Re: [zfs-discuss] raidz DEGRADED state
So there is no current way to specify the creation of a 3 disk raid-z array with a known missing disk? On 12/5/06, David Bustos david.bus...@sun.com wrote: Quoth Thomas Garner on Thu, Nov 30, 2006 at 06:41:15PM -0500: I currently have a 400GB disk that is full of data on a linux system. If I buy 2 more disks and put them into a raid-z'ed zfs under solaris, is there a generally accepted way to build an degraded array with the 2 disks, copy the data to the new filesystem, and then move the original disk to complete the array? No, because we currently can't add disks to a raidz array. You could create a mirror instead and then add in the other disk to make a three-way mirror, though. Even doing that would be dicey if you only have a single machine, though, since Solaris can't natively read the popular Linux filesystems. I believe there is freeware to do it, but nothing supported. David ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss -- 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] raidz DEGRADED state
Ah, did not see your follow up. Thanks. Chris On Thu, 30 Nov 2006, Cindy Swearingen wrote: Sorry, Bart, is correct: If new_device is not specified, it defaults to old_device. This form of replacement is useful after an existing disk has failed and has been physically replaced. In this case, the new disk may have the same /dev/dsk path as the old device, even though it is actu- ally a different disk. ZFS recognizes this. cs Cindy Swearingen wrote: One minor comment is to identify the replacement drive, like this: # zpool replace mypool2 c3t6d0 c3t7d0 Otherwise, zpool will error... cs Bart Smaalders wrote: Krzys wrote: my drive did go bad on me, how do I replace it? I am sunning solaris 10 U2 (by the way, I thought U3 would be out in November, will it be out soon? does anyone know? [11:35:14] server11: /export/home/me zpool status -x pool: mypool2 state: DEGRADED status: One or more devices could not be opened. Sufficient replicas exist for the pool to continue functioning in a degraded state. action: Attach the missing device and online it using 'zpool online'. see: http://www.sun.com/msg/ZFS-8000-D3 scrub: none requested config: NAMESTATE READ WRITE CKSUM mypool2 DEGRADED 0 0 0 raidz DEGRADED 0 0 0 c3t0d0 ONLINE 0 0 0 c3t1d0 ONLINE 0 0 0 c3t2d0 ONLINE 0 0 0 c3t3d0 ONLINE 0 0 0 c3t4d0 ONLINE 0 0 0 c3t5d0 ONLINE 0 0 0 c3t6d0 UNAVAIL 0 679 0 cannot open errors: No known data errors ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss Shut down the machine, replace the drive, reboot and type: zpool replace mypool2 c3t6d0 On earlier versions of ZFS I found it useful to do this at the login prompt; it seemed fairly memory intensive. - Bart ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss !DSPAM:122,456f1b0c21174266247132! ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss -- 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] raidz DEGRADED state
So there is no current way to specify the creation of a 3 disk raid-z array with a known missing disk? Can someone answer that? Or does the zpool command NOT accommodate the creation of a degraded raidz array? 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] raidz DEGRADED state
On Nov 20, 2007 6:34 AM, MC [EMAIL PROTECTED] wrote: So there is no current way to specify the creation of a 3 disk raid-z array with a known missing disk? Can someone answer that? Or does the zpool command NOT accommodate the creation of a degraded raidz array? can't started degraded, but you can make it so.. If one can make a sparse file, then you'd be set. Just create the file, make a zpool out of the two disks and the file, and then drop the file from the pool _BEFORE_ copying over the data. I believe then you can add the third disk as a replacement. The gotcha (and why the sparse may be needed) is that it will only use per disk the size of the smallest disk. This message posted from opensolaris.org ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] raidz DEGRADED state
