【正文】 Vnat1 表示主機(jī)模式，就是虛擬機(jī)和外面的實(shí)際物理機(jī)器通過vnat1這個(gè)虛擬交換機(jī)形成一個(gè)封閉的虛擬物理網(wǎng)絡(luò)。raid1陣列自行完成數(shù)據(jù)的重建 UUID : 6bb034a0:f113a422:0f314a33:f0c11868 Events : Number Major Minor RaidDevice State 2 8 80 0 spare rebuilding /dev/sdf 1 8 32 1 active sync /dev/sdc關(guān)閉陣列設(shè)備Raid5[rootlinux /] mdadm C /dev/md5 level=5 raiddevices=4 /dev/sdc11 /dev/sdc12 /dev/sdc13 /dev/sdc14mdadm: /dev/sdc11 appears to contain an ext2fs file system size=312960K mtime=Sun Feb 24 00:09:49 2013mdadm: /dev/sdc11 appears to be part of a raid array: level=raid5 devices=4 ctime=Sun Feb 24 00:07:59 2013mdadm: /dev/sdc12 appears to be part of a raid array: level=raid5 devices=4 ctime=Sun Feb 24 00:07:59 2013mdadm: /dev/sdc13 appears to be part of a raid array: level=raid5 devices=4 ctime=Sun Feb 24 00:07:59 2013mdadm: /dev/sdc14 appears to contain an ext2fs file system size=312896K mtime=Sun Feb 24 00:09:49 2013mdadm: /dev/sdc14 appears to be part of a raid array: level=raid5 devices=4 ctime=Sun Feb 24 00:07:59 2013Continue creating array? ymdadm: array /dev/md5 started.[rootlinux /] mdadm S /dev/md5mdadm: stopped /dev/md5方式二指定spare設(shè)備的數(shù)量[rootlinux /] mdadm C /dev/md5 level=5 raiddevices=4 sparedevices=1 /dev/sdc11 /dev/sdc12 /dev/sdc13 /dev/sdc14 /dev/sdc15mdadm: /dev/sdc11 appears to contain an ext2fs file system size=312960K mtime=Sun Feb 24 00:09:49 2013mdadm: /dev/sdc11 appears to be part of a raid array: level=raid5 devices=4 ctime=Sun Feb 24 00:20:33 2013mdadm: /dev/sdc12 appears to be part of a raid array: level=raid5 devices=4 ctime=Sun Feb 24 00:20:33 2013mdadm: /dev/sdc13 appears to be part of a raid array: level=raid5 devices=4 ctime=Sun Feb 24 00:20:33 2013mdadm: /dev/sdc14 appears to contain an ext2fs file system size=312896K mtime=Sun Feb 24 00:09:49 2013mdadm: /dev/sdc14 appears to be part of a raid array: level=raid5 devices=4 ctime=Sun Feb 24 00:20:33 2013mdadm: /dev/sdc15 appears to contain an ext2fs file system size=312960K mtime=Sun Feb 24 00:09:49 2013mdadm: /dev/sdc15 appears to be part of a raid array: level=raid5 devices=4 ctime=Sun Feb 24 00:07:59 2013mdadm: largest drive (/dev/sdc15) exceed size (104320K) by more than 1%Continue creating array? ymdadm: array /dev/md5 started.結(jié)果查看[rootlinux dev] mdadm detail /dev/md5/dev/md5: Version : Creation Time : Sun Feb 24 00:21:02 2013 Raid Level : raid5 Array Size : 312960 ( MiB MB) Used Dev Size : 104320 ( MiB MB) Raid Devices : 4 Total Devices : 5Preferred Minor : 5 Persistence : Superblock is persistent Update Time : Sun Feb 24 00:21:02 2013 State : clean, degraded, recovering Active Devices : 3Working Devices : 5 Failed Devices : 0 Spare Devices : 2 Layout : leftsymmetric Chunk Size : 64K Rebuild Status : 2% plete UUID : 79461d1a:60a2139e:2b56405e:9c34dc4b Events : Number Major Minor RaidDevice State 0 8 43 0 active sync /dev/sdc11 1 8 44 1 active sync /dev/sdc12 2 8 45 2 active sync /dev/sdc13 5 8 46 3 spare rebuilding /dev/sdc14 4 8 47 spare /dev/sdc15構(gòu)建之后的結(jié)果[rootlinux dev] mdadm detail /dev/md5/dev/md5: Version : Creation Time : Sun Feb 24 00:21:02 2013 Raid Level : raid5 Array Size : 312960 ( MiB MB) Used Dev Size : 104320 ( MiB MB) Raid Devices : 4 Total Devices : 5Preferred Minor : 5 Persistence : Superblock is persistent Update Time : Sun Feb 24 00:21:59 2013 State : clean Active Devices : 4Working Devices : 5 Failed Devices : 0 Spare Devices : 1 Layout : leftsymmetric Chunk Size : 64K UUID : 79461d1a:60a2139e:2b56405e:9c34dc4b Events : Number Major Minor RaidDevice State 0 8 43 0 active sync /dev/sdc11 1 8 44 1 active sync /dev/sdc12 2 8 45 2 active sync /dev/sdc13 3 8 46 3 active sync /dev/sdc14 4 8 47 spare /dev/sdc15增加設(shè)備[rootlinux dev] mdadm grow n 5 /dev/md5mdadm: Need to backup 768K of critical section..mdadm: ... critical section passed.[rootlinux dev] mdadm detail /dev/md5/dev/md5: Version : Creation Time : Sun Feb 24 00:21:02 2013 Raid Level : raid5 Array Size : 312960 ( MiB MB) Used Dev Size : 104320 ( MiB MB) Raid Devices : 5 Total Devices : 5Preferred Minor : 5 Persistence : Superblock is persistent Update Time : Sun Feb 24 00:23:24 2013 State : clean, recovering Active Devices : 5Working Devices : 5 Failed Devices : 0 Spare Devices : 0 Layout : leftsymmetric Chunk Size : 64K Reshape Status : 10% plete Delta Devices : 1, (45) UUID : 79461d1a:60a2139e:2b56405e:9c34dc4b Events : Number Major Minor RaidDevice State 0 8 43 0 active sync /dev/sdc11 1 8 44 1 active sync /dev/sdc12 2 8 45 2 active sync /dev/sdc13 3 8 46 3 active sync /dev/sdc14 4 8 47 4 active sync /dev/sdc15Mkfs操作交換空間:用來彌補(bǔ)內(nèi)存空間不夠的一種機(jī)制；使機(jī)器正常運(yùn)行多個(gè)應(yīng)用程序的一種變通方法。硬盤陣列實(shí)際使用：/dev/ida/c0d0或者/dev/rd/c0d0而軟件的磁盤陣列使用/dev/md[0n]創(chuàng)建設(shè)備文件用mknod 設(shè)備名 設(shè)備類型編號(hào)[2^121] 同一類型設(shè)備編號(hào)[2^201]終端設(shè)備的類型編號(hào)是：7Sd設(shè)備的類型編號(hào)是：8軟件磁盤陣列是：9Ide接口的設(shè)備是：22軟盤驅(qū)動(dòng)器設(shè)備是：21224。RAID 50：RAID50是RAID5與RAID0的結(jié)合。RAID 7：這是一種新的RAID標(biāo)準(zhǔn)，其自身帶有智能化實(shí)