Re: [zfs-discuss] zpool rpool rename offline
You can't change the name of a zpool without importing it. For what you're attempting to do, why not attach a larger vdisk and mirror the existing disk in rpool? Then drop the smaller vdisk and you'll have a larger rpool. Alternatively, take a look at "beadm" as it should have a means of creating a new BE on your rpool2, though I suspect you will have to install grub on it to make it bootable once you remove the old rpool. -Phil Sent from my iPad On Dec 2, 2012, at 3:14 PM, "Heiko L." wrote: > Hallo, > > Howto rename zpool offline (with zdb)? > > I use OpenSolaris in a VM. > Pool rpool is to small. > So i create rpool2 and copy FS from rpool: > domu # zfs send -R $srcpool@$srcsnap | zfs receive -vFd $dstpool > > status: > domu # zpool list > NAME SIZE USED AVAILCAP HEALTH ALTROOT > rpool 3,97G 3,00G 988M75% ONLINE - > rpool2 5,97G 3,00G 2,97G50% ONLINE - > > > dom0 # xm list $vm -l | egrep "vbd|:disk|zvol" >(vbd >(dev xvda:disk) >(uname phy:/dev/zvol/dsk/rpool/zvol/domu-2-root) >(vbd >(dev xvdb:disk) >(uname phy:/dev/zvol/dsk/rpool/zvol/domu-21-root) > > > Pool rpool2 should be rename to rpool. > But pool rpool is online, no rename is possible. > Howto rename rpool2 to rpool (with zdb) offline? > > regards Heiko > > > ___ > 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] zpool rpool rename offline
On Mon, Dec 3, 2012 at 4:14 AM, Heiko L. wrote: > Hallo, > > Howto rename zpool offline (with zdb)? You don't. You simply export the pool, and import it (zpool import). Something like # zpool import old_pool_name_or_ID new_pool_name > > I use OpenSolaris in a VM. > Pool rpool is to small. > So i create rpool2 and copy FS from rpool: > domu # zfs send -R $srcpool@$srcsnap | zfs receive -vFd $dstpool There's more required then simply copying the data. See http://docs.oracle.com/cd/E23824_01/html/821-1448/recover-4.html If your VM is full virtualization (e.g. hvm), then the instructions should be the same. If it's xen PV, then the hardest part might be finding the correct kernel boot parameter. > Pool rpool2 should be rename to rpool. Not really. Last time I tried with some version of opensolaris, you can use whatever pool name you want IF you create it manually (e.g. use a variant of the above instructions). Check grub command line, it should include the pool name to boot. However note that using a pool name other than rpool is AFAIK unsupported, so you might be best just follow the instructions above. In your case it should basically be boot with rescue CD and WITHOUT the old pool disks, then importing the new pool using a new name (rpool), then follow the relevant part or the docs. -- Fajar ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
[zfs-discuss] zpool rpool rename offline
Hallo, Howto rename zpool offline (with zdb)? I use OpenSolaris in a VM. Pool rpool is to small. So i create rpool2 and copy FS from rpool: domu # zfs send -R $srcpool@$srcsnap | zfs receive -vFd $dstpool status: domu # zpool list NAME SIZE USED AVAILCAP HEALTH ALTROOT rpool 3,97G 3,00G 988M75% ONLINE - rpool2 5,97G 3,00G 2,97G50% ONLINE - dom0 # xm list $vm -l | egrep "vbd|:disk|zvol" (vbd (dev xvda:disk) (uname phy:/dev/zvol/dsk/rpool/zvol/domu-2-root) (vbd (dev xvdb:disk) (uname phy:/dev/zvol/dsk/rpool/zvol/domu-21-root) Pool rpool2 should be rename to rpool. But pool rpool is online, no rename is possible. Howto rename rpool2 to rpool (with zdb) offline? regards Heiko ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] Remove disk
Bob Friesenhahn wrote: On Sat, 1 Dec 2012, Jan Owoc wrote: When I would like to change the disk, I also would like change the disk enclosure, I don't want to use the old one. You didn't give much detail about the enclosure (how it's connected, how many disk bays it has, how it's used etc.), but are you able to power off the system and transfer the all the disks at once? And what happen if I have 24, 36 disks to change ? It's take mounth to do that. Those are the current limitations of zfs. Yes, with 12x2TB of data to copy it could take about a month. You can create a brand new pool with the new chassis and use 'zfs send' to send a full snapshot of each filesystem to the new pool. After the bulk of the data has been transferred, take new snapshots and send the remainder. This expects that both pools can be available at once. or if you don't care about existing snapshots, use Shadow Migration to move the data across. -- Andrew Gabriel ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] Remove disk
On Sat, 1 Dec 2012, Jan Owoc wrote: When I would like to change the disk, I also would like change the disk enclosure, I don't want to use the old one. You didn't give much detail about the enclosure (how it's connected, how many disk bays it has, how it's used etc.), but are you able to power off the system and transfer the all the disks at once? And what happen if I have 24, 36 disks to change ? It's take mounth to do that. Those are the current limitations of zfs. Yes, with 12x2TB of data to copy it could take about a month. You can create a brand new pool with the new chassis and use 'zfs send' to send a full snapshot of each filesystem to the new pool. After the bulk of the data has been transferred, take new snapshots and send the remainder. This expects that both pools can be available at once. Bob -- Bob Friesenhahn bfrie...@simple.dallas.tx.us, http://www.simplesystems.org/users/bfriesen/ GraphicsMagick Maintainer,http://www.GraphicsMagick.org/ ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] 6Tb Database with ZFS
On Sat, 1 Dec 2012, Fung Zheng wrote: Hello, Thanks for you reply, i forgot to mention that the doc "Configuring ZFS for an Oracle Database" was followed, this include primarycache, logbias, recordsize properties, all the best practices was followed and my only doubt is the arc_max parameter, i want to know if 24Gb is good enough for a 6Tb database, someone have had implemented something similar? which was the value used for arc_max? As I recall, you can tune zfs_arc_max while the system is running so you can easily adjust this while your database is running and observe behavior and without rebooting. It is possible that my recollection is wrong though. If my recollection is correct, then it is not so important to know what is "good enough" before starting to put your database in service. Bob -- Bob Friesenhahn bfrie...@simple.dallas.tx.us, http://www.simplesystems.org/users/bfriesen/ GraphicsMagick Maintainer,http://www.GraphicsMagick.org/ ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
