Re: [zfs-discuss] tuning zfs_arc_min

2011-10-12 Thread Frank Van Damme
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 appar

Re: [zfs-discuss] tuning zfs_arc_min

2011-10-11 Thread Richard Elling
On Oct 11, 2011, at 2:03 PM, Frank Van Damme wrote: > 2011/10/11 Richard Elling : >>> ZFS Tunables (/etc/system): >>> set zfs:zfs_arc_min = 0x20 >>> set zfs:zfs_arc_meta_limit=0x1 >> >> It is not uncommon to tune arc meta limit. But I've not seen a case >> where tuning

Re: [zfs-discuss] tuning zfs_arc_min

2011-10-11 Thread Frank Van Damme
2011/10/11 Richard Elling : >> ZFS Tunables (/etc/system): >>         set zfs:zfs_arc_min = 0x20 >>         set zfs:zfs_arc_meta_limit=0x1 > > It is not uncommon to tune arc meta limit. But I've not seen a case > where tuning arc min is justified, especially for a storage server. Can >

Re: [zfs-discuss] tuning zfs_arc_min

2011-10-11 Thread Richard Elling
On Oct 6, 2011, at 5:19 AM, Frank Van Damme wrote: > Hello, > > quick and stupid question: I'm breaking my head over how to tunz > zfs_arc_min on a running system. There must be some magic word to pipe > into mdb -kw but I forgot it. I tried /etc/system but it's still at the > old value after re

Re: [zfs-discuss] tuning zfs_arc_min

2011-10-10 Thread Frank Van Damme
2011/10/8 James Litchfield : > The value of zfs_arc_min specified in /etc/system must be over 64MB > (0x400). > Otherwise the setting is ignored. The value is in bytes not pages. wel I've now set it to 0x800 and it stubbornly stays at 2048 MB... -- Frank Van Damme No part of this copyr

Re: [zfs-discuss] tuning zfs_arc_min

2011-10-10 Thread James Litchfield
The value of zfs_arc_min specified in /etc/system must be over 64MB (0x400). Otherwise the setting is ignored. The value is in bytes not pages. Jim --- n 10/ 6/11 05:19 AM, Frank Van Damme wrote: Hello, quick and stupid question: I'm breaking my head over how to tunz zfs_arc_min on a runn

[zfs-discuss] tuning zfs_arc_min

2011-10-06 Thread Frank Van Damme
Hello, quick and stupid question: I'm breaking my head over how to tunz zfs_arc_min on a running system. There must be some magic word to pipe into mdb -kw but I forgot it. I tried /etc/system but it's still at the old value after reboot: ZFS Tunables (/etc/system): set zfs:zfs_arc_min =