I have the HE103SJ Samsung RAID class drive and accidentally purchased a second Samsung drive the HD103SJ to run a mirror. I am interested in some performance of the RAID 1 read, but mainly for the instant reliability of having a backup drive in case of failure. Has anyone attempted to run these two together? Are the non RAID HD103SJ crippled in the firmware to not work in RAID? I had an issue with Western Digital recently that they decided to shut off RAID ability in the firmware for newer green drives, trying to avoid that issue here with the Samsung's.
The difference isn't in the ability to be used for RAID; it's in the durability. The HE model is targeted at an enterprise audience and has higher shock resistance (and is 0.1 bel quieter, but so what?).
Oddly, I can't see the warranty for these; I would expect the HE to have a longer warranty period.
I will give about 98% odds that they will work fine together in RAID1. Are they both one TB? The HE's product page says both one TB and 750 GB.
I seen that in some other tests. There isn't load balancing with mirroring, unless you have a great raid controller that can do it, or Linux. I don't have either. I went ahead and bought another HE103SJ to pair up in a mirror, as I'm hesitant to RAID 5 these drives.
Considering I have 4 2TB drives on this to do backups, I went ahead and did a RAID 0 on these two HE103SJ drives and here's the benchmark result for anyone that is interested. Using HD Tune 2.55 to test, and the controller is built in to my Gigabyte GA-890GPA-UD3H. The reason I did not install Windows on the RAID5 is I had been using an ECS board (do not use them!) and the onboard controller would crash any Windows installation. Looking at these numbers I'm considering porting everything over to a partition on the Hitachi array.
RAID0 HE103SJ 1TB x2
Minimum 119.5 MB/sec
Maximum 148.6 MB/sec
Average 137.3 MB/sec
Access Time 11.2 ms
Burst Rate 85.9 MB/sec
CPU Usage -1.0%
RAID5 2TB x4 drives Hitachi HDS723020BLA642
Minimum 162.2 MB/sec
Maximum 289.5 MB/sec
Average 258.3 MB/sec
Access Time 12.3 ms
Burst Rate 200.4 MB/sec
CPU Usage -1.0%