Re: [zfs-discuss] raidz and compression, difficulties

2008-01-27 Thread Darren J Moffat
Joachim Pihl wrote: > On Sun, 27 Jan 2008 19:11:33 +0100, MC <[EMAIL PROTECTED]> wrote: > >>> I didn't expect miracles, but since WinRAR gave 13% compression >> ZFS doesn't compress a block if it can't get a certain amount of return >> on it. >> >> Since the default compression is less effective

Re: [zfs-discuss] raidz and compression, difficulties

2008-01-27 Thread Joachim Pihl
On Sun, 27 Jan 2008 19:11:33 +0100, MC <[EMAIL PROTECTED]> wrote: >> I didn't expect miracles, but since WinRAR gave 13% compression > > ZFS doesn't compress a block if it can't get a certain amount of return > on it. > > Since the default compression is less effective than RAR, you can bet >

Re: [zfs-discuss] raidz and compression, difficulties

2008-01-27 Thread Joachim Pihl
On Sun, 27 Jan 2008 19:39:40 +0100, Tim <[EMAIL PROTECTED]> wrote: > Why not create a sample dataset and throw some large .txt files out there > and see what happens? That way you'll know for certain if there's some > bug > you're hitting, or if it's just not applicable to your current dataset.

Re: [zfs-discuss] raidz and compression, difficulties

2008-01-27 Thread Tim
Why not create a sample dataset and throw some large .txt files out there and see what happens? That way you'll know for certain if there's some bug you're hitting, or if it's just not applicable to your current dataset. On 1/27/08, Joachim Pihl <[EMAIL PROTECTED]> wrote: > > On Sat, 26 Jan 200

Re: [zfs-discuss] raidz and compression, difficulties

2008-01-27 Thread MC
> I didn't expect miracles, but since WinRAR gave 13% compression ZFS doesn't compress a block if it can't get a certain amount of return on it. Since the default compression is less effective than RAR, you can bet ZFS is seeing much less than 13% return. I expect everything is working proper

Re: [zfs-discuss] NFS performance on ZFS vs UFS

2008-01-27 Thread Guanghui Wang
I also test the nfs with 'zfs set sharenfs=on' performance with a linux client. By echo zil_disable/W0t1 | mdb -kw the small files from nfs speed up 10x. about zil_disable,see Eric Kustarz's blog: http://blogs.sun.com/erickustarz/entry/zil_disable This message posted from opensolaris.org

Re: [zfs-discuss] raidz and compression, difficulties

2008-01-27 Thread Joachim Pihl
On Sat, 26 Jan 2008 23:33:16 +0100, Toby Thain <[EMAIL PROTECTED]> wrote: > On 26-Jan-08, at 2:24 AM, Joachim Pihl wrote: >> So far so good, "zfs get all" reports compression to be active. Now for >> the problem: After adding another 300GB of uncompressed .tif and >> .bin/.cue >> (audio CD) fil