NetApp CIFS share failover to dr replication partner: Difference between revisions
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In this example we replicate a CIFS share from the source NetApp to a DR NetApp, details below: | In this example we replicate a CIFS share from the source NetApp to a DR NetApp, details below: | ||
<pre> | <pre> | ||
[------------] | [------------------------------] [------------------------------] | ||
| | | Source | | DR END | | ||
| | | | | | | ||
| | | Hostname: NetApp001 | >>>>>>>_____________________\`-._ | Hostname: NetApp002 | | ||
| | | SVM Name: netappsvm001_files | >>>>>>> /.-' | SVM Name: netappsvm002_files | | ||
[------------] | | Alias: fileserver01 | | Alias: fileserver02 | | ||
| | | | | |||
[------------------------------] [------------------------------] | |||
</pre> | </pre> | ||
==Failover== | ==Failover== | ||
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*Break the replication of the share on the DR NetApp. | *Break the replication of the share on the DR NetApp. | ||
*Browse the share at the DR end to make sure its writable. | *Browse the share at the DR end to make sure its writable (\\fileserver02). | ||
*Repoint DNS so (in this example) fileserver01 now points to the DR NetApp. | *Repoint DNS so (in this example) fileserver01 now points to the DR NetApp. | ||
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*Re start and re sync replication | *Re start and re sync replication | ||
[[Category:NetApp]] | |||
[[Category:CIFS]] | |||
<comments /> |
Latest revision as of 10:05, 20 March 2022
In this example we replicate a CIFS share from the source NetApp to a DR NetApp, details below:
[------------------------------] [------------------------------] | Source | | DR END | | | | | | Hostname: NetApp001 | >>>>>>>_____________________\`-._ | Hostname: NetApp002 | | SVM Name: netappsvm001_files | >>>>>>> /.-' | SVM Name: netappsvm002_files | | Alias: fileserver01 | | Alias: fileserver02 | | | | | [------------------------------] [------------------------------]
Failover
- Stop the CIFS server on source NetApp:
vserver cifs stop -vserver netappsvm001_files
- Remove the netbios alias (if one exists) on source NetApp:
vserver cifs remove-netbios-aliases -vserver netappsvm001_files -netbios-aliases fileserver01
- Break the replication of the share on the DR NetApp.
- Browse the share at the DR end to make sure its writable (\\fileserver02).
- Repoint DNS so (in this example) fileserver01 now points to the DR NetApp.
- Flush DNS cache then ping fileserver01 and make sure it resolves to the DR IP address.
- Add netbios alias at DR end (the client may need to reboot before this works):
vserver cifs add-netbios-aliases -vserver netappsvm002_files -netbios-aliases fileserver01
- Re-assign the SPNs on fileserver01 AD account, this must be carried out on a Windows machine with rights to update the computer object for the NetApp CIFS server:
setspn -D HOST\fileserver01 netapp001 setspn -D HOST\fileserver01.somedomain.com netapp001 setspn -D CIFS\fileserver01 netapp001 setspn -D CIFS\fileserver01.somedomain.com netapp001 setspn -S HOST\fileserver01 netapp002 setspn -S HOST\fileserver01.somedomain.com netapp002 setspn -S CIFS\fileserver01 netapp002 setspn -S CIFS\fileserver01.somedomain.com netapp002
Failback
- Remove netbios alias from DR NetApp:
vserver cifs remove-netbios-aliases -vserver netappsvm002_files -netbios-aliases fileserver01
- Repoint DNS so (in this example) fileserver01 now points to the source NetApp.
- Add netbios alias back on the source NetApp:
vserver cifs add-netbios-aliases -vserver netappsvm001_files -netbios-aliases fileserver01
- Start the CIFS server on the source NetApp:
vserver cifs start -vserver netappsvm001_files
- Re-assign the SPNs on fileserver01 AD account, this must be carried out on a Windows machine with rights to update the computer object for the NetApp CIFS server:
setspn -D HOST\fileserver01 netapp002 setspn -D HOST\fileserver01.somedomain.com netapp002 setspn -D CIFS\fileserver01 netapp002 setspn -D CIFS\fileserver01.somedomain.com netapp002 setspn -S HOST\fileserver01 netapp001 setspn -S HOST\fileserver01.somedomain.com netapp001 setspn -S CIFS\fileserver01 netapp001 setspn -S CIFS\fileserver01.somedomain.com netapp001
- Re start and re sync replication
<comments />