Re: [zfs-discuss] ZFS development moving behind closed doors
On Sun, Aug 15, 2010 at 9:13 AM, David Magda wrote: > On Aug 14, 2010, at 19:39, Kevin Walker wrote: > >> I once watched a video interview with Larry from Oracle, this ass rambled >> on >> about how he hates cloud computing and that everyone was getting into >> cloud >> computing and in his opinion no one understood cloud computing, apart from >> him... :-| > > If this is the video you're talking about, I think you misinterpreted what > he meant: > >> Cloud computing is not only the future of computing, but it is the >> present, and the entire past of computing is all cloud. [...] All it is is a >> computer connected to a network. What do you think Google runs on? Do you >> think they run on water vapour? It's databases, and operating systems, and >> memory, and microprocessors, and the Internet. And all of a sudden it's none >> of that, it's "the cloud". [...] All "the cloud" is, is computers on a >> network, in terms of technology. In terms of business model, you can say >> it's rental. All SalesForce.com was, before they were cloud computing, was >> software-as-a-service, and then they became cloud computing. [...] Our >> industry is so bizarre: they change a term and think they invented >> technology. > > http://www.youtube.com/watch?v=rmrxN3GWHpM#t=45m > > I don't see any inaccurate in what said. Indeed; even waaay before the SaaSillyness, they were know as service bureaus: http://drcoddwasright.blogspot.com/2009/07/cloud-lucy-in-sky-with-razorblades.html ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] ZFS on Ubuntu
On Fri, Jun 25, 2010 at 9:08 PM, Erik Trimble wrote: > (2) Ubuntu is a desktop distribution. Don't be fooled by their "server" > version. It's not - it has too many idiosyncrasies and bad design choices to > be a stable server OS. Use something like Debian, SLES, or RHEL/CentOS. Why would you say that? What "idiosyncrasies and bad design choices" are you talking about? Just curious. ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] Native ZFS for Linux
On Tue, Jun 8, 2010 at 7:14 PM, Anurag Agarwal wrote: > We at KQInfotech, initially started on an independent port of ZFS to linux. > When we posted our progress about port last year, then we came to know about > the work on LLNL port. Since then we started working on to re-base our > changing on top Brian's changes. > > We are working on porting ZPL on that code. Our current status is that > mount/unmount is working. Most of the directory operations and read/write is > also working. There is still lot more development work and testing that > needs to be going in this. But we are committed to make this happen so > please stay tuned. Good times ahead! ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
[zfs-discuss] Snapshot question
While reading about NILFS here: http://www.linux-mag.com/cache/7345/1.html I saw this: *One of the most noticeable features of NILFS is that it can "continuously > and automatically save instantaneous states of the file system without > interrupting service". NILFS refers to these as checkpoints. In contrast, > other file systems such as ZFS, can provide snapshots but they have to suspend > operation to perform the snapshot operation. NILFS doesn’t have to do > this. The snapshots (checkpoints) are part of the file system design itself. > * > I don't think that's correct. Can someone clarify? ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
[zfs-discuss] Apple Removes Nearly All Reference To ZFS
http://hardware.slashdot.org/story/09/06/09/2336223/Apple-Removes-Nearly-All-Reference-To-ZFS ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] ZFS, difference in reported available space?
Tim, Nevermind. I should have Read The Fine Manual (tm) from the start. Says zpool(1M): --- (...) zpool list (...) (...) This command reports actual physical space available to the storage pool. The physical space can be different from the total amount of space that any contained datasets can actually use. The amount of space used in a raidz configuration depends on the characteristics of the data being written. In addition, ZFS reserves some space for internal accounting that the zfs(1M) command takes into account, but the zpool command does not. For non-full pools of a reasonable size, these effects should be invisible. For small pools, or pools that are close to being completely full, these discrepancies may become more noticeable. (...) --- Thanks for your time. Regards. ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] ZFS, difference in reported available space?
On Sun, May 31, 2009 at 12:57 PM, Tim wrote: > > On Sun, May 31, 2009 at 10:29 AM, Rodrigo E. De León Plicet > wrote: >> >> Related to the attached file, I just want to understand why, if 'zpool >> list' reports 191MB available for coolpool, 'df -h|grep cool' only >> shows 159MB available for coolpool? > > That's not a bug, and the behavior isn't changing. zpool list shows the > size of the entire pool, including parity disks. You cannot write user data > to parity disks/devices. I suppose you could complain that the zpool list > command should account for user data as well as parity data being subtracted > from the entire pool, bug regardless, you shouldn't be using zpool list to > track your data usage as it doesn't "hide" parity space like the standard > userland utilities. > > df shows the space available minus the parity device(s). But, in this case, I'm using mirroring. Wouldn't the ZFS parity overhead apply to raidz/raidz2 only? I confess I'm not 100% clear on the concepts... Thanks for your time. Regards. ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] ZFS rollback, ORA-00322: log 1 of thread 1 is not current copy (???)
