I had this issue on my asus p6x58d-e with 6 x 8gb sticks. I was getting about 32gb of memory showing up when I definitely had 48gb available. I would sometimes have to move pci-e cards around to prevent memory from disappearing or use different types of cards.
I took apart all the components...
damnit. so I checked this thread randomly after not being on hardforum for years. and guess what, my x58 asus board with a 980x is reporting 16gb out of 24gb and my overclocks have needed ridiculous amounts of voltage to even be unstable. so I think I'm throwing in the towel on x58.
what is the...
this on its own is a ridiculous idea. in 1000 years, they'll store all 40pb on a single "hard drive", what hard drives are in the future. you only have to worry about 50 years tops, and transfer it from there.
longer, and you have to reconfigure everything. (and it shows you had absolutely ZERO backup plan in place). I don't see what the point of backing up is if you're going to reinstall your OS. sure you can have a backup plan that only covers documents, but having one that covers programs and...
there is no drive in existence that out performs the read 4k QD1 on fusion-io iodrives.
I've seen quite a few pci-e reviews of the enterprise stuff and have never seen 20k iops on 4k qd1. according to http://www.storagereview.com/ocz_zdrive_r4_enterprise_pcie_ssd_review the fusion still wins...
I do use over provisioning. I took 60gb drives and made them 50gb because I didn't have access to trim in the raid array they were placed in.
Performance will not increase much, it will just prevent WRITE performance from declining due to all the cells being filled and never cleared.
As to...
you have to be careful, some firmware updates can be destructive
you can just split your drives and update them on another computer and put them back together, but if the firmware update did any breaking, you'd be a bit in trouble
I have to run my LSI cards in the first slot always. needs to be in 8x mode. it's possible your graphics card is negotiating for 16 lanes and then the lsi card is getting stuck in 4x or 1x mode somehow, motherboards have diff rules for it.
I run a 5870 and a 9265 on an asus board, that's what I...
except they are full of it. smaller ssds only have performance issues on writing, not reading.
and considering you have a limit of 3gb/s, you can hit the full 6gb/s speed by raiding, where you'd be stuck with 3/gbs for sequentials without raiding.
purchasing 4 raid controllers for 32 disks is the most ridiculous post I have ever seen here.
some higher controllers can support something like 128 disks on their own. get an expander. nobody needs 4 pci-e slots for only 32 drives.
a motherboard that can support 4x/8x in 4 slots is going to...
10gb is a waste, if you must connect multiple machines together at faster than 1gb speeds, get infiniband for much less and better performance.
to handle parity, get an expander and an LSI 9266 or one of the higher end areca's. if you're not going to use the raid offered by the controller, and...
being an agility 3, you have async nand, it does not perform well on AS. run CDM, with 0 fill and you will see your advertised numbers.
make sure you have ahci enabled as well. it should tell you what driver it is trying to use in the AS test. make sure you are aligned OK as well.
the pci-e drive you are looking at is a raid done for you. they take ssds and combine them on the card. you are better off purchasing individual ssds and raiding them yourself.
lol. only review I could find for a velo http://www.xbitlabs.com/news/storage/display/20110428165836_OCZ_Introduces_Configurable_SSD_Solution_for_SMB_Clients.html
it's a shame it can only get 24mb/s on the 300gb version for 4k qd1 random read.