search for: metadevices

I''m curious about if there are any potential problems with using LVM metadevices as ZFS zpool targets. I have a couple of situations where using a device directly by ZFS causes errors on the console about "Bus and lots of "stalled" I/O. But as soon as I wrap that device inside an LVM metadevice and then use it in the ZFS zpool things work perfectly fine and smoo...

I assume that a zvol has a vtoc. What tags are supported? Thanks, Brian -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://mail.opensolaris.org/pipermail/zfs-discuss/attachments/20070427/57e1a64f/attachment.html>

Hi, There''s something really bizarre in ZFS snaphot specs : "Uses no separate backing store." . Hum...if I want to mutualize one physical volume somewhere in my SAN as THE snaphots backing-store...it becomes impossible to do ! Really bad. Is there any chance to have a "backing-store-file" option in a future release ? In the same idea, it would be great to

We have some HDS storage that isn''t supported by mpxio, so we have to use veritas dmp to get multipathing. Whats the recommended way to use DMP storage with ZFS. I want to use DMP but get at the multipathed virtual luns at as low a level as possible to avoid using vxvm as much as possible. I figure theres no point in having overhead from 2 volume manages if we can avoid it. Has anyone

...t working for some reason. I started by doing a CentOS-4 install on /dev/sda1 as root, and with /dev/sda2 as my swap. I finish the install, yum update, and then I want to make the mirrors. I copy the partition table from one disk to the other: # sfdisk -d /dev/sda | sfdisk /dev/sdb I create my metadevices: # mdadm -Cv -l1 -n2 /dev/md1 /dev/sdb1 missing # mdadm -Cv -l1 -n2 /dev/md2 /dev/sdb2 missing I create my filesystems: # mkfs.ext3 /dev/md1 # mkswap /dev/md2 I change the /etc/fstab to use /dev/md1 for / and /dev/md2 for swap. I change the /etc/grub.conf to use /dev/md1 for the root= paramete...

Hi. bash-3.00# uname -a SunOS nfs-14-2.srv 5.10 Generic_125101-03 i86pc i386 i86pc I created first zpool (stripe of 85 disks) and did some simple stress testing - everything seems almost alright (~700MB seq reads, ~430 seqential writes). Then I destroyed pool and put SVM stripe on top the same disks utilizing the fact that zfs already put EFI and s0 represents almost entire disk. The on top on

Please reply to david.curtis at sun.com ******** Background / configuration ************** zpool will not create a storage pool on fibre channel storage. I''m attached to an IBM SVC using the IBMsdd driver. I have no problem using SVM metadevices and UFS on these devices. List steps to reproduce the problem(if applicable): Build Solaris 10 Update 2 server Attach to an external storage array via IBM SVC Load lpfc driver (6.02h) Load IBMsdd software (1.6.1.0-2) Attempt to use zpool create to make a storage pool: # zpool create -f extdisk v...

Hello all, It was often asked and discussed on the list about "how to change rpool HDDs from AHCI to IDE mode" and back, with the modern routine involving reconfiguration of the BIOS, bootup from separate live media, simple import and export of the rpool, and bootup from the rpool. The documented way is to reinstall the OS upon HW changes. Both are inconvenient to say the least.

Just posted: http://blogs.sun.com/roch/entry/nfs_and_zfs_a_fine ____________________________________________________________________________________ Performance, Availability & Architecture Engineering Roch Bourbonnais Sun Microsystems, Icnc-Grenoble Senior Performance Analyst 180, Avenue De L''Europe, 38330, Montbonnot Saint

I have a question about using mixed vdev in the same zpool and what the community opinion is on the matter. Here is my setup: I have four 1TB drives and two 500GB drives. When I first setup ZFS I was under the assumption that it does not really care much on how you add devices to the pool and it assumes you are thinking things through. But when I tried to create a pool (called group) with four

running b37 on amd64. after removing power from a disk configured as a mirror, 10 minutes has passed and ZFS has still not offlined it. # zpool status tank pool: tank state: ONLINE status: One or more devices has experienced an unrecoverable error. An attempt was made to correct the error. Applications are unaffected. action: Determine if the device needs to be replaced, and clear

Hi everyone, I'm looking into setting up a SATA hardware raid, probably 5 to use with CentOS 4. I chose hardware raid over software mostly because I like the fact that the raid is transparent to the OS. Does anyone know of any SATA controllers that are well tested for this sort of usage? From what I can tell from googling, this is more or less where RHEL stands: Red Hat Enterprise Linux