HP小型机预防性保护

1、HP效劳器预防性保护1. 指示灯状态错误!未定义书签。2. 分区状态(仅限于cell-based系统) 错误!未定义书签。3. 内存(dmesg/cstm) 错误!未定义书签。4. 磁盘(ioscan -fnkCdisk) 错误!未定义书签。5. I/O (ioscan 一fnk) 错误!未定义书签。6. 网络(#ioscan -nfkClan, #lanscan, #neistat -in) 错误！未定义书签。7. dmesg输出错误!未定义书签。8. 系统启动日记错误!未定义书签。9. 系统运行日记 错误!未定义书签。10. 系统shutdown日记 错误！未定义书签。11. 系统事件日记

2、 错误!未定义书签。12. 文件系统错误!未定义书签。13. 系统近期有无HPMC 错误!未定义书签。14. 系统近期有无Core Dump 错误!未定义书签。15. 根盘镜像状态 错误!未定义书签。16. 集群的运行状态错误!未定义书签。17. CPU平均利用率(#sar )错误!未定义书签。18. 空闲的物理内存(#top ) 错误!未定义书签。19. 互换区利用情形(ttswapinfo-atm) 错误!未定义书签。20. 系统核心资源利用情形(#sar-v) 错误!未定义书签。1 .指示灯状态效劳器各个部件都会有指示灯，一样绿灯属于部件正常，黄灯和红灯就有故常。Figure 5-2Fr

3、ont Panel with LED IndicatorsI| Attentbn| Remote| Standby PowerI I RunII FaultII MP PresentII PowerjBPS LEDs2 .分区状态（仅限于cell-based系统）在操作系统上还能够用parstatus命令来检查Cell状态，RIO connection等。以 下是一个正常输出的例子： sisdba/model ia64 hp server rx7620 sisdba/parstatusNote: No action specified. Default behavior is display

4、all.ComplexComplex Name : Complex 01Complex CapacityCompute Cabinet (2 cell capable) : 1Active MP Location : cabinet 0Original Product Name : server rx7620Original Serial Number : 5GH434934T Current Product Order Number : A7027A OEM Manufacturer :Complex Profile Revision :The total number of partiti

5、ons present : 1CabinetCabinetI/OBulk PowerBackplaneBlowersFansSuppliesPower BoardsOK/OK/OK/OK/CabFailed/Failed/Failed/Failed/Num Cabinet TypeN StatusN StacusN StatusN StatusMP02 cell slot4/0/N+6/0/N+2/0/N+-ActiveNotes: N+ = There are one or more spare items fans/power supplies). N = The number of it

6、ems meets but does not exceed the need. N- = There are insufficient items to meet the need.? = The adequacy of the cooling system/pox<er supplies is unknown. HO = Housekeeping only; The power is in a standby state.NA = Not Applicable.CellCPUMemoryUseOK/(GB)CoreOnHardwareLocationActualDeconf/ OK/C

7、ellNext ParUsageMaxDeconfConnected ToCapable Boot NumcabO,cellO cabO,celllAbsent-Active Core 2/0/4cabO,bayO,chassisl yesyes 0Notes: * = Cell has no interleaved memory.ChassisCoreConnectedParHardware LocationUsage10ToNumcabOz bayOf chassisOPowered off ?cabOz bayOf chassis1ActiveyescabO celll0Partitio

8、nPar# of # of I/ONum StatusCells Chassis Core cell Partition Name (first 30 chars)0 Active11cabO,celll Partition 03 .内存(dmesg/cstm)#dmesgMemory Information:physical page size = 4096 bytes, logical page size = 4096 bytesPhysical: Kbytes, lockable: Kbytes, available: Kbytes物理内存物/#cstm用map命令列出硬件列表，用sei

9、 dev 2选中内存项，然后用il显示 内存信息。webb/cstmRunning Command File (/usr/sbin/slni/ui/config/.slmrc).-Information 一Support Tools ManagerVersion Number B4708AA (C) Copyright Hewlett Packard Co. 1995-2005All Rights Resen-edUse of this program is subject to ihe licensing restrictions described in Help->On Versi

10、on'*. HP shall not be liable for any damages resulting from misuse or unauthorized use of this program.cstni>cstni>mapwebbDevLast Last OpNum PathProductActive Tool Status1 systemsystem (1003)Information Successful2 memoryIPF_MEMORY (1003) Information Successful3 0Bus Adapter (103c 1229) In