Quoth Thomas Garner on Thu, Nov 30, 2006 at 06:41:15PM -0500: I currently have a 400GB disk that is full of data on a linux system. If I buy 2 more disks and put them into a raid-z'ed zfs under solaris, is there a generally accepted way to build an degraded array with the 2 disks, copy the data to the new filesystem, and then move the original disk to complete the array? No, because we currently can't add disks to a raidz array. You could create a mirror instead and then add in the other disk to make a three-way mirror, though. Even doing that would be dicey if you only have a single machine, though, since Solaris can't natively read the popular Linux filesystems. I believe there is freeware to do it, but nothing supported. David ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] raidz DEGRADED state
So there is no current way to specify the creation of a 3 disk raid-z array with a known missing disk? On 12/5/06, David Bustos [EMAIL PROTECTED] wrote: Quoth Thomas Garner on Thu, Nov 30, 2006 at 06:41:15PM -0500: I currently have a 400GB disk that is full of data on a linux system. If I buy 2 more disks and put them into a raid-z'ed zfs under solaris, is there a generally accepted way to build an degraded array with the 2 disks, copy the data to the new filesystem, and then move the original disk to complete the array? No, because we currently can't add disks to a raidz array. You could create a mirror instead and then add in the other disk to make a three-way mirror, though. Even doing that would be dicey if you only have a single machine, though, since Solaris can't natively read the popular Linux filesystems. I believe there is freeware to do it, but nothing supported. David ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] raidz DEGRADED state
Hi Krzys, On Thu, 2006-11-30 at 12:09 -0500, Krzys wrote: my drive did go bad on me, how do I replace it? You should be able to do this using zpool replace. There's output below from me simulating your situation with file-based pools. This is documented in Chapters 7 and 10 of the ZFS admin guide at: http://docs.sun.com/app/docs/doc/819-5461/6n7ht6qt0?a=view Hope this helps, cheers, tim # zpool status -v pool: ts-auto-pool state: ONLINE scrub: resilver completed with 0 errors on Thu Nov 30 17:14:25 2006 config: NAME STATE READ WRITE CKSUM ts-auto-pool ONLINE 0 0 0 mirror ONLINE 0 0 0 /ts-auto-pool.dat ONLINE 0 0 0 /file1 ONLINE 0 0 0 errors: No known data errors # rm -rf /file1 (blammo - device gone!) # zpool scrub ts-auto-pool # zpool status -v pool: ts-auto-pool state: DEGRADED status: One or more devices could not be opened. Sufficient replicas exist for the pool to continue functioning in a degraded state. action: Attach the missing device and online it using 'zpool online'. see: http://www.sun.com/msg/ZFS-8000-D3 scrub: scrub completed with 0 errors on Thu Nov 30 17:14:47 2006 config: NAME STATE READ WRITE CKSUM ts-auto-pool DEGRADED 0 0 0 mirror DEGRADED 0 0 0 /ts-auto-pool.dat ONLINE 0 0 0 /file1 UNAVAIL 0 0 0 cannot open errors: No known data errors # zpool replace ts-auto-pool /file1 /file2 # zpool status -v pool: ts-auto-pool state: DEGRADED scrub: resilver completed with 0 errors on Thu Nov 30 17:15:13 2006 config: NAME STATE READ WRITE CKSUM ts-auto-pool DEGRADED 0 0 0 mirror DEGRADED 0 0 0 /ts-auto-pool.dat ONLINE 0 0 0 replacing DEGRADED 0 0 0 /file1 UNAVAIL 0 0 0 cannot open /file2 ONLINE 0 0 0 errors: No known data errors # zpool status -v pool: ts-auto-pool state: ONLINE scrub: resilver completed with 0 errors on Thu Nov 30 17:15:13 2006 config: NAME STATE READ WRITE CKSUM ts-auto-pool ONLINE 0 0 0 mirror