SuperW2 Posted June 18, 2015 Share Posted June 18, 2015 Longtime unRAID user, but only recently moved to v6 (which I'm finding awesome BTW). I have a 20 Drive Array (18 data+Parity+Cache) which is maxed out my internal physical drive capacity (Qty (4) 5-in-3 Cages). I've recently setup a couple Docker Apps and a couple VM's, and also use my Cache Drive for a couple legacy apps (Sabnzbd + Sickbeard, etc) that I plan to move to Docker eventually. I have a single older 750GB Cache drive in place now that gets super hot (heat alarms pretty consistently, plus Reallocated Sector Ct, etc), its pretty slow and probably about 4x larger than I probably really need right now. So I'm looking at moving my current Cache drive to SSD (or SSDs in a Cache Array). So I guess the real question, Is there a recommended way of moving everything I currently have on Cache now and then be able to "move it back" once I've installed the new SSD(s), or should I just rebuild everything that I have today on my HDD Cache (not my favorite option). As far as single cache vs array, I have a smaller 1.5TB drive in the array now that I could pretty easily move the data from to free up a 2nd slot, so I could get 2 SSD's and setup the cache array, just so I would have some confidence in my cache as I continue to build and do more with VM's and Docker Apps. I guess I have to also figure out what kind of 2.5 SSD tray I might get to work with the IcyDock HotSwap Cages as part of my 5-in-3's, but first things first since I havn't picked out or purchased the SSD's yet either. Thoughts or advice? -SW2 Link to comment
itimpi Posted June 18, 2015 Share Posted June 18, 2015 Do you have spare SATA slots above those required for the 20 drives in the 5in3 cages? A SSD (or a 2.5" HDD) has a small enough form factor that it can quite likely be squeezed in somewhere internally in the case without using a 3.5" slot. Link to comment
SuperW2 Posted June 18, 2015 Author Share Posted June 18, 2015 The case is pretty tight...It's been a while since I've had to crack it (one of the reason I love the cages)... I'm not super worried about losing the one 1.5TB Data Drive, I have several TB's free and can pretty easy bump up a few other 1.5's to 4TB's. Link to comment
bigsing Posted June 18, 2015 Share Posted June 18, 2015 I bought one of these for my server - http://www.amazon.com/gp/product/B00IB6I43K?psc=1&redirect=true&ref_=oh_aui_detailpage_o02_s00. I have 2x256GB SSDs for a cache pool when i complete my unraid v6 upgrade. Link to comment
SuperW2 Posted June 18, 2015 Author Share Posted June 18, 2015 Thanks.... My post was more to try to find out how to lift and replace the Cache without having to redo all of the stuff I have on my current cache drive. Fitting the new SSD's, physically, isn't a super big concern. "So I guess the real question, Is there a recommended way of moving everything I currently have on Cache now and then be able to "move it back" once I've installed the new SSD(s), or should I just rebuild everything that I have today on my HDD Cache (not my favorite option)." Link to comment
trurl Posted June 18, 2015 Share Posted June 18, 2015 Haven't really tried it but you should be able to stop the docker service and any VMs, copy everything from old cache to new, reassign cache, restart docker and VMs. Possibly a shutdown in there somewhere to add / remove drives. There are some threads around on backing up your cache drive with some of these steps. See this one for example. You could probably use the Unassigned Devices plugin to mount the new drive while you did the copy. Link to comment
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