June 30, 20251 yr Hello!About two months back (May 08), I made a post here because my server was experiencing disabled drives. Long story short, I was advised that I was daisy chaining too many drives together to the PSU, and after splitting up my drives, my server bounced back and has been performing great... until tonight. First one drive became disabled (Disk 4) and then shortly after I did a re-start, another also became disabled (Disk 5). My server is also extremely slow (takes much longer to re-start, start array, check drive for file system errors, etc) and that was something I noted during my last bout of troubles, but that went away when the server was "fixed".I figure I'll open it up tomorrow and maybe split the drives even further in case this is another power splitter issue (one of the disabled drives was also afflicted last time) -- but I thought I'd post here first with the diagnostics in case anyone sees a more glaring solution.Thank you for any assistance! starryskynet-diagnostics-20250630-0316.zip
June 30, 20251 yr Community Expert Solution Still looks like a power/connection issue, did you also replace the SATA cables.
June 30, 20251 yr Author Sorry, posting this from work and won't be able to tinker on my server until later. Just had a quick question in the meantime.I was re-reading the old thread and saw again your advice regarding the amount of drives it is safe to daisy-chain via Sata to Sata being 2.I have 16 disks in my case and my power supply (ax1600i) has 6 SATA slots (currently chained in groupings of 3, 4, 4, 3, 2). does that mean I am limited to 12 disks (2 daisy chained disks per sata slot) in my NAS?I have a DAS which I disconnected previously and if so, I can move four disks over to see if that alleviates the issues? OR I can try grouping my disks into 3, 3, 3, 3, 2, 2 -- but if 2 is the absolute limit if daisy chain-able disks, I will do the former.Edit: Also, sorry. In response to your question, I believe I mostly swapped SATA cables around, and did replace one. Won't know more until later. Edited June 30, 20251 yr by Pluvichor More info
July 1, 20251 yr Community Expert 12 hours ago, Pluvichor said:I was re-reading the old thread and saw again your advice regarding the amount of drives it is safe to daisy-chain via Sata to Sata being 2.I meant power splitters, if the PSU has SATA cables with 4 plugs for example, and the total number o cables is not enoughs for the devices, you should not split each SATA plug into more than two, so in this example 8 HDDs per cable.
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