11、formation Successful4 0/0PCI Bus Adapter (103c 122e Information Successful5 0/0/1/0RS-232 Interface (103c 129 Information Successful6 0/0/1/1RS-232 Interface (103cl04 Information Successful7 0/0/2/0PCI SCSI Interface (10000 Information Successful8 0/0/2/SCSI Disk Information Successful9 0/0/2/SCSI D

12、isk Information Successful10 0/0/2/1PCI SCSI Interface (10000 Information Successful11 0/0/2/Optical Storage Device (H Information Warning12 0/0/4A)PCI Bus Adapter (8086b 154 Information Successful13 0/0/4/0/4/0USB Open Host Controller14 0/0/4A)/4ZGeneric USB Interface (6015 0/0/4AJ/4/1USB Open Host

13、 Controller16 0/0/4A)/4/2USB Enhanced Host Control17 0/0/4A)/5/0Graphics Interface (GRAPH Information Warning18 0/1PCI Bus Adapter (103c 122e Information Successful19 0/1/lA)PCI Bus Adapter (101401a7 Information Successful20 0/1/1/0/1/0PCI SCSI Interface (10000 Information Successful21 0/1/1A)/!/SCS

14、I Tape (HPC5683A)222324252627282930313233343536373839404142434445464748O/1/1A)/1/1 0/1/1A)/!/ 0/1/1A)/1/ 0/1/1/0/4/0 0/2 0/2/1A) 0/3 0/3/0 0/4 0/5 0/5/1A) 0/5/1/PCI SCSI Interface (10000 Information Successful SCSI Disk Information SuccessfulSCSI Disk Information SuccessfulCore PCI lOOOBase-T Link I

15、nformation Successful PCI Bus Adapter (103c 122e Information Successful PCI Gigabit Ethernet Link Information Successful PCI Bus Adapter (103c 122e Information Successful PCI Gigabit Ethernet Link Information Successful PCI Bus Adapter (103c 122e Information Successful PCI Bus Adapter (103c 122e Inf

16、ormation Successful Fibre Channel Interface (Information SuccessfulFibre Channel Driver (Mas0/5/1/ Virtual Array 7110 (HPA610/5/1/ Virtual Array 7110 (HPA610/5/1/Fibre Channel Driver (Mas0/5/1/SCSI Tape (HPUltrium)0/5/1/SCSI Device (HPNS) 0/5/1/ Virtual Array 7110 (HPA610/5/1/Fibre Channel Driver (M

17、as0/5/1/ Virtual Array 7110 (HPA610/60/7120121250250/0250/1PCI Bus Adapter (103c 122e Information SuccessfulPCI Bus Adapter (103c 122e Information SuccessfulCPU (1003)CPU (1003)Core I/O Adapter (fffffffIPMI Controller ( Information SuccessfulACPI Device () Information Successfulcslni>sel dev 2csl

18、ni>il-Converting a (3300) byte raw log file to text.-Preparing the Information Tool Log for IPF_MEMORY on path memory File .-Information Tool Log for IPF_MEMORY on path memory 一Log creation time: Sun Jul 17 23:03:21 2020Hardware path: memoryBasic Memory DescriptionModule Type: MEMORYPage Size: 40

19、96 BytesTotal Physical Memory: N/ATotal Configured Memory: 10240 MBTotal Deconfigured Memory: N/AMemory Board InventoryDIMM Location Size(MB) DIMM Location Size(MB)Ext 0 DIMM 0A1024Ext 0 DIMM 0B1024Ext 0 DIMM 0C1024Ext 0 DIMM 0D1024Ext 0 DIMM 1A512Ext 0 DIMM IB512Ext 0 DIMM IC512Ext 0 DIMM ID512Ext

20、0 DIMM 2A256Exl 0 DIMM 2B256Ext 0 DIMM 2C256Ext 0 DIMM 2D256Ext 0 DIMM 3A256Ext 0 DIMM 3B256Ext 0 DIMM 3c256Exl 0 DIMM 3D256Ext 0 DIMM 4A256Ext 0 DIMM 4B256ExtO DIMM 4CExt 0 DIMM 5AExt 0 DIMM 5C256ExtO DIMM 4D256Ext 0 DIMM 5B256Ext 0 DIMM 5DExlOTolal: 10240 (MB)Memory Error Log SummaryThe memory err

