[zfs-discuss] Re: Re: ZFS memory and swap usage

2007-03-21 Thread Rainer Heilke
> So why don't you state the actual time it takes to "come up"? I can't because I don't know. The DBA's have been very difficult about sharing the information. It took several emails and a meeting before we even found out the fact that the 10GB SGA DB didn't start up "quick enough". We also hone

Re: [zfs-discuss] Re: Re: ZFS memory and swap usage

2007-03-19 Thread Roch - PAE
Info on tuning the ARC was just recently updated: http://www.solarisinternals.com/wiki/index.php/ZFS_Best_Practices_Guide#Memory_and_Dynamic_Reconfiguration_Recommendations -r Rainer Heilke writes: > Thanks for the feedback. Please see below. > > > ZFS should give back memory used for cache

Re: [zfs-discuss] Re: Re: ZFS memory and swap usage

2007-03-19 Thread Robert Milkowski
Hello Rainer, Monday, March 19, 2007, 3:07:54 AM, you wrote: RH> Thanks for the feedback. Please see below. >> ZFS should give back memory used for cache to system >> if applications are demanding it. Right it should but sometimes it >> won't. >> >> However with databases there's simple workaro

[zfs-discuss] Re: Re: ZFS memory and swap usage

2007-03-18 Thread Rainer Heilke
Thanks for the feedback. Please see below. > ZFS should give back memory used for cache to system > if applications are demanding it. Right it should but sometimes it > won't. > > However with databases there's simple workaround - as > you know how much ram all databases will consume at least you