Re: [zfs-discuss] Encryption accelerator card recommendations.

2011-06-29 Thread Casper . Dik
>On Jun 27, 2011, at 17:16, Erik Trimble wrote: > >> Think about how things were done with the i386 and i387. That's what I'm= > after. With modern CPU buses like AMD & Intel support, plopping a "co-pro= >cessor" into another CPU socket would really, really help. > >Given the amount of transisto

[zfs-discuss] about write balancing

2011-06-29 Thread Tuomas Leikola
Hi! I've been monitoring my arrays lately, and to me it seems like the zfs allocator might be misfiring a bit. This is all on OI 147 and if there is a problem and a fix, i'd like to see it in the next image-update =D Here's some 60s iostat cleaned up a bit: tank3.76T 742G

Re: [zfs-discuss] Encryption accelerator card recommendations.

2011-06-29 Thread Paul Kraus
Thanks for this pointer ... I have been looking for a small (low power) "server" for a bit now and did not realize that HP had anything in the line below the ML-1xx. One of the reviews at the HP site note that the 5.25" media bay is IDE only (from a BIOS perspective), can you confirm or deny t

[zfs-discuss] SandForce SSD internal dedup

2011-06-29 Thread Daniel Carosone
This article raises the concern that SSD controllers (in particular SandForce) do internal dedup, and in particular that this could defeat ditto-block style replication of critical metadata as done by filesystems including ZFS. http://storagemojo.com/2011/06/27/de-dup-too-much-of-good-thing/ Alo

Re: [zfs-discuss] Move rpool from external hd to internal hd

2011-06-29 Thread Erik Trimble
On 6/29/2011 12:51 AM, Stephan Budach wrote: Hi, what are the steps necessary to move the OS rpool from an external USB drive to an internal drive? I thought about adding the internal hd as a mirror to the rpool and then detaching the USB drive, but I am unsure if I'll have to mess with Grub

[zfs-discuss] Move rpool from external hd to internal hd

2011-06-29 Thread Stephan Budach
Hi, what are the steps necessary to move the OS rpool from an external USB drive to an internal drive? I thought about adding the internal hd as a mirror to the rpool and then detaching the USB drive, but I am unsure if I'll have to mess with Grub as well. Cheers, budy -- Stephan Budach Jun

Re: [zfs-discuss] monitoring ops

2011-06-29 Thread Tony Duckles
FYI, I found the following article helpful in setting up monitoring for my home setup: http://www.markround.com/archives/48-Linux-iostat-monitoring-with-Cacti.html The article above is written in the context of setting up monitoring via Cacti, but that's simply using rrdtool on the backend and its

[zfs-discuss] zpool import -R /tpools zpool hangs

2011-06-29 Thread Hung-Sheng Tsao (Lao Tsao 老曹) Ph.D.
hi try to import zpool at different mnt root it hangs forever how to recover can one kill the import job 1 S root 5 0 0 0 SD? 0? Jun 27 ? 8:58 zpool-rootpool 1 S root 16786 0 0 0 SD? 0? 16:11:15 ? 0:00

Re: [zfs-discuss] Fixing txg commit frequency

2011-06-29 Thread Sašo Kiselkov
On 06/27/2011 11:59 AM, Jim Klimov wrote: > >> I'd like to ask about whether there is a method to enforce a >> certain txg >> commit frequency on ZFS. > > Well, there is a timer frequency based on TXG age (i.e 5 sec > by default now), in /etc/system like this: > > set zfs:zfs_txg_synctime =

Re: [zfs-discuss] Fixing txg commit frequency

2011-06-29 Thread Sašo Kiselkov
On 06/29/2011 02:33 PM, Sašo Kiselkov wrote: >> Also there is a buffer-size limit, like this (384Mb): >> set zfs:zfs_write_limit_override = 0x1800 >> >> or on command-line like this: >> # echo zfs_write_limit_override/W0t402653184 | mdb -kw > > Currently my value for this is 0. How should I se

Re: [zfs-discuss] HP Proliant Microserver (Was: Encryption accelerator card recommendations.)

2011-06-29 Thread Roberto Waltman
On 06/29/2011 07:49 AM, Paul Kraus wrote: Thanks for this pointer ... I have been looking for a small (low power) "server" for a bit now and did not realize that HP had anything in the line below the ML-1xx. One of the reviews at the HP site note that the 5.25" media bay is IDE only (from a

[zfs-discuss] ZFS on Proliant Microserver (Was: Encryption accelerator card ...)

2011-06-29 Thread Roberto Waltman
Paul Kraus wrote: Thanks for this pointer ... I have been looking for a small (low power) "server" for a bit now and did not realize that HP had anything in the line below the ML-1xx. One of the reviews at the HP site note that the 5.25" media bay is IDE only (from a BIOS perspective), can y

[zfs-discuss] ZFS on Proliant Microserver (Was: Encryption accelerator card ...)

2011-06-29 Thread Roberto Waltman
Paul Kraus wrote: Thanks for this pointer ... I have been looking for a small (low power) "server" for a bit now and did not realize that HP had anything in the line below the ML-1xx. One of the reviews at the HP site note that the 5.25" media bay is IDE only (from a BIOS perspective), can y

Re: [zfs-discuss] Encryption accelerator card recommendations.[GPU acceleration of ZFS]

2011-06-29 Thread Fred Liu
> -Original Message- > From: David Magda [mailto:dma...@ee.ryerson.ca] > Sent: 星期二, 六月 28, 2011 10:41 > To: Fred Liu > Cc: Bill Sommerfeld; ZFS Discuss > Subject: Re: [zfs-discuss] Encryption accelerator card > recommendations.[GPU acceleration of ZFS] > > On Jun 27, 2011, at 22:03, Fred

Re: [zfs-discuss] Fixing txg commit frequency

2011-06-29 Thread Jim Klimov
2011-06-29 16:33, Sašo Kiselkov пишет: On 06/27/2011 11:59 AM, Jim Klimov wrote: I'd like to ask about whether there is a method to enforce a certain txg commit frequency on ZFS. Well, there is a timer frequency based on TXG age (i.e 5 sec by default now), in /etc/system like this: set zfs:zf