Since CENTOS 5 does not have "rawdevices" service any more. Raw device can not automatic mount on boot time. Does there has way to work around?
--- 08/7/17 (星期四)，nate centos@linuxpowered.net 寫道：
寄件者: nate centos@linuxpowered.net 主旨: Re: [CentOS] Raw device gone after reboot (Centos 5.2)!!! 收件者: centos@centos.org 日期: 2008 7 17 星期四 下午 5:41
mcclnx mcc wrote:
We are set up CENTOS 5.2 (X86) as our database server. I created raw partitions and also put definition on /etc/sysconfig/rawdevices. I can use "raw -qa" see raw partitions. The wield things is
after reboot
/dev/raw is not exist any more. Â Does anyone know how to fix it?
Are you sure you want to do that? from the raw manpage:
WARNING Although Linux includes support for rawio, it is now a deprecated interface. If your application performs device access using this interface, Red Hat encourages you to modify your application to open the block device with the O_DIRECT flag. The rawio interface will exist for the life of Red Hat Enterprise Linux 4, but is a candidate for removal from future releases.
What database server are you using that your wanting to use raw for?
My only experience with raw devices and databases is with Oracle 10G and Automatic Storage Management(ASM). In that case Oracle's stuff handles all of the direct I/O without needing anything to do with /dev/raw, infact I've explicitly disabled the raw service on all of my servers because I've never needed it.
nate
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