Talk with fellow users about the multiple protocols supported by NetApp unified storage including SAN, NAS, CIFS/SMB, NFS, iSCSI, S3 Object, Fibre-Channel, NVMe, and FPolicy.
Talk with fellow users about the multiple protocols supported by NetApp unified storage including SAN, NAS, CIFS/SMB, NFS, iSCSI, S3 Object, Fibre-Channel, NVMe, and FPolicy.
Hello all, I've been struggling to setup multipathing on an iSCSI boot LUN so after many days banging my head against a brick wall, I'm hoping somebody can point me in the right direction. Our development setup is as follows: FAS8200 running ONTAP 9.13.1P13 Cisco UCS X210c M7 blade server Oracle Linux 8.10 running 5.15.0-209.161.7.1.el8uek.x86_64 kernel Installation was fine, once I added ip=ibft to the boot command. I have setup two interfaces on the host and two on the FAS8200 vserver to cater for iSCSI and have established four paths: [root@vmhost-dev-b-02 ~]# iscsiadm --mode session tcp: [1] 10.31.5.101:3260,1026 iqn.1992-08.com.netapp:sn.c052244ddc6a11eeb08a00a098d45a03:vs.7 (non-flash) tcp: [2] 10.31.6.102:3260,1031 iqn.1992-08.com.netapp:sn.c052244ddc6a11eeb08a00a098d45a03:vs.7 (non-flash) tcp: [3] 10.31.6.101:3260,1030 iqn.1992-08.com.netapp:sn.c052244ddc6a11eeb08a00a098d45a03:vs.7 (non-flash) tcp: [4] 10.31.5.102:3260,1027 iqn.1992-08.com.netapp:sn.c052244ddc6a11eeb08a00a098d45a03:vs.7 (non-flash) I can see those sessions are logged on from the filer: fas8200a::> iscsi session show -vserver vsbidev1 -initiator-name iqn.2022-10.uk.ac.lboro:site-dev-b-iscsi-a:2 Tpgroup Initiator Initiator Vserver Name TSIH Name ISID Alias --------- ------- ---- ------------------------ --------- --------------------- vsbidev1 vsbidev1-01-a 2 iqn.2022-10.uk.ac.lboro:site-dev-b-iscsi-a:2 00:02:3d:00:00:01 vmhost-dev-b-02.lboro.ac.uk vsbidev1 vsbidev1-01-b 5 iqn.2022-10.uk.ac.lboro:site-dev-b-iscsi-a:2 00:02:3d:00:00:03 vmhost-dev-b-02.lboro.ac.uk vsbidev1 vsbidev1-02-a 2 iqn.2022-10.uk.ac.lboro:site-dev-b-iscsi-a:2 00:02:3d:00:00:04 vmhost-dev-b-02.lboro.ac.uk vsbidev1 vsbidev1-02-b 1 iqn.2022-10.uk.ac.lboro:site-dev-b-iscsi-a:2 00:02:3d:00:00:02 vmhost-dev-b-02.lboro.ac.uk 4 entries were displayed. Using NetApp's Linux Host Utilities I can see the LUN and four paths: [root@vmhost-dev-b-02 ~]# sanlun lun show controller(7mode/E-Series)/ device host lun vserver(cDOT/FlashRay) lun-pathname filename adapter protocol size product ---------------------------------------------------------------------------------------------------------- vsbidev1 /vol/vmhost_dev_b_02/rocky-dev-b-02 /dev/sdd host6 iSCSI 100g cDOT vsbidev1 /vol/vmhost_dev_b_02/rocky-dev-b-02 /dev/sdc host5 iSCSI 100g cDOT vsbidev1 /vol/vmhost_dev_b_02/rocky-dev-b-02 /dev/sdb host4 iSCSI 100g cDOT vsbidev1 /vol/vmhost_dev_b_02/rocky-dev-b-02 /dev/sda host3 iSCSI 100g cDOT But multipath refuses to see these devices as multipath devices: [root@vmhost-dev-b-02 ~]# multipath -l -v 3 Feb 13 14:26:14 | set open fds limit to 4096/262144 Feb 13 14:26:14 | loading /lib64/multipath/libchecktur.so checker Feb 13 14:26:14 | checker tur: message table size = 3 Feb 13 14:26:14 | loading /lib64/multipath/libprioconst.so prioritizer Feb 13 14:26:14 | foreign library "nvme" loaded successfully Feb 13 14:26:14 | sda: size = 209715200 Feb 13 14:26:14 | sda: vendor = NETAPP Feb 13 14:26:14 | sda: product = LUN C-Mode Feb 13 14:26:14 | sda: rev = 9131 Feb 13 14:26:14 | sda: h:b:t:l = 3:0:0:0 Feb 13 14:26:14 | sda: tgt_node_name = iqn.1992-08.com.netapp:sn.c052244ddc6a11eeb08a00a098d45a03:vs.7 Feb 13 14:26:14 | sdb: size = 209715200 Feb 13 14:26:14 | sdb: vendor = NETAPP Feb 13 14:26:14 | sdb: product = LUN C-Mode Feb 13 14:26:14 | sdb: rev = 9131 Feb 13 14:26:14 | sdb: h:b:t:l = 4:0:0:0 Feb 13 14:26:14 | sdb: tgt_node_name = iqn.1992-08.com.netapp:sn.c052244ddc6a11eeb08a00a098d45a03:vs.7 