Caché Installation Guide - InterSystems Documentation
Caché Installation Guide - InterSystems Documentation
Caché Installation Guide - InterSystems Documentation
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<strong>Caché</strong> UNIX-based <strong>Installation</strong><br />
5.3.1 Adjust Macintosh Kernel Parameters<br />
When using the UNIX-type installation, it may be necessary to adjust the shared memory<br />
kernel parameters of the operating system before installing <strong>Caché</strong> to avoid a shared memory<br />
problem illustrated by the following example:<br />
Configuring minimum system...<br />
Unable to allocate 1 MB global buffer space...<br />
Unable to allocate shared memory<br />
Cache: Invalid argument<br />
Cache failed to start.<br />
Check if shared memory requirements exceed system resources.<br />
Call <strong>InterSystems</strong> Technical Support if you need assistance.<br />
** <strong>Installation</strong> aborted **<br />
Verify that the shared memory meet the minimum requirements. If it is necessary, increase<br />
the shared memory on the Mac OS X system in the /etc/sysctl.conf file to at least the following<br />
values:<br />
kern.sysv.shmmax: 67108864<br />
kern.sysv.shmall: 16384<br />
kern.sysv.shmmin: 1<br />
kern.sysv.shmseg: 4<br />
kern.sysv.shmmni: 32<br />
Important:<br />
Do not make these updates to the kernel parameters in the /etc/rc file; an<br />
operating system maintenance release could replace them.<br />
<strong>Caché</strong> <strong>Installation</strong> <strong>Guide</strong> 49