imb服务器怎么拆硬盘,IBM P750更换本地硬盘

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1、确认故障主机报警和硬盘

ERPES01@ /> errpt -dH |more

IDENTIFIER TIMESTAMP T C RESOURCE_NAME DESCRIPTION

80D3764C 0301180416 U H LVDD PV NO LONGER RELOCATING NEW BAD BLOCKS

E86653C3 0301180416 P H LVDD I/O ERROR DETECTED BY LVM

747725D9 0301180416 P H hdisk0 DISK OPERATION ERROR

查看LV在哪一个PV上

ERPES01@ /> lspv -l hdisk36

hdisk36:

LV NAME LPs PPs DISTRIBUTION MOUNT POINT

hd3 40 40 00..40..00..00..00 /tmp

hd9var 40 40 00..40..00..00..00 /var

hd10opt 40 40 40..00..00..00..00 /opt

hd1 40 40 40..00..00..00..00 /home

livedump 2 2 02..00..00..00..00 /var/adm/ras/livedump

hd11admin 40 40 15..25..00..00..00 /admin

hd5 1 1 01..00..00..00..00 N/A

hd8 1 1 00..00..01..00..00 N/A

hd6 4 4 00..04..00..00..00 N/A

hd2 144 144 00..00..00..57..87 /usr

hd4 160 160 00..00..108..52..00 /

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ERPES01@ /> lspv -l hdisk0

hdisk0:

LV NAME LPs PPs DISTRIBUTION MOUNT POINT

hd3 40 40 39..00..01..00..00 /tmp

hd9var 40 40 37..00..03..00..00 /var

hd10opt 40 40 00..00..03..00..37 /opt

hd1 40 40 24..00..01..00..15 /home

livedump 2 2 00..02..00..00..00 /var/adm/ras/livedump

hd11admin 40 40 00..00..01..00..39 /admin

lg_dumplv 16 16 00..16..00..00..00 N/A

hd5 1 1 01..00..00..00..00 N/A

hd8 1 1 00..00..01..00..00 N/A

hd6 4 4 00..04..00..00..00 N/A

hd2 144 144 09..10..16..109..00 /usr

hd4 160 160 00..77..83..00..00 /

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2、检查故障硬盘位hdisk0上LV都进行镜像除了lg_dumplv，必须迁移lg_dumplv到hdisk1上。

有没有镜像看PVS数量是否为2，如果PVS是2说明LV分布在两个pv上就是两块hdisk上

还有看LV的PPS数量应该是LPS的2倍

boot分区是启动引导分区状态为closed的 LV状态为syncd说明已经同步完成，stale需要同步。

ERPES01@ />migratepv -l lg_dumplv hdisk0 hdisk1

ERPES01@ />lsvg -l rootvg

rootvg:

LV NAME TYPE LPs PPs PVs LV STATE MOUNT POINT

hd5 boot 1 2 2 closed/syncd N/A

hd6 paging 100 200 2 open/syncd N/A

hd8 jfs2log 1 2 2 open/syncd N/A

hd4 jfs2 20 40 2 open/syncd /

hd2 jfs2 50 100 2 open/syncd /usr

hd9var jfs2 108 216 2 open/syncd /var

hd3 jfs2 50 100 2 open/syncd /tmp

hd1 jfs2 1 2 2 open/syncd /home

hd10opt jfs2 30 60 2 open/syncd /opt

hd11admin jfs2 1 2 2 open/syncd /admin

lg_dumplv sysdump 106 106 1 open/syncd N/A //没有镜像PV数量就是1

livedump jfs2 1 2 2 open/syncd /var/adm/ras/livedump

fslv00 jfs2 20 40 2 open/syncd /export/spot

es1oracle jfs2 20 40 2 open/syncd /oracle

es1usrsap jfs2 40 80 2 open/syncd /usr/sap

sapbackup jfs2 8 16 2 open/syncd /sapbackup

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3、在hdisk0上去掉引导信息

ERPES01@ />chpv -c hdisk0

4、删除rootvg的hdisk0镜像

ERPES01@ />unmirrorvg rootvg hdisk0

拆除镜像后所有LV的PV数量都只有1个

ERPES01@ />lsvg -l rootvg

rootvg:

