I'm at wits- and info- end trying to pick a discrete workstation RAID card. Up to the US$400 level anyway.
Up until recently, I'd narrowed it down...mostly to Adaptec.
+ Adaptec 5405: Fast, stable, but runs really hot.
+ Adaptec 2405Q: The above without the heat, plus an SSD to speed things up. Possible vapor. No reviews; just fluff.
+ Adaptec 6405: 6 Gb/s; the "new" Adaptec made by a different company. Plus, Vaporware until 3/2011.
LSI seems to have some decent stuff, maybe, but no RAID10 options.
Areca seemed to have some boards that kicked butt...2 years ago...by pulling RAID-0 on reads and RAID-10 on writes. Sweet, but I'm not sure that edge exists anymore. Maybe that's the common algorithm now.
But what gets my goat is that it is almost impossible to find hard CURRENT numbers on any of these controllers' performance at the various RAID levels; that is, the articles that do have that info are 2-3 years out of date. Given that even a firmware update could radically change the performance of any controller, the older results are likely little better than rules of thumb. Really well tested rules of thumb, but antiquated. Even updated vendor metrics would be something.
Weirdly enough, I can only seem to find the 5405 (Newegg only carries that one). The 2405Q seems cool, but damned if I can find it.
Anyone build using these cards for a living or have an awesome system-building story that can illuminate me unto the occult mysteries of the state of the art?
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I have pretty much the same question. I noticed that the Adaptec 2405Q is beginning to show up on online stores, but most of them say it's "out of stock" or "special order." Has anyone purchased one of these and tried it out? Is the SSD cache worthwhile? Does it run cooler than the others? I would run RAID 10.
I'd use regular SATA drives - 4 drives in a RAID 10 configuration. I have an open PCIe x16 slot. Since this thread was one of the few discussions that brought up the new Adaptec with the built-in SSD cache management, I figure I'll ask about that type.. I looked on the Highpoint website but didn't really see anything that matches this new Adaptec Q-series technology (the hybrid Rocket RAID seems a bit different in how it works). This Adaptec Q-series may be a relatively cheap way to get the benefits of SSD without having to buy super expensive large capacity SSD drives. However I haven't seen any reviews of the 2405Q or any other Q-series so I'm interested to hear user experiences if this technology blows away "standard" RAID (or even better than the hybrid disk/SSD RAID).
Well what are you trying to do? Combining SSD and regular SATA disks has never worked out well, their technology is just too different. When you said workstation I assumed you were talking SAS disks, SAS controllers can use SATA disks the same as SAS.