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From "Muhammad Faisal" <>
Subject Re: RAM to Disk Cache Ratio
Date Sun, 20 Mar 2016 17:42:29 GMT
Hi Leif,
Thanks for your expert opinion.


------ Original Message ------
From: "Leif Hedstrom" <>
To:; "Muhammad Faisal" 
Sent: 3/20/2016 12:33:04 AM
Subject: Re: RAM to Disk Cache Ratio

>>On Mar 18, 2016, at 6:04 AM, Muhammad Faisal <> 
>>I have allocated 2T for Cache and 10G as RAM cache. As per docs there 
>>is 10MB of RAM required for 1GB of disk space. But in my case all 10G 
>>is used up early. Is this normal? Can someone please guide on this.
>If you configured 10GB of RAM cache, it will consume that (at least). 
>I’m not sure what the 10Mb of RAM / 1GB of disk space comes from, I 
>think that’s the default for the RAM cache if you specify it as -1. If 
>you have specified a 10GB RAM cache, then that’s what you get.
>In addition, you will consume 1MB of RAM per GB of disk cache, for the 
>directory entries (but that also depends on 
>— Leif
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