21、or log is empty.Page Deallocation Table (PDT)The Page Deallocation Table is empty.46： 1 H0K7mStandard inputPress space to continue, q to quit, h for helpm46:1 H|46:1 H|0KPDT Entries Used: 0PDT Entries Free: 100PDT Total Size: 100有报错：Memory Error Log SummaryDIMM Location Error Address Error Type Page

22、 CountCab 0 Cell 1 DIMM 3A 0x0 Single-Bit 0x334271假设那个数值比较大就建议跟换内存System start: Tue Mar 22 23:18:43 2020.Last error detected: Tue Mar 22 23:18:43 2020.Logging interval: 900 seconds.1 address(es) with errors logged in memory error log.The Logtool Utility provides full details about the memory error l

23、og.4.磁盘(ioscan -fnkCdisk)#ioscan -fnCdisk I moreClass I H/W Path Driver SAV State H/W Type Descriptiondisk00/0/1/ sdisk CLAIMED DEVICE/dev/dsk/c lt2dO /dev/rdsk/c lt2dOSEAGATE ST39204LCdisk10/0/2/ sdisk CLAIMED DEVICEZdev/dsk/c3t2d0 /dev/rdsk/c3t2doHPDVD-ROM 305disk20/6/0/ sdisk CLAIMEDDEVICE/dev/ds

24、k/c8t0d0 /de7rdsk/c8t0d0HP A6189Bdisk30/6/0/ sdisk CLAIMEDDEVICEHP A6189Bdisk 4 0/6/0/ sdisk CLAIMED DEVICE HP A6189B /dev/dsk/c8t0d2 /dev/rdsk/c8t0d2diskdiskdiskA6189BA6189BA6189B5 0/6/0/ sdisk CLAIMED DEVICE HP /dev/dsk/c 1 OtOdO /dev/rdsk/c 1 OtOdO6 0/6/0/ sdisk NO_HW DEVICE HP /dev/dsk/c 1 OtOd

25、1 /dev/rdsk/c 1 OtOd 17 0/6/0/ sdisk NO.HW DEVICE HP /dev/dsk/c 1 OtOd2 /dev/rdsk/c 1 OtOd2在上面的例子中，磁盘状态是“N0_HW ”代表此盘在主机最初启动时是正常的, 可被系统正常访问；但此刻系统核心已找不到那个物理盘体。造成此状态的具体缘故有可能是：1 .物理磁盘损坏。2 .到那个磁盘的硬件连接通道有问题（SCSI卡，SCSI线，光纤卡，光纤 线，光纤互换机）。3 .那个磁盘被在线移掉。5. 1/0 (ioscan -fnk)#ioscan -fn I moreClassIH/W PathDriver

26、 S/W State H/W TypeDescriptionroot0rootCLAIMEDBUS_NEXUSioa0Adapt er (582)0sbaCLAIMEDBUS_NEXUS System Busba0Ad apter (782)0/0IbaCLAIMEDBUS_NEXUSLocal PCI Buslan010/100Bas e-TX Core0/0/0/0btlanCLAIMEDINTERFACE HP PCI/dev/diag/lan0 /dev/ether0/dev/lan0ext-bus0 0/0/1/0UltraWide Single-Endedc720CLAIMEDIN

27、TERFACESCSI C896target00/0/1/tgtCLAIMEDDEVICEtape00/0/1/stapeNO_HWDEVICEHPC1537Atarget10/0/1/tgtCLAIMEDDEVICEctl00/0/1/sctlCLAIMEDDEVICEInitiator/dev/rscsi/c0t7d0target20/0/1/tgtCLAIMEDDEVICEctl10/0/1/sctlCLAIMEDDEVICEInitiator/dev/rscsi/clt7d0target30/0/1/tgtCLAIMEDDEVICEdisk00/0/1/sdiskCLAIMEDDEVI

28、CESEAGATE ST318404LC/dev/dsk/cltl5d0 /dev/rdsk/cltl5d0ext_bus20/0/2/。c720CLAIMEDINTERFACESCSI C87xWide Single-Endedtarget40/0/2/tgtCLAIMEDDEVICEdisk10/0/2/sdiskCLAIMEDDEVICEHPDVD-ROM305/dev/dsk/c2t3d0 /dev/rdsk/c2t3d0target50/0/2/tgtCLAIMEDDEVICEctl20/0/2/sctlCLAIMEDDEVICEInitiator/dev/rscsi/c2t6d0e

