We use PCMark Vantage test less for everyday applicability and more for the sake of looking at possible performance differences due to varying workload types.
The only reason you should be using those 2.5" drives if it you need to conserve rack space, over worrying about performance.
Please teach me something: If the throughput reaches 140 MB/s, or 1.4 Gb/s after allowing for 8/10 encoding, what is the advantage of a 6 Gb/s interface? I know that interfaces don't run at their max in the real world, but under 50%?
Any indication on the prices for this? So far I haven t seen 10k rpm 2.5hdds in my area, even the specialty stores only have the 3.5's 10k rpm drives at most.
WyomingKnott & cjl: There is also an "overhead" to consider as there is an overhead when transferring TCP packets. Not only pure data is transferred over the SAS bus, but also other things such as SATA/SCSI commands, parity bits etc. The limit will be pushed further when using RAID setups, especially when connecting the hard drives using port multipliers where several drives have to share a channel. A SAS controller typically provide 4 channels per connector but it is possible to connect many more hard drives to it using multipliers.Another aspect of the SAS/SATA bus is the latency which is especially important performance wise when it comes to solid state drives. I would say that the latency is even more crucial to performance than the bandwidth.
Why doesn't the Test Setup / Hardware page list the SAS controller and drivers used?
very true about SSD's
As far as temps are concerned they are high. On my workstation the lowest temp I have seen was a meager 22c while the hottest was only 42c. My 3 sata drives stay under 45c while the two top ide drives stay under 40c in daily use.
Any enteprise admins out there notice that Dell and IBM are selling these drives already but HP is not?
What is the maximum transaction size of the chipset on your MB? Can it handle 4K transactions in a single transfer? I'm interested in the performance of the real world chipsets when transfering 300 GB files and larger, so you've given me a tantalizing peek at what might be possible, but there's a lot of info still missing.
Oops, I'm referring to 4KB transactions on the PCI-e I/F.