Nevermind, found the reason. Linux caching was messing with things. Workaround: http://linux-mm.org/Drop_Caches Regards. ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
[zfs-discuss] ZFS, difference in reported available space?
Hi. Just to report the following. Thanks for your time. Regards. Forwarded conversation Subject: Difference in reported available space? From: Rodrigo E. De León Plicet Date: Wed, May 27, 2009 at 1:00 PM To: zfs-f...@googlegroups.com Sorry if the following is a dumb question. Related to the attached file, I just want to understand why, if 'zpool list' reports 191MB available for coolpool, 'df -h|grep cool' only shows 159MB available for coolpool? Thanks for your time. Regards. ------ From: Rodrigo E. De León Plicet Date: Sat, May 30, 2009 at 8:51 PM To: zfs-f...@googlegroups.com Anyone? -- From: Fajar A. Nugraha Date: Sun, May 31, 2009 at 5:34 AM To: zfs-f...@googlegroups.com Possibly upstream bug. http://markmail.org/message/zmygvaarfvseipzx Better ask Sun folks, as it still happens on latest opensolaris (2009.06) as well. -- Fajar r...@localhost:/# uname -a Linux newage 2.6.24-24-generic #1 SMP Wed Apr 15 15:54:25 UTC 2009 i686 GNU/Linux r...@localhost:/# zpool upgrade -v This system is currently running ZFS pool version 13. The following versions are supported: VER DESCRIPTION --- 1 Initial ZFS version 2 Ditto blocks (replicated metadata) 3 Hot spares and double parity RAID-Z 4 zpool history 5 Compression using the gzip algorithm 6 bootfs pool property 7 Separate intent log devices 8 Delegated administration 9 refquota and refreservation properties 10 Cache devices 11 Improved scrub performance 12 Snapshot properties 13 snapused property For more information on a particular version, including supported releases, see: http://www.opensolaris.org/os/community/zfs/version/N Where 'N' is the version number. r...@localhost:/# for i in 1 2 3 4; do dd if=/dev/zero of=disk$i bs=1024k count=100; done r...@localhost:/# du -h disk* 101Mdisk1 101Mdisk2 101Mdisk3 101Mdisk4 r...@localhost:/# zpool create coolpool mirror /disk1 /disk2 r...@localhost:/# zpool add coolpool mirror /disk3 /disk4 r...@localhost:/# zpool status pool: coolpool state: ONLINE scrub: none requested config: NAMESTATE READ WRITE CKSUM coolpoolONLINE 0 0 0 mirrorONLINE 0 0 0 /disk1 ONLINE 0 0 0 /disk2 ONLINE 0 0 0 mirrorONLINE 0 0 0 /disk3 ONLINE 0 0 0 /disk4 ONLINE 0 0 0 errors: No known data errors r...@localhost:/# zpool list NAME SIZE USED AVAILCAP HEALTH ALTROOT coolpool 191M78K 191M 0% ONLINE - r...@localhost:/# df -h|grep cool coolpool 159M 18K 159M 1% /coolpool ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
[zfs-discuss] ZFS rollback, ORA-00322: log 1 of thread 1 is not current copy (???)
