From mboxrd@z Thu Jan 1 00:00:00 1970 From: Lee Howard Subject: md data-check causes soft lockup Date: Mon, 21 Sep 2009 11:08:30 -0700 Message-ID: <4AB7C11E.60801@howardsilvan.com> Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="------------000701080508030200040103" Return-path: Sender: linux-raid-owner@vger.kernel.org To: neilb@suse.de, dan.j.williams@intel.com, mingo@redhat.com, linux-raid@vger.kernel.org List-Id: linux-raid.ids This is a multi-part message in MIME format. --------------000701080508030200040103 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Linux software RAID maintainers and developers, Two months ago I wrote to the Linux kernel mailing list regarding a condition expressed as "BUG: soft lockup - CPU#3 stuck for 61s!". I initially battled this recurring problem in both Fedora 10 and Fedora 11. Rafael J. Wysocki suggested that I update the kernel (to 2.6.31-rc4 or later) and see if the problem resurfaced. I then used kernel 2.6.31-0.94.rc4.fc12.x86_64 and found that the problem still continued, but noticeably only when the md data-check process was run. You can read the last post to the LKML thread (with links to the entire thread) here: http://lkml.org/lkml/2009/8/6/387 The md data-check is being run in Fedora 11 by /etc/cron.weekly/raid-check which is a little shell script that looks like this: ------------------------------------------------------ #!/bin/bash for dev in `grep "^md.*: active" /proc/mdstat | cut -f 1 -d ' '`; do [ -f /sys/block/$dev/md/sync_action ] && \ echo "check" > /sys/block/$dev/md/sync_action done ------------------------------------------------------ I have disabled this weekly data-check, and since doing so have not encountered any soft lockup (or any other problem, for that matter). For reference, you can see in this thread here that I am not the only one to have this problem: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/212684 It may important to note that I am running a 4-disk RAID1 array on 500GB Western-Digial SATA drives. I've attached the output of 'lspci -vv' as "lspci.out". I've attached the output of 'hdparm -I /dev/sda' as "hdparm.out". /dev/sda, /dev/sdb, /dev/sdc, and /dev/sdd are all identical drive types. I've attached the output of 'for i in 0 1 2; do mdadm --detail /dev/md$i; done' as "mdadm.out". Please let me know if this is a configuration problem, a kernel bug, or something else. Please let me know how to fix this problem so that I can safely re-enable md data-check. Thanks, Lee. --------------000701080508030200040103 Content-Type: text/plain; name="lspci.out" Content-Transfer-Encoding: 7bit Content-Disposition: inline; filename="lspci.out" 00:00.0 RAM memory: nVidia Corporation MCP55 Memory Controller (rev a2) Subsystem: nVidia Corporation Device cb84 Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx- Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- SERR- TAbort- SERR- TAbort- SERR- TAbort- SERR- TAbort- SERR- TAbort- SERR- TAbort- SERR- TAbort- SERR- TAbort- SERR- TAbort- SERR- TAbort- Reset- FastB2B- PriDiscTmr- SecDiscTmr+ DiscTmrStat- DiscTmrSERREn- Capabilities: [b8] Subsystem: nVidia Corporation Device cb84 Capabilities: [8c] HyperTransport: MSI Mapping Enable- Fixed- Mapping Address Base: 00000000fee00000 00:08.0 Bridge: nVidia Corporation MCP55 Ethernet (rev a3) Subsystem: nVidia Corporation Device cb84 