opentoe Posted November 28, 2011 Posted November 28, 2011 HighPoint RocketHybrid 1220 PCI-Express 2.0 x 1 SATA III (6.0Gb/s) Controller Card http://www.newegg.com/Product/Product.aspx?Item=N82E16816115097 $19. Was $59. $40 off!
bubbaQ Posted November 28, 2011 Posted November 28, 2011 These would be much more attractive if someone would come out with moderately sized (40GB) SSD drives that were sufficiently paralleled/RAIDed to deliver 500MB/sec. As it is now, only large SSDs are being made with those specs. Or even a battery-backed DRAM cache would be nice.
S80_UK Posted November 29, 2011 Posted November 29, 2011 Or even a battery-backed DRAM cache would be nice. Something like a modern replacement for the Gigabyte i-RAM - http://techreport.com/articles.x/9312 Sadly it was only SATA I (1.5Mbits/sec) and had 4GBytes max capacity (and expensive regular DDR). Given the price of DDR3 RAM these days a modern implementation could be quite handy.
bubbaQ Posted November 29, 2011 Posted November 29, 2011 It needs to be on the controller for real speed... like the 4GB on the Areca.... but I'd like something more like 16GB or more. I usually allocate 8GB of RAM to FancyCache with writes fully cached, and database work FLIES.
WeeboTech Posted November 29, 2011 Posted November 29, 2011 I knew this hybrid technology was going to take off. I saw OCZ has a PCIe card that has the SSD and a 1TB 2.5" drive on the card. This Highpoint RocketHybrid is an interesting controller. If I were in the market with a Windows machine I would try this out. As far as a competitor to the iRAM acard came out with a couple http://www.acard.com/english/fb0101.jsp?type1_idno=13 These are real ram based drives. I almost bought one for my Windows Virtual Machine, but decided to wait until RHEL6 was fully released then go back to an SSD. I gave up on the SSD because RHEL5 kept timing out on the SSD and it was hanging the virtual machine. In any case, this hybrid technology really does wonders for windows environments. I still swear by the Momentus XT 500GB hyrbrid 2.5" drives.
WeeboTech Posted November 29, 2011 Posted November 29, 2011 Or even a battery-backed DRAM cache would be nice. Something like a modern replacement for the Gigabyte i-RAM - http://techreport.com/articles.x/9312 Sadly it was only SATA I (1.5Mbits/sec) and had 4GBytes max capacity (and expensive regular DDR). Given the price of DDR3 RAM these days a modern implementation could be quite handy. I have the i-RAM. I love it for what I got it for. I use it for a temp partition and put the windows swap file on it. I have another on my unRAID server for swap and for syslog. Since I route all syslogs to the unRAID server. I do not have to concern myself with incremental writes all day on magnetic or SSD media.
bubbaQ Posted November 29, 2011 Posted November 29, 2011 I just use a RAMdisk for temp and windows swap. INSANELY faster than Acard or anything else. VSuite will use RAM above 4GB under 32-bit Windows, and works fine too with the flat memory in 64-bit. I had high hopes for the Momentus XT, but Seagate changed the firmware to prevent them from working reliably in RAID setups.
WeeboTech Posted November 29, 2011 Posted November 29, 2011 I just use a RAMdisk for temp and windows swap. INSANELY faster than Acard or anything else. VSuite will use RAM above 4GB under 32-bit Windows, and works fine too with the flat memory in 64-bit. I'm not always in a windows world. I like the idea of the i-RAM/ACARD. For /var/log storage and for virtual vmware disks. I had high hopes for the Momentus XT, but Seagate changed the firmware to prevent them from working reliably in RAID setups. This is news to me, I would love to read more about it, any links? I've also added a new topic related to this one. Perhaps we can continue there. Hybrid Technology, Hard Drives, Caching Controllers, Outboard addons... http://lime-technology.com/forum/index.php?topic=16940.0
bubbaQ Posted November 29, 2011 Posted November 29, 2011 This is news to me, I would love to read more about it, any links? Apparently you can't disable APM with the later firmware, and that causes drives to drop off some RAID controllers. It's frustrating as there are several article out there where people did RAID Momemtus XT drives, and they worked, but those are apparently the older firmware. http://forums.seagate.com/t5/Momentus-XT-Momentus-Momentus/Momentus-XT-APM-spindown-feature-causes-quot-lag-spikes-quot-in/m-p/56055 Quote from Seagate support: Thank you for choosing Seagate. These drives are not designed or intended to be used in a RAID configuration, and the drives are working as designed. I would recommend using an ES or Enterprise drive, as the firmware in those drives are designed and better suited for RAID use. Basically, you are attempting to use the drives in a manner that was not intended, nor can be supported. If the drives pass Seatools and this issue only occurs in your RAID configuration, then the drives are fine. Please let us know if you have any other questions. Thank you again for choosing Seagate and have a great day! Bryan Seagate Technical Support Second generation of Momentus XT will be out soon.... time will tell if they will be better suited to RAID or not.
WeeboTech Posted November 30, 2011 Posted November 30, 2011 SSD Caching (Without Z68): HighPoint's RocketHybrid 1220 http://www.tomshardware.com/reviews/rockethybrid-1220-ssd-caching,2936.html
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