Skip to main content
NetApp Knowledge Base

SM-BC destination cluster LUNs not connected to Linux host

Views:
39
Visibility:
Public
Votes:
0
Category:
ontap-9
Specialty:
san
Last Updated:

Applies to

  • ONTAP 9
  • SnapMirror Business Continuity (SM-BC)
  • Linux Unified Host Utilities (LUHU)
  • iSCSI
  • CentOS 7

Issue

  • SM-BC destination LUNs are mapped to the correct igroup in ONTAP.
  • multipath -ll shows half of the expected paths on the host, in this case 4 of 8:

3600a0980774f6a34495d544d47387373 dm-2 NETAPP  ,LUN C-Mode
size=10G features='4 queue_if_no_path pg_init_retries 50 retain_attached_hw_handle' hwhandler='1 alua' wp=rw
|-+- policy='service-time 0' prio=50 status=active
| |- 33:0:0:10 sdb 8:16 active ready running
| `- 39:0:0:10 sdd 8:48 active ready running
`-+- policy='service-time 0' prio=10 status=enabled
  |- 38:0:0:10 sdc 8:32 active ready running
  `- 40:0:0:10 sde 8:64 active ready running

  • LUHU's sanlun lun show -p only shows paths to LIFs on source cluster:

                    ONTAP Path: svm_linux:/vol/centos1/centos1_1
                           LUN: 10
                      LUN Size: 10g
                       Product: cDOT
                   Host Device: 3600a0980774f6a34495d544d47387373
              Multipath Policy: service-time 0
            Multipath Provider: Native
--------- ---------- ------- ------------ ----------------------------------------------
host      vserver
path      path       /dev/   host         vserver
state     type       node    adapter      LIF
--------- ---------- ------- ------------ ----------------------------------------------
up        primary    sdb     host33       lif_svm_linux_1
up        primary    sdd     host39       lif_svm_linux_2
up        secondary  sdc     host38       lif_svm_linux_4
up        secondary  sde     host40       lif_svm_linux_3

  • ISCSI-SESSION-BRIEF.XML, or vserver iscsi session show, has no iSCSI sessions from the host on the destination cluster.

Sign in to view the entire content of this KB article.

New to NetApp?

Learn more about our award-winning Support

NetApp provides no representations or warranties regarding the accuracy or reliability or serviceability of any information or recommendations provided in this publication or with respect to any results that may be obtained by the use of the information or observance of any recommendations provided herein. The information in this document is distributed AS IS and the use of this information or the implementation of any recommendations or techniques herein is a customer's responsibility and depends on the customer's ability to evaluate and integrate them into the customer's operational environment. This document and the information contained herein may be used solely in connection with the NetApp products discussed in this document.