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+ Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- SERR- TAbort- SERR- TAbort- SERR- TAbort- Reset- FastB2B- PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn- Capabilities: [40] Subsystem: nVidia Corporation Device 0000 Capabilities: [48] Power Management version 2 Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold+) Status: D0 PME-Enable- DSel=0 DScale=0 PME- Capabilities: [50] MSI: Mask- 64bit+ Count=1/2 Enable+ Address: 00000000fee0f00c Data: 4149 Capabilities: [60] HyperTransport: MSI Mapping Enable- Fixed- Mapping Address Base: 00000000fee00000 Capabilities: [80] Express (v1) Root Port (Slot+), MSI 00 DevCap: MaxPayload 256 bytes, PhantFunc 0, Latency L0s <64ns, L1 <1us ExtTag- RBE+ FLReset- DevCtl: Report errors: Correctable- Non-Fatal- Fatal- Unsupported- RlxdOrd+ ExtTag- PhantFunc- AuxPwr- NoSnoop+ MaxPayload 128 bytes, MaxReadReq 512 bytes DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr- TransPend- LnkCap: Port #5, Speed 2.5GT/s, Width x8, ASPM L0s L1, Latency L0 <512ns, L1 <4us ClockPM- Surprise- LLActRep+ BwNot- LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- Retrain- CommClk- ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt- LnkSta: Speed 2.5GT/s, Width x8, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt- SltCap: AttnBtn- PwrCtrl- MRL- AttnInd- PwrInd- HotPlug- Surpise- Slot # 0, PowerLimit 0.000000; Interlock- NoCompl- SltCtl: Enable: AttnBtn- PwrFlt- MRL- PresDet- CmdCplt- HPIrq- LinkChg- Control: AttnInd Off, PwrInd On, Power- Interlock- SltSta: Status: AttnBtn- PowerFlt- MRL- CmdCplt- PresDet- Interlock- Changed: MRL- PresDet- LinkState- RootCtl: ErrCorrectable- ErrNon-Fatal- ErrFatal- PMEIntEna- CRSVisible- RootCap: CRSVisible- RootSta: PME ReqID 0000, PMEStatus- PMEPending- Capabilities: [100] Virtual Channel Kernel driver in use: pcieport-driver Kernel modules: shpchp 00:0b.0 PCI bridge: nVidia Corporation MCP55 PCI Express bridge (rev a3) (prog-if 00 [Normal decode]) Control: I/O- Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+ Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- SERR- TAbort- Reset- FastB2B- PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn- Capabilities: [40] Subsystem: nVidia Corporation Device 0000 Capabilities: [48] Power Management version 2 Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold+) Status: D0 PME-Enable- DSel=0 DScale=0 PME- Capabilities: [50] MSI: Mask- 64bit+ Count=1/2 Enable+ Address: 00000000fee0f00c Data: 4151 Capabilities: [60] HyperTransport: MSI Mapping Enable- Fixed- Mapping Address Base: 00000000fee00000 Capabilities: [80] Express (v1) Root Port (Slot+), MSI 00 DevCap: MaxPayload 256 bytes, PhantFunc 0, Latency L0s <64ns, L1 <1us ExtTag- RBE+ FLReset- DevCtl: Report errors: Correctable- Non-Fatal- Fatal- Unsupported- RlxdOrd+ ExtTag- PhantFunc- AuxPwr- NoSnoop+ MaxPayload 128 bytes, MaxReadReq 512 bytes DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr- TransPend- LnkCap: Port #4, Speed 2.5GT/s, Width x1, ASPM L0s L1, Latency L0 <512ns, L1 <4us ClockPM- Surprise- LLActRep+ BwNot- LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- Retrain- CommClk- ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt- LnkSta: Speed 2.5GT/s, Width x4, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt- SltCap: AttnBtn- PwrCtrl- MRL- AttnInd- PwrInd- HotPlug- Surpise- Slot # 0, PowerLimit 0.000000; Interlock- NoCompl- SltCtl: Enable: AttnBtn- PwrFlt- MRL- PresDet- CmdCplt- HPIrq- LinkChg- Control: AttnInd Off, PwrInd On, Power- Interlock- SltSta: Status: AttnBtn- PowerFlt- MRL- CmdCplt- PresDet- Interlock- Changed: MRL- PresDet- LinkState- RootCtl: ErrCorrectable- ErrNon-Fatal- ErrFatal- PMEIntEna- CRSVisible- RootCap: CRSVisible- RootSta: PME ReqID 0000, PMEStatus- PMEPending- Capabilities: [100] Virtual Channel Kernel driver in use: pcieport-driver Kernel modules: shpchp 00:0c.0 PCI bridge: nVidia Corporation MCP55 PCI Express bridge (rev a3) (prog-if 00 [Normal decode]) Control: I/O- Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+ Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- SERR- TAbort- Reset- FastB2B- PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn- Capabilities: [40] Subsystem: nVidia Corporation Device 0000 Capabilities: [48] Power Management version 2 Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold+) Status: D0 PME-Enable- DSel=0 DScale=0 PME- Capabilities: [50] MSI: Mask- 64bit+ Count=1/2 Enable+ Address: 00000000fee0f00c Data: 4159 Capabilities: [60] HyperTransport: MSI Mapping Enable- Fixed- Mapping Address Base: 00000000fee00000 Capabilities: [80] Express (v1) Root Port (Slot+), MSI 00 DevCap: MaxPayload 256 bytes, PhantFunc 0, Latency L0s <64ns, L1 <1us ExtTag- RBE+ FLReset- DevCtl: Report errors: Correctable- Non-Fatal- Fatal- Unsupported- RlxdOrd+ ExtTag- PhantFunc- AuxPwr- NoSnoop+ MaxPayload 128 bytes, MaxReadReq 512 bytes DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr- TransPend- LnkCap: Port #3, Speed 2.5GT/s, Width x1, ASPM L0s L1, Latency L0 <512ns, L1 <4us ClockPM- Surprise- LLActRep+ BwNot- LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- Retrain- CommClk- ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt- LnkSta: Speed 2.5GT/s, Width x4, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt- SltCap: AttnBtn- PwrCtrl- MRL- AttnInd- PwrInd- HotPlug- Surpise- Slot # 0, PowerLimit 0.000000; Interlock- NoCompl- SltCtl: Enable: AttnBtn- PwrFlt- MRL- PresDet- CmdCplt- HPIrq- LinkChg- Control: AttnInd Off, PwrInd On, Power- Interlock- SltSta: Status: AttnBtn- PowerFlt- MRL- CmdCplt- PresDet- Interlock- Changed: MRL- PresDet- LinkState- RootCtl: ErrCorrectable- ErrNon-Fatal- ErrFatal- PMEIntEna- CRSVisible- RootCap: CRSVisible- RootSta: PME ReqID 0000, PMEStatus- PMEPending- Capabilities: [100] Virtual Channel Kernel driver in use: pcieport-driver Kernel modules: shpchp 00:0d.0 PCI bridge: nVidia Corporation MCP55 PCI Express bridge (rev a3) (prog-if 00 [Normal decode]) Control: I/O- Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+ Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- SERR- TAbort- Reset- FastB2B- PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn- Capabilities: [40] Subsystem: nVidia Corporation Device 0000 Capabilities: [48] Power Management version 2 Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold+) Status: D0 PME-Enable- DSel=0 DScale=0 PME- Capabilities: [50] MSI: Mask- 64bit+ Count=1/2 Enable+ Address: 00000000fee0f00c Data: 4161 Capabilities: [60] HyperTransport: MSI Mapping Enable- Fixed- Mapping Address Base: 00000000fee00000 Capabilities: [80] Express (v1) Root Port (Slot+), MSI 00 DevCap: MaxPayload 256 bytes, PhantFunc 0, Latency L0s <64ns, L1 <1us ExtTag- RBE+ FLReset- DevCtl: Report errors: Correctable- Non-Fatal- Fatal- Unsupported- RlxdOrd+ ExtTag- PhantFunc- AuxPwr- NoSnoop+ MaxPayload 128 bytes, MaxReadReq 512 bytes DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr- TransPend- LnkCap: Port #2, Speed 2.5GT/s, Width x1, ASPM L0s L1, Latency L0 <512ns, L1 <4us ClockPM- Surprise- LLActRep+ BwNot- LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- Retrain- CommClk- ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt- LnkSta: Speed 2.5GT/s, Width x4, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt- SltCap: AttnBtn- PwrCtrl- MRL- AttnInd- PwrInd- HotPlug- Surpise- Slot # 0, PowerLimit 0.000000; Interlock- NoCompl- SltCtl: Enable: AttnBtn- PwrFlt- MRL- PresDet- CmdCplt- HPIrq- LinkChg- Control: AttnInd Off, PwrInd On, Power- Interlock- SltSta: Status: AttnBtn- PowerFlt- MRL- CmdCplt- PresDet- Interlock- Changed: MRL- PresDet- LinkState- RootCtl: ErrCorrectable- ErrNon-Fatal- ErrFatal- PMEIntEna- CRSVisible- RootCap: CRSVisible- RootSta: PME ReqID 0000, PMEStatus- PMEPending- Capabilities: [100] Virtual Channel Kernel driver in use: pcieport-driver Kernel modules: shpchp 00:0e.0 PCI bridge: nVidia Corporation MCP55 PCI Express bridge (rev a3) (prog-if 00 [Normal decode]) Control: I/O- Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+ Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- SERR- TAbort- Reset- FastB2B- PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn- Capabilities: [40] Subsystem: nVidia Corporation Device 0000 Capabilities: [48] Power Management version 2 Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold+) Status: D0 PME-Enable- DSel=0 DScale=0 PME- Capabilities: [50] MSI: Mask- 64bit+ Count=1/2 Enable+ Address: 00000000fee0f00c Data: 4169 Capabilities: [60] HyperTransport: MSI Mapping Enable- Fixed- Mapping Address Base: 00000000fee00000 Capabilities: [80] Express (v1) Root Port (Slot+), MSI 00 DevCap: MaxPayload 256 bytes, PhantFunc 0, Latency L0s <64ns, L1 <1us ExtTag- RBE+ FLReset- DevCtl: Report errors: Correctable- Non-Fatal- Fatal- Unsupported- RlxdOrd+ ExtTag- PhantFunc- AuxPwr- NoSnoop+ MaxPayload 128 bytes, MaxReadReq 512 bytes DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr- TransPend- LnkCap: Port #1, Speed 2.5GT/s, Width x1, ASPM L0s L1, Latency L0 <512ns, L1 <4us ClockPM- Surprise- LLActRep+ BwNot- LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- Retrain- CommClk- ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt- LnkSta: Speed 2.5GT/s, Width x8, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt- SltCap: AttnBtn- PwrCtrl- MRL- AttnInd- PwrInd- HotPlug- Surpise- Slot # 0, PowerLimit 0.000000; Interlock- NoCompl- SltCtl: Enable: AttnBtn- PwrFlt- MRL- PresDet- CmdCplt- HPIrq- LinkChg- Control: AttnInd Off, PwrInd On, Power- Interlock- SltSta: Status: AttnBtn- PowerFlt- MRL- CmdCplt- PresDet- Interlock- Changed: MRL- PresDet- LinkState- RootCtl: ErrCorrectable- ErrNon-Fatal- ErrFatal- PMEIntEna- CRSVisible- RootCap: CRSVisible- RootSta: PME ReqID 0000, PMEStatus- PMEPending- Capabilities: [100] Virtual Channel Kernel driver in use: pcieport-driver Kernel modules: shpchp 00:0f.0 PCI bridge: nVidia Corporation MCP55 PCI Express bridge (rev a3) (prog-if 00 [Normal decode]) Control: I/O- Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+ Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- SERR- TAbort- Reset- FastB2B- PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn- Capabilities: [40] Subsystem: nVidia Corporation Device 0000 Capabilities: [48] Power Management version 2 Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold+) Status: D0 PME-Enable- DSel=0 DScale=0 PME- Capabilities: [50] MSI: Mask- 64bit+ Count=1/2 Enable+ Address: 00000000fee0f00c Data: 4171 Capabilities: [60] HyperTransport: MSI Mapping Enable- Fixed- Mapping Address Base: 00000000fee00000 Capabilities: [80] Express (v1) Root Port (Slot+), MSI 00 DevCap: MaxPayload 256 bytes, PhantFunc 0, Latency L0s <64ns, L1 <1us ExtTag- RBE+ FLReset- DevCtl: Report errors: Correctable- Non-Fatal- Fatal- Unsupported- RlxdOrd+ ExtTag- PhantFunc- AuxPwr- NoSnoop+ MaxPayload 128 bytes, MaxReadReq 512 bytes DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr- TransPend- LnkCap: Port #0, Speed 2.5GT/s, Width x16, ASPM L0s L1, Latency L0 <512ns, L1 <4us ClockPM- Surprise- LLActRep+ BwNot- LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- Retrain- CommClk- ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt- LnkSta: Speed 2.5GT/s, Width x16, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt- SltCap: AttnBtn- PwrCtrl- MRL- AttnInd- PwrInd- HotPlug- Surpise- Slot # 0, PowerLimit 0.000000; Interlock- NoCompl- SltCtl: Enable: AttnBtn- PwrFlt- MRL- PresDet- CmdCplt- HPIrq- LinkChg- Control: AttnInd Off, PwrInd On, Power- Interlock- SltSta: Status: AttnBtn- PowerFlt- MRL- CmdCplt- PresDet- Interlock- Changed: MRL- PresDet- LinkState- RootCtl: ErrCorrectable- ErrNon-Fatal- ErrFatal- PMEIntEna- CRSVisible- RootCap: CRSVisible- RootSta: PME ReqID 0000, PMEStatus- PMEPending- Capabilities: [100] Virtual Channel Kernel driver in use: pcieport-driver Kernel modules: shpchp 00:18.0 Host bridge: Advanced Micro Devices [AMD] Family 10h [Opteron, Athlon64, Sempron] HyperTransport Configuration Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- SERR- TAbort- SERR- TAbort- SERR- TAbort- SERR- 00:18.4 Host bridge: Advanced Micro Devices [AMD] Family 10h [Opteron, Athlon64, Sempron] Link Control Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- SERR- TAbort- SERR- [disabled] Capabilities: [40] Power Management version 2 Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-) Status: D0 PME-Enable- DSel=0 DScale=0 PME- --------------000701080508030200040103 Content-Type: text/plain; name="hdparm.out" Content-Transfer-Encoding: 7bit Content-Disposition: inline; filename="hdparm.out" /dev/sda: ATA device, with non-removable media Model Number: WDC WD5000AAKS-00A7B2 Serial Number: WD-WCASZ0321108 Firmware Revision: 01.03B01 Transport: Serial, SATA 1.0a, SATA II Extensions, SATA Rev 2.5 Standards: Supported: 8 7 6 5 Likely used: 8 Configuration: Logical max current cylinders 16383 16383 heads 16 16 sectors/track 63 63 -- CHS current addressable sectors: 16514064 LBA user addressable sectors: 268435455 LBA48 user addressable sectors: 976773168 Logical/Physical Sector size: 512 bytes device size with M = 1024*1024: 476940 MBytes device size with M = 1000*1000: 500107 MBytes (500 GB) cache/buffer size = 16384 KBytes Capabilities: LBA, IORDY(can be disabled) Queue depth: 32 Standby timer values: spec'd by Standard, with device specific minimum R/W multiple sector transfer: Max = 16 Current = 16 Recommended acoustic management value: 128, current value: 254 DMA: mdma0 mdma1 mdma2 udma0 udma1 udma2 udma3 udma4 udma5 *udma6 Cycle time: min=120ns recommended=120ns PIO: pio0 pio1 pio2 pio3 pio4 Cycle time: no flow control=120ns IORDY flow control=120ns Commands/features: Enabled Supported: * SMART feature set Security Mode feature