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ScaleIO RAM CAHCE limits
Hello, was anyone able to setup more than 49GB or RAM Cache memory ?
Our SDS nodes have 128 GB of RAM , and according documentation :
The amount of RAM you can allocate for cache is limited by the amount of RAM on the
SDS server:
◆ If the RAM is less than 32 GB, 50% of memory can be used for cache
◆ If the RAM is more than 32 GB, 75% of memory can be used for cache
But we cannot set value bigger than 49GB.
Thanks,
Matas
pawelw1
306 Posts
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September 27th, 2016 05:00
Hi Matas,
Can you please have a look at this KB and tell us if that's the case, do you have NUMA enabled and each "node" holds part of the RAM memory?
https://support.emc.com/kb/463700
Many thanks,
Pawel
Matas1
22 Posts
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September 27th, 2016 05:00
Hello, yes this is our case. it works exactly as per document.
however: Our ScaleIO version is 2.0.0.2
so it means design of using only one NUMA node isn't changed from 1.3 version ?
pawelw1
306 Posts
0
September 27th, 2016 07:00
Hi Matas,
From what I see in ScaleIO 2.0 User Guide it's the same as in the KB I mentioned - it _might_ change in 2.0.1 or 2.1, but that's just a wish, I don't really know what's the roadmap for this...
Cheers,
Pawel