vg鏡像的方法將數(shù)據(jù)轉(zhuǎn)移到新存儲(chǔ)設(shè)備

1、標(biāo)題：在AIX中如何使用vg鏡像的方法將數(shù)據(jù)轉(zhuǎn)移到新存儲(chǔ)設(shè)備產(chǎn)品：P-Server,DS4000,DS6000,DS8000主機(jī)平臺(tái)：IBM eServer pSerise操作系統(tǒng)：AIX其他軟件版本：N/A隨著設(shè)備的更新，用戶會(huì)經(jīng)常遇到數(shù)據(jù)轉(zhuǎn)移的問(wèn)題。如何將老的存儲(chǔ)設(shè)備上的數(shù)據(jù)轉(zhuǎn)移到新的存儲(chǔ)設(shè)備上呢？我們下面將舉例子，講解如何使用AIX的vg鏡像的方法實(shí)現(xiàn)。mirrorvg功能可以將一個(gè)vg中的所有l(wèi)v都進(jìn)行mirror。mirror的目的地盤必須在同一個(gè)vg中。如果將一個(gè)vg中的所有邏輯卷進(jìn)行 mklvcopy ，效果等同于mirrorvg。smit法：smit vg/Set Charac

2、teristics of a Volume Group/Add a Physical Volume to a Volume Group現(xiàn)有的環(huán)境：我們有2、1）本地磁盤（需要轉(zhuǎn)儲(chǔ)的源盤）：pv:hdisk1vg:vg-locallv:lv-localfs:/mnt/lv-local2、2）fastt上提供（與本實(shí)驗(yàn)無(wú)關(guān)）：pv:hdisk2;hdisk3vg:vg-fastt600lv: lv-fastt600-1fs: /mnt/lv-fastt600-12、3）fastt上提供（需要轉(zhuǎn)儲(chǔ)的目的）提供了一個(gè)裸盤：pv:hdisk4我們下面的操作是將數(shù)據(jù)從原始位置pv:hdisk1，移動(dòng)到fa

3、stt上提供（需要轉(zhuǎn)儲(chǔ)的目的）提供了一個(gè)盤pv:hdisk4上。我們會(huì)利用IBM fastt 的管理軟件觀察目的盤hdisk4的流量。還要驗(yàn)證在這個(gè)過(guò)程中數(shù)據(jù)的訪問(wèn)是否中斷以及移動(dòng)的效率如何。先將hdisk4上面的數(shù)據(jù)毀掉p615:/tar -cvf /dev/hdisk4 /etca /etc/test/b3 1 blocks.a /etc/test/b4 1 blocks.a /etc/test/b5 1 blocks.a /etc/inittab.tsm 8 blocks.檢驗(yàn)是否毀掉p615:/tar tvf /dev/hdisk4-rw-r-r- 0 0 30 Oct 25 10:2

4、1:10 2004 /etc/test/b4-rw-r-r- 0 0 31 Oct 25 10:21:29 2004 /etc/test/b5-rw- 0 0 3608 Dec 30 11:17:07 2004 /etc/inittab.tsmdrwxr-xr-x 0 0 0 Jul 16 10:44:15 2004 /etc/tivready/查看當(dāng)前情況，建立模擬環(huán)境p615:/lsvg -p vg-localvg-local:PV_NAME PV STATE TOTAL PPs FREE PPs FREE DISTRIBUTIONhdisk1 active 8678 8672 1736.

