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Login to slave MDM
If a primary MDM goes down, how do I login to the slave using the GUI? I cannot login to the slave when the primary is up.
This post is more than 5 years old
12 Posts
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4193
If a primary MDM goes down, how do I login to the slave using the GUI? I cannot login to the slave when the primary is up.
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dfelt1
34 Posts
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April 19th, 2016 14:00
Hello andan02,
I see what you are asking, You use the master IP or the name for the MDM cluster to log in. When the master goes down, then you can log into the slave via IP or Name of the MDM cluster. When the master comes back up, you can do a CLI switch master command to go back to the original master or stay with your slave which is now the new master and let the old master become the slave for the MDM cluster.
You cannot access the slave via SCLI or GUI if the master MDM is still up.
Thank you,
G. David Felt
EMC ETD Technical Marketing Engineer
EMC²| Emerging Technologies Division
Office: +1 206-753-1654
Email: david.felt@emc.com
dfelt1
34 Posts
0
April 19th, 2016 09:00
When the MDM Master goes down, you then log into the GUI by stating the Slave IP plus credentials.
Thank you,
G. David Felt
EMC ETD Technical Marketing Engineer
EMC²| Emerging Technologies Division
Office: +1 206-753-1654
Email: david.felt@emc.com
dfelt1
34 Posts
0
April 19th, 2016 10:00
For 2.0 ScaleIO, I am able to log into my cluster with either MDM IP just fine.
Thank you,
G. David Felt
EMC ETD Technical Marketing Engineer
EMC²| Emerging Technologies Division
Office: +1 206-753-1654
Email: david.felt@emc.com
andan02
12 Posts
0
April 19th, 2016 10:00
Your stating that the slave ip will not accept logins until the master goes down?
andan02
12 Posts
0
April 19th, 2016 13:00
Mine does not allow me to login with the GUI. What can I try with scli to determine what the problem is?
[root@css-c-sdlc-021 ~]# scli --login --mdm_ip 10.202.46.31 --username admin --password admin
Error: Failed to connect to MDM 10.202.46.31:6611
on the 46.31 node
[root@css-c-sdlc-022 logs]# netstat -apn | grep 6611
tcp 0 0 10.202.46.31:34123 10.202.46.30:6611 ESTABLISHED -
its talking to the primary, but its not listening on 6611 - best I can tell. So logging into secondary doesn't sound like it will work.
dfelt1
34 Posts
0
April 19th, 2016 13:00
Hello andan02,
I should have started off with this question, what version of ScaleIO are you using? There are changes between 1.3x.x and 2.0.
Thank you,
G. David Felt
EMC ETD Technical Marketing Engineer
EMC²| Emerging Technologies Division
Office: +1 206-753-1654
Email: david.felt@emc.com
andan02
12 Posts
0
April 19th, 2016 13:00
2.0
andan02
12 Posts
0
April 21st, 2016 07:00
You are correct. I failed the primary and was able to login to the secondary. Thank you. Solved.