We are in the process of migrating from 7-mode to cdot 8.3 with FAS filers installed in 3 sites. We need to run snapmirror between A-B site and B-C site. There are dedicated cross site links between A-B site and B-C site for replication, they are on different subnets and are not routable due to physical limitation. With 7-mode snapmirror ran fine as we could just setup snapmirror to use the specific IP for replication.
However we are having difficulties setting up cluster peering in 8.3 cdot. In B site, we first set up one set of LIFs for replication to A site, and formed peer cluster with A site successfully. We then set up the LIFs for replication to C site, and tried to form cluster peer with C site. On C site it could complete the cluster peer create command, but on B site it failed with below error:
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b-ntap01::cluster peer> create -peer-addrs 10.0.9.156,10.0.9.157
Notice: Choose a passphraseof 8 or more characters. To ensure the authenticity of the peering relationship, use a phrase or sequence of characters that would be hard
to guess.
Enter the passphrase:
Confirm the passphrase:
Error: command failed: An introductory RPC to the peer address "10.0.9.156" failed to connect: RPC: Remote system error - No route to host. Verify that the peer address is correct and try again.
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network interface show output is as follows:
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b-ntap01::> network interface show -role intercluster
Logical Status Network Current Current Is
Vserver Interface Admin/Oper Address/Mask Node Port Home
----------- ---------- ---------- ------------------ ------------- ------- ----
b-ntap01
b-ntap01a-repa
up/up 10.0.8.184/25 b-ntap01-01 a0c true
b-ntap01a-repc
up/up 10.0.9.26/25 b-ntap01-01 a0f true
b-ntap01b-repa
up/up 10.0.8.185/25 b-ntap01-02 a0c true
b-ntap01b-repc
up/up 10.0.9.27/25 b-ntap01-02 a0f true
4 entries were displayed.
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We have verified that B site can ping A site and C site successfully. We have also verified that if we delete the LIFs for replication to A site and only set up those for C site, we can successfully form a cluster peer between B site and C site.
cluster peer ping result is as follows. It seems that it couldn't even ping its own LIF.
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b-ntap01::> cluster peer ping
Node: b-ntap01-01 Destination Cluster: a-ntap01
Destination Node IP Address Count TTL RTT(ms) Status
---------------- ---------------- ----- ---- ------- -------------------------
a-ntap01-01 10.0.8.54 1 253 0.915 interface_reachable
a-ntap01-02 10.0.8.55 1 253 0.922 interface_reachable
Node: b-ntap01-01 Destination Cluster: b-ntap01
Destination Node IP Address Count TTL RTT(ms) Status
---------------- ---------------- ----- ---- ------- -------------------------
b-ntap01-01 10.0.8.184 1 255 0.128 interface_reachable
b-ntap01-01 10.0.9.26 1 - - unreachable
b-ntap01-02 10.0.8.185 1 255 0.457 interface_reachable
b-ntap01-02 10.0.9.27 1 - - unreachable
Node: b-ntap01-02 Destination Cluster: a-ntap01
Destination Node IP Address Count TTL RTT(ms) Status
---------------- ---------------- ----- ---- ------- -------------------------
a-ntap01-01 10.0.8.54 1 253 0.688 interface_reachable
a-ntap01-02 10.0.8.55 1 253 0.676 interface_reachable
Node: b-ntap01-02 Destination Cluster: b-ntap01
Destination Node IP Address Count TTL RTT(ms) Status
---------------- ---------------- ----- ---- ------- -------------------------
b-ntap01-01 10.0.8.184 1 255 0.2 interface_reachable
b-ntap01-01 10.0.9.26 1 - - unreachable
b-ntap01-02 10.0.8.185 1 255 0.092 interface_reachable
b-ntap01-02 10.0.9.27 1 - - unreachable
12 entries were displayed.
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So is it possible to form the cluster peer relationship between B and C site in our case?
