Re: [zfs-discuss] Slow write speed to ZFS pool (via NFS)

2007-08-10 Thread MC
So that leaves us with a Samba vs NFS issue (not related to ZFS). We know that NFS is able to create file _at most_ at one file per server I/O latency. Samba appears better and this is what we need to investigate. It might be better in a way that NFS can borrow (maybe through some better

Re: [zfs-discuss] Force ditto block on different vdev?

2007-08-10 Thread Frank Cusack
On August 10, 2007 2:20:30 PM +0300 Tuomas Leikola [EMAIL PROTECTED] wrote: We call that a mirror :-) Mirror and raidz suffer from the classic blockdevice abstraction problem in that they need disks of equal size. Not that I'm aware of. Mirror and raid-z will simply use the smallest

Re: [zfs-discuss] Force ditto block on different vdev?

2007-08-10 Thread Tuomas Leikola
We call that a mirror :-) Mirror and raidz suffer from the classic blockdevice abstraction problem in that they need disks of equal size. Not that I'm aware of. Mirror and raid-z will simply use the smallest size of your available disks. Exactly. The rest is not usable.

Re: [zfs-discuss] Is there _any_ suitable motherboard?

2007-08-10 Thread Neal Pollack
Alec Muffett wrote: Does anyone on this list have experience with a recent board with 6 or more SATA ports that they know is supported? Well so far I have only populated 5 of the ports I have available, but my writeup with my 9-port SATS ASUS mobo is at:

Re: [zfs-discuss] Force ditto block on different vdev?

2007-08-10 Thread Tuomas Leikola
On 8/10/07, Darren Dunham [EMAIL PROTECTED] wrote: For instance, it might be nice to create a mirror with a 100G disk and two 50G disks. Right now someone has to create slices on the big disk manually and feed them to zpool. Letting ZFS handle everything itself might be a win for some cases.

Re: [zfs-discuss] Force ditto block on different vdev?

2007-08-10 Thread Tuomas Leikola
On 8/10/07, Darren J Moffat [EMAIL PROTECTED] wrote: Tuomas Leikola wrote: We call that a mirror :-) Mirror and raidz suffer from the classic blockdevice abstraction problem in that they need disks of equal size. Not that I'm aware of. Mirror and raid-z will simply use the smallest

Re: [zfs-discuss] Force ditto block on different vdev?

2007-08-10 Thread Tuomas Leikola
On 8/10/07, Moore, Joe [EMAIL PROTECTED] wrote: Wishlist: It would be nice to put the whole redundancy definitions into the zfs filesystem layer (rather than the pool layer): Imagine being able to set copies=5+2 for a filesystem... (requires a 7-VDEV pool, and stripes via RAIDz2, otherwise

Re: [zfs-discuss] Is there _any_ suitable motherboard?

2007-08-10 Thread Brian Hechinger
On Fri, Aug 10, 2007 at 10:23:49AM -0700, Neal Pollack wrote: Server class: Chipset ESB-2 southbridge Desktop class: Chipset ICH-8 and ICH-9 Motherboards known as i965 chipset and Intel P35 chipsets Are the i975 chipset boards any less

Re: [zfs-discuss] Force ditto block on different vdev?

2007-08-10 Thread James Blackburn
We call that a mirror :-) Mirror and raidz suffer from the classic blockdevice abstraction problem in that they need disks of equal size. Not that I'm aware of. Mirror and raid-z will simply use the smallest size of your available disks. Exactly. The rest is not usable.

Re: [zfs-discuss] Is there _any_ suitable motherboard?

2007-08-10 Thread Alec Muffett
Does anyone on this list have experience with a recent board with 6 or more SATA ports that they know is supported? Well so far I have only populated 5 of the ports I have available, but my writeup with my 9-port SATS ASUS mobo is at: http://www.crypticide.com/dropsafe/article/2091

Re: [zfs-discuss] Force ditto block on different vdev?

2007-08-10 Thread Darren J Moffat
Tuomas Leikola wrote: We call that a mirror :-) Mirror and raidz suffer from the classic blockdevice abstraction problem in that they need disks of equal size. Not that I'm aware of. Mirror and raid-z will simply use the smallest size of your available disks. Exactly. The rest is not

Re: [zfs-discuss] Force ditto block on different vdev?

