Hello No, an interposer is not required, does not affect performance, and will not affect the performance of the SAS drives. I don't show a HDD carrier option for the R630 that includes an interposer or an interposer listed separately. Thanks
Hello, we have a new Poweredge R630, which arrived with 4 x 300 GB SAS spinning disks in RAID 5. Everything is fine with them. We would however like to also use a SATA (SSD) drive (we have a far from exceptional Kingston SV300S3). We did insert it with a spare caddy and after configuring it as a new virtual disk, it seems fine. The only doubt I have is whether we can leave it without a SAS interposer in front of it. More specifically: 1) would the interposer increase its performances? Or would the bottleneck be the SATA: Rev. 3.0 (6Gb/s) interface of the SSD anyway? 2) does the fact that the SSD is attached as SATA hinder in some way the performance of the 4 SAS drives? 3) if we wanted to add an interposer, which part number should we buy? Just for completeness: the performance as of now seems farily acceptable (but I have no clear benchmark in mind). In a sequential read test, it performs slightly worse than the spinning drives (~360 MB/s vs. ~595 MB/s), but in a random read/write test it clearly outperforms them (~10x the iops).
Poweredge R630 - adding a SATA disk