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тАО12-01-2011 09:41 AM
тАО12-01-2011 09:41 AM
Adding extra memory to vsa
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- vsa cache memory
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тАО12-01-2011 05:31 PM
тАО12-01-2011 05:31 PM
Re: Adding extra memory to vsa
I did. It definitely doesn't use all available memory. I think I heard somewhere on the forum that it uses a fixed size in proportion to the total HDD size.
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тАО12-02-2011 01:34 PM
тАО12-02-2011 01:34 PM
Re: Adding extra memory to vsa
Hi,
The size of RAM depends of the amount of disks behind the VSA...
Recommendations are:
1GB RAM up to 4,5 TB of disks
2GB RAM from 4,5 up to 9 TB
3GB RAM from 9 to the max supported 10 TB...
More details in theP4000 VSA Installation and Configuration Guide
http://bizsupport2.austin.hp.com/bc/docs/support/SupportManual/c01727958/c01727958.pdf
Kr,
Bart
If my post was useful, clik on my KUDOS! "White Star" !
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тАО12-02-2011 02:38 PM
тАО12-02-2011 02:38 PM
Re: Adding extra memory to vsa
I know those numbers but for as i know saniq needs that amount of memory to function properly. My question is: does saniq use extra memory assigned for caching of blocks or not? (Does it increase the cache hit rate?)
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тАО12-02-2011 10:09 PM
тАО12-02-2011 10:09 PM
Re: Adding extra memory to vsa
Hi,
Not as far as I know... Never tested it yet...
I assume it is not since the VSA uses the virtual storage controller provided by VMware or Hyper-V and that's it...
Kr,
Bart
If my post was useful, clik on my KUDOS! "White Star" !
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тАО12-04-2011 06:44 AM
тАО12-04-2011 06:44 AM
Re: Adding extra memory to vsa
it definitely does not.
because I setup a VSA only host, I had a bunch of spare memory and just assigned it to the VSAs because I figured I would try. they run at a constant memory allocation and for an 850GB VSA, that runs 3.55GB memory w/ 2.77GB+ free. I also have a 1.3TB VSA with 2.88GB memory that has 1.96GB free memory.
I assume if you put in a 10TB VSA it will use more memory, but it definitely does not CACHE with the free memory... I'm using Hyper-V so I figure the best way to get that is simply keep the memory free on the host... not ideal, but better than nothing.
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тАО12-10-2011 11:32 AM
тАО12-10-2011 11:32 AM