Oracle RAC on RedHat Linux Best Practice guide and ... - OpenMPE
Oracle RAC on RedHat Linux Best Practice guide and ... - OpenMPE
Oracle RAC on RedHat Linux Best Practice guide and ... - OpenMPE
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OCFS <strong>Best</strong> <strong>Practice</strong><br />
• Format with 128 KB block size. Sizes between 2 KB <strong>and</strong> 1<br />
MB are supported. Smaller blocksize will have performance<br />
penality.<br />
• Place archive log <strong>on</strong> a separate disk partiti<strong>on</strong> to avoid<br />
c<strong>on</strong>tenti<strong>on</strong>.<br />
• OCFS requires c<strong>on</strong>tiguous space <strong>on</strong> disk for initial datafile<br />
creati<strong>on</strong> or for any extensi<strong>on</strong>.<br />
• OCFS recommend to have hardware RAID support.<br />
• Avoid large numbers of mount points as this tends to<br />
create a performance bottleneck (typically < 50)<br />
• OCFS will print error <strong>and</strong> debug informati<strong>on</strong> in system log<br />
(/var/log/messages & dmesg).<br />
• Update fstab <strong>and</strong> modules.c<strong>on</strong>f for automatic starting<br />
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