Synology memory cache with block iSCSI

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Synology memory cache with block iSCSI

Postby Pentangle » Sun Jan 10, 2016 8:19 pm

Hi all,

I'm using a RS2212RP+ solely as a block-based iSCSI storage. i.e. i've not enabled any file-based services etc.

On the resource monitor, with 1gb memory in the box I am seeing only 127.6mb cached and a whopping 620.3mb free. I thought Synology boxes used their spare RAM to cache the IO? (you can see it in another of the threads here) or is that solely the preserve of the file-based iSCSI and NFS protocols?
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Re: Synology memory cache with block iSCSI

Postby vihai » Mon Sep 05, 2016 2:35 pm

Hi, I'm seeing the same behaviour. I have 6 GB of RAM and only serving as iSCSI target and after a while I only see 170 MB of RAM being used as cache. 5+ GB are still free.

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