1、云南遠程 v250 做 raid1 鏡像內容介紹1 4 5 為數據盤，并d20的鏡像d30。8V250單機對系統盤和數據盤做鏡像冗余，原來做了有四張盤，0號為系統盤,做了條帶為 /dev/md/dsk/d20, 要添加四塊盤，一塊做系統盤鏡像，另外三塊做卷 盤磁盤名稱：AVAILABLE DISK SELECTIONS:0. c0t0d0 <SUN72G cyl 14087 alt 2 hd 24 sec 424> /pci1d,700000/scsi4/sd0,01. c0t1d0 <SUN72G cyl 14087 alt 2 hd 24 sec 424>/pci1

2、d,700000/scsi4/sd1,02. c0t2d0 <SUN72G cyl 14087 alt 2 hd 24 sec 424>/pci1d,700000/scsi4/sd2,03. c0t3d0 <SUN72G cyl 14087 alt 2 hd 24 sec 424>/pci1d,700000/scsi4/sd3,04. c0t8d0 <SUN72G cyl 14087 alt 2 hd 24 sec 424>/pci1d,700000/scsi4/sd8,05. c0t9d0 <SUN72G cyl 14087 alt 2 hd 24

3、sec 424>/pci1d,700000/scsi4/sd9,06. c0t10d0 <SUN72G cyl 14087 alt 2 hd 24 sec 424>/pci1d,700000/scsi4/sda,07. c0t11d0 <SUN72G cyl 14087 alt 2 hd 24 sec 424>/pci1d,700000/scsi4/sdb,0卷 d20d20: Submirror of d2State: OkaySize: 425835072 blocks (203 GB)Stripe 0: (interlace: 32 blocks)Devic

4、eStart Block DbaseState Reloc Hot Sparec0t1d0s60NoOkayYesc0t8d0s60NoOkayYesc0t9d0s60NoOkayYes# metadbflagsfirst blkblock counta m pluo 168192/dev/dsk/c0t1d0s7apluo82088192/dev/dsk/c0t1d0s7apluo164008192/dev/dsk/c0t1d0s7apluo168192/dev/dsk/c0t8d0s7apluo82088192/dev/dsk/c0t8d0s7apluo164008192/dev/dsk/

5、c0t8d0s7apluo168192/dev/dsk/c0t9d0s7apluo82088192/dev/dsk/c0t9d0s7apluo164008192/dev/dsk/c0t9d0s7備份分區表cp /etc/vfstab /etc/vfstab.bak三、將系統盤分區信息復制到 2 號盤，將 1 號盤分區信息復制到 3 6 7 號盤 , 做 metadb# prtvtoc /dev/rdsk/c0t0d0s2 | fmthard -s - /dev/rdsk/c0t2d0s2# prtvtoc /dev/rdsk/c0t1d0s2 | fmthard -s - /dev/rdsk/

6、c0t3d0s2# prtvtoc /dev/rdsk/c0t1d0s2 | fmthard -s - /dev/rdsk/c0t10d0s2# prtvtoc /dev/rdsk/c0t1d0s2 | fmthard -s - /dev/rdsk/c0t11d0s2# metadb - a - f - c 3 c0t3d0s7 c0t10d0s7 c0t11d0s7四、對數據盤做鏡像，并做子鏡像卷# metai nit -f d2 m d20d2: Mirror is setup# metainit -f d30 1 3 c0t3d0s7 c0t10d0s7 c0t11d0s7d30: Co

7、ncat/Stripe is setup# metattach d2 d30# metastatd2: MirrorSubmirror 0: d20State:0%Submirror 1: d30State: Needs maintenancePass: 1Read option: roundrobin (default)Write option: parallel (default)Size: 425835072 blocks (203 GB)d20: Submirror of d2State: okaySize: 425835072 blocks (203 GB)Stripe 0: (in

8、terlace: 32 blocks)DeviceStart Block DbaseState Reloc Hot Sparec0t1d0s60NoOkayYesc0t8d0s60NoOkayYesc0t9d0s60NoOkayYesd30: Submirror of d2State: Needs maintenanceInvoke: metasync d2Size: 425835072 blocks (203 GB)Stripe 0: (interlace: 32 blocks)DeviceStart Block DbaseState Reloc Hot Sparec0t3d0s60NoOk

