Re: [zfs-discuss] what have you been buying for slog and l2arc?

2012-08-04 Thread Hung-Sheng Tsao (LaoTsao) Ph.D
hi may be check out stec ssd or checkout the service manual of sun zfs appliance service manual to see the read and write ssd in the system regards Sent from my iPad On Aug 3, 2012, at 22:05, Hung-Sheng Tsao (LaoTsao) Ph.D laot...@gmail.com wrote: Intel 311 Series Larsen Creek 20GB 2.5

Re: [zfs-discuss] what have you been buying for slog and l2arc?

2012-08-03 Thread Hung-Sheng Tsao (LaoTsao) Ph.D
Intel 311 Series Larsen Creek 20GB 2.5 SATA II SLC Enterprise Solid State Disk SSDSA2VP020G201 Average Rating (12 reviews) Write a Review Sent from my iPad On Aug 3, 2012, at 21:39, Bob Friesenhahn bfrie...@simple.dallas.tx.us wrote: On Fri, 3 Aug 2012, Karl Rossing wrote: I'm looking at

Re: [zfs-discuss] unable to import the zpool

2012-08-02 Thread Hung-Sheng Tsao (LaoTsao) Ph.D
so zpool import -F .. zpool import -f ... all not working? regards Sent from my iPad On Aug 2, 2012, at 7:47, Suresh Kumar sachinnsur...@gmail.com wrote: Hi Hung-sheng, It is not displaying any output, like the following. bash-3.2# zpool import -nF tXstpool bash-3.2# Thanks

Re: [zfs-discuss] unable to import the zpool

2012-08-02 Thread Hung-Sheng Tsao (LaoTsao) Ph.D
hi can you post zpool history regards Sent from my iPad On Aug 2, 2012, at 7:47, Suresh Kumar sachinnsur...@gmail.com wrote: Hi Hung-sheng, It is not displaying any output, like the following. bash-3.2# zpool import -nF tXstpool bash-3.2# Thanks Regards, Suresh.

Re: [zfs-discuss] online increase of zfs after LUN increase ?

2012-07-26 Thread Hung-Sheng Tsao (LaoTsao) Ph.D
imho, the 147440-21 does not list the bugs that solved by 148098- even through it obsoletes the 148098 Sent from my iPad On Jul 25, 2012, at 18:14, Habony, Zsolt zsolt.hab...@hp.com wrote: Thank you for your replies. First, sorry for misleading info. Patch 148098-03 indeed not included

Re: [zfs-discuss] New fast hash algorithm - is it needed?

2012-07-11 Thread Hung-Sheng Tsao (LaoTsao) Ph.D
Sent from my iPad On Jul 11, 2012, at 13:11, Bob Friesenhahn bfrie...@simple.dallas.tx.us wrote: On Wed, 11 Jul 2012, Richard Elling wrote: The last studio release suitable for building OpenSolaris is available in the repo. See the instructions at

Re: [zfs-discuss] snapshots slow on sol11?

2012-06-27 Thread Hung-Sheng Tsao (LaoTsao) Ph.D
hi just wondering can you change from samba to SMB? regards Sent from my iPad On Jun 27, 2012, at 2:46, Carsten John cj...@mpi-bremen.de wrote: -Original message- CC:ZFS Discussions zfs-discuss@opensolaris.org; From:Jim Klimov jimkli...@cos.ru Sent:Tue 26-06-2012 22:34

Re: [zfs-discuss] (fwd) Re: ZFS NFS service hanging on Sunday

2012-06-25 Thread Hung-Sheng Tsao (LaoTsao) Ph.D
in solaris zfs cache many things, you should have more ram if you setup 18gb swap , imho, ram should be high than 4gb regards Sent from my iPad On Jun 25, 2012, at 5:58, tpc...@mklab.ph.rhul.ac.uk wrote: 2012-06-14 19:11, tpc...@mklab.ph.rhul.ac.uk wrote: In message

Re: [zfs-discuss] Good tower server for around 1,250 USD?