ONLINE 0 0 0 /ts-auto-pool.dat ONLINE 0 0 0 /file2 ONLINE 0 0 0 errors: No known data errors # I am sunning solaris 10 U2 (by the way, I thought U3 would be out in November, will it be out soon? does anyone know? [11:35:14] server11: /export/home/me zpool status -x pool: mypool2 state: DEGRADED status: One or more devices could not be opened. Sufficient replicas exist for the pool to continue functioning in a degraded state. action: Attach the missing device and online it using 'zpool online'. see: http://www.sun.com/msg/ZFS-8000-D3 scrub: none requested config: NAMESTATE READ WRITE CKSUM mypool2 DEGRADED 0 0 0 raidz DEGRADED 0 0 0 c3t0d0 ONLINE 0 0 0 c3t1d0 ONLINE 0 0 0 c3t2d0 ONLINE 0 0 0 c3t3d0 ONLINE 0 0 0 c3t4d0 ONLINE 0 0 0 c3t5d0 ONLINE 0 0 0 c3t6d0 UNAVAIL 0 679 0 cannot open errors: No known data errors -- Tim Foster, Sun Microsystems Inc, Solaris Engineering Ops http://blogs.sun.com/timf ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] raidz DEGRADED state
Krzys wrote: my drive did go bad on me, how do I replace it? I am sunning solaris 10 U2 (by the way, I thought U3 would be out in November, will it be out soon? does anyone know? [11:35:14] server11: /export/home/me zpool status -x pool: mypool2 state: DEGRADED status: One or more devices could not be opened. Sufficient replicas exist for the pool to continue functioning in a degraded state. action: Attach the missing device and online it using 'zpool online'. see: http://www.sun.com/msg/ZFS-8000-D3 scrub: none requested config: NAMESTATE READ WRITE CKSUM mypool2 DEGRADED 0 0 0 raidz DEGRADED 0 0 0 c3t0d0 ONLINE 0 0 0 c3t1d0 ONLINE 0 0 0 c3t2d0 ONLINE 0 0 0 c3t3d0 ONLINE 0 0 0 c3t4d0 ONLINE 0 0 0 c3t5d0 ONLINE 0 0 0 c3t6d0 UNAVAIL 0 679 0 cannot open errors: No known data errors ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss Shut down the machine, replace the drive, reboot and type: zpool replace mypool2 c3t6d0 On earlier versions of ZFS I found it useful to do this at the login prompt; it seemed fairly memory intensive. - Bart -- Bart Smaalders Solaris Kernel Performance [EMAIL PROTECTED] http://blogs.sun.com/barts ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] raidz DEGRADED state
Great, thank you, it certainly helped, I did not want to loose data on that disk therefore wanted to be sure than sorry thanks for help. Chris On Thu, 30 Nov 2006, Bart Smaalders wrote: Krzys wrote: my drive did go bad on me, how do I replace it? I am sunning solaris 10 U2 (by the way, I thought U3 would be out in November, will it be out soon? does anyone know? [11:35:14] server11: /export/home/me zpool status -x pool: mypool2 state: DEGRADED status: One or more devices could not be opened. Sufficient replicas exist for the pool to continue functioning in a degraded state. action: Attach the missing device and online it using 'zpool online'. see: http://www.sun.com/msg/ZFS-8000-D3 scrub: none requested config: NAMESTATE READ WRITE CKSUM mypool2 DEGRADED 0 0 0 raidz DEGRADED 0 0 0 c3t0d0 ONLINE 0 0 0 c3t1d0 ONLINE 0 0 0 c3t2d0 ONLINE 0 0 0 c3t3d0 ONLINE 0 0 0 c3t4d0 ONLINE 0 0 0 c3t5d0 ONLINE 0 0 0 c3t6d0 UNAVAIL 0 679 0 cannot open errors: No known data errors ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss Shut down the machine, replace the drive, reboot and type: zpool replace mypool2 c3t6d0 On earlier versions of ZFS I found it useful to do this at the login prompt; it seemed fairly memory intensive. - Bart -- Bart Smaalders Solaris Kernel Performance [EMAIL PROTECTED] http://blogs.sun.com/barts !DSPAM:122,456f173b1758223226276! ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] raidz DEGRADED state
