I have a TS-462 replaced all (4) the SATA HDDs in RAID5 with SSDs few months ago. Since the replacement, I noticed the latency for the SSDs are between 25ms and as high as 150ms while the two NVMe SSDs maintains 1ms latency. Does anybody know if such high latency is normal? Three of them are same brand and four of them are the same capacity and all are listed in the compatibility list. (I don’t have the latency information for those HDDs)
Start your storage from scratch and check again, replacing HDD with SSD is not supported and important features of SSD’s would also not be supported (trim,etc)