Feb 13 14:26:14 | sdc: size = 209715200 Feb 13 14:26:14 | sdc: vendor = NETAPP Feb 13 14:26:14 | sdc: product = LUN C-Mode Feb 13 14:26:14 | sdc: rev = 9131 Feb 13 14:26:14 | sdc: h:b:t:l = 5:0:0:0 Feb 13 14:26:14 | sdc: tgt_node_name = iqn.1992-08.com.netapp:sn.c052244ddc6a11eeb08a00a098d45a03:vs.7 Feb 13 14:26:14 | sdd: size = 209715200 Feb 13 14:26:14 | sdd: vendor = NETAPP Feb 13 14:26:14 | sdd: product = LUN C-Mode Feb 13 14:26:14 | sdd: rev = 9131 Feb 13 14:26:14 | sdd: h:b:t:l = 6:0:0:0 Feb 13 14:26:14 | sdd: tgt_node_name = iqn.1992-08.com.netapp:sn.c052244ddc6a11eeb08a00a098d45a03:vs.7 Feb 13 14:26:14 | dm-0: device node name blacklisted Feb 13 14:26:14 | dm-1: device node name blacklisted Feb 13 14:26:14 | dm-2: device node name blacklisted ===== paths list ===== uuid hcil dev dev_t pri dm_st chk_st vend/prod/rev dev_st 3:0:0:0 sda 8:0 -1 undef undef NETAPP,LUN C-Mode unknown 4:0:0:0 sdb 8:16 -1 undef undef NETAPP,LUN C-Mode unknown 5:0:0:0 sdc 8:32 -1 undef undef NETAPP,LUN C-Mode unknown 6:0:0:0 sdd 8:48 -1 undef undef NETAPP,LUN C-Mode unknown Feb 13 14:26:14 | libdevmapper version 1.02.181-RHEL8 (2021-10-20) Feb 13 14:26:14 | DM multipath kernel driver v1.14.0 Feb 13 14:26:14 | unloading const prioritizer Feb 13 14:26:14 | unloading tur checker I suspect the issue has something to do with the fact that root is sitting on this disk which is preventing is being changed. I've read suggestions that I need to enable multipathing at boot time and change the paths to the various partitions but I'm not sure if that will work or not. Any help or guidance would be gratefully received. Regards, Mark
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hello and sorry for my english, I have to create a new file server. I want to create server in windows server 2022 but for the share files i want to mount drive D to Netapp where will be the storage of files. I want to do like this because i want to have functionnality i use on Netapp (snapshot, fabricPool, snapmirror...). But i don't know what it the best to mount the volume. I don't want to mount with NFS because it native on windows now but not very good. I want to mount and manage file sharing with NTFS rights directly from windows. So i have ISCSI or SMB (CIFS). What is the best for you for what i want to do ? thanks a lot
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I want to discontinue linux style filesystems on my netapp cluster. When i change the security style of a qtree from linux to ntfs, the underlaying directories are not changed. Is this not possible with netapp tooling? (I can copy the data with rsync/robocopy with a mapped user, but that is time consuming)
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We're repeatedly receiving the following error messages: None of the LSA servers configured for Vserver (x) are currently accessible via the network. Run vserver cifs domain discovered-servers show to see the list of discovered servers. Also, check EMS event log to see the possible cause of errors on these servers. Alert Received on: Tue Jan 21 2025 6:40 AM. We received these error messages 2 years ago (Solved: Issues creating Active Directory entries and vservers - NetApp Community) , and we believe it might be a bug. Please advise
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Hi, do any of you know if Ontap supports the BFD Protocol? https://en.m.wikipedia.org/wiki/Bidirectional_Forwarding_Detection The documentation provided in the link below suggests using aggressive timers to detect fallouts but as far as I can tell the using BFD is a much more elegant solution to this problem. https://www.netapp.com/media/79703-TR-4949.pdf Thank you in advance for any feedback and comments on this. - Jonar
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