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Lag between SYMCLI and SMC?
Hi,
I am new to the Symmetrix environment (VMAX-1, Enginuity 5875.249.188) and just trying to learn the basics at the moment. One thing a colleague of mine and I noticed is that the information available immediately upon execution of a command or task completion in SYMCLI does not show up in SMC. For example, in SYMCLI, using a Solutions Enabler, I just created 4 thin devices, bound them into a Meta and presented the new Meta to a host's storage group. The host sees the new LUN, able to use it w/o an issue. However when browsing the SG for this host in the SMC, the new LUN is not showing up. I was thinking there is some sort of a lag in refreshing the SMC, but almost 24 hrs later the new LUN is still not showing.
What could be the reasons for this and how can I make sure the info in SMC and CLI is in sync?
Thanks
Sergey
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Posted May 25th, 2012 02:00
Yes, SMC does polling and try to keep itself updated with the Symm Configuration but there are few things in SMC which may differ from SE. Since you are at 5875.249 code, I am assuming the SMAS version is 7.3.2 and higher? If SMC is at lower version then you can upgrade to this version as we have made lots of performance changes in 7.3.2.2
regards,
Saurabh
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Posted May 25th, 2012 07:00
Saurabh,
The version of the SMC we are using is 7.3.2.2
Thanks
Sergey
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Posted May 25th, 2012 07:00
Amita,
I did try hitting the refresh button multiple times and attempting to switch between viewing different storage groups in hopes that it would refresh the contents of the SG I was interested in. That did not help.
Sergey
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Posted May 25th, 2012 10:00
i have the same issue with SPA, i create new device groups or add new devices to an existing group, SMC nor SPA show the changes.
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Posted May 28th, 2012 00:00
There are is one assumption I have to make to try to answer this.
1. Given that you can upgrade SMC/SPA you are running it on your own host not the VMAX SP.
Device groups are local to the host, unless using GNS. Test that the device is visible on the SMC host in the device group by running symdg show . I usually see a lag in the device group appearing in SMC/SPA that can be a coupel of hours. Try a symcfg discover to see if that triggers SMC into discovery or restart SMC/SPA
SPA will not record any stats for RDF2 device groups. You need to have RDF1 type device groups on the host where SPA is running.
HTH
Simon
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Posted May 29th, 2012 04:00
Hi There
In SMC try a discover that should update SYMAPI DB and SMC.
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Posted May 29th, 2012 05:00
i've tried symcfg discover and every other possible option in SMC, the only way for me to update my device groups is to restart SMC/SPA service
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Posted May 30th, 2012 06:00
Yep. Pretty much.
Create everything from SMC nowadays.
Clean quick efficient.
Faster than CLI in some cases.
Shows up immidiatley
Only use CLI when I want to drill deep on a drive or RDF issue.
Mind you I have re-read the title
.
Next time I will create my DG then add devices via CLI.
Check when they show in SMC.
432
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Posted May 30th, 2012 06:00
updating device groups (not storage groups) on the fly and see it imediatly in SMC/SPA ?
Amita2
93 Posts
630
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Posted May 25th, 2012 00:00
Hi,
What is the SMC and SE version you are using?
You can perform a Refresh from the Symmetrix Management Console to get updates..
Regards
Amita