9、ayYesc0t10d0s60NoOkayYesc0t11d0s60NoOkayYes五、對系統盤做鏡像# metainit -f d40 1 1 c0t2d0s0 Concat/Stripe is setup# metainit -f d41 1 1 c0t2d0s1 Concat/Stripe is setup# metainit -f d47 1 1 c0t2d0s7 Concat/Stripe is setup# metainit -f d50 1 1 c0t2d0s0 Concat/Stripe is setup# metainit -f d51 1 1 c0t2d0s1 Conca

10、t/Stripe is setup# metainit -f d57 1 1 c0t2d0s7 Concat/Stripe is setup# Metainit- f d0- m d40# Metai nit f di m d41# Metainit- f d7 - m d47# metaroot d0# vi/etc/vfstab 改為/dev/md/dsk/d1/dev/md/dsk/d0/dev/md/dsk/d7swap - no/dev/md/rdsk/d0 /dev/md/rdsk/d7ufs 1no/usr ufs 1no/dev/md/dsk/d2/dev/md/rdsk/d2

11、/oracle ufsyes -# lockfs - fa# Init 6六、追加子鏡像# metattach d0 d50# metattach d1 d51# metattach d7 d57生成可自動切換的能啟動鏡像磁盤installboot /usr/platform/'uname -i'/lib/fs/ufs/bootblk /dev/rdsk/c1t4d0s0 等待鏡像同步完成查看狀態# metastatd7: Mirror Submirror 0: d47State: OkaySubmirror 1: d57State: OkayPass: 1Read optio

12、n: roundrobin (default)Write option: parallel (default)Size: 20484288 blocks (9.8 GB)d47: Submirror of d7State: OkaySize: 20484288 blocks (9.8 GB)Stripe 0:Device Start Block DbaseState Reloc Hot Sparec0t0d0s7 0 No Okay Yesd57: Submirror of d7State: OkaySize: 20484288 blocks (9.8 GB)Stripe 0:Device S

13、tart Block DbaseState Reloc Hot Sparec0t2d0s7 0 No Okay Yesd1: MirrorSubmirror 0: d41State: OkaySubmirror 1: d51State: OkayPass: 1Read option: roundrobin (default)Write option: parallel (default)Size: 12292608 blocks (5.9 GB)d41: Submirror of d1State: OkaySize: 12292608 blocks (5.9 GB)Stripe 0:Devic

14、e Start Block DbaseState Reloc Hot Sparec0t0d0s1 0 No Okay Yesd51: Submirror of d1State: OkaySize: 12292608 blocks (5.9 GB)Stripe 0:Device Start Block DbaseState Reloc Hot Sparec0t2d0s1 0 No Okay Yesd0: MirrorSubmirror 0: d40State: OkaySubmirror 1: d50State: OkayPass: 1Read option: roundrobin (defau

15、lt)Write option: parallel (default)Size: 110572416 blocks (52 GB)d40: Submirror of d0State: OkaySize: 110572416 blocks (52 GB)Stripe 0:Device Start Block DbaseState Reloc Hot Sparec0t0d0s0 0 No Okay Yesd50: Submirror of d0State: OkaySize: 110572416 blocks (52 GB)Stripe 0:Device Start Block DbaseStat

16、e Reloc Hot Sparec0t2d0s0 0 No Okay Yes d2: MirrorSubmirror 0: d20State: OkaySubmirror 1: d30State: OkayPass: 1Read option: roundrobin (default)Write option: parallel (default)Size: 425835072 blocks (203 GB)d20: Submirror of d2State: OkaySize: 425835072 blocks (203 GB)Stripe 0: (interlace: 32 blocks

17、)DeviceStart Block DbaseState Reloc Hot Sparec0t1d0s60NoOkayYesc0t8d0s60NoOkayYesc0t9d0s60NoOkayYesd30: Submirror of d2State: OkaySize: 425835072 blocks (203 GB)Stripe 0: (interlace: 32 blocks)DeviceStart Block DbaseState Reloc Hot Sparec0t3d0s60NoOkayYesc0t10d0s60NoOkayYesc0t11d0s60NoOkayYes六、 對更換磁盤做維護 假如 c0t0d0 壞掉，停機，取出壞磁盤。 在 ok 下用鏡像的盤啟動到單用戶模式下： boot disk2 - s*2號盤為系統鏡像盤系統啟動后插入新磁盤（ format 格式化） 執行： metadb -d c0t0d0s7 * 刪除 metadb prtvtoc /dev/rdsk/c0t2d0s2|fmthard