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Forum Discussion
RN516 Memory Upgrade
Curious if anyone knows if it is possible to upgrade the memory on the RN516? From what I can gather, the RN516 is using one slot (2 available) with a single innoDisk 4GB 1600 W/ECC DIMM, model # M3C...
Forget it's a NAS for the moment. It runs Debian... it's a Linux server, folks. Albeit it has specialized software installed on it, but underneath it's just Linux. mdgm is correct in that if it's not swapping them memory may not be a critical upgrade. But it also tries to use as much RAM for FILE CACHE. And we all know it's much faster to serve data from DRAM than it is disk... even if it's SSD, depending on I/O channel bandwidth.
So, again, it's up to your workload. If you /very frequently/ access tons of tiny files or a decent number of huge files, it's up to how well the most recent stuff fits in the available cache space. You may not swap, but you may spend more time hitting disks to pull data back in.
Swapping is more often a factor of how much RAM applications allocate. And in this area, that would include things like the web server, file services, and any add-ons you install. For most this won't be a problem, since they tend to be pretty tiny. But in my case, I find that PLEX (esp when you do lots of batch transcoding, like for syncing transcoded stuff to clients for offline viewing) and DVBLink (for OTA and cable TV recording) tend to like a fair amount of RAM. But if I'm transcoding and watching a program and my Mac kicks off a Time Machine backup, I'd rather not sit through stuttering. So for me the decision was fairly easy to do the memory upgrade.
Where memory is concerned... it's about swapping AND available file cache space. :) But, more generally, it's about your specific workload. And most workloads will probably not require more than default RAM.
So, again, it's up to your workload. If you /very frequently/ access tons of tiny files or a decent number of huge files, it's up to how well the most recent stuff fits in the available cache space. You may not swap, but you may spend more time hitting disks to pull data back in.
Swapping is more often a factor of how much RAM applications allocate. And in this area, that would include things like the web server, file services, and any add-ons you install. For most this won't be a problem, since they tend to be pretty tiny. But in my case, I find that PLEX (esp when you do lots of batch transcoding, like for syncing transcoded stuff to clients for offline viewing) and DVBLink (for OTA and cable TV recording) tend to like a fair amount of RAM. But if I'm transcoding and watching a program and my Mac kicks off a Time Machine backup, I'd rather not sit through stuttering. So for me the decision was fairly easy to do the memory upgrade.
Where memory is concerned... it's about swapping AND available file cache space. :) But, more generally, it's about your specific workload. And most workloads will probably not require more than default RAM.
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