2012-03-23 Thread Hung-Sheng Tsao (LaoTsao) Ph.D
well check this link https://shop.oracle.com/pls/ostore/product?p1=SunFireX4270M2serverp2=p3=p4=sc=ocom_x86_SunFireX4270M2servertz=-4:00 you may not like the price Sent from my iPad On Mar 23, 2012, at 17:16, The Honorable Senator and Mrs. John Blutarskybl...@nymph.paranoici.org wrote:

Re: [zfs-discuss] Good tower server for around 1,250 USD?

2012-03-22 Thread Hung-Sheng Tsao (LaoTsao) Ph.D
well use component of x4170m2 as example you will be ok intel cpu lsi sas controller non raid sas 72rpm hdd my 2c Sent from my iPad On Mar 22, 2012, at 14:41, Bob Friesenhahn bfrie...@simple.dallas.tx.us wrote: On Thu, 22 Mar 2012, The Honorable Senator and Mrs. John Blutarsky wrote: This

Re: [zfs-discuss] Unable to import exported zpool on a new server

2012-03-13 Thread Hung-Sheng Tsao (LaoTsao) Ph.D
hi are the disk/sas controller the same on both server? -LT Sent from my iPad On Mar 13, 2012, at 6:10, P-O Yliniemi p...@bsd-guide.net wrote: Hello, I'm currently replacing a temporary storage server (server1) with the one that should be the final one (server2). To keep the data storage

Re: [zfs-discuss] Advice for migrating ZFS configuration

2012-03-07 Thread Hung-Sheng Tsao (LaoTsao) Ph.D
read the link please it seems that afmter you create the radiz1 zpool you need to destroy the fakedisk so it will have contains data when you to the copy copy the data by following the steps in the link replace the fakedisk withnthe real disk this is a good approach that i did not know before

Re: [zfs-discuss] need hint on pool setup

2012-02-01 Thread Hung-Sheng Tsao (laoTsao)
my 2c 1 just do mirror of 2 dev with 20 hdd with 1 spare 2 raidz2 with 5 dev for 20 hdd, with one spare Sent from my iPad On Feb 1, 2012, at 3:49, Thomas Nau thomas@uni-ulm.de wrote: Hi On 01/31/2012 10:05 PM, Hung-Sheng Tsao (Lao Tsao 老曹) Ph.D. wrote: what is your main

Re: [zfs-discuss] HP JBOD D2700 - ok?

2012-01-31 Thread Hung-Sheng Tsao (laoTsao)
what is the server you attach to D2700? the hp spec for d2700 did not include solaris, so not sure how you get support from hp:-( Sent from my iPad On Jan 31, 2012, at 20:25, Ragnar Sundblad ra...@csc.kth.se wrote: Just to follow up on this, in case there are others interested: The

Re: [zfs-discuss] zfs and iscsi performance help

2012-01-27 Thread Hung-Sheng Tsao (laoTsao)
hi IMHO, upgrade to s11 if possible use the COMSTAR based iscsi Sent from my iPad On Jan 26, 2012, at 23:25, Ivan Rodriguez ivan...@gmail.com wrote: Dear fellows, We have a backup server with a zpool size of 20 TB, we transfer information using zfs snapshots every day (we have around 300

Re: [zfs-discuss] unable to access the zpool after issue a reboot

2012-01-27 Thread Hung-Sheng Tsao (laoTsao)
it seems that you will need to work with oracle support:-( Sent from my iPad On Jan 27, 2012, at 3:49, sureshkumar sachinnsur...@gmail.com wrote: Hi Christian , I was disabled the MPXIO zpool clear is working for some times its failed in few iterations. I am using one Sparc machine

Re: [zfs-discuss] unable to access the zpool after issue a reboot

2012-01-24 Thread Hung-Sheng Tsao (laoTsao)
how did you issue reboot, try shutdown -i6 -y -g0 Sent from my iPad On Jan 24, 2012, at 7:03, sureshkumar sachinnsur...@gmail.com wrote: Hi all, I am new to Solaris I am facing an issue with the dynapath [multipath s/w] for Solaris10u10 x86 . I am facing an issue with the zpool.

