Re: [zfs-discuss] Networker & Dedup @ ZFS

Hi, What sort of compression ratio do you get? Sigbjorn On Wed, August 18, 2010 12:59, Hans Foertsch wrote: > Hello, > > > we use ZFS on Solaris 10u8 as a backup to disk solution with EMC Networker. > > We use the standard recordsize 128k and zfs compression. > > > Dedup we can't use, because

Re: [zfs-discuss] Networker & Dedup @ ZFS

Wow, not bad! What is your CPU penalty for enabling compression? Sigbjorn On Wed, August 18, 2010 14:11, Paul Kraus wrote: > On Wed, Aug 18, 2010 at 7:51 AM, Peter Tribble > wrote: > > >> I tried this with NetBackup, and decided against it pretty rapidly. >> Basically, we >> got hardly any

[zfs-discuss] (preview) Whitepaper - ZFS Pools Explained - feedback welcome

Hello list, while following this list for more then 1 year, I feel that this list was a great way to get insights into ZFS. Thank you all for contributing. Over the last month's I was writing a little "whitepaper" trying to consolidate the knowledge collected here. It has now reached a "beta"

Re: [zfs-discuss] Networker & Dedup @ ZFS

On Wed, Aug 25, 2010 at 3:27 AM, Sigbjorn Lie wrote: > Wow, not bad! > > What is your CPU penalty for enabling compression? Not noticeable on the server side. The NBU servers are M4000 with 4 dual core CPUs, so we have (effectively) 16 CPUs and 16 GB of RAM. The load does climb to the 7 to 8 regi

[zfs-discuss] System hangs during zfs send

Hi, I've been following these forums for a long time but this is my first post. I'm looking for some advice on debugging an issue. I've been looking at all the bug reports and updates though b146 but I can't find a good match. I tried the fix for 6937998 but it didn't help. Running Nexenta N

Re: [zfs-discuss] System hangs during zfs send

What does ::zio_state show? Dave On 08/25/10 07:41, Bryan Leaman wrote: Hi, I've been following these forums for a long time but this is my first post. I'm looking for some advice on debugging an issue. I've been looking at all the bug reports and updates though b146 but I can't find a good

Re: [zfs-discuss] System hangs during zfs send

More info: > ::zio_state ADDRESS TYPE STAGEWAITER ff02cf248c88 NULL OPEN - ff02e3dec348 NULL OPEN - ff02e3e6d6a0 NULL OPEN - --

Re: [zfs-discuss] Networker & Dedup @ ZFS

Sigbjorn Stop! Don't do it... it's a waste of time. We tried exactly what you're thinking of... we bought two Sun/Oracle 7000 series storage units with 20TB of ZFS storage each planning to use them as a backup target for Networker. We ran into several issues eventually gave up the ZFS networker

[zfs-discuss] Cloud Storage

This is slightly off topic, so I apologise in advance. I'm investigating the option of offering private "cloud storage". I've found many things which offer features that I want, but nothing that seems to glue them all together into a useful whole. Thus I would like to pick your collective b

Re: [zfs-discuss] Cloud Storage

IMHO, may be take look the ZFS appliance (7000 storage) from oracle it provide GUI for Dtrace based Analytics and WGUI management. It support 1/2 PB now and will be support much more in near future. http://www.oracle.com/us/products/servers-storage/039224.pdf it support local cluster and remot

[zfs-discuss] shrink zpool

Is it currently or near future possible to shrink a zpool "remove a disk" -- This message posted from opensolaris.org ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss

Re: [zfs-discuss] Cloud Storage

On 8/25/10 12:42 PM, J.P. King wrote: What I would like to achieve: Large (by my standard) scale storage. Lets say petabyte scale... Redundancy across machines of data An Amazon S3 style interface Sounds like OpenStack Swift http://openstack.org/projects/storage/ Wes Felter __

Re: [zfs-discuss] shrink zpool

On Wed, Aug 25, 2010 at 11:34 AM, Mike DeMarco wrote: > Is it currently or near future possible to shrink a zpool "remove a disk" Short answer: no. Long answer: search the archives for "block pointer rewrite" for all the gory details. :) -- Freddie Cash fjwc...@gmail.com __

Re: [zfs-discuss] shrink zpool

not possible now On 8/25/2010 2:34 PM, Mike DeMarco wrote: Is it currently or near future possible to shrink a zpool "remove a disk" <>___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss

Re: [zfs-discuss] SCSI write retry errors on ZIL SSD drives...

