【正文】 sk /dev/hdaThe number of cylinders for this disk is set to 4997.[root@dbrac root] fdisk /dev/hdaThe number of cylinders for this disk is set to 4997.There is nothing wrong with that, but this is larger than 1024,and could in certain setups cause problems with:1) software that runs at boot time (., old versions of LILO)2) booting and partitioning software from other OSs (., DOS FDISK, OS/2 FDISK)Command (m for help): pDisk /dev/hda: GB, 41109061120 bytes255 heads, 63 sectors/track, 4997 cylindersUnits = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id System/dev/hda1 * 1 131 1052226 83 Linux/dev/hda2 132 1151 8193150 83 Linux/dev/hda3 1152 1916 6144862+ 83 Linux/dev/hda4 1917 4998 24756165 f Win95 Ext39。d (LBA)/dev/hda5 1917 2177 2096451 83 Linux/dev/hda6 2178 2438 2096451 82 Linux swap/dev/hda7 2439 2569 1052226 83 LinuxCommand (m for help): nFirst cylinder (25704998, default 2570): Using default value 2570Last cylinder or +size or +sizeM or +sizeK (25704998, default 4998): +500MCommand (m for help): nFirst cylinder (26324998, default 2632): Using default value 2632Last cylinder or +size or +sizeM or +sizeK (26324998, default 4998): +15000MCommand (m for help): pDisk /dev/hda: GB, 41109061120 bytes255 heads, 63 sectors/track, 4997 cylindersUnits = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id System/dev/hda1 * 1 131 1052226 83 Linux/dev/hda2 132 1151 8193150 83 Linux/dev/hda3 1152 1916 6144862+ 83 Linux/dev/hda4 1917 4998 24756165 f Win95 Ext39。d (LBA)/dev/hda5 1917 2177 2096451 83 Linux/dev/hda6 2178 2438 2096451 82 Linux swap/dev/hda7 2439 2569 1052226 83 Linux/dev/hda8 2570 2631 497983+ 83 Linux/dev/hda9 2632 4456 14659281 83 LinuxCommand (m for help): wThe partition table has been altered!Calling ioctl() to reread partition table.WARNING: Rereading the partition table failed with error 16: 設(shè)備或資源忙.The kernel still uses the old table.The new table will be used at the next reboot.Syncing disks.編輯/etc/，增加下面2行以設(shè)置系統(tǒng)共享內(nèi)存大小和文件句柄=2147483648=250 32000 100 128本文涉及到的linux操作系統(tǒng)的內(nèi)核參數(shù)默認設(shè)置大多符合oracle安裝所需，不需要做更大的改動配置 hangchecktimer 內(nèi)核模塊在/etc/options hangchecktimer hangcheck_tick=30 hangcheck_margin=180為了確保系統(tǒng)每次重新啟動的時候都能自動加載hangchecktimer 模塊，需要在/etc/echo “modprobe hangchecktimer” 。 /etc/重啟系統(tǒng)并檢查hangchecktimer模塊是否已經(jīng)加載[root@dbrac root] lsmod | grep hangchecktimerhangchecktimer 2616 0 (unused)配置 RAC 節(jié)點以進行遠程訪問 在 RAC 節(jié)點上運行 Oracle Universal Installer 時，它將使用 rsh 、rcp或scp命令將 Oracle 軟件復制到 RAC 集群中的所有其他節(jié)點。雖然是單機模擬，但仍然要配置，無法跳過，從oracle 10g開始已經(jīng)支持ssh協(xié)議，本文將首先嘗試使用它使用oracle用戶創(chuàng)建ssh公共密匙：[oracle@dbrac oracle]$ sshkeygen t dsaGenerating public/private dsa key pair.Enter file in which to save the key (/home/oracle/.ssh/id_dsa): Enter passphrase (empty for no passphrase): Enter same passphrase again: Your identification has been saved in /home/oracle/.ssh/id_dsa.Your public key has been saved in /home/oracle/.ssh/.The key fingerprint is:2d:09:9a:c0:40:c7:99:46:ea:43:0d:22:4b:d0:a0:26 oracle@dbrac復制公匙到其他節(jié)點（這里是單機）[oracle@dbrac oracle]$ cp v .ssh/ .ssh/authorized_keys測試密匙是否生效[oracle@dbrac oracle]$ ssh dbracThe authenticity of host 39。dbrac ()39。 can39。t be established.RSA key fingerprint is e7:ff:ce:5e:92:ac:c4:96:a8:ca:3e:20:2e:5c:75:ae.Are you sure you want to continue connecting (yes/no)? yesWarning: Permanently added 39。dbrac,39。 (RSA) to the list of known hosts.[oracle@dbrac oracle]$無需密碼即可登陸表示密匙已經(jīng)生效安裝和配置 OCFSOCFS是Oracle 集群文件系統(tǒng) (OCFS)，由 Oracle 開發(fā)，用于消除數(shù)據(jù)庫管理員和系統(tǒng)管理員管理原始設(shè)備這一負擔，它提供了與通常的文件系統(tǒng)相同的功能和用法。盡量不要在OCFS文件系統(tǒng)上使用linux二進制文件系統(tǒng)操作命令在目前的版本１種支持以下文件類型：Oracle 數(shù)據(jù)庫文件 聯(lián)機重做日志文件 歸檔重做日志文件 控制文件 服務器參數(shù)文件 (SPFILE) Oracle 集群注冊表 (OCR) 文件 CRS 表決磁盤。安裝和配置1)，2)執(zhí)行rpm ivh ocfs*.rpm 開始安裝[oracle@dbrac oracle]$ su Password: [root@dbrac root] cd /home/oracle/install/rac/ocfs[root@dbrac ocfs] rpm ivh ocfs*.rpmPreparing... [100%] 1:ocfssupport [ 33%] 2: [ 67%] 3:ocfstools [100%]3)生成并配置/etc/root@dbrac ocfs] ocfstool amp。4)使用 ocfstool GUI 工具執(zhí)行以下步驟： 5)選擇 [Task] [Generate Config] 在“OCFS Generate Config”對話框中，輸入專用互連的接口和 DNS 名。驗證所有節(jié)點上的所有值正確之后，請退出應用程序6)檢查/etc/[root@dbrac ocfs] cat /etc/ ocfs config Ensure this file exists in /etc node_name = dbrac ip_address = ip_port = 7000 m_voting = 1 guid = B907DC7945D81C0A2C8C000D61EB0166注意guid在集群中唯一對應一個節(jié)點，如果要更換網(wǎng)卡，請使用ocfs_uid_gen c 命令重新創(chuàng)建7)重新啟動系統(tǒng)并確認ocfs模塊已經(jīng)正確加載[oracle@dbrac oracle]$ lsmod | grep ocfsocfs 299104 0 (unused)8)創(chuàng)建 OCFS 文件系統(tǒng)[oracle@dbrac oracle]$ iduid=500(oracle) gid=500(dba) groups=500(dba)[oracle@dbrac oracle]$ su Password: [root@dbrac root] F b 128 L crs m /u01 u 39。50039。 g 39。50039。 p 0775 /dev/hda8Cleared volume header sectors Cleared node config sectors Cleared publish sectors Cleared vote sectors Cleared bitmap sectors Cleared data block