RN526X Hardware Cache on Motherboard.

Question

Hi All,I have 2 RN526Xs and while upgrading RAM to 32GB on each, I have noticed that the bottom of the mobo has an open slot.I have a couple of questions:1) is it a M.2 slot or mSATA?2) is such a cache memory upgrade supported in the OS v6.10.4?&nbsp;Thanks,mdd

StephenB · Answer

michaeldowns&nbsp;wrote:
&nbsp;
2) is such a cache memory upgrade supported in the OS v6.10.4?
&nbsp;

No, and just opening the chassis could have voided your warranty.
&nbsp;
michaeldowns&nbsp;wrote:
&nbsp;
1) is it a M.2 slot or mSATA?
&nbsp;

Information here says it is mSATA:&nbsp;https://community.netgear.com/t5/New-ReadyNAS-Users-General/Add-SSD-drive-s-to-RN528X/m-p/1805740#M38176

michaeldowns · Answer

Thanks StephenB,&nbsp;Performance improvement is worth the risk of warranty. The memeory expansion from 4GB to 32GB has been excellent.So, from what you mention, adding a mSata to the open slot will not affect NAS apps (Plex, etc.) performance; correct?Just to be clear.Thanks again,mdd

StephenB · Answer

michaeldowns&nbsp;wrote:
adding a mSata to the open slot will not affect NAS apps (Plex, etc.) performance; correct?
Just to be clear.

Based on other posts here: The web ui and the ReadyNAS software ignore it, and you'd need to use ssh to format it and mount it.&nbsp; Plex and other apps won't use it, unless you do something in ssh to change their configuration.
&nbsp;
michaeldowns&nbsp;wrote:
Performance improvement is worth the risk of warranty. The memeory expansion from 4GB to 32GB has been excellent.

Just trying to respond to your original questions...
&nbsp;
But just to follow up - what memory modules did you use, and what performance gain did you see?

michaeldowns · Answer

Hi StephenB,Thanks for that.I did follow up on the link you sent and found more about the failed ssh attempts at adding a SSD on the open M.2 slot.It seems that it would be useless to attempt to add a SSD for the purpose of a fast cache.The memory replaced the single 4GB stick with 2 x 16GB sticks.Timetec Hynix IC 32GB KIT (2x16GB) DDR4 2400MHz PC4-19200 Unbuffered ECC 1.2V CL17 2Rx8 Dual Rank 288 Pin UDIMM Server Memory RAM Module Upgrade (32GB KIT (2x16GB))&nbsp;https://www.amazon.com/gp/product/B07NQ1KW9H/ref=ppx_yo_dt_b_asin_title_o03_s00?ie=UTF8&amp;psc=1&nbsp;&nbsp;Prviously, the 4GB memory usage would often be maxed out causing an fairly unresponsive server.The performance has improved for large amounts of file transfers by about 30%.By that i mean RSync backups from RN526-1 to RN526-2 takes that much less time.Also Plex performance has&nbsp;improved almost 100% by measuring the time to scan a very large library of media.and for video transcoding tasks.&nbsp;Thanks again,mdd&nbsp;&nbsp;&nbsp;

StephenB · Answer

michaeldowns&nbsp;wrote:
&nbsp;
The performance has improved for large amounts of file transfers by about 30%.
By that i mean RSync backups from RN526-1 to RN526-2 takes that much less time.
Also Plex performance has&nbsp;improved almost 100% by measuring the time to scan a very large library of media.and for video transcoding tasks.
&nbsp;
&nbsp;

Thx for following up with the performance numbers.
&nbsp;
One last question - are you using a single gigabit network connection for your rsync backup test?&nbsp; Or are you using some form of bonding or 10gbase-T?

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RN526X Hardware Cache on Motherboard.

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