Ray Supermicro does not support the use of SSDs behind an expander. You must put the SSD in the head or use an interposer card see here: http://www.lsi.com/storage_home/products_home/standard_product_ics/sas_sata_protocol_bridge/lsiss9252/index.html Supermicro offers an interposer card too: AOCSM

[zfs-discuss] slog and TRIM support

I'm trying to pick between an Intel X25-M or Intel X25-E for a slog device. At some point in the future, TRIM support will become available . The X25-M support TRIM while X25-E don't support trim. Does TRIM support mat

Re: [zfs-discuss] slog and TRIM support

IMHO, U want -E for ZIL and -M for L2ARC On 8/25/2010 2:44 PM, Karl Rossing wrote: I'm trying to pick between an Intel X25-M or Intel X25-E for a slog device. At some point in the future, TRIM support will become available

Re: [zfs-discuss] SCSI write retry errors on ZIL SSD drives...

On Wed, Aug 25, 2010 at 11:47:38AM -0700, Andreas Grüninger wrote: > Ray > > Supermicro does not support the use of SSDs behind an expander. > > You must put the SSD in the head or use an interposer card see here: > http://www.lsi.com/storage_home/products_home/standard_product_ics/sas_sata_proto

Re: [zfs-discuss] (preview) Whitepaper - ZFS Pools Explained - feedback welcome

Although it's bit much Nexenta oriented, command wise. It's a nice introduction. I did found one thing, page 28 about the zil. There's no zil device, the zil can be written to an optional slog device. And the last line first paragraph, "If you can, use memory based SSD devices". At least change

Re: [zfs-discuss] Dedup - Does "on" imply "sha256?"

On Tue, Aug 24, 2010 at 9:45 PM, Peter Taps wrote: > Essentially, "on" is just a pseudonym for "sha256" and "verify" is just a > pseudonym for "sha256,verify." > > Can someone please confirm if this is true? When dedup was initially announced, dedup=on was fletcher4. There was a problem with the

[zfs-discuss] ZFS Storage server hardwae

Hi! I'm running a OSOL box for quite a while and I think ZFS is an amazing filesystem. As a computer I use a Apple MacMini with USB and FireWire devices attached. Unfortunately the USB and sometimes the FW devices just die, causing the whole system to stall, forcing me to do a hard reboot. I h

Re: [zfs-discuss] ZFS Storage server hardwae

On Wed, Aug 25, 2010 at 12:29 PM, Dr. Martin Mundschenk wrote: > Well, I wonder what are the components to build a stable system without > having an enterprise solution: eSATA, USB, FireWire, FibreChannel? I wouldn't consider anything except FC or SAS for a true enterprise solution. -B -- Bra

Re: [zfs-discuss] ZFS Storage server hardwae

sas-2 with 7200 rpm sas 1tb ot 2tb hdd --- Original message --- From: Dr. Martin Mundschenk To: zfs-discuss@opensolaris.org Sent: 25.8.'10, 15:29 Hi! I'm running a OSOL box for quite a while and I think ZFS is an amazing filesystem. As a computer I use a Apple MacMini with USB and F

Re: [zfs-discuss] (preview) Whitepaper - ZFS Pools Explained - feedback welcome

dtrace is DTrace On 8/25/2010 3:27 PM, F. Wessels wrote: Although it's bit much Nexenta oriented, command wise. It's a nice introduction. I did found one thing, page 28 about the zil. There's no zil device, the zil can be written to an optional slog device. And the last line first paragraph,

Re: [zfs-discuss] SCSI write retry errors on ZIL SSD drives...

This was the information I got from the distributor but this faq is newer. Anyway you have still the problems. When we installed the Intel-X25 we had also problems with timeout. We replaced the original SUN StorageTek SAS HBA (LSI based, 1068E, newest firmware) with an original SUN StorageTek SA

Re: [zfs-discuss] Dedup - Does "on" imply "sha256?"