Re: [zfs-discuss] patching a solaris server with zones on zfs file systems

2012-01-21 Thread Hung-Sheng Tsao (laoTsao)
which version of solaris? s10u? live upgrade, zfs snap, halt zone, backup zone, zoneadm detach zone, zoneadm attach -U zone after os upgrade by zfs snap and liveupgrade of just upgrade from dvd or s11? beadm for new root, upgrade os, treat zone as above regards Sent from my iPad On Jan 21,

Re: [zfs-discuss] Do the disks in a zpool have a private region that I can read to get a zpool name or id?

2012-01-12 Thread Hung-Sheng Tsao (laoTsao)
if the disks are assigned by two hosts may be just do zpool import should see the zpool in other hosts? not sure as for AIX, control hdd, zpool will need partition that solaris could understand i do not know what AIX used for partition should not be the same for solaris Sent from my iPad On

Re: [zfs-discuss] Unable to allocate dma memory for extra SGL

2012-01-10 Thread Hung-Sheng Tsao (laoTsao)
how is the ram size what is the zpool setup and what is your hba and hdd size and type Sent from my iPad On Jan 10, 2012, at 21:07, Ray Van Dolson rvandol...@esri.com wrote: Hi all; We have a Solaris 10 U9 x86 instance running on Silicon Mechanics / SuperMicro hardware. Occasionally

Re: [zfs-discuss] Stress test zfs

2012-01-05 Thread Hung-Sheng Tsao (laoTsao)
what is zpool zpool status are you using the default 128k stripsize for zpool is your server x86 ? or sparc t3 , how many socket? IMHO, t3 for oracle need careful tuning since many oracle ops need fast single thread cpu Sent from my iPad On Jan 5, 2012, at 11:40, grant lowe glow...@gmail.com

Re: [zfs-discuss] Stress test zfs

2012-01-05 Thread Hung-Sheng Tsao (laoTsao)
one still does not understand your setup 1 what is hba in T3-2 2 did u setup raid6 (how) in ramsan array? or present the ssd as jbod to zpool 3 which model of RAMSAN 4 are there any other storage behind RAMSAN 5 do you set up zpool with zil and or ARC? 6 IMHO, the hybre approach to ZFS is the most

Re: [zfs-discuss] Stress test zfs

2012-01-05 Thread Hung-Sheng Tsao (laoTsao)
i just take look the ramsan web site there are many whitepaper on oracle, none on ZFS Sent from my iPad On Jan 5, 2012, at 12:58, Hung-Sheng Tsao (laoTsao) laot...@gmail.com wrote: one still does not understand your setup 1 what is hba in T3-2 2 did u setup raid6 (how) in ramsan array

Re: [zfs-discuss] Stress test zfs

2012-01-04 Thread Hung-Sheng Tsao (laoTsao)
what is your storage? internal sas or external array what is your zfs setup? Sent from my iPad On Jan 4, 2012, at 17:59, grant lowe glow...@gmail.com wrote: Hi all, I've got a solaris 10 running 9/10 on a T3. It's an oracle box with 128GB memory RIght now oracle . I've been trying to

Re: [zfs-discuss] Resolving performance issue w/ deduplication (NexentaStor)

2011-12-30 Thread Hung-Sheng Tsao (laoTsao)
now s11 support shadow migration, just for this purpose, AFAIK not sure nexentaStor support shadow migration Sent from my iPad On Dec 30, 2011, at 2:03, Ray Van Dolson rvandol...@esri.com wrote: On Thu, Dec 29, 2011 at 10:59:04PM -0800, Fajar A. Nugraha wrote: On Fri, Dec 30, 2011 at 1:31

Re: [zfs-discuss] Very poor pool performance - no zfs/controller errors?!

