On 12/12/2013 09:22 AM, Jason Warr wrote: > Some of you may be interested in this PCIe card: > > http://www.addonics.com/products/ad4mspx2.php > > I just received a couple of them and have done basic functionality > testing. No bcache yet but that is what they are intended for. The > controller is a Marvell 88SE9230 connected via an x2 link. > > 03:00.0 SATA controller: Marvell Technology Group Ltd. 88SE9230 PCIe > SATA 6Gb/s Controller (rev 10) > LnkCap: Port #0, Speed 5GT/s, Width x2, ASPM L0s L1, > Latency L0 <512ns, L1 <64us > ClockPM- Surprise- LLActRep- BwNot- > LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- Retrain- > CommClk+ > ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt- > LnkSta: Speed 5GT/s, Width x2, TrErr- Train- SlotClk+ > DLActive- BWMgmt- ABWMgmt-- > Kernel driver in use: ahci > Kernel modules: ahci > > [8:0:0:0] disk ATA MKNSSDAT120GB-DX 521A /dev/sde > [9:0:0:0] disk ATA MKNSSDAT120GB-DX 507A /dev/sdf Also this may or may not matter to anyone here but I was screwing around with it and you can hot-plug the mSATA cards onto it just fine. At least with those particular Mushkin models but I believe it is supposed to be part of the spec that mSATA support all the features of regular SATA. > So you are theoretically limited to less than 1GB/s across PCIe but for > caching purposes I'm more interested in IOPS than raw bandwidth > anyways. Using "dd if=/dev/zero of=/dev/sdX bs=1M oflag=direct" I am > seeing ~380MB/s per device on 2 Mushkin MKNSSDAT120GB-DX concurrently. > Not the greatest test but it does show that they work OK. I am getting > Fedora 20 installed the way I want it and then the real testing will begin. > -- > To unsubscribe from this list: send the line "unsubscribe linux-bcache" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe linux-bcache" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
