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
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