2007-08-10 Thread Tuomas Leikola
On 8/9/07, Richard Elling [EMAIL PROTECTED] wrote: What I'm looking for is a disk full error if ditto cannot be written to different disks. This would guarantee that a mirror is written on a separate disk - and the entire filesystem can be salvaged from a full disk failure. We call that

Re: [zfs-discuss] Force ditto block on different vdev?

2007-08-10 Thread Tuomas Leikola
On 8/9/07, Mario Goebbels [EMAIL PROTECTED] wrote: If you're that bent on having maximum redundancy, I think you should consider implementing real redundancy. I'm also biting the bullet and going mirrors (cheaper than RAID-Z for home, less disks needed to start with). Currently I am, and as

Re: [zfs-discuss] Force ditto block on different vdev?

2007-08-10 Thread Frank Cusack
On August 10, 2007 12:34:23 PM +0300 Tuomas Leikola [EMAIL PROTECTED] wrote: On 8/9/07, Richard Elling [EMAIL PROTECTED] wrote: What I'm looking for is a disk full error if ditto cannot be written to different disks. This would guarantee that a mirror is written on a separate disk - and

Re: [zfs-discuss] Force ditto block on different vdev?

2007-08-10 Thread James Blackburn
This is practically the holy grail of dynamic raid - the ability to dynamically use different redundancy settings on a per-directory level, and to use a mix of different sized devices and add/remove them at will. Well I suspect that arbitrary redundancy configuration is not something we'll

Re: [zfs-discuss] Force ditto block on different vdev?

2007-08-10 Thread Moore, Joe
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Frank Cusack Sent: Friday, August 10, 2007 7:26 AM To: Tuomas Leikola Cc: zfs-discuss@opensolaris.org Subject: Re: [zfs-discuss] Force ditto block on different vdev? On August 10, 2007 2:20:30 PM +0300 Tuomas Leikola [EMAIL

[zfs-discuss] Is there _any_ suitable motherboard?

2007-08-10 Thread Bhima Pandava
Hi, I am wondering what the readers of this list are using to control their ZFS RAID-Z arrays with. A quote from an under answered comment the OpenSolaris device driver forumhttp://www.opensolaris.org/jive/thread.jspa?threadID=32610tstart=0: *I'm having a hard time finding any decent

Re: [zfs-discuss] Force ditto block on different vdev?

2007-08-10 Thread Darren Dunham
Mirror and raidz suffer from the classic blockdevice abstraction problem in that they need disks of equal size. Not that I'm aware of. Mirror and raid-z will simply use the smallest size of your available disks. Exactly. The rest is not usable. Well I don't understand how you

[zfs-discuss] zfs on entire disk?

2007-08-10 Thread Russ Petruzzelli
Is it possible/recommended to create a zpool and zfs setup such that the OS itself (in root /) is in its own zpool? ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss

[zfs-discuss] zfs send/recv partial filesystem?

2007-08-10 Thread Shannon Fiume
Hi, I want to send peices of a zfs filesystem to another system. Can zfs send peices of a snapshot? Say I only want to send over /[EMAIL PROTECTED] and not include /app/conf data while /app/conf is still apart of the /[EMAIL PROTECTED] snapshot? I say app/conf as an example, it could be

[zfs-discuss] solved: zfs on entire disk?

2007-08-10 Thread Russ Petruzzelli
Thanks Cindy and Erik, The link to the boot page exactly answers my question. Russ Cindy Swearingen wrote: Hi Russ, If you are asking whether you can create a ZFS file system for the root file system and boot from it, it is possible on an x86 system running the Nevada release. Not

Re: [zfs-discuss] zfs send/recv partial filesystem?

2007-08-10 Thread Matthew Ahrens
Shannon Fiume wrote: Hi, I want to send peices of a zfs filesystem to another system. Can zfs send peices of a snapshot? Say I only want to send over /[EMAIL PROTECTED] and not include /app/conf data while /app/conf is still apart of the /[EMAIL PROTECTED] snapshot? I say app/conf as