5、1730.1735.1735.1736p615:/lspvhdisk0 005c39ff63baaa57 rootvg activehdisk1 005c39ffbf1771fc vg-local activehdisk4 none Nonehdisk2 0053f61fd0b7ca1e vg-fastt600 activehdisk3 0053f5ffd0efed59 vg-fastt600 active為了觀察fastt上的I/O情況，我們用Storage Manager/Storage Subsystem/Monitor Performance注：Logical Drive aix3是h

6、disk4為了測(cè)試操作對(duì)I/O的連續(xù)性的影響，我們?cè)诹硗獾膖elnet中建立一個(gè)腳本work：while 1 = 1 do tar -cvf /mnt/lv-fastt600-1/usrlib.tar /mnt/lv-local/usrlib sleep 1 tar -xvf /mnt/lv-fastt600-1/usrlib.tar /mnt/lv-local/usrlib sleep 1done讓/mnt/lv-local文件系統(tǒng)持續(xù)被讀寫。運(yùn)行它：p615:/./worka /mnt/lv-local/usrlib/libarm4.a 150 blocks.a /mnt/lv-local

7、/usrlib/libasl.a 395 blocks.a /mnt/lv-local/usrlib/libauthm.a 22 blocks.a /mnt/lv-local/usrlib/libc128.a 132 blocks.a /mnt/lv-local/usrlib/libc_r.a 13847 blocks.x /mnt/lv-local/usrlib/libasl.a, bytes, 395 media blocks.x /mnt/lv-local/usrlib/libauthm.a, 11024 bytes, 22 media blocks.x /mnt/lv-local/us

8、rlib/libc128.a, 67571 bytes, 132 media blocks.x /mnt/lv-local/usrlib/libc_r.a, bytes, 13847 media blocks.x /mnt/lv-local/usrlib/libc_t.a, bytes, 10064 media blocks.vg-local中加入新盤hdisk4（fastt600）p615:/extendvg vg-local hdisk40516-1254 extendvg: Changing the PVID in the ODM.可以看到，33個(gè)I/O用于寫VGDA等：p615:/ls

9、vg -p vg-localvg-local:PV_NAME PV STATE TOTAL PPs FREE PPs FREE DISTRIBUTIONhdisk1 active 8678 8672 1736.1730.1735.1735.1736hdisk4 active 7679 7679 1536.1536.1535.1536.1536p615:/lspvhdisk0 005c39ff63baaa57 rootvg activehdisk1 005c39ffbf1771fc vg-local activehdisk4 005c39ffaddfd60e vg-local activehdi

10、sk2 0053f61fd0b7ca1e vg-fastt600 activehdisk3 0053f5ffd0efed59 vg-fastt600 activep615:/lslv -m lv-locallv-local:/mnt/lv-localLP PP1 PV1 PP2 PV2 PP3 PV30001 1738 hdisk10002 1739 hdisk10003 1740 hdisk10004 1741 hdisk10005 1742 hdisk1建立vg的鏡像p615:/mirrorvg vg-local hdisk40516-1125 mirrorvg: Quorum requi

11、rement turned off, varyoff and varyon volume group for this to take effect.上面的操作使用了10秒鐘我們?cè)诹硗獾膖elnet中的work的I/O操作始終沒(méi)有停止：a /mnt/lv-local/usrlib/libasl.a 395 blocks.a /mnt/lv-local/usrlib/libauthm.a 22 blocks.a /mnt/lv-local/usrlib/libc128.a 132 blocks.a /mnt/lv-local/usrlib/libc_r.a 13847 blocks.x /mnt

12、/lv-local/usrlib/libauthm.a, 11024 bytes, 22 media blocks.x /mnt/lv-local/usrlib/libc128.a, 67571 bytes, 132 media blocks.x /mnt/lv-local/usrlib/libc_r.a, bytes, 13847 media blocks.x /mnt/lv-local/usrlib/libc_t.a, bytes, 10064 media blocks.Logical Drive aix3的I/O持續(xù)增長(zhǎng)：查看結(jié)果：p615:/lspvhdisk0 005c39ff63b

13、aaa57 rootvg activehdisk1 005c39ffbf1771fc vg-local activehdisk4 005c39ffadf71984 vg-local activehdisk2 0053f61fd0b7ca1e vg-fastt600 activehdisk3 0053f5ffd0efed59 vg-fastt600 activep615:/lslv lv-localLOGICAL VOLUME: lv-local VOLUME GROUP: vg-localLV IDENTIFIER: 005c39ff00004ca86ef484.3 PERMISSION: r

