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October 17th, 2016 19:00
ScaleIO 2.0.1.0 - version mismatch in IM Query Phase
Hello,
I'm facing some problems with IM while adding a Windows SDC to an existing ScaleIO system.
Currently we have linux servers that acts as MDM and SDS and a single windows SDC. When I try to add another SDC from the IM it is performed a query phase and is detected a mismatch of the packages versions installed on the nodes. This is due to the fact that the version of the LIA package for linux distributed in the file ScaleIO_2.0.1.0_Complete_Software_Download.zip is 2.0-10000.2072 while for windows is 2.0-10000.2075.
I had no problem adding the first SDC because during the query phase I had the LIA installed only on the three linux servers so the check succeeded. Now it is impossible to use "Add to existing sys" feature of IM because the query phase fails systematically because of the LIA package version mismatch.
Probably it is possible to workaround the problem uninstalling LIA package from the Windows server of the currently working SDC node so the query phase succeed, the LIA package then is reinstalled on this node and freshly installed on the new one. But this can be considered a possible workaround and not a solution,
I didn't find an older windows LIA version in the download section of the support portal. Someone can help us to find a better way to solve this problem or someone at EMC can fix the version mismatch in the packages distributed?
Thanks in Advance,
Davide
pawelw1
306 Posts
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October 18th, 2016 07:00
Hi Davide,
We well check the build numbers and see if that can be fixed - but as per Deployment Guide, when you extend the ScaleIO system with a new element, all the packages (including LIA and SDC) will be pushed to it from the IM - can you clarify whether your Windows host already had LIA and SDC installed manually? Can you see this problem if you simply upload appropriate .msi packages to the IM and try to add a "clean" Windows system to the cluster?
Thanks!
Pawel
c0redump
68 Posts
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October 18th, 2016 09:00
Hi Pawel,
the installation was performed completely from IM.
The three linux hosts are Ubuntu Linux 16.04 (MDM Primary + SDS, MDM Slave + SDS, TB + SDS)
The SDC are two Windows 2012 R2
The package uploaded to the gateway were all taken from the official distribution package ScaleIO_2.0.1.0_Complete_Software_Download.zip downloaded from support.emc.com.
The first step performed from the gateway was the installation a new system with a complete CSV. The CSV was configured only to deploy packages/roles on the three Linux hosts.
The second step performed from the gateway was an "add to existing sys" of the first Windows SDC. That operation succeeded because the query phase check the available infrastructure and the LIA on the three windows hosts is at the same version. During this step is deployed the version mismatched LIA package to the windows host + SDC.
The third step was an "add to existing sys" of the second SDC. That operation fails because during the query phase the actually installed components are checked and the version of the LIA of the Linux hosts differs from the LIA version of the SDC installed at the second step.
That happens because in the package ScaleIO_2.0.1.0_Complete_Software_Download.zip there is a version mismatch of ScaleIO linux packages (version: 2.0-10000.2072) from the Windows (version: 2.0-10000.2075). All the ScaleIO components inside the Windows package seems newer than the Linux ones. During the query phase the LIA version is checked against all (already) deployed nodes and if there is a difference the deployment stops.
As a workaround I uninstalled manually the LIA on the Windows host added at the second step (leaving SDC installed) so the query phase succeeded (because LIA is installed only on the three Linux hosts). At this point the LIA package is redeployed on the Windows SDC added at the second step while on the new Windows SDC is deployed the LIA package + the SDC package.
Fixing the version of the packages inside the distribution package (ScaleIO_2.0.1.0_Complete_Software_Download.zip) will surely solve this problem.
Thanks for your lighting fast reply!
Davide
pawelw1
306 Posts
0
October 19th, 2016 00:00
Hi Davide,
Thanks a lot for bringing this up - let me see what we can do to fix it...
Cheers,
Pawel
pawelw1
306 Posts
0
October 20th, 2016 07:00
Hi Davide,
I spoke with the Dev - for the time being I am afraid you will need to stick to the workaround (uninstall LIA whenever you want to extend the cluster with a Windows box - given the rest of it is running on Linux).
This behavior will be fixed in the newer ScaleIO versions - either by some IM GW configuration variable or simply by matching the build numbers, but for now it is what it is...
Thanks again!
Pawel