 Lun: 10
                        Attached scsi disk sdm          State: running
                scsi8 Channel 00 Id 0 Lun: 11
                        Attached scsi disk sdau         State: running
                scsi8 Channel 00 Id 0 Lun: 12
                        Attached scsi disk sdav         State: running
                scsi8 Channel 00 Id 0 Lun: 2
                        Attached scsi disk sde          State: running
                scsi8 Channel 00 Id 0 Lun: 3
                        Attached scsi disk sdf          State: running
                scsi8 Channel 00 Id 0 Lun: 4
                        Attached scsi disk sdg          State: running
                scsi8 Channel 00 Id 0 Lun: 5
                        Attached scsi disk sdh          State: running
                scsi8 Channel 00 Id 0 Lun: 6
                        Attached scsi disk sdi          State: running
                scsi8 Channel 00 Id 0 Lun: 7
                        Attached scsi disk sdj          State: running
                scsi8 Channel 00 Id 0 Lun: 8
                        Attached scsi disk sdk          State: running
                scsi8 Channel 00 Id 0 Lun: 9
                        Attached scsi disk sdl          State: running
        Current Portal: 172.30.13.62:3260,2
        Persistent Portal: 172.30.13.62:3260,2
                **********
                Interface:
                **********
                Iface Name: default
                Iface Transport: tcp
                Iface Initiatorname: iqn.2008-05.biz.xxxxxxxxx:kvm01-general
                Iface IPaddress: 172.30.13.51
                Iface HWaddress: default
                Iface Netdev: default
                SID: 2
                iSCSI Connection State: LOGGED IN
                iSCSI Session State: LOGGED_IN
                Internal iscsid Session State: NO CHANGE
                ************************
                Negotiated iSCSI params:
                ************************
                HeaderDigest: None
                DataDigest: None
                MaxRecvDataSegmentLength: 131072
                MaxXmitDataSegmentLength: 65536
                FirstBurstLength: 65536
                MaxBurstLength: 524288
                ImmediateData: Yes
                InitialR2T: Yes
                MaxOutstandingR2T: 1
                ************************
                Attached SCSI devices:
                ************************
                Host Number: 9  State: running
                scsi9 Channel 00 Id 0 Lun: 0
                        Attached scsi disk sdn          State: running
                scsi9 Channel 00 Id 0 Lun: 1
                        Attached scsi disk sdo          State: running
                scsi9 Channel 00 Id 0 Lun: 10
                        Attached scsi disk sdx          State: running
                scsi9 Channel 00 Id 0 Lun: 11
                        Attached scsi disk sdaw         State: running
                scsi9 Channel 00 Id 0 Lun: 12
                        Attached scsi disk sdax         State: running
                scsi9 Channel 00 Id 0 Lun: 2
                        Attached scsi disk sdp          State: running
                scsi9 Channel 00 Id 0 Lun: 3
                        Attached scsi disk sdq          State: running
                scsi9 Channel 00 Id 0 Lun: 4
                        Attached scsi disk sdr          State: running
                scsi9 Channel 00 Id 0 Lun: 5
                        Attached scsi disk sds          State: running
                scsi9 Channel 00 Id 0 Lun: 6
                        Attached scsi disk sdt          State: running
                scsi9 Channel 00 Id 0 Lun: 7
                        Attached scsi disk sdu          State: running
                scsi9 Channel 00 Id 0 Lun: 8
                        Attached scsi disk sdv          State: running
                scsi9 Channel 00 Id 0 Lun: 9
                        Attached scsi disk sdw          State: running
        Current Portal: 172.30.13.46:3260,2
        Persistent Portal: 172.30.13.46:3260,2
                **********
                Interface:
                **********
                Iface Name: default
                Iface Transport: tcp
                Iface Initiatorname: iqn.2008-05.biz.xxxxxxxxx:kvm01-general
                Iface IPaddress: 172.30.13.33
                Iface HWaddress: default
                Iface Netdev: default
                SID: 3
                iSCSI Connection State: LOGGED IN
                iSCSI Session State: LOGGED_IN
                Internal iscsid Session State: NO CHANGE
                ************************
                Negotiated iSCSI params:
                ************************
                HeaderDigest: None
                DataDigest: None
