Re: [zfs-discuss] Re: Re: Re: gzip compression throttles system?

2007-05-11 Thread Darren J Moffat
Bill Sommerfeld wrote: On Thu, 2007-05-10 at 10:10 -0700, Jürgen Keil wrote: Btw: In one experiment I tried to boot the kernel under kmdb control (-kd), patched minclsyspri := 61 and used a breakpoint inside spa_active() to patch the spa_zio_* taskq to use prio 60 when importing the gzip

Re: [zfs-discuss] Will this work?

2007-05-11 Thread Manoj Joseph
Robert Thurlow wrote: I've written some about a 4-drive Firewire-attached box based on the Oxford 911 chipset, and I've had I/O grind to a halt in the face of media errors - see bugid 6539587. I haven't played with USB drives enough to trust them more, but this was a hole I fell in with

[zfs-discuss] Re: Optimal strategy (add or replace disks) to build a cheap and raidz?

2007-05-11 Thread Pål Baltzersen
I use Supermicro AOC-SAT2-MV8 It is 8-port SATA2, JBOD only, and literally plugplay (sol10u3) and just ~100Euro It is PCI-X but mine is plugged into a plain PCI slot/mobo and works fine. (Don't know how much better it would perform on a PCI-X slot/mobo). I bought mine here:

Re: [Fwd: Re: [zfs-discuss] Will this work?]

2007-05-11 Thread Al Hopper
On Fri, 11 May 2007, Sophia Li wrote: Original Message On 5/10/07, Al Hopper [EMAIL PROTECTED] wrote: My personal opinion is that USB is not robust enough under (Open)Solaris to provide the reliability that someone considering ZFS is looking for. I base this on

[zfs-discuss] Re: How does ZFS write data to disks?

2007-05-11 Thread lonny
I've noticed a similar behavior in my writes. ZFS seems to write in bursts of around 5 seconds. I assume it's just something to do with caching? I was watching the drive lights on the T2000s with 3 disk raidz and the disks all blink a couple seconds then are solid for a few seconds. Is this

Re: [zfs-discuss] zpool create -f ... fails on disk with previous UFS on it

2007-05-11 Thread eric kustarz
On May 10, 2007, at 10:04 PM, Matthew Flanagan wrote: Hi, I have a test server that I use for testing my different jumpstart installations. This system is continuously installed and reinstalled with different system builds. For some builds I have a finish script that creates a zpool using

Re: [zfs-discuss] Re: How does ZFS write data to disks?

2007-05-11 Thread Bob Netherton
On Fri, 2007-05-11 at 09:00 -0700, lonny wrote: I've noticed a similar behavior in my writes. ZFS seems to write in bursts of around 5 seconds. I assume it's just something to do with caching? Yep - the ZFS equivalent of fsflush. Runs more often so the pipes don't get as clogged. We've had

[zfs-discuss] Re: Optimal strategy (add or replace disks) to build a cheap and raidz?

2007-05-11 Thread Pål Baltzersen
Just my problem too ;) And ZFS disapointed me big time here! I know ZFS is new and every desired feature isn't implemented yet. I hope and beleive more features are comming soon, so I think I'll stay with ZFS and wait.. My idea was to start out with just as many state-of-the-art size disks I

[zfs-discuss] Re: How does ZFS write data to disks?

2007-05-11 Thread lonny
On May 11, 2007, at 9:09 AM, Bob Netherton wrote: **On Fri, 2007-05-11 at 09:00 -0700, lonny wrote: **I've noticed a similar behavior in my writes. ZFS seems to write in bursts of ** around 5 seconds. I assume it's just something to do with caching? ^Yep - the ZFS equivalent of fsflush. Runs

Re: [zfs-discuss] Re: How does ZFS write data to disks?

2007-05-11 Thread Neil . Perrin
lonny wrote: On May 11, 2007, at 9:09 AM, Bob Netherton wrote: **On Fri, 2007-05-11 at 09:00 -0700, lonny wrote: **I've noticed a similar behavior in my writes. ZFS seems to write in bursts of ** around 5 seconds. I assume it's just something to do with caching? ^Yep - the ZFS equivalent of

Re: [zfs-discuss] Lost in boot loop..

2007-05-11 Thread Matthew B Sweeney - Sun Microsystems Inc.
Hey Steve, Not that I can help you out but I'm in the same boat. I'm using nv63 with the zfsbootkit. I've build a DVD after patching the netinstall. The instructions work fine, but I get the boot loop you describe. I haven't been able to catch the error yet, even with a boot

Re: [zfs-discuss] Lost in boot loop..

2007-05-11 Thread Lori Alt
zfs boot should work on b62, but does not work on b63 (see bug 6553537). This bug is supposed to be fixed in b65 (I'm testing the most recent nevada bits today to verify the fix). I'm not sure what's up with the build 62 problem that Steffen is having. Steffen, if you'll send me more

[zfs-discuss] ZFS Snapshot destroy to

2007-05-11 Thread Jason J. W. Williams
Hey All, Is it possible (or even technically feasible) for zfs to have a destroy to feature? Basically destroy any snapshot older than a certain date? Best Regards, Jason ___ zfs-discuss mailing list zfs-discuss@opensolaris.org

Re: [zfs-discuss] ZFS Snapshot destroy to

2007-05-11 Thread Mark J Musante
On Fri, 11 May 2007, Jason J. W. Williams wrote: Is it possible (or even technically feasible) for zfs to have a destroy to feature? Basically destroy any snapshot older than a certain date? Sorta-kinda. You can use 'zfs get' to get the creation time of a snapshot. If you give it -p, it'll

Re: [zfs-discuss] ZFS Snapshot destroy to

2007-05-11 Thread Jason J. W. Williams
Hi Mark, Thank you very much. That's what I was kind of afraid of. Its fine to script it, just would be nice to have a built in function. :-) Thank you again. Best Regards, Jason On 5/11/07, Mark J Musante [EMAIL PROTECTED] wrote: On Fri, 11 May 2007, Jason J. W. Williams wrote: Is it

Re: [zfs-discuss] Is this a workable ORACLE disaster recovery solution?

2007-05-11 Thread Matthew Ahrens
Bruce Shaw wrote: Mark J Musante [EMAIL PROTECTED] wrote: Maybe I'm misunderstanding what you're saying, but 'zfs clone' is exactly the way to mount a snapshot. Creating a clone uses up a negligible amount of disk space, provided you never write to it. And you can always set readonly=on if

Re: [zfs-discuss] ZFS Snapshot destroy to

2007-05-11 Thread Matthew Ahrens
Jason J. W. Williams wrote: Hi Mark, Thank you very much. That's what I was kind of afraid of. Its fine to script it, just would be nice to have a built in function. :-) Thank you again. Note, when writing such a script, you will get the best performance by destroying the snapshots in order

Re: [zfs-discuss] iscsitadm local_name in ZFS

2007-05-11 Thread Adam Leventhal
That would be a great RFE. Currently the iSCSI Alias is the dataset name which should help with identification. Adam On Fri, May 04, 2007 at 02:02:34PM +0200, cedric briner wrote: cedric briner wrote: hello dear community, Is there a way to have a ``local_name'' as define in iscsitadm.1m