29、xt_bus30/0/2/1c720CLAIMEDINTERFACESCSI C87xUltraWide Single-Endedtarget60/0/2/tgtCLAIMEDDEVICEctl30/0/2/sctlCLAIMEDDEVICEInitiator/dev/rscsi/c3t7d0target70/0/2/tgtCLAIMEDDEVICEdisk20/0/2/sdiskCLAIMEDDEVICEHP3_36_SCA/dev/dsk/c3tl5d0 /dev/rdsk/c3tl5d0unknown-1e/e/3/eUNCLAIMED UNKNOWNPCItty00/0/4/easio

30、0CLAIMEDINTERFACEPCI Serial(103c1048)/dev/GSPdiagl/dev/mux0/dev/tty0pl/dev/diag/mux0 /dev/tty0p0/dev/tty0p2tty10/0/5/easio0CLAIMEDINTERFACEPCI Serial(103c1048)/dev/GSPdiag2 /dev/muxl/dev/diag/muxl /dev/ttylplmemory08memory CLAIMEDMEMORYMemoryprocessor0160processor CLAIMEDPROCESSOR ProcessorWide Sing

31、le-EndedFastext_busUltra1 0/0/1/1c720CLAIMEDINTERFACESCSI C896在“ioscan-fn ”的输出结果中，造成I/O设备的状态是Unclaimed或Unknown的缘故是：1 .此设备的Driver没有加载到核内心；因此操作系统无法识别和驱动那个I/O设备。2,也可能是由于没有安装相应I/O设备的Patch.在“ioscan -fn ”的输出结果中，I/O设备的状态是“O_HW "代表此I/O外 设在主机最初启动时是正常的，可被系统正常访问；但此刻系统核心已找不到 那个I/O设备。L I/O设备物理损坏°2 .到那个

32、I/O外设的硬件连接通道有问题。3 .那个I/O外设被在线移掉（例如：磁带机，DVD-ROM被在线拔 走）。6. 网络(#ioscan -nfkClan, Itlanscan, ffneistat -in)效劳器网络部份的检查，可分三步进行：1 .用命令#ioscan-nfCkm,确认所有网络设备（网卡）的状态都是“ Claimed "。Class I H/W Path Driver S/W State H/W Type Description lan 0 0/0/0/0 btlan CLAIMED INTERFACE HP PCI 10/100Base-TX Core /dev/d

33、iag/lan0 /dev/ether0 /dev/lan02 .用命令#lanscan查看网卡是不是启动。Hardware StationCrdHdwNet-InterfaceNMMACPathAddressIn#StateNamePPAIDType0/0/0/0 0X00306E0C194A 0弋UPJan0 snap01ETHER硬件*径网卡'mac地址网卡刖状态：UP启动DOWN -未启动HP-DLPI DLPISupport Mjr#Yes 1193 .用命令netstat -in确认网络地址及状态。Name Mtu Network Address Ipkts Opkts10

34、04136838838lan01500160952111715网卡号（有*说明IP层不通） 子网地址IP地址 接收包数量 发送包数量7. dmesg 输出运行命令dmesg是一个即简单乂快捷的方式来查看系统硬件及文件系统有无报 错。dmesg的工作原理是直接从系统的缓冲器(buffer)中读取系统最近一段时期 内的硬件状态。命令dmesg的缺点是输出结果中没有时刻标志，同时因为缓冲器的容量有限， 近期的内容会覆盖缓冲器里以前的内容。效劳器没有硬件报错时，dmesg的标准输出是：May 14 10:38gate64: sysvec_vaddr = 0xc0002000 for 2 pagesNO

35、TICE: autofs_link(): File system was registered at index 3. NOTICE: cachefs_link(): File system was registered at index 5. NOTICE: nfs3_link(): File system was registered at index 6. 0 sba 0/0 Iba 0/0/0/0 btlan 0/0/1/0 c720 0/0/1/ tgt 0/0/1/ sctl 0/0/1/1 c720 0/0/1/ tgt 0/0/1/ sdisk 0/0/1/ tgt 0/0/1