LV NAME TYPE LPs PPs PVs LV STATE MOUNT POINT

hd5 boot 1 1 1 closed/syncd N/A

hd6 paging 100 100 1 open/syncd N/A

hd8 jfs2log 1 1 1 open/syncd N/A

hd4 jfs2 20 20 1 open/syncd /

hd2 jfs2 50 50 1 open/syncd /usr

hd9var jfs2 108 108 1 open/syncd /var

hd3 jfs2 50 50 1 open/syncd /tmp

hd1 jfs2 1 1 1 open/syncd /home

hd10opt jfs2 30 30 1 open/syncd /opt

hd11admin jfs2 1 1 1 open/syncd /admin

lg_dumplv sysdump 106 106 1 open/syncd N/A

livedump jfs2 1 1 1 open/syncd /var/adm/ras/livedump

fslv00 jfs2 20 20 1 open/syncd /export/spot

es1oracle jfs2 20 20 1 open/syncd /oracle

es1usrsap jfs2 40 40 1 open/syncd /usr/sap

sapbackup jfs2 8 8 1 open/syncd /sapbackup

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5、从rootvg卷组上删除hdisk_0

ERPES01@ />reducevg rootvg hdisk0

ERPES01@ />lspv |more

hdisk0 none None

hdisk1 00f7c45cd89e7d3d rootvg active

hdisk2 none VeritasVolumes

6、该小型机上部署了Veritas Storage Foundation，在veritas上查看hdisk0对应的设备，查看本地磁盘设备。

ERPES01@ />vxdisk list|pg

DEVICE TYPE DISK GROUP STATUS

disk_0 auto:LVM – – LVM

disk_1 auto:LVM – – LVM

storwizev70000_000000 auto:cdsdisk san_vc0_0 ep01dg online shared

storwizev70000_00000a auto:cdsdisk san_vc0_10 ep01dg online shared

storwizev70000_00000b auto:cdsdisk san_vc0_11 ep01dg online shared

storwizev70000_00000c auto:cdsdisk san_vc0_12 ep01dg online shared

查看veritas下disk_1和操作系统的hdisk0对应关系

ERPES01@ />vxdisk list disk_1

Device: disk_1

devicetag: disk_1

type: auto

info: format=LVM

flags: LVM error private autoconfig

pubpaths: block=/dev/vx/dmp/disk_1 char=/dev/vx/rdmp/disk_1

guid: –

udid: IBM%5FHUC106030CSS600%5FDISKS%5F5000CCA025387860

site: –

errno: Disk is not useable, bad format

Multipathing information:

numpaths: 1

hdisk0 state=enabled //对应hdisk0

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7、删除hdisk0，在veritas层面删除disk_1和操作系统层面从ODM库删除hdisk0

ERPES01@ />vxdisk rm disk_1

如果不操作会报错如下

ERPES01@ />rmdev -dl hdisk

rmdev: 0514-519 The following device was not found in the customized

device configuration database:

name = ‘hdisk’

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ERPES01@ />rmdev -Rdl hdisk0

8、通过diag进入判断硬盘的位置

#smitty diag>

#Task Selection>

#Hot Plug Task>

#SCSI and SCSI RAID Hot Plug Manager>

#Identify a Device Attached to a SCSI Hot Swap Enclosure Device>

#hdiskX

此时hdiskX的硬盘会亮红灯

9、通过diag进行更换前准备检查硬盘是否为更换状态

ERPES01@ />diag

->Task Selection (Diagnostics, Advanced Diagnostics, Service Aids, etc.)

->Hot Plug Task

->SCSI and SCSI RAID Hot Plug Manager

->Replace/Remove a Device Attached to an SCSI Hot Swap Enclosure Device

Make selection, use Enter to continue.

U78A0.001.DNWKP5C-

ses0P2-Y2

ses1 P2-Y1

slot 1 P2-D3 hdisk0

slot 2 P2-D4 hdisk1

U78A0.001.DNWKP5C-

ses2 P2-Y1

slot 2 P2-D2 cd0

U78A0.001.DNWKP5C-

ses0 P2-Y2

ses0 P2-Y2

ses1 P2-Y1

ses1 P2-Y1

slot 1 P2-D3 hdisk0 //是否显示为可替换状态

10、diag若显示更换状态，对硬盘进行更换操作

从新扫描cfgmgr和lspv显示

ERPES01@ />cfgmgr -l sas0 //扫描disk的父设备

ERPES01@ />lspv

hdisk0 00f7c45c94883387 None

hdisk1 00f7c45cd89e7d3d rootvg active

hdisk2 none VeritasVolumes

hdisk3 none VeritasVolumes

11、把hdisk0加入到rootvg磁盘组

ERPES01@ />extendvg rootvg hdisk0

12、进行LV同步使用大S后台进行镜像同步，iostat观察hdisk0与hdisk1的IO情况。

ERPES01@ />mirrorvg -S rootvg hdisk0

0516-1804 chvg: The quorum change takes effect immediately.

0516-1126 mirrorvg: rootvg successfully mirrored, user should perform

bosboot of system to initialize boot records. Then, user must modify

bootlist to include: hdisk0 hdisk1.