14、ead/writeVG STATE: active/complete LV STATE: opened/syncdTYPE: jfs WRITE VERIFY: offMAX LPs: 512 PP SIZE: 4 megabyte(s)COPIES: 2 SCHED POLICY: parallelLPs: 5 PPs: 10STALE PPs: 0 BB POLICY: relocatableINTER-POLICY: minimum RELOCATABLE: yesINTRA-POLICY: middle UPPER BOUND: 32MOUNT POINT: /mnt/lv-local

15、 LABEL: /mnt/lv-localMIRROR WRITE CONSISTENCY: on/ACTIVEEACH LP COPY ON A SEPARATE PV ?: yesSerialize IO ?: NOp615:/lslv -l lv-locallv-local:/mnt/lv-localPV COPIES IN BAND DISTRIBUTIONhdisk1 005:000:000 100% 000:005:000:000:000hdisk4 005:000:000 100% 000:005:000:000:000p615:/lslv -m lv-locallv-local

16、:/mnt/lv-localLP PP1 PV1 PP2 PV2 PP3 PV30001 1738 hdisk1 1538 hdisk40002 1739 hdisk1 1539 hdisk40003 1740 hdisk1 1540 hdisk40004 1741 hdisk1 1541 hdisk40005 1742 hdisk1 1542 hdisk4把老盤hdisk1從鏡像的vg中祛除出來(lái)：8秒p615:/unmirrorvg vg-local hdisk10516-1133 unmirrorvg: Quorum requirement turned on, varyoff and v

17、aryon volume group for this to take effect.p615:/lspvhdisk0 005c39ff63baaa57 rootvg activehdisk1 005c39ffbf1771fc vg-local activehdisk4 005c39ffadf71984 vg-local activehdisk2 0053f61fd0b7ca1e vg-fastt600 activehdisk3 0053f5ffd0efed59 vg-fastt600 activep615:/reducevg vg-local hdisk1p615:/lspvhdisk0 0

18、05c39ff63baaa57 rootvg activehdisk1 005c39ffbf1771fc Nonehdisk4 005c39ffadf71984 vg-local activehdisk2 0053f61fd0b7ca1e vg-fastt600 activehdisk3 0053f5ffd0efed59 vg-fastt600 activep615:/lsvg -p vg-localvg-local:PV_NAME PV STATE TOTAL PPs FREE PPs FREE DISTRIBUTIONhdisk4 active 7679 7673 1536.1530.15

19、35.1536.1536我們?cè)诹硗獾膖elnet中的work的I/O操作始終沒(méi)有停止：a /mnt/lv-local/usrlib/libasl.a 395 blocks.a /mnt/lv-local/usrlib/libauthm.a 22 blocks.a /mnt/lv-local/usrlib/libc128.a 132 blocks.a /mnt/lv-local/usrlib/libc_r.a 13847 blocks.x /mnt/lv-local/usrlib/libauthm.a, 11024 bytes, 22 media blocks.x /mnt/lv-local/u

20、srlib/libc128.a, 67571 bytes, 132 media blocks.x /mnt/lv-local/usrlib/libc_r.a, bytes, 13847 media blocks.x /mnt/lv-local/usrlib/libc_t.a, bytes, 10064 media blocks.Logical Drive aix3的I/O持續(xù)增長(zhǎng)：查看結(jié)果我們得到了一個(gè)被置換的vg:p615:/lsdev -Cc diskhdisk0 Available 1S-08-00-8,0 16 Bit LVD SCSI Disk Drivehdisk1 Availab

21、le 1S-08-00-5,0 16 Bit LVD SCSI Disk Drivehdisk2 Available 1n-08-01 1722-600 (600) Disk Array Devicehdisk3 Available 1H-08-01 1722-600 (600) Disk Array Devicehdisk4 Available 1n-08-01 1722-600 (600) Disk Array Devicep615:/lspvhdisk0 005c39ff63baaa57 rootvg activehdisk1 005c39ffbf1771fc Nonehdisk4 00

