而且红旗内置了为Oracle而设置的参数和软件包，客户装好了OS之后，我没有打任何rpm包即可正常安装Oracle软件。
基础安准过非常顺利，但是设置高内存是遇到OUT OF MEMORY的错误，Kamus遇到过：
SQL> startup nomount
ORA-27102: out of memory
Linux-x86_64 Error: 28: No space LEFT ON device
这和内核参数 shmall 有关，修改设置 kernel.shmall = 16475728 。
后来离开没多久，客户打电话说两台机器都挂了，我检查了一下message信息：
Feb 5 16:57:22 ywg1 kernel: bnx2: eth1 NIC Copper Link is Down
Feb 5 17:02:55 ywg1 syslogd 1.4.1: restart.
Feb 5 17:02:55 ywg1 syslog: syslogd startup succeeded
Feb 5 17:02:55 ywg1 kernel: klogd 1.4.1, log source = /proc/kmsg started.
Feb 5 17:02:55 ywg1 kernel: 4.S2E0.S2E9 OSHP fails=0x5
Feb 5 17:02:55 ywg1 syslog: klogd startup succeeded
Feb 5 17:02:56 ywg1 irqbalance: irqbalance startup succeeded
Feb 5 17:02:56 ywg1 netfs: Mounting other filesystems: succeeded
Feb 5 17:02:56 ywg1 rc: Starting lm_sensors: succeeded
Feb 5 17:02:56 ywg1 mDNSResponder: startup succeeded
Feb 5 17:02:56 ywg1 acpid: acpid startup succeeded
Feb 5 17:02:57 ywg1 sshd: succeeded
Feb 5 17:02:57 ywg1 crond: crond startup succeeded
Feb 6 01:02:18 ywg1 rc.sysinit: -e
发现有网卡Down的信息，问了客户，有人折腾网线。
再看message信息里有大量的pci告警信息，系统初始化之后就存在，原因未知，不知道有人遇到过没有：
Nov 29 18:12:33 YWG1 kernel: pciehp: acpi_pciehprm:\_SB_.PCI0.PT04.S2E0.S2E9 OSHP fails=0x5
Nov 29 18:12:33 YWG1 kernel: pciehp: acpi_pciehprm:\_SB_.PCI0.PT04.S2E0.S2E9 _HPP fail=0x5
Nov 29 18:12:33 YWG1 kernel: pciehp: acpi_pciehprm:\_SB_.PCI0.PT04.S2E0.S2E9 OSHP fails=0x5
Nov 29 18:12:33 YWG1 kernel: pciehp: acpi_pciehprm:\_SB_.PCI0.PT04.S2E0.S2E9 _HPP fail=0x5
Nov 29 18:12:33 YWG1 kernel: pciehp: acpi_pciehprm:\_SB_.PCI0.PT04.S2E0.S2E9 OSHP fails=0x5
Nov 29 18:12:33 YWG1 kernel: pciehp: acpi_pciehprm:\_SB_.PCI0.PT04.S2E0.S2E9 _HPP fail=0x5
Nov 29 18:12:33 YWG1 kernel: pciehp: acpi_pciehprm:\_SB_.PCI0.PT04.S2E0.S2E9 OSHP fails=0x5
Nov 29 18:12:33 YWG1 kernel: pciehp: acpi_pciehprm:\_SB_.PCI0.PT04.S2E0.S2E9 _HPP fail=0x5
Nov 29 18:12:33 YWG1 kernel: pciehp: acpi_pciehprm:\_SB_.PCI0.PT04.S2E0.S2E9 OSHP fails=0x5
Nov 29 18:12:33 YWG1 kernel: pciehp: acpi_pciehprm:\_SB_.PCI0.PT04.S2E0.S2E9 _HPP fail=0x5
安装难度不大，不过遇到不少问题