I would like to build an aprox. 16TB raid0 array of SSDs. My backplane has plenty of dual port SAS3 12Gb/s capacity but I lack PCIe lanes for enough m.2 or u.2 NVMe devices.
Usage is ~90/10 reads/writes and almost entirely small random iops (lots of 4k). DWPD would be around 10%. The data is actually a mirror of data that is regularly backed up so raid0 seems reasonable in the case. If a drive blows up and I'm off-line for a few days while I wait for a replacement, that's ok.
I would prefer dual port since I might end up with sequential workloads in the future.
A single 16TB device would probably be ok but I would prefer multiple devices, up to 8, just to spread out my failure risk (replacement cost). I would like to keep the cost below $2K. There seem to be quite a few capacity options in that range, a lot of drives on eBay do tend to be quite old (2016-ish), and it's not fun trying to figure out if a drive is single or dual port.
Any advice or recommendations would be greatly appreciated!
Usage is ~90/10 reads/writes and almost entirely small random iops (lots of 4k). DWPD would be around 10%. The data is actually a mirror of data that is regularly backed up so raid0 seems reasonable in the case. If a drive blows up and I'm off-line for a few days while I wait for a replacement, that's ok.
I would prefer dual port since I might end up with sequential workloads in the future.
A single 16TB device would probably be ok but I would prefer multiple devices, up to 8, just to spread out my failure risk (replacement cost). I would like to keep the cost below $2K. There seem to be quite a few capacity options in that range, a lot of drives on eBay do tend to be quite old (2016-ish), and it's not fun trying to figure out if a drive is single or dual port.
Any advice or recommendations would be greatly appreciated!