Ah, did not see your follow up. Thanks. Chris On Thu, 30 Nov 2006, Cindy Swearingen wrote: Sorry, Bart, is correct: If new_device is not specified, it defaults to old_device. This form of replacement is useful after an existing disk has failed and has been physically replaced. In this case, the new disk may have the same /dev/dsk path as the old device, even though it is actu- ally a different disk. ZFS recognizes this. cs Cindy Swearingen wrote: One minor comment is to identify the replacement drive, like this: # zpool replace mypool2 c3t6d0 c3t7d0 Otherwise, zpool will error... cs Bart Smaalders wrote: Krzys wrote: my drive did go bad on me, how do I replace it? I am sunning solaris 10 U2 (by the way, I thought U3 would be out in November, will it be out soon? does anyone know? [11:35:14] server11: /export/home/me zpool status -x pool: mypool2 state: DEGRADED status: One or more devices could not be opened. Sufficient replicas exist for the pool to continue functioning in a degraded state. action: Attach the missing device and online it using 'zpool online'. see: http://www.sun.com/msg/ZFS-8000-D3 scrub: none requested config: NAMESTATE READ WRITE CKSUM mypool2 DEGRADED 0 0 0 raidz DEGRADED 0 0 0 c3t0d0 ONLINE 0 0 0 c3t1d0 ONLINE 0 0 0 c3t2d0 ONLINE 0 0 0 c3t3d0 ONLINE 0 0 0 c3t4d0 ONLINE 0 0 0 c3t5d0 ONLINE 0 0 0 c3t6d0 UNAVAIL 0 679 0 cannot open errors: No known data errors ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss Shut down the machine, replace the drive, reboot and type: zpool replace mypool2 c3t6d0 On earlier versions of ZFS I found it useful to do this at the login prompt; it seemed fairly memory intensive. - Bart ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss !DSPAM:122,456f1b0c21174266247132! ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] raidz DEGRADED state
In the same vein... I currently have a 400GB disk that is full of data on a linux system. If I buy 2 more disks and put them into a raid-z'ed zfs under solaris, is there a generally accepted way to build an degraded array with the 2 disks, copy the data to the new filesystem, and then move the original disk to complete the array? Thanks! Thomas On 11/30/06, Krzys [EMAIL PROTECTED] wrote: Ah, did not see your follow up. Thanks. Chris On Thu, 30 Nov 2006, Cindy Swearingen wrote: Sorry, Bart, is correct: If new_device is not specified, it defaults to old_device. This form of replacement is useful after an existing disk has failed and has been physically replaced. In this case, the new disk may have the same /dev/dsk path as the old device, even though it is actu- ally a different disk. ZFS recognizes this. cs Cindy Swearingen wrote: One minor comment is to identify the replacement drive, like this: # zpool replace mypool2 c3t6d0 c3t7d0 Otherwise, zpool will error... cs Bart Smaalders wrote: Krzys wrote: my drive did go bad on me, how do I replace it? I am sunning solaris 10 U2 (by the way, I thought U3 would be out in November, will it be out soon? does anyone know? [11:35:14] server11: /export/home/me zpool status -x pool: mypool2 state: DEGRADED status: One or more devices could not be opened. Sufficient replicas exist for the pool to continue functioning in a degraded state. action: Attach the missing device and online it using 'zpool online'. see: http://www.sun.com/msg/ZFS-8000-D3 scrub: none requested config: NAMESTATE READ WRITE CKSUM mypool2 DEGRADED 0 0 0 raidz DEGRADED 0 0 0 c3t0d0 ONLINE 0 0 0 c3t1d0 ONLINE 0 0 0 c3t2d0 ONLINE 0 0 0 c3t3d0 ONLINE 0 0 0 c3t4d0 ONLINE 0 0 0 c3t5d0 ONLINE 0 0 0 c3t6d0 UNAVAIL 0 679 0 cannot open errors: No known data errors ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss Shut down the machine, replace the drive, reboot and type: zpool replace mypool2 c3t6d0 On earlier versions of ZFS I found it useful to do this at the login prompt; it seemed fairly memory intensive. - Bart ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss !DSPAM:122,456f1b0c21174266247132! ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
