The LSI SAS 9211-8i host bus adapter provides the greatest available throughput to internal server storage arrays through eight internal 6Gb/s ports, driving up to 256 SAS and SATA physical devices. This HBA offers dynamic SAS functionality including dual-port drive redundancy and SATA compatibility. Utilizing two internal x4 SFF8087 Mini-SAS connectors, the low-profile SAS 9211-8i is an excellent fit for 1U and 2U servers.
The SAS 9211-8i utilizes the embedded CPU in the LSI SAS2008 controller to perform integrated RAID 0, 1, 1E and 10 operations for reliable data protection with high-availability. The result is an ultra-thin, low-overhead device driver communicating over the x8 PCI Express 2.0 host interface. By reducing RAID code overhead, this HBA delivers high-speed READ/WRITE performance, making it well suited for medium to high-capacity internal storage applications.
Horrible RAID controller, reminder of how bad NewEgg service is
Pros: It comes with cables and you can connect all your drives to the RAID controller card with it.
Cons: While the read performance was great on the RAID 10 SSD drive array, the write performance was as good as a IDE hard drive from back in the early 90's. I was getting around 30MB a sec.
Other Thoughts: It took me awhile to come to this realization, I didn't benchmark the card right out of the box. NewEgg wouldn't take the card back because I threw away the $1 cardboard box. I purchase over a dozen different things a month from NewEgg, spend thousands of dollars. I can't keep all these different boxes in my office for 30 days in case something happens.
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Great SAS performance. SATA, though........
Pros: The SAS performance on this card is very good if you don't need a cache-capable HBA. I get decently low read and write latencies in ESXi 5.0. Also great read/write transfer rates (~35,000KB/sec) with SAS drives.
Cons: The SATA performance in an abomination. the maximum SATA read/write performance I got from a Seagate Constellation ST9500530NS drive was 600KB/Sec. At first, I thought it was the drive, but after moving it onto an on-board SATA controller, the drive performed much better (~20,000KB/sec). I assume that the HBA's implementation of the SATA command protocol is not up to par with it's respectable SAS implementation.
Other Thoughts: Just a warning to those of you looking for a card to be your one stop shop for SAS and SATA, it might be best to look elsewhere. YMMV, though.
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Pros: Very fast, I'm running a Seagate Chetah 15k rpm via SAS. I am also running a pair of Western Digital 640GB SATA 6G/s on a RAID 0.
Cons: The additional bios adds to the boot time.
Other Thoughts: Make sure and order the correct cables for this HBA.
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Great card, consider the bare version
Pros: - Paired with a decent CPU, can push an array of SSDs far past most other controllers.
Cons: - Included cables have molded power & data and can't be used with most enclosures.
Other Thoughts: The kit version of this card included two breakout cables which have molded power & data plugs that can't be used with most enclosures. This isn't readily apparent from the product images (though you can see it if you look REAL close). Unless you're using this card without a backplane, get the cheaper version that comes without cables and buy your cables separately.
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