similar to: safe zfs-level snapshots with a UFS-on-ZVOL filesystem?

Hi, ZFS experts, From ZFS release notes, " Solaris 10 6/06 and Solaris 10 11/06: Do Not Place the Root File Systemof a Non-Global Zone on ZFS. The zonepath of a non-global zone should not reside on ZFS for this release. This action might result in patching problems and possibly prevent the system from being upgraded to a later Solaris 10 update release." So my question is, do we

Hi, I''m preparing a personal TPC-H benchmark. The goal is not to measure or optimize the database performance, but to compare ZFS to UFS in similar configurations. At the moment I''m preparing the tests at home. The test setup is as follows: . Solaris snv_37 . 2 x AMD Opteron 252 . 4 GB RAM . 2 x 80 GB ST380817AS . Oracle 10gR2 (small SGA (320m)) The disks also contain the OS

Hi all! First off, if this has been discussed, please point me in that direction. I have searched high and low and really can''t find much info on the subject. We have a large-ish (200gb) UFS file system on a Sun Enterprise 250 that is being shared with samba (lots of files, mostly random IO). OS is Solaris 10u3. Disk set is 7x36gb 10k scsi, 4 internal 3 external. For several

Hi, I''m working on some performance analysis with our database and it seems that when the file system (UFS) is mounted with forcedirectio, the IO probe are not triggered when an I/O event occurs. Could you confirm that ? If so, why ? Seb -- This message posted from opensolaris.org

Team, **Please respond to me and my coworker listed in the Cc, since neither one of us are on this alias** QUICK PROBLEM DESCRIPTION: Cu created a dataset which contains all the zvols for a particular zone. The zone is then given access to all the zvols in the dataset using a match statement in the zoneconfig (see long problem description for details). After the initial boot of the zone

Hi samba experts, We have a strange file locking problem and i hope someone can help. We use some CentOS 5 servers, which use samba 3.0.33, to share files of a java application to clients. Clients are mostly CentOS 5 (same version as the server), but there are a few legacy windows clients (the reason why we use samba and not nfs). And now the problem. When our developer uploads a new jar file to

In order to get more information on IO performance problems I created the script below: #!/usr/sbin/dtrace -s #pragma D option flowindent syscall::*write*:entry /pid == $1 && guard++ == 0/ { self -> ts = timestamp; self->traceme = 1; printf("fd: %d", arg0); } fbt::: /self->traceme/ { /* elapsd =timestamp - self -> ts; printf("

Hi, am I doing something wrong, ZFS does not support that or there is a bug that zvol clone does not show up under /dev/zvol after creating it from other zvol snapshot? # zfs list -t all | grep local local 136G 76.8G 144K none local/home 117G 76.8G 117G /home local/vm 18.4G 76.8G 144K

Hi, I have a question, let''s say I have a zvol named vol1 which is a clone of a snapshot of another zvol (its origin property is tank/myvol at mysnap). If I send this zvol to a different zpool through a zfs send does it send the origin too that is, does an automatic promotion happen or do I end up whith a broken zvol? Best regards. Maurilio. -- This message posted from

> I tried to copy a 8GB Xen domU disk image from a zvol device > to an image file on an ufs filesystem, and was surprised that > reading from the zvol character device doesn''t detect "EOF". > > On snv_66 (sparc) and snv_73 (x86) I can reproduce it, like this: > > # zfs create -V 1440k tank/floppy-img > > # dd if=/dev/zvol/dsk/tank/floppy-img

How can I set up a ZVOL that''s accessible by non-root users, too? The intent is to use sparse ZVOLs as raw disks in virtualization (reducing overhead compared to file-based virtual volumes). Thanks, -mg This message posted from opensolaris.org

Hi all, I have a situation where I need to consolidate a few servers running Solaris 9 and 8. If the application doesn''t run natively on Solaris 10 or Nevada, I was thinking of using Solars 9 or 8 branded zones. My intent would be for the global zone to use ZFS boot/root; would I be correct in thinking that this will be OK for the branded zones? That is, they don''t care about

-bash-3.2# zpool export exchbk cannot remove device links for ''exchbk/exchbk-2'': dataset is busy this is a zvol used for a comstar iscsi backend: -bash-3.2# stmfadm list-lu -v LU Name: 600144F0EAC0090000004A0A4F410001 Operational Status: Offline Provider Name : sbd Alias : /dev/zvol/rdsk/exchbk/exchbk-1 View Entry Count : 1 LU Name:

I''ve upgraded my system from ufs to zfs (root pool). By default, it creates a zvol for dump and swap. It''s a 4GB Ultra-45 and every late night/morning I run a job which takes around 2GB of memory. With a zvol swap, the system becomes unusable and the Sun Ray client often goes into "26B". So I removed the zvol swap and now I have a standard swap partition. The

Hey all - Time for my silly question of the day, and before I bust out vi and dtrace... If there a simple, existing way I can observe the read / write / IOPS on a per-zvol basis? If not, is there interest in having one? Cheers! Nathan.

Looks like I forgot to send this to the alias... MRJ ---- A quick heads up for the iscsi, zvol, and vdisk format putback I did into the 3.3 development gate. ISCSI ===== With this putback, you can now install onto and boot a guest using iSCSI disk(s). The iscsi formats supported are: phy:iscsi:/alias/<iscsi-alias> phy:iscsi:/static/<server IP>/<lun>/<target

ZVOL was recently converted to use range locking, but it seems the comment below wasn''t updated: /* * There must be no buffer changes when doing a dmu_sync() * because * we can''t change the data whilst calculating the checksum. * A better approach than a per zvol rwlock would be to lock * ranges. */ -- Pawel Jakub Dawidek http://www.wheel.pl

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>

Hello zfs-discuss, What would you rather propose for ZFS+ORACLE - zvols or just files from the performance standpoint? -- Best regards, Robert mailto:rmilkowski at task.gda.pl http://milek.blogspot.com

I''ve looked for anything I can find on the topic, but there does not appear to be anything documented. Can a ZVOL be expanded? In particular, can a ZVOL sharded via iscsi be expanded? Thanks, Charles