Hi. Using ZFS-FUSE. $SUBJECT happened 3 out of 5 times while testing, just wanna know if someone has seen such scenario before. Steps: r...@localhost:/# uname -a Linux localhost 2.6.24-24-generic #1 SMP Wed Apr 15 15:54:25 UTC 2009 i686 GNU/Linux r...@localhost:/# zpool upgrade -v This system is currently running ZFS pool version 13. The following versions are supported: VER DESCRIPTION --- 1 Initial ZFS version 2 Ditto blocks (replicated metadata) 3 Hot spares and double parity RAID-Z 4 zpool history 5 Compression using the gzip algorithm 6 bootfs pool property 7 Separate intent log devices 8 Delegated administration 9 refquota and refreservation properties 10 Cache devices 11 Improved scrub performance 12 Snapshot properties 13 snapused property For more information on a particular version, including supported releases, see: http://www.opensolaris.org/os/community/zfs/version/N Where 'N' is the version number. r...@localhost:/# mv u01 u01.bak r...@localhost:/# for i in 1 2 3 4; do dd if=/dev/zero of=disk$i bs=1024k count=2048; done r...@localhost:/# du -k disk* 2099204 disk1 2099204 disk2 2099204 disk3 2099204 disk4 r...@localhost:/# zpool create coolpool /disk1 /disk2 /disk3 /disk4 r...@localhost:/# zpool status pool: coolpool state: ONLINE scrub: none requested config: NAMESTATE READ WRITE CKSUM coolpoolONLINE 0 0 0 /disk1ONLINE 0 0 0 /disk2ONLINE 0 0 0 /disk3ONLINE 0 0 0 /disk4ONLINE 0 0 0 errors: No known data errors r...@localhost:/# zfs create -o mountpoint=/u01 coolpool/u01 r...@localhost:/# cp -av /u01.bak/* /u01/ r...@localhost:/# zpool list NAME SIZE USED AVAILCAP HEALTH ALTROOT coolpool 7.94G 6.43G 1.51G80% ONLINE - r...@localhost:/# zfs list NAME USED AVAIL REFER MOUNTPOINT coolpool 6.43G 1.39G18K /coolpool coolpool/u01 6.43G 1.39G 6.43G /u01 r...@localhost:/# ls -l /u01/oradata/orcl/ total 2339863 -rw-r- 1 oracle oinstall 9781248 2009-05-31 03:27 control01.ctl -rw-r- 1 oracle oinstall 9781248 2009-05-31 03:27 control02.ctl -rw-r- 1 oracle oinstall 9781248 2009-05-31 03:27 control03.ctl -rw-r- 1 oracle oinstall 26214912 2009-05-31 03:26 redo01.rdo -rw-r- 1 oracle oinstall 26214912 2009-05-31 03:27 redo02.rdo -rw-r- 1 oracle oinstall 26214912 2009-05-31 03:26 redo03.rdo -rw-r- 1 oracle oinstall 473964544 2009-05-31 03:27 sysaux01.dbf -rw-r- 1 oracle oinstall 159391744 2009-05-31 03:27 sysaux02.dbf -rw-r- 1 oracle oinstall 602939392 2009-05-31 03:27 system01.dbf -rw-r- 1 oracle oinstall 214966272 2009-05-31 03:27 system02.dbf -rw-r- 1 oracle oinstall 125837312 2009-05-31 03:26 temp01.dbf -rw-r- 1 oracle oinstall 601890816 2009-05-31 03:27 undotbs01.dbf -rw-r- 1 oracle oinstall 105914368 2009-05-31 03:27 users01.dbf r...@localhost:/# zfs snapshot coolpool/u...@ok r...@localhost:/# zfs list NAME USED AVAIL REFER MOUNTPOINT coolpool 6.43G 1.39G18K /coolpool coolpool/u01 6.43G 1.39G 6.43G /u01 coolpool/u...@ok 0 - 6.43G - ora...@localhost:/> sqlplus / as sysdba SQL*Plus: Release 11.1.0.6.0 - Production on Sun May 31 03:38:02 2009 Copyright (c) 1982, 2007, Oracle. All rights reserved. Connected to an idle instance. SQL> startup ORACLE instance started. Total System Global Area 418484224 bytes Fixed Size 1300324 bytes Variable Size 218106012 bytes Database Buffers 192937984 bytes Redo Buffers6139904 bytes Database mounted. Database opened. SQL> CREATE TABLE FOO(BAR NUMBER); Table created. SQL> INSERT INTO FOO VALUES (1); 1 row created. SQL> COMMIT; Commit complete. SQL> shutdown immediate Database closed. Database dismounted. ORACLE instance shut down. SQL> exit Disconnected from Oracle Database 11g Enterprise Edition Release 11.1.0.6.0 - Production With the Partitioning, OLAP, Data Mining and Real Application Testing options r...@localhost:/# zfs list NAME USED AVAIL REFER MOUNTPOINT coolpool 6.44G 1.37G18K /coolpool coolpool/u01 6.44G 1.37G 6.43G /u01 coolpool/u...@ok 12.4M - 6.43G - r...@localhost:/# zfs rollback coolpool/u...@ok r...@localhost:/# ls -l /u01/oradata/orcl/ total 2339863 -rw-r- 1 oracle oinstall 9781248 2009-05-31 03:27 control01.ctl -rw-r- 1 oracle oinstall 9781248 2009-05-31 03:27 control02.ctl -rw-r- 1 oracle oinstall 9781248 2009-05-31 03:27 control03.ctl -rw-r- 1 oracle oinstall 26214912 2009-05-31 03:26 redo01.rdo -rw-r- 1 oracle oinstall 26214912 2009-05-31 03:27 redo02.rdo -rw-r- 1 oracle oinstall 26214912 2009-05-31 03:26 redo03.rdo -rw-r- 1