2011-12-19 Thread Hung-Sheng Tsao (laoTsao)
what is the ram size? are there many snap? create then delete? did you run a scrub? Sent from my iPad On Dec 18, 2011, at 10:46, Jan-Aage Frydenbø-Bruvoll j...@architechs.eu wrote: Hi, On Sun, Dec 18, 2011 at 15:13, Hung-Sheng Tsao (Lao Tsao 老曹) Ph.D. laot...@gmail.com wrote: what are the

Re: [zfs-discuss] Very poor pool performance - no zfs/controller errors?!

2011-12-19 Thread Hung-Sheng Tsao (laoTsao)
Hung-Sheng Tsao (laoTsao) laot...@gmail.com: did you run a scrub? Yes, as part of the previous drive failure. Nothing reported there. Now, interestingly - I deleted two of the oldest snapshots yesterday, and guess what - the performance went back to normal for a while. Now it is severely

Re: [zfs-discuss] SATA hardware advice

2011-12-16 Thread Hung-Sheng Tsao (laoTsao)
imho, if possible pick sas 7200 hdd no hw-raid for ZFS mirror and with ZIL and good size memory Sent from my iPad On Dec 16, 2011, at 17:36, t...@ownmail.net wrote: I could use some help with choosing hardware for a storage server. For budgetary and density reasons, we had settled on LFF

Re: [zfs-discuss] ZFS Recovery: What do I try next?

2011-11-05 Thread LaoTsao
Dir you try Zpool clear -F bank0 with tbe latest solaris express? Sent from my iPad On Nov 5, 2011, at 2:35 PM, Myers Carpenter my...@maski.org wrote: I would like to pick the brains of the ZFS experts on this list: What would you do next to try and recover this zfs pool? I have a ZFS

Re: [zfs-discuss] zfs scripts

2011-09-10 Thread LaoTsao
imho, there is not harm to use in both cmd Sent from my iPad Hung-Sheng Tsao ( LaoTsao) Ph.D On Sep 10, 2011, at 4:59, Toby Thain t...@telegraphics.com.au wrote: On 09/09/11 6:33 AM, Sriram Narayanan wrote: Plus, you'll need an character at the end of each command. Only one

Re: [zfs-discuss] Does the zpool cache file affect import?

2011-08-29 Thread LaoTsao
Q? are you intent to import this zpool to different host? Sent from my iPad Hung-Sheng Tsao ( LaoTsao) Ph.D On Aug 29, 2011, at 14:13, Gary Mills mi...@cc.umanitoba.ca wrote: I have a system with ZFS root that imports another zpool from a start method. It uses a separate cache file

Re: [zfs-discuss] ZFS raidz on top of hardware raid0

2011-08-15 Thread LaoTsao
imho, not a good idea, any two hdd in your raid0 fail zpool is dead if possible just do one hdd raid0 then use zfs to do mirror raidz or raidz2 will be the last choice Sent from my iPad Hung-Sheng Tsao ( LaoTsao) Ph.D On Aug 12, 2011, at 21:34, Tom Tang thomps...@supermicro.com wrote: Suppose

Re: [zfs-discuss] Kernel panic on zpool import. 200G of data inaccessible!

