Hi Rainer, While I would recommend upgrading to Build 54 or newer to use the system tunable, its not that big of a deal to set the ARC on boot up. We've done it on a T2000 for awhile, until we could take it down for an extended period of time to upgrade it.
Definitely WOULD NOT run a database on ZFS without it. You will run out of RAM, and depending on how your DB responds to being out of RAM, you could get some very undesirable results. Just my two cents. -J On 3/19/07, Rainer Heilke <[EMAIL PROTECTED]> wrote:
The updated information states that the kernel setting is only for the current Nevada build. We are not going to use the kernel debugger method to change the setting on a live production system (and do this everytime we need to reboot). We're back to trying to set their expectations more realistically, and using proper tools to measure memory usage. As I stated at the outset, they are trying to start up a 10GB SGA database within two minutes to "simulate" the start-up of five 2GB databases at boot-up. I sincerely doubt they are going to start all five databases simultaneously within two minutes on a regular boot-up. So, what is the best use of the OS tools (vmstat, etc.) to show them how this would really occur? Rainer This message posted from opensolaris.org _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
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