(02-16-2025, 07:35 PM)Enquiries Wrote: Added 128GB of SSD cache to a 4TB RAID-1 array on TS-x53D (NVMe > PCIe x4). This server as cache for my geoguessr free VMs secondary storage LUNs (iscsi @2.5Gb/s), for images and configuration files (NFS), and for syslogs and packet captures (SMB). I don't yet know if it's an improvement really.. but I am thinking further configuration is order. The SSD is runnning on its own RAID array (This might need to be reconsidered) and under cache acceleration with LUNs and shares under "cached storage". Set to Cache-Type: Read Write and Cache Mode: All I/O. Was this worth it?
I paid about $10.00 USD total for a no-name expansion card on ebay - which to my surprise actually worked! Was it worth it or am I wasting my time?? Cheers!
That said, you’re right to question if the separate RAID for the SSD cache is the most efficient setup — sometimes a single drive or different RAID config can give better performance in caching roles, depending on the workload. I’d suggest running some benchmarks or monitoring latency and throughput on your iSCSI/NFS/SMB shares to see if the cache is making a noticeable difference.