set * Power Management feature set * Write cache * Look-ahead * Host Protected Area feature set * WRITE_BUFFER command * READ_BUFFER command * NOP cmd * DOWNLOAD_MICROCODE Power-Up In Standby feature set * SET_FEATURES required to spinup after power up SET_MAX security extension Automatic Acoustic Management feature set * 48-bit Address feature set * Device Configuration Overlay feature set * Mandatory FLUSH_CACHE * FLUSH_CACHE_EXT * SMART error logging * SMART self-test * General Purpose Logging feature set * 64-bit World wide name * Segmented DOWNLOAD_MICROCODE * Gen1 signaling speed (1.5Gb/s) * Gen2 signaling speed (3.0Gb/s) * Native Command Queueing (NCQ) * Host-initiated interface power management * Phy event counters DMA Setup Auto-Activate optimization * Software settings preservation * SMART Command Transport (SCT) feature set * SCT Long Sector Access (AC1) * SCT LBA Segment Access (AC2) * SCT Error Recovery Control (AC3) * SCT Features Control (AC4) * SCT Data Tables (AC5) unknown 206[12] (vendor specific) unknown 206[13] (vendor specific) Security: Master password revision code = 65534 supported not enabled not locked frozen not expired: security count supported: enhanced erase 84min for SECURITY ERASE UNIT. 84min for ENHANCED SECURITY ERASE UNIT. Logical Unit WWN Device Identifier: 50014ee101cedc24 NAA : 5 IEEE OUI : 0014ee Unique ID : 101cedc24 Checksum: correct --------------000701080508030200040103 Content-Type: text/plain; name="mdadm.out" Content-Transfer-Encoding: 7bit Content-Disposition: inline; filename="mdadm.out" /dev/md0: Version : 0.90 Creation Time : Mon Jul 27 22:38:26 2009 Raid Level : raid1 Array Size : 102336 (99.95 MiB 104.79 MB) Used Dev Size : 102336 (99.95 MiB 104.79 MB) Raid Devices : 4 Total Devices : 4 Preferred Minor : 0 Persistence : Superblock is persistent Update Time : Mon Sep 21 11:02:14 2009 State : clean Active Devices : 4 Working Devices : 4 Failed Devices : 0 Spare Devices : 0 UUID : 9037def2:035b0d10:bfe78010:bc810f04 Events : 0.44 Number Major Minor RaidDevice State 0 8 1 0 active sync /dev/sda1 1 8 17 1 active sync /dev/sdb1 2 8 33 2 active sync /dev/sdc1 3 8 49 3 active sync /dev/sdd1 /dev/md1: Version : 0.90 Creation Time : Mon Jul 27 22:38:28 2009 Raid Level : raid1 Array Size : 4095936 (3.91 GiB 4.19 GB) Used Dev Size : 4095936 (3.91 GiB 4.19 GB) Raid Devices : 4 Total Devices : 4 Preferred Minor : 1 Persistence : Superblock is persistent Update Time : Mon Sep 21 11:02:14 2009 State : clean Active Devices : 4 Working Devices : 4 Failed Devices : 0 Spare Devices : 0 UUID : 642c2833:bf033a7d:bfe78010:bc810f04 Events : 0.44 Number Major Minor RaidDevice State 0 8 2 0 active sync /dev/sda2 1 8 18 1 active sync /dev/sdb2 2 8 34 2 active sync /dev/sdc2 3 8 50 3 active sync /dev/sdd2 /dev/md2: Version : 0.90 Creation Time : Mon Jul 27 22:38:30 2009 Raid Level : raid1 Array Size : 484185536 (461.76 GiB 495.81 GB) Used Dev Size : 484185536 (461.76 GiB 495.81 GB) Raid Devices : 4 Total Devices : 4 Preferred Minor : 2 Persistence : Superblock is persistent Update Time : Mon Sep 21 11:02:24 2009 State : clean Active Devices : 4 Working Devices : 4 Failed Devices : 0 Spare Devices : 0 UUID : ce106d52:0c0373f7:bfe78010:bc810f04 Events : 0.66 Number Major Minor RaidDevice State 0 8 3 0 active sync /dev/sda3 1 8 19 1 active sync /dev/sdb3 2 8 35 2 active sync /dev/sdc3 3 8 51 3 active sync /dev/sdd3 --------------000701080508030200040103--