36、/ sctl 0/0Z2/0 c720 0/0/2/ tgt 0/0/2/ sctl 0/0/2/1 c720 0/0/2/ tgt 0/0/2/ sdisk 0/0/2/ tgt 0/0/2/ sctl 0/0/4/0 asio0 0Z0/5/0 asio0 0/1 Iba 0/2 Iba 0/2/0/0 c720 0/2/0/ tgt 0/2/0/ schgr 0/2/0/ tgt 0/2/0/ stape 0/2/0/ tgt 0/2/0/ sctl 0/3 Iba 0/4 Iba c8xx BUS: 5 SCSI C1010 Ultra Wide LVD assigned CPU: 0

37、 0/4/0/0 c8xx 0/4/0/ tgt 0/4/0/ sctl 0/5 Iba 0/5/0/0 c720 0/5/0/ tgt 0/5/0/ stape 0/5/0/ tgt 0/5/0/ sctl 0/6 Iba 0/6/0/0 td td: claimed Tachyon XL2 Fibre Channel Mass Storage card at 0/6/0/0 0/6/0/ fcp 0/6/0/ fcparray 0/6/0/ tgt 0/6/0/ sdisk 0/6/0/ sdisk 0/6/0/ sdisk 0/6/0/ fcparray0/6/0/ tgt0/6/0/

38、sdisk0/6/0/ sdisk0/6/0/ sdisk0/6/0/ fcpdev0/6/0/ tgt0/6/0/ sctl0/7 Ibac8xx BUS: 7 SCSI C1010 Ultra Wide LVD assigned CPU: 10/7/0/0 c8xx0/7/0/ tgt0/7/0/ sctl8 memory160 processor166 processorbtlan: Initializing 10/108BASE-TX card at 0/0/0/0.System Console is on the Built-In Serial InterfaceLogical vo

39、lume 64, 0x3 configured as ROOTLogical volume 64, 0x2 configured as SWAPLogical volume 64, 0x2 configured as DUMPSv/ap device table: (start & size given in 512-byte blocks)entry 0 - major is 64, minor is 0x2; start = 0) size = 5242880Dump device table: (start & size given in 1-Kbyte blocks)e

40、ntry 0000000000000000 - major is 31, minor is 0x12000; start = 310112, size = 2621440Starting the STREAMS daemons-phase 1Create STCP device filesStarting the STREAMS daemons-phase 2Revision: vmunix:wj: -proj selectors: CUPI80_BL2000_1108 -c *Vwfor CUPI80_BL2000_1108 build1 - cupi80.bl2000.1108 '

41、CUPI80_BL2000-1108, Wed N ov 8 19:24:56 PST 2000 $Memory Information:physical page size = 4096 bytes, logical page size = 4096 bytesPhysical: 1310720 Kbytes, lockable: 1127096 Kbytes, available: 1091104 Kbytes咱们查看dmesg的输出时，应着重观看有无类似"SCSI ResetDisk Power Failed”, “PV path ”,“LPMC”, “file system

42、full”等报错信息。若是有，能够在系 统的syslog中进一步确信错误发生的时刻，从而对所报错误进行定位（如有必 要，可联系HP响应中心）。8 .系统启动日志系统的启动日记是指文件：/etc/ .咱们能够用vi命令进行查看，看/etc/日记中有没有”Fail"或"error"；若是有，就 代表系统在启动时相应的启动脚本运行失败。9 .系统运行日志系统的运行日记是指文件：/var/adm/syslog/. 查看日记中有无"SCSI Reset”，“Disk Power Failed”, “PV path. “LPMC”, “file system ful

43、l”, “Fail”, “Error"，“Waming”等错误信息。若是有，请依照体会给出合 理的说明；若是有EMS log,能够依照其提示的命令看具体的内容；10 .系统shutdown日志系统的shutdown日记(/etc/shutdownlog)记录了系统所有停止,重启的时刻。07:35 07:3700:01 00:04 17:1721:33 17:35Sat May 11, 2002.Sat May 11, 2002.Sun May 12, 2002.Sun May 12, 2002.Thu May 30, 2002.Thu May 30, 2002.Fri Apr 30,

44、 2004.Reboot: Reboot: Reboot: Reboot: Reboot: Reboot: Halt:(by SAM)(by asogz3!root)(by SAM)(by(by asogz3!oracle9i)(by asogz3!root)11.系统事件日志系统在运行中发生的一些事件。(/var/opt/resmon/log/Event Monitoring Service Event NotificationNotification Time: Mon Jul 4 04:31:09 2020sisdba sent Event Monitor notification in