ERPES01@ />lsvg -l rootvg

rootvg:

LV NAME TYPE LPs PPs PVs LV STATE MOUNT POINT

hd5 boot 1 2 2 closed/syncd N/A

hd6 paging 100 200 2 open/stale N/A

hd8 jfs2log 1 2 2 open/stale N/A

hd4 jfs2 20 40 2 open/stale /

hd2 jfs2 50 100 2 open/stale /usr

hd9var jfs2 108 216 2 open/stale /var

hd3 jfs2 50 100 2 open/stale /tmp

hd1 jfs2 1 2 2 open/stale /home

hd10opt jfs2 30 60 2 open/stale /opt

hd11admin jfs2 1 2 2 open/stale /admin

lg_dumplv sysdump 106 106 1 open/syncd N/A

livedump jfs2 1 2 2 open/stale /var/adm/ras/livedump

fslv00 jfs2 20 40 2 open/stale /export/spot

es1oracle jfs2 20 40 2 open/stale /oracle

es1usrsap jfs2 40 80 2 open/stale /usr/sap

sapbackup jfs2 8 16 2 open/stale /sapbackup

ERPES01@ />iostat 2 3 //观察IO情况

System configuration: lcpu=20 drives=159 paths=2 vdisks=0

tty: tin tout avg-cpu: % user % sys % idle % iowait

0.0 30.2 3.1 2.7 89.7 4.5

Disks: % tm_act Kbps tps Kb_read Kb_wrtn

hdisk1 27.0 73523.1 71.8 148480 0

hdisk0 69.5 73523.1 71.8 0 148480

并检查rootvg是否把quorum进行disable

ERPES01@ />lsvg rootvg

VOLUME GROUP: rootvg VG IDENTIFIER: 00f7c45c00004c0000000139336e70e3

VG STATE: active PP SIZE: 512 megabyte(s)

VG PERMISSION: read/write TOTAL PPs: 1116 (571392 megabytes) //PP大小数量核对

MAX LVs: 256 FREE PPs: 108 (55296 megabytes)

LVs: 16 USED PPs: 1008 (516096 megabytes)

OPEN LVs: 15 QUORUM: 1 (Disabled) //quorum进行disable

TOTAL PVs: 2 VG DESCRIPTORS: 3

STALE PVs: 0 STALE PPs: 0

ACTIVE PVs: 2 AUTO ON: yes

MAX PPs per VG: 32512

MAX PPs per PV: 1016 MAX PVs: 32

LTG size (Dynamic): 1024 kilobyte(s) AUTO SYNC: no

HOT SPARE: no BB POLICY: relocatable

PV RESTRICTION: none

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最后LVstate从stale都变为syncd表示同步完成

ERPES01@ />lsvg -l rootvg

rootvg:

LV NAME TYPE LPs PPs PVs LV STATE MOUNT POINT

hd5 boot 1 2 2 closed/syncd N/A

hd6 paging 100 200 2 open/syncd N/A

hd8 jfs2log 1 2 2 open/syncd N/A

hd4 jfs2 20 40 2 open/syncd /

hd2 jfs2 50 100 2 open/syncd /usr

hd9var jfs2 108 216 2 open/syncd /var

hd3 jfs2 50 100 2 open/syncd /tmp

hd1 jfs2 1 2 2 open/syncd /home

hd10opt jfs2 30 60 2 open/syncd /opt

hd11admin jfs2 1 2 2 open/syncd /admin

lg_dumplv sysdump 106 106 1 open/syncd N/A

livedump jfs2 1 2 2 open/syncd /var/adm/ras/livedump

fslv00 jfs2 20 40 2 open/syncd /export/spot

es1oracle jfs2 20 40 2 open/syncd /oracle

es1usrsap jfs2 40 80 2 open/syncd /usr/sap

sapbackup jfs2 8 16 2 open/syncd /sapbackup

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13、对引导记录进行相关操作

在hdisk0上创建引导记录信息

ERPES01@ />bosboot -ad hdisk0

ERPES01@ />bosboot -ad hdisk1

增加引导顺序，如何有cd0 就放在最后面

ERPES01@ />lsdev -C |grep cd

cd0 Available 01-08-00 SATA DVD-RAM Drive

ERPES01@ />bootlist -m normal hdisk0 hdisk1 cd0

查看引导信息

ERPES01@ />bootlist -m normal -o

hdisk0 blv=hd5 pathid=0

hdisk1 blv=hd5 pathid=0

cd0

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15、其他相关注意点

查看LV STATE，stale全部变为syncd，表示同步完成。PPs=2倍的LPs，表示LV有镜像。

lg_dumplv为系统的dumplv，一般不会被镜像，只有当页面空间的lv和dupmlv为同一个lv时mirrorvg才会对其镜像

#清除PVID，不是必须的，执行了更安全

chdev -l hdisk0 -a pv=clear

chdev -l hdisk0 -a pv=yes

#vg做完mirror之后，quorum会自动disable，以保证两块盘中坏了一块之后VG依然可以自动varyon

lsvg rootvg

如果无法删除设备可以使用 fuser /dev/hdisk0检查 ps -ef |grep hdisk0

如果刚好是lg_dump的那个盘坏了，没有做镜像的话换盘的步骤多3步。

sysdump要先指向另外一个位置，删除sysdump,更换盘后重建sysdump并指回来。

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