2011-08-15 Thread LaoTsao
iirc if you use two hdd, you can import the zpool can you try to import -R with only two hdd at time Sent from my iPad Hung-Sheng Tsao ( LaoTsao) Ph.D On Aug 15, 2011, at 13:42, Stu Whitefish swhitef...@yahoo.com wrote: Unfortunately this panics the same exact way. Thanks for the suggestion

Re: [zfs-discuss] Disk IDs and DD

2011-08-09 Thread LaoTsao
nothing to worry about as for dd you need s? in addition to c8t0d0 Sent from my iPad Hung-Sheng Tsao ( LaoTsao) Ph.D On Aug 9, 2011, at 4:51, Lanky Doodle lanky_doo...@hotmail.com wrote: Hiya, Is there any reason (and anything to worry about) if disk target IDs don't start at 0 (zero

Re: [zfs-discuss] Mirrored rpool

2011-08-08 Thread LaoTsao
http://download.oracle.com/docs/cd/E19963-01/html/821-1448/gjtuk.html#gjtui Sent from my iPad Hung-Sheng Tsao ( LaoTsao) Ph.D On Aug 8, 2011, at 5:15, Lanky Doodle lanky_doo...@hotmail.com wrote: Hiya, I am using S11E Live CD to install. The install wouldn't let me select 2 disks

Re: [zfs-discuss] Exapnd ZFS storage.

2011-08-03 Thread LaoTsao
if you have 4 hdd then expand raidz is simple(from 4 hdd raidz) Sent from my iPad Hung-Sheng Tsao ( LaoTsao) Ph.D On Aug 3, 2011, at 3:02, Nix mithun.gaik...@gmail.com wrote: Hi, I have 4 disk with 1 TB of disk and I want to expand the zfs pool size. I have 2 more disk with 1 TB of size

Re: [zfs-discuss] L2ARC and poor read performance

2011-06-07 Thread LaoTsao
You have un balance setup Fc 4gbps vs 10gbps nic After 10b/8b encoding it is even worse, but this not yet impact your benchmark yet Sent from my iPad Hung-Sheng Tsao ( LaoTsao) Ph.D On Jun 7, 2011, at 5:46 PM, Phil Harman phil.har...@gmail.com wrote: On 07/06/2011 20:34, Marty Scholes wrote

Re: [zfs-discuss] ZFS issues and the choice of platform

2011-05-26 Thread LaoTsao
( LaoTsao) Ph.D On May 26, 2011, at 8:20 AM, Edward Ned Harvey opensolarisisdeadlongliveopensola...@nedharvey.com wrote: From: zfs-discuss-boun...@opensolaris.org [mailto:zfs-discuss- boun...@opensolaris.org] On Behalf Of Daniel Carosone On Wed, May 25, 2011 at 10:59:19PM +0200, Roy Sigurd

Re: [zfs-discuss] ZFS, Oracle and Nexenta

2011-05-24 Thread LaoTsao
Well With various fock of opensource project E.g. Zfs, opensolaris, openindina etc there are all different There are not guarantee to be compatible Sent from my iPad Hung-Sheng Tsao ( LaoTsao) Ph.D On May 24, 2011, at 4:40 PM, Ian Collins i...@ianshome.com wrote: On 05/25/11 07:49 AM, Brandon

Re: [zfs-discuss] GPU acceleration of ZFS

2011-05-10 Thread Hung-Sheng Tsao (LaoTsao) Ph. D.
IMHO, zfs need to run in all kind of HW T-series CMT server that can help sha calculation since T1 day, did not see any work in ZFS to take advantage it On 5/10/2011 11:29 AM, Anatoly wrote: Good day, I think ZFS can take advantage of using GPU for sha256 calculation, encryption and maybe

Re: [zfs-discuss] Proper procedure when device names have changed

2010-09-13 Thread LaoTsao 老曹
try export and import the zpool On 9/13/2010 1:26 PM, Brian wrote: I am running zfs-fuse on an Ubuntu 10.04 box. I have a dual mirrored pool: mirror sdd sde mirror sdf sdg Recently the device names shifted on my box and the devices are now sdc sdd sde and sdf. The pool is of course very

Re: [zfs-discuss] Suggested RaidZ configuration...

2010-09-07 Thread LaoTsao 老曹
may be 5x(3+1) use one disk from each controller, 15TB usable space, 3+1 raidz rebuild time should be reasonable On 9/7/2010 4:40 AM, hatish wrote: Thanks for all the replies :) My mindset is split in two now... Some detail - I'm using 4 1-to-5 Sata Port multipliers connected to a 4-port

Re: [zfs-discuss] ufs root to zfs root liveupgrade?