45、ition:/adapters/events/TL_adapter/l_0_10_l_0 is Its current value is INFORf>lATION(l).事件发生的时刻Event data from monitor:Event Time Severity. Monitor. Event #:Mon Jul 4 04:31:09 2020:INFORMATION:dm_TL_adapter：24事件品级：INFORMATION 忽略，MAJORfARNING, CRITICAL, SERIOUS 注意System:Summary:Adapter at hardware p

46、ath 1/0/10/1/0 : Received a FCP Assists Frozen completion messageDescription of Error:Ibolt value: 9The Fibre Channel Driver received a FCP assists frozen completion messageProbable Cause / Recommended Action:The Tachyon TL adapter generated an interrupt indicating that the FCP Assists have been fro

47、zen. This is caused by the driver requesting the Tachyon TL chip to freeze the FCP Assists.No action required. Informative message. The driver will recover from this conditionAdditional Event Data:System IP Address.:Event Id: 0x4el0dl8d00000006Monitor Version:Event Class: I/OClient Configuration Fil

48、e:/var/stm/config/tools/monitor/Client Configuration File Version.:Qualification criteria met.Number of events.: 1Associated OS error log entry id(s):0x4el0dl8c00000003Additional System Data:System Model Number: ia64 hp serverrx7620OS Version:EHS Version:STM Version:Latest information on this event:

49、DETAILS v-v-v-v-v-v-v-v-v-v-v-v-vComponent Data:Physical Device Path.: 1/0/10/1/0Vendor Id:0X0000103CSerial Number(lN): 50060B0000244392I/O Log Event Data:0X000000180 bytes.0 bytes.61 bytes.Driver Status Code:Length of Logged Hardware Status.: Offset to Logged Manager Information: Length of Logged M

50、anager Information:Manager-Specific Information:Raw data from FCMS Adapter driver:00000006 22B0808D 00000000 00000001 2F75782F 636F7265 2F697375 2F544C2F6B65726E 2F737263 2F636F6D 6D6F6E2F 7773696F 2F74645F 6973722E 63End Event Monitoring Service Event Notification12.文件系统sisdba/lbdf Filesystem /dev/

51、vg00/lvol3 /dev/vgOO/lvol 1 /de7vg00/lvol7 /de7vg00/lvol8 /dev/vg00/lvol6用命令bdf查看文件系统的利用情形，若是有文件系统的利用率超过90%,需要 处置，删除不用的文件或如有需要就要扩文件系统。kbytes used avail %used Mounted on1081344 607344 470328 56%/2097152 207496 1874976 10%/skmd4833280 3243296 1577752 67%/var8388608 3627016 4724400 43% /usr2162688 1774

52、104 385584 82% /tmp/dev/vgOO/lvoracle 2922063 81 % /oracle/dev/vgsis_archvl /fs_sisdb_archv3374193 17% /ora_arch/dev/vgOO/lvol55000928 5442104 48% /opt/dev/vg00/lvol4 8388608 708568 7620160 9%/home/de7vgsis_trs l/fs_trsdata4546086 23% /liome/trs/trsdata/dev/odm000 0% /dev/odm/dev/vgsis_nfs 1 /fs_nfs

53、28% /nfs /dev/vg_nfs/fs_nfs 7128645 65% /trstmp13 .系统近期有无HPMC查看系统近期有无HPMC (MCA)的方式是：检查/var/tombstones下是不是有近期生成的文件，其中YYMMDDHHMMDDHHMM为生成MCA的时刻，C为产生MCA的CPU号。14 .系统近期有无Core Dump查看系统近期有无Core Dump的方式是:#cd /var/adm/crash#11total 40-rwxr-xr-x1rootrootdrwxr-xr-x2rootrootdrwxr-xr-x2rootrootdrwxr-xr-x2rootrootdrwxr-xr-x2rootroot1 May 302002 bounds4096 Apr 809:594096 Apr 110:024096 Mar 910:044096 Mar 210:064存刻在DUMP的子目录中的INDEX文件中dumptime和savetime会更精准地指 出dump发生及存储的时刻。15.根盘镜像状态用命令#vgdisplay-