Thank you all for your help. It appears it is better to use "on" instead of "sha256." This way, you are letting zfs decide the best option. Regards, Peter -- This message posted from opensolaris.org ___ zfs-discuss mailing list zfs-discuss@opensolaris

Re: [zfs-discuss] Halcyon ZFS and system monitoring software for OpenSolaris (beta)

Update: version 3.2.5 out now, with changes to better support snv_134: http://forums.halcyoninc.com/showthread.php?t=368 If you've downloaded v3.2.4 and are on 09/06, there is no reason to upgrade. Regards, mike.k...@halcyoninc.com -- This message posted from opensolaris.org __

Re: [zfs-discuss] System hangs during zfs send

So I don't know if I'm on the right track, but I've been looking at the threadlist and findstack output from above, specifically this thread which seems to be what zpool-syspool is stuck on: > 0xff000fa05c60::findstack -v stack pointer for thread ff000fa05c60: ff000fa05860 [ ff00

Re: [zfs-discuss] ZFS Storage server hardwae

I'm currently using SXCE with eSATA (with an LSI controller) and SAS disks in my home boxes and they run just fine. The only glitch I had after LU-upgrading to the latest release is eSATA disk not spinning down any longer when idle. I export file systems with NFS to my Macs: beware that Mac OS X

Re: [zfs-discuss] ZFS Storage server hardwae

On Wed, Aug 25, 2010 at 12:29 PM, Dr. Martin Mundschenk wrote: > I'm running a OSOL box for quite a while and I think ZFS is an amazing > filesystem. As a computer I use a Apple MacMini with USB and FireWire devices > attached. Unfortunately the USB and sometimes the FW devices just die, > caus

Re: [zfs-discuss] slog and TRIM support [SEC=UNCLASSIFIED]

0n Wed, Aug 25, 2010 at 02:54:42PM -0400, LaoTsao ?? wrote: >IMHO, U want -E for ZIL and -M for L2ARC Why ? -Alex IMPORTANT: This email remains the property of the Department of Defence and is subject to the jurisdiction of section 70 of the Crimes Act 1914. If you have recei

Re: [zfs-discuss] slog and TRIM support [SEC=UNCLASSIFIED]

-M has larger capacity and L2ARC is mostly for read and not much write and U also need memory for ARC L2ARC should be the sze of Ur working dataset ZIL is mostly for write and U want SSD for better write and longer life and ZIl may be <=1/2 phy memory regards On 8/25/2010 9:18 PM, Wilkins

Re: [zfs-discuss] ZFS offline ZIL corruption not detected

> From: zfs-discuss-boun...@opensolaris.org [mailto:zfs-discuss- > boun...@opensolaris.org] On Behalf Of Neil Perrin > > This is a consequence of the design for performance of the ZIL code. > Intent log blocks are dynamically allocated and chained together. > When reading the intent log we read ea

Re: [zfs-discuss] ZFS Storage server hardwae

> From: zfs-discuss-boun...@opensolaris.org [mailto:zfs-discuss- > boun...@opensolaris.org] On Behalf Of Dr. Martin Mundschenk > > devices attached. Unfortunately the USB and sometimes the FW devices > just die, causing the whole system to stall, forcing me to do a hard > reboot. > > Well, I wond

Re: [zfs-discuss] ZFS offline ZIL corruption not detected

On 08/25/10 20:33, Edward Ned Harvey wrote: From: zfs-discuss-boun...@opensolaris.org [mailto:zfs-discuss- boun...@opensolaris.org] On Behalf Of Neil Perrin This is a consequence of the design for performance of the ZIL code. Intent log blocks are dynamically allocated and chained together. When

Re: [zfs-discuss] (preview) Whitepaper - ZFS Pools Explained - feedback welcome

Thanks for the feedback, the idea of it is to give people new to ZFS a understanding of the terms and mode of operations to avoid common problems (wide stripe pools etc.). Also agreed that it is a little NexentaStor "tweaked" :) I think I have to rework the zil section anyhow because of http:/

Re: [zfs-discuss] ZFS Storage server hardwae

Am 26.08.2010 um 04:38 schrieb Edward Ned Harvey: > There is no such thing as reliable external disks. Not unless you want to > pay $1000 each, which is dumb. You have to scrap your mini, and use > internal (or hotswappable) disks. > > Never expect a mini to be reliable. They're designed to b

Re: [zfs-discuss] ZFS offline ZIL corruption not detected

Hello, actually this is bad news. I always assumed that the mirror redundancy of zil can also be used to handle bad blocks on the zil device (just as the main pool self healing does for data blocks). I actually dont know how SSD's "die", because of the "wear out" characteristics I can think