OCZ PCI-e ssd安装使用

centos6.x的系统自带mvsas是可以驱动使用ocz的，但是480G的会被分割为4个120G的盘，性能效果也不好，所以接下来准备安装厂商的驱动使用
http://www.oczenterprise.com/drivers.html从官网下载Z4的驱动即可，安装后重启还是使用的mvsas，需要设置一下黑名单
cat /etc/modprobe.d/blacklist.conf    --加入一下黑名单
blacklist mvsas
blacklist libsas
blacklist scsi_transport_sas
接着要重做initramfs
cp /boot/initramfs-$(uname -r).img /boot/initramfs-$(uname -r).img.bak --备份
 dracut -f /boot/initramfs-$(uname -r).img $(uname -r)  --重做
 lsmod | grep ocz
oczvca                 15723  2 
oczpcie                51838  5 oczvca
lsmod|grep mvsas  就不会显示加载内容了


 lspci -vvvvv|less  --可以看到一下内容，使用了oczpcie驱动


07:00.0 SCSI storage controller: OCZ Technology Group, Inc. RevoDrive 3 X2 PCI-Express SSD 240 GB (Marvell Controller) (rev 02)
        Subsystem: OCZ Technology Group, Inc. RevoDrive 3 X2 PCI-Express SSD 240 GB (Marvell Controller)
        Physical Slot: 2
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr+ Stepping- SERR- FastB2B- DisINTx+
        Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
        Latency: 0, Cache Line Size: 64 bytes
        Interrupt: pin A routed to IRQ 57
        Region 0: Memory at fbfe0000 (64-bit, non-prefetchable) [size=128K]
        Region 2: Memory at fbf80000 (64-bit, non-prefetchable) [size=256K]
        [virtual] Expansion ROM at e7100000 [disabled] [size=64K]
        Capabilities: [40] Power Management version 3
                Flags: PMEClk- DSI- D1+ D2- AuxCurrent=375mA PME(D0+,D1+,D2-,D3hot+,D3cold-)
                Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
        Capabilities: [50] MSI: Enable+ Count=1/1 Maskable- 64bit+
                Address: 00000000fee002f8  Data: 0000
        Capabilities: [70] Express (v2) Endpoint, MSI 00
                DevCap: MaxPayload 4096 bytes, PhantFunc 0, Latency L0s <1us, L1 <8us
                        ExtTag+ AttnBtn- AttnInd- PwrInd- RBE+ FLReset-
                DevCtl: Report errors: Correctable- Non-Fatal+ Fatal+ Unsupported-
                        RlxdOrd+ ExtTag- PhantFunc- AuxPwr- NoSnoop-
                        MaxPayload 256 bytes, MaxReadReq 512 bytes
                DevSta: CorrErr+ UncorrErr- FatalErr- UnsuppReq+ AuxPwr- TransPend-
                LnkCap: Port #0, Speed 5GT/s, Width x8, 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 x4, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt-
                DevCap2: Completion Timeout: Not Supported, TimeoutDis+, LTR-, OBFF Not Supported
                DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-, LTR-, OBFF Disabled
                LnkCtl2: Target Link Speed: 5GT/s, EnterCompliance- SpeedDis-
                         Transmit Margin: Normal Operating Range, EnterModifiedCompliance- ComplianceSOS-
                         Compliance De-emphasis: -6dB
                LnkSta2: Current De-emphasis Level: -6dB, EqualizationComplete-, EqualizationPhase1-
                         EqualizationPhase2-, EqualizationPhase3-, LinkEqualizationRequest-
        Capabilities: [100 v1] Advanced Error Reporting
                UESta:  DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq+ ACSViol-
                UEMsk:  DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq+ ACSViol-
                UESvrt: DLP- SDES+ TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
                CESta:  RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr+
                CEMsk:  RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr-
                AERCap: First Error Pointer: 00, GenCap+ CGenEn- ChkCap+ ChkEn-
        Capabilities: [140 v1] Virtual Channel
                Caps:   LPEVC=0 RefClk=100ns PATEntryBits=1
                Arb:    Fixed- WRR32- WRR64- WRR128-
                Ctrl:   ArbSelect=Fixed
                Status: InProgress-
                VC0:    Caps:   PATOffset=00 MaxTimeSlots=1 RejSnoopTrans-
                        Arb:    Fixed- WRR32- WRR64- WRR128- TWRR128- WRR256-
                        Ctrl:   Enable+ ID=0 ArbSelect=Fixed TC/VC=ff
                        Status: NegoPending- InProgress-
        Kernel driver in use: oczpcie
        Kernel modules: oczpcie, mvsas




fdisk -l   --可以看到是一块480G的SSD ，接下去就可以正常使用了


Disk /dev/oczpcie_7_0_ssd: 480.1 GB, 480136395264 bytes
92 heads, 61 sectors/track, 167100 cylinders
Units = cylinders of 5612 * 512 = 2873344 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x0006dbf6


               Device Boot      Start         End      Blocks   Id  System
/dev/oczpcie_7_0_ssd1               1      167101   468882174+  83  Linux


Disk /dev/oczpcie_7_0_ssd1: 480.1 GB, 480135346688 bytes
128 heads, 128 sectors/track, 57236 cylinders
Units = cylinders of 16384 * 512 = 8388608 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000