                MaxRecvDataSegmentLength: 131072
                MaxXmitDataSegmentLength: 65536
                FirstBurstLength: 65536
                MaxBurstLength: 524288
                ImmediateData: Yes
                InitialR2T: Yes
                MaxOutstandingR2T: 1
                ************************
                Attached SCSI devices:
                ************************
                Host Number: 10 State: running
                scsi10 Channel 00 Id 0 Lun: 0
                        Attached scsi disk sdy          State: running
                scsi10 Channel 00 Id 0 Lun: 1
                        Attached scsi disk sdz          State: running
                scsi10 Channel 00 Id 0 Lun: 10
                        Attached scsi disk sdai         State: running
                scsi10 Channel 00 Id 0 Lun: 11
                        Attached scsi disk sday         State: running
                scsi10 Channel 00 Id 0 Lun: 12
                        Attached scsi disk sdaz         State: running
                scsi10 Channel 00 Id 0 Lun: 2
                        Attached scsi disk sdaa         State: offline
                scsi10 Channel 00 Id 0 Lun: 3
                        Attached scsi disk sdab         State: running
                scsi10 Channel 00 Id 0 Lun: 4
                        Attached scsi disk sdac         State: running
                scsi10 Channel 00 Id 0 Lun: 5
                        Attached scsi disk sdad         State: running
                scsi10 Channel 00 Id 0 Lun: 6
                        Attached scsi disk sdae         State: running
                scsi10 Channel 00 Id 0 Lun: 7
                        Attached scsi disk sdaf         State: running
                scsi10 Channel 00 Id 0 Lun: 8
                        Attached scsi disk sdag         State: running
                scsi10 Channel 00 Id 0 Lun: 9
                        Attached scsi disk sdah         State: running
        Current Portal: 172.30.13.30:3260,2
        Persistent Portal: 172.30.13.30:3260,2
                **********
                Interface:
                **********
                Iface Name: default
                Iface Transport: tcp
                Iface Initiatorname: iqn.2008-05.biz.xxxxxxxxx:kvm01-general
                Iface IPaddress: 172.30.13.19
                Iface HWaddress: default
                Iface Netdev: default
                SID: 4
                iSCSI Connection State: LOGGED IN
                iSCSI Session State: LOGGED_IN
                Internal iscsid Session State: NO CHANGE
                ************************
                Negotiated iSCSI params:
                ************************
                HeaderDigest: None
                DataDigest: None
                MaxRecvDataSegmentLength: 131072
                MaxXmitDataSegmentLength: 65536
                FirstBurstLength: 65536
                MaxBurstLength: 524288
                ImmediateData: Yes
                InitialR2T: Yes
                MaxOutstandingR2T: 1
                ************************
                Attached SCSI devices:
                ************************
                Host Number: 11 State: running
                scsi11 Channel 00 Id 0 Lun: 0
                        Attached scsi disk sdaj         State: running
                scsi11 Channel 00 Id 0 Lun: 1
                        Attached scsi disk sdak         State: running
                scsi11 Channel 00 Id 0 Lun: 10
                        Attached scsi disk sdat         State: running
                scsi11 Channel 00 Id 0 Lun: 11
                        Attached scsi disk sdba         State: running
                scsi11 Channel 00 Id 0 Lun: 12
                        Attached scsi disk sdbb         State: running
                scsi11 Channel 00 Id 0 Lun: 2
                        Attached scsi disk sdal         State: running
                scsi11 Channel 00 Id 0 Lun: 3
                        Attached scsi disk sdam         State: running
                scsi11 Channel 00 Id 0 Lun: 4
                        Attached scsi disk sdan         State: running
                scsi11 Channel 00 Id 0 Lun: 5
                        Attached scsi disk sdao         State: running
                scsi11 Channel 00 Id 0 Lun: 6
                        Attached scsi disk sdap         State: running
                scsi11 Channel 00 Id 0 Lun: 7
                        Attached scsi disk sdaq         State: running
                scsi11 Channel 00 Id 0 Lun: 8
                        Attached scsi disk sdar         State: running
                scsi11 Channel 00 Id 0 Lun: 9
                        Attached scsi disk sdas         State: running

-- 
Thanks, Phil

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