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List:       zfs-discuss
Subject:    Re: [zfs-discuss] tuning zfs_arc_min
From:       Frank Van Damme <frank.vandamme () gmail ! com>
Date:       2011-10-12 7:56:27
Message-ID: 4E95482B.3060505 () gmail ! com
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Op 12-10-11 02:27, Richard Elling schreef:
> On Oct 11, 2011, at 2:03 PM, Frank Van Damme wrote:
>> Honestly? I don't remember. might be a "leftover" setting from a year
>> ago. by now, I figured out I need to "update the boot archive" in
>> order for the new setting to have effect at boot time which apparently
>> involves booting in safe mode.
>
> The archive should be updated when you reboot. Or you can run
> 	bootadm update-archive
> anytime.
>
> At boot, the zfs_arc_min is copied into arc_c_min overriding the default
> setting. You can see the current value via kstat:
> 	kstat -p zfs:0:arcstats:c_min
> 	zfs:0:arcstats:c_min    389202432
>
> This is the smallest size that the ARC will shrink to, when asked to shrink
> because other applications need memory.

The root of the problem seems to be that that process never completes.

9     /lib/svc/bin/svc.startd
   332   /sbin/sh /lib/svc/method/boot-archive-update
     347   /sbin/bootadm update-archive

Can't kill it and run from the cmdline either, it simply ignores 
SIGKILL. (Which shouldn't even be possible).

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