Hello, This is my first post on this group so please excuse my ignorance. I am using the combination of RHEL, iSCSI and multipath to NetApp SAN. I attach to 9 LUNs. On one path I can connect to all LUNs but on the second path I am unable to see 3 of the 9 LUNs. I have tried 'googleing' but havent come across a good solution. So far the only way I have been able to resolve the issue is by rebooting but after few days it comes back again. Any help will be very appreciated.
Thanks in advance... Here is my system info: OS: Red Hat Enterprise Linux AS release 4 (Nahant Update 7) kernel: Linux 2.6.9-78.0.13.ELsmp iscsi-initiator-utils-4.0.3.0-7 device-mapper-multipath-0.4.5-31.el4 ================================================================= # sanlun lun show all filer: lun-pathname device filename adapter protocol lun size lun state xxx: /vol/lun115 /dev/sdm host2 iSCSI 150g (161061273600) GOOD xxx: /vol/lun118 /dev/sds host2 iSCSI 500.1g (536952700928) GOOD xxx: /vol/lun113 /dev/sdh host5 iSCSI 100g (107374182400) GOOD xxx: /vol/lun175 /dev/sdn host5 iSCSI 175g (187904819200) GOOD xxx: /vol/lun117 /dev/sdp host5 iSCSI 150g (161061273600) GOOD xxx: /vol/lun110 /dev/sdb host5 iSCSI 60g (64424509440) GOOD xxx: /vol/lun118 /dev/sdr host5 iSCSI 500.1g (536952700928) GOOD xxx: /vol/lun110 /dev/sdc host2 iSCSI 60g (64424509440) GOOD xxx: /vol/lun111 /dev/sdd host5 iSCSI 200g (214748364800) GOOD xxx: /vol/lun114 /dev/sdk host2 iSCSI 400.0g (429523992576) GOOD xxx: /vol/lun117 /dev/sdq host2 iSCSI 150g (161061273600) GOOD xxx: /vol/lun112 /dev/sdf host5 iSCSI 100g (107374182400) GOOD xxx: /vol/lun115 /dev/sdl host5 iSCSI 150g (161061273600) GOOD xxx: /vol/lun114 /dev/sdj host5 iSCSI 400.0g (429523992576) GOOD xxx: /vol/lun111 /dev/sde host2 iSCSI 200g (214748364800) GOOD ====================================================================== # multipath -ll mpath2 (360a98000486e6c764e6f4d724c466e37) [size=100 GB][features="1 queue_if_no_path"][hwhandler="0"] \_ round-robin 0 [prio=2][active] \_ 2:0:0:112 sdg 8:96 [failed][faulty] \_ 5:0:0:112 sdf 8:80 [active][ready] mpath1 (360a98000486e6c764e6f4d724d4c6844) [size=60 GB][features="1 queue_if_no_path"][hwhandler="0"] \_ round-robin 0 [prio=4][active] \_ 2:0:0:110 sdc 8:32 [active][ready] \_ 5:0:0:110 sdb 8:16 [active][ready] mpath0 (360a98000486e6c764e6f4d724d614233) [size=175 GB][features="1 queue_if_no_path"][hwhandler="0"] \_ round-robin 0 [prio=2][active] \_ 5:0:0:116 sdn 8:208 [active][ready] \_ 2:0:0:116 sdo 8:224 [failed][faulty] mpath8 (360a98000486e6c764e6f4d724c715a61) [size=500 GB][features="1 queue_if_no_path"][hwhandler="0"] \_ round-robin 0 [prio=4][active] \_ 2:0:0:118 sds 65:32 [active][ready] \_ 5:0:0:118 sdr 65:16 [active][ready] mpath7 (360a98000486e6c764e6f4d724d56674a) [size=150 GB][features="1 queue_if_no_path"][hwhandler="0"] \_ round-robin 0 [prio=4][active] \_ 2:0:0:115 sdm 8:192 [active][ready] \_ 5:0:0:115 sdl 8:176 [active][ready] mpath6 (360a98000486e6c764e6f4d724b623931) [size=200 GB][features="1 queue_if_no_path"][hwhandler="0"] \_ round-robin 0 [prio=4][active] \_ 2:0:0:111 sde 8:64 [active][ready] \_ 5:0:0:111 sdd 8:48 [active][ready] mpath5 (360a98000486e6c764e6f4d724b756372) [size=100 GB][features="1 queue_if_no_path"][hwhandler="0"] \_ round-robin 0 [prio=2][active] \_ 5:0:0:113 sdh 8:112 [active][ready] \_ 2:0:0:113 sdi 8:128 [failed][faulty] mpath4 (360a98000486e6c764e6f4d724d69326e) [size=150 GB][features="1 queue_if_no_path"][hwhandler="0"] \_ round-robin 0 [prio=4][active] \_ 5:0:0:117 sdp 8:240 [active][ready] \_ 2:0:0:117 sdq 65:0 [active][ready] mpath3 (360a98000486e6c764e6f4d724c576347) [size=400 GB][features="1 queue_if_no_path"][hwhandler="0"] \_ round-robin 0 [prio=4][active] \_ 5:0:0:114 sdj 8:144 [active][ready] \_ 2:0:0:114 sdk 8:160 [active][ready] ======================================================== #iscsi-ls -l ******************************************************************************* SFNet iSCSI Driver Version ...4:0.1.11-7(14-Apr-2008) ******************************************************************************* TARGET NAME : xxx TARGET ALIAS : show HOST ID : 2 BUS ID : 0 TARGET ID : 0 TARGET ADDRESS : xxx SESSION STATUS : ESTABLISHED AT Wed Nov 25 11:25:43 EST 2009 SESSION ID : ISID 00023d000001 TSIH 88 DEVICE DETAILS: --------------- LUN ID : 110 Vendor: NETAPP Model: LUN Rev: 0.2 Type: Direct-Access ANSI SCSI revision: 04 page83 type3: 60a98000486e6c764e6f4d724d4c6844 page80: 486e6c764e6f4d724d4c68440a Device: /dev/sdc LUN ID : 111 Vendor: NETAPP Model: LUN Rev: 0.2 Type: Direct-Access ANSI SCSI revision: 04 page83 type3: 60a98000486e6c764e6f4d724b623931 page80: 486e6c764e6f4d724b6239310a Device: /dev/sde LUN ID : 112 Vendor: NETAPP Model: LUN Rev: 0.2 Type: Direct-Access ANSI SCSI revision: 04 2:0:0:112: cannot open /dev/tmp-scsi-maj8-min96-19206: No such device or address page83 type0: 2:0:0:112: cannot open /dev/tmp-scsi-maj8-min96-19214: No such device or address page80: Device: /dev/sdg LUN ID : 113 Vendor: NETAPP Model: LUN Rev: 0.2 Type: Direct-Access ANSI SCSI revision: 04 2:0:0:113: cannot open /dev/tmp-scsi-maj8-min128-19228: No such device or address page83 type0: 2:0:0:113: cannot open /dev/tmp-scsi-maj8-min128-19236: No such device or address page80: Device: /dev/sdi LUN ID : 114 Vendor: NETAPP Model: LUN Rev: 0.2 Type: Direct-Access ANSI SCSI revision: 04 page83 type3: 60a98000486e6c764e6f4d724c576347 page80: 486e6c764e6f4d724c5763470a Device: /dev/sdk LUN ID : 115 Vendor: NETAPP Model: LUN Rev: 0.2 Type: Direct-Access ANSI SCSI revision: 04 page83 type3: 60a98000486e6c764e6f4d724d56674a page80: 486e6c764e6f4d724d56674a0a Device: /dev/sdm LUN ID : 