22、5c39ffadf71984 vg-local activehdisk2 0053f61fd0b7ca1e vg-fastt600 activehdisk3 0053f5ffd0efed59 vg-fastt600 activep615:/lsvg -p vg-localvg-local:PV_NAME PV STATE TOTAL PPs FREE PPs FREE DISTRIBUTIONhdisk4 active 7679 7673 1536.1530.1535.1536.1536p615:/lsvg -l vg-localvg-local:LV NAME TYPE LPs PPs PV

23、s LV STATE MOUNT POINTloglv00 jfslog 1 1 1 open/syncd N/Alv-local jfs 5 5 1 open/syncd /mnt/lv-localp615:/mount node mounted mounted over vfs date options- - - - - - /dev/hd4 / jfs Jan 17 17:15 rw,log=/dev/hd8 /dev/hd2 /usr jfs Jan 17 17:15 rw,log=/dev/hd8 /dev/hd9var /var jfs Jan 17 17:15 rw,log=/d

24、ev/hd8 /dev/hd3 /tmp jfs Jan 17 17:15 rw,log=/dev/hd8 /dev/hd1 /home jfs Jan 17 17:17 rw,log=/dev/hd8 /proc /proc procfs Jan 17 17:17 rw /dev/hd10opt /opt jfs Jan 17 17:17 rw,log=/dev/hd8 /dev/lv00 /ptf jfs Jan 17 17:17 rw,log=/dev/hd8 /dev/lv01 /TSM jfs Jan 17 17:17 rw,log=/dev/hd8 /dev/lv-fastt600

25、-1 /mnt/lv-fastt600-1 jfs Jan 25 17:28 rw,log=/dev/loglv03 /dev/lv-local /mnt/lv-local jfs Jan 26 15:10 rw,log=/dev/loglv00p615:/dfFilesystem 512-blocks Free %Used Iused %Iused Mounted on/dev/hd4 18% 2256 1% /dev/hd2 75% 57768 8% /usr/dev/hd9var 73712 44% 835 6% /var/dev/hd3 65% 6391 1% /tmp/dev/hd1

26、 11952 91% 548 4% /home/proc - - - - - /proc/dev/hd10opt 85848 35% 404 3% /opt/dev/lv00 82% 486 1% /ptf/dev/lv01 39% 942 1% /TSM/dev/lv-fastt600-1 5% 18 1% /mnt/lv-fastt600-1/dev/lv-local 40960 20944 49% 27 1% /mnt/lv-localp615:/刪除老盤：p615:/rmdev -dl hdisk1hdisk1 deletedp615:/lsdev -Cc diskhdisk0 Ava

27、ilable 1S-08-00-8,0 16 Bit LVD SCSI Disk Drivehdisk2 Available 1n-08-01 1722-600 (600) Disk Array Devicehdisk3 Available 1H-08-01 1722-600 (600) Disk Array Devicehdisk4 Available 1n-08-01 1722-600 (600) Disk Array Devicep615:/lspvhdisk0 005c39ff63baaa57 rootvg activehdisk4 005c39ffadf71984 vg-local

28、activehdisk2 0053f61fd0b7ca1e vg-fastt600 activehdisk3 0053f5ffd0efed59 vg-fastt600 active我們?cè)诹硗獾膖elnet中的work的I/O操作始終沒(méi)有停止：a /mnt/lv-local/usrlib/libasl.a 395 blocks.a /mnt/lv-local/usrlib/libauthm.a 22 blocks.a /mnt/lv-local/usrlib/libc128.a 132 blocks.a /mnt/lv-local/usrlib/libc_r.a 13847 blocks.x /mnt/lv-local/usrlib/libauthm.a, 11024 bytes, 22 media blocks.x /mnt/lv-local/usrlib/libc128.a, 67571 bytes, 132 media blocks.x /mnt/lv-local/usrlib/libc_r.a