2010-08-29 Thread LaoTsao 老曹
important to update the menu.1st before reboot regards On 8/28/2010 5:17 PM, Ian Collins wrote: On 08/28/10 11:39 PM, LaoTsao 老曹 wrote: hi all Try to learn how UFS root to ZFS root liveUG work. I download the vbox image of s10u8, it come up as UFS root. add a new disks (16GB) create zpool rpool

[zfs-discuss] ufs root to zfs root liveupgrade?

2010-08-28 Thread LaoTsao 老曹
hi all Try to learn how UFS root to ZFS root liveUG work. I download the vbox image of s10u8, it come up as UFS root. add a new disks (16GB) create zpool rpool run lucreate -n zfsroot -p rpool run luactivate zfsroot run lustatus it do show zfsroot will be active in next boot init 6 but it

Re: [zfs-discuss] ufs root to zfs root liveupgrade?

2010-08-28 Thread LaoTsao 老曹
thx try to detach the old ufs and boot from the new zfsroot it fail I reattach the ufsroot disk and find out that in the rpool/boot/grub/menu.1st findroot (rootfs0,0,a) and not findroot (pool_rpool,0,a) not sure what is the correct findroot here even with this change to findroot and try to

Re: [zfs-discuss] ZFS with SAN's and HA

2010-08-27 Thread LaoTsao 老曹
On 8/27/2010 12:25 AM, Michael Dodwell wrote: Lao, I had a look at the HAStoragePlus etc and from what i understand that's to mirror local storage across 2 nodes for services to be able to access 'DRBD style'. not true, HAS+ use shred storage. in this case since ZFS is not clustered FS so

Re: [zfs-discuss] zpool status and format/kernel disagree about root disk

2010-08-27 Thread LaoTsao 老曹
hi may be boot a livecd then export and import the zpool? regards On 8/27/2010 8:27 AM, Rainer Orth wrote: For quite some time I'm bitten by the fact that on my laptop (currently running self-built snv_147) zpool status rpool and format disagree about the device name of the root disk:

Re: [zfs-discuss] Networker Dedup @ ZFS

2010-08-26 Thread LaoTsao 老曹
IMHO, if U use the backup SW that support dedupe in the SW then ZFS is still a viable solution On 8/26/2010 6:13 PM, Sigbjørn Lie wrote: Hi Daniel, We we're looking into very much the same solution you've tested. Thanks for your advise. I think we will look for something else. :) Just

Re: [zfs-discuss] ZFS with SAN's and HA

2010-08-26 Thread LaoTsao 老曹
be very careful here!! On 8/26/2010 9:16 PM, Michael Dodwell wrote: Hey all, I currently work for a company that has purchased a number of different SAN solutions (whatever was cheap at the time!) and i want to setup a HA ZFS file store over fiber channel. Basically I've taken slices from

Re: [zfs-discuss] Cloud Storage

2010-08-25 Thread LaoTsao 老曹
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

Re: [zfs-discuss] shrink zpool

2010-08-25 Thread LaoTsao 老曹
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 attachment: laotsao.vcf___ zfs-discuss mailing list zfs-discuss@opensolaris.org

Re: [zfs-discuss] slog and TRIM support

2010-08-25 Thread LaoTsao 老曹
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] ZFS Storage server hardwae

2010-08-25 Thread LaoTsao
sas-2 with 7200 rpm sas 1tb ot 2tb hdd --- Original message --- From: Dr. Martin Mundschenk m.mundsch...@me.com 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

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

2010-08-25 Thread LaoTsao 老曹
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] slog and TRIM support [SEC=UNCLASSIFIED]

2010-08-25 Thread LaoTsao 老曹
, Wilkinson, Alex wrote: 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