116 Vendor: NETAPP Model: LUN Rev: 0.2 Type: Direct-Access ANSI SCSI revision: 04 2:0:0:116: cannot open /dev/tmp-scsi-maj8-min224-19294: No such device or address page83 type0: 2:0:0:116: cannot open /dev/tmp-scsi-maj8-min224-19302: No such device or address page80: Device: /dev/sdo LUN ID : 117 Vendor: NETAPP Model: LUN Rev: 0.2 Type: Direct-Access ANSI SCSI revision: 04 page83 type3: 60a98000486e6c764e6f4d724d69326e page80: 486e6c764e6f4d724d69326e0a Device: /dev/sdq LUN ID : 118 Vendor: NETAPP Model: LUN Rev: 0.2 Type: Direct-Access ANSI SCSI revision: 04 page83 type3: 60a98000486e6c764e6f4d724c715a61 page80: 486e6c764e6f4d724c715a610a Device: /dev/sds ******************************************************************************* TARGET NAME : xxx TARGET ALIAS : show HOST ID : 5 BUS ID : 0 TARGET ID : 0 TARGET ADDRESS : xxx SESSION STATUS : ESTABLISHED AT Thu Nov 26 02:16:38 EST 2009 SESSION ID : ISID 00023d000004 TSIH 89 DEVICE DETAILS: --------------- LUN ID : 110 Vendor: NETAPP Model: LUN Rev: 0.2 Type: Direct-Access ANSI SCSI revision: 04 page83 type3: 60a98000486e6c764e6f4d724d4c6844 page80: 486e6c764e6f4d724d4c68440a Device: /dev/sdb LUN ID : 111 Vendor: NETAPP Model: LUN Rev: 0.2 Type: Direct-Access ANSI SCSI revision: 04 page83 type3: 60a98000486e6c764e6f4d724b623931 page80: 486e6c764e6f4d724b6239310a Device: /dev/sdd LUN ID : 112 Vendor: NETAPP Model: LUN Rev: 0.2 Type: Direct-Access ANSI SCSI revision: 04 page83 type3: 60a98000486e6c764e6f4d724c466e37 page80: 486e6c764e6f4d724c466e370a Device: /dev/sdf LUN ID : 113 Vendor: NETAPP Model: LUN Rev: 0.2 Type: Direct-Access ANSI SCSI revision: 04 page83 type3: 60a98000486e6c764e6f4d724b756372 page80: 486e6c764e6f4d724b7563720a Device: /dev/sdh LUN ID : 114 Vendor: NETAPP Model: LUN Rev: 0.2 Type: Direct-Access ANSI SCSI revision: 04 page83 type3: 60a98000486e6c764e6f4d724c576347 page80: 486e6c764e6f4d724c5763470a Device: /dev/sdj LUN ID : 115 Vendor: NETAPP Model: LUN Rev: 0.2 Type: Direct-Access ANSI SCSI revision: 04 page83 type3: 60a98000486e6c764e6f4d724d56674a page80: 486e6c764e6f4d724d56674a0a Device: /dev/sdl LUN ID : 116 Vendor: NETAPP Model: LUN Rev: 0.2 Type: Direct-Access ANSI SCSI revision: 04 page83 type3: 60a98000486e6c764e6f4d724d614233 page80: 486e6c764e6f4d724d6142330a Device: /dev/sdn LUN ID : 117 Vendor: NETAPP Model: LUN Rev: 0.2 Type: Direct-Access ANSI SCSI revision: 04 page83 type3: 60a98000486e6c764e6f4d724d69326e page80: 486e6c764e6f4d724d69326e0a Device: /dev/sdp LUN ID : 118 Vendor: NETAPP Model: LUN Rev: 0.2 Type: Direct-Access ANSI SCSI revision: 04 page83 type3: 60a98000486e6c764e6f4d724c715a61 page80: 486e6c764e6f4d724c715a610a Device: /dev/sdr ================================================================= -- You received this message because 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