How to split a zfs/zpool mirror for backout purposes?
Hello,
I am upgrading Veritas from 5.1 to 6.0.1/6.0.5 in a Solaris 10 u8 server with OS mirrored (rpool) in zfs/zpool configuration.
I need to split it to have a quick way to backout in case of failure (make splitted mirror side bootable for a quick revert, like booting from it). I remember that I did that in SVM or when OS drive was encapsulated in VxVM, but don't know how to do it in zfs/zpool.
I've successfully booted from it just by recreating the zpool from the detached volume. it's already got the boot block in it because it was part of the root pool.
---------- Post updated at 09:44 AM ---------- Previous update was at 09:40 AM ----------
so the basic procedure here is to detach the second volume. proceed with your patching and then if you want to recover, destroy the zpool with the remaining volume, and do a zpool import to rebuild the zpool from the detached volume.
If you reattach it... it will sync the bad data over the good. Which isn't really what you want unless you intend to destroy the reserved copy.
So,
We have a Netapp storage solution. We have Sparc T4-4s running with LDOMS and client zones in the LDOMS, We are using FC for storage comms. So here's the basic setup
FC luns are exported to the primary on the Sparc box. using LDM they are then exported to the LDOM using vdisk. at the... (4 Replies)
Hi everyone,
I'm hoping someone can help me out here. I've googled lots and don't think I can find an easy answer to this.
We're in the process of upgrading Solaris from v10 5/08 to v10 9/10. The zpools for luns are currently at version 10, and I understand Solaris v10 9/10 has support for... (3 Replies)
running VM server for Sparc on a Solaris 11 server. I have a Guest LDOm that had two seperate zpools running, one for the zones and one for the OS. The OS was corrupted and had to be replaced. The zones zfs file system is intact I think. I still have access to the disk and can still see it in... (3 Replies)
Hallo,
Using a zpool mirror; is there a way to set something like a primary storage / preferred vdevs / read-first devices like it was in disksuite using "metaparam -r " or the "vxvol rdpol " to define a preferred plex in VxVM? Will ZFS always use round-robin?
In our example we want to use a... (3 Replies)
I am trying to test simple zfs functionality on a FreeBSD 8.2 VM. When I try to run a 'zpool create' I receive the following error:
# zpool create zfspool /dev/da0s1a
cannot create 'zfspool': no such pool or dataset
# zpool create zfspool /dev/da0
cannot create 'zfspool': no such pool or... (3 Replies)
Hi All,
I am trying to read zpool.cache file to find out pool information like pool name, devices it uses and all properties.
File seems to be in packed format.I am not sure how to unpack it.
But from opensolaris code base we can see that they have used libz for uncompromising this file, but... (0 Replies)
I've looked a little but haven't found a solid answer, assuming there is one.
What's better, hardware mirroring or ZFS mirroring? Common practice for us was to use the raid controllers on the Sun x86 servers. Now we've been using ZFS mirroring since U6. Any performance difference? Any other... (3 Replies)
Is it possible to create a Mirror with zfs ??
I'm experimented user with Solstice Disk suite.
Or Sun Volume manager or veritas volume manager.
But, i would like switch from Disksuite to Zfs.
All my mirrored disks. (1 Reply)