search for: rmilkowski

What is a use case of setting a reservation on the base pool object? Say I have a pool of 3 100GB drives dynamic striped (pool size of 300GB), and I set the reservation to 200GB. I don''t see any commands that let me ever reduce a pool''s size, so how is the 200GB reservation used? Related question: is there a plan in the future to allow me to replace the 3 100GB drives with 2

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

...C bash-3.00# uname -a SunOS nfs-10-1.srv 5.10 Generic_125100-04 sun4u sparc SUNW,Sun-Fire-V440 bash-3.00# showrev -p|grep IDR Patch: IDR126199-01 Obsoletes: Requires: 120473-05 Incompatibles: 120473-06 Packages: SUNWzfskr bash-3.00# -- Best regards, Robert mailto:rmilkowski at task.gda.pl http://milek.blogspot.com

Hello zfs-discuss, I wonder if ZFS will be able to take any advantage of Niagara''s built-in crypto? -- Best regards, Robert Milkowski mailto:rmilkowski at task.gda.pl http://milek.blogspot.com

...changed in last few snv releases which is not going to be in u2)? I want to put right now (I have to do it now) some data on ZFS and later I want to reinstall system to s10u2 but I do not want to migrate data - just export/import. -- Best regards, Robert mailto:rmilkowski at task.gda.pl http://milek.blogspot.com

If anyone is running this configuration, I have some questions for you about Page83 data errors. This message posted from opensolaris.org

...t would be beneficial if ZFS behaves that way not only for block which are going to be compressed but for all block regardless of compression. Or perhaps making this simple check would too much impact CPU for normal data? ? -- Best regards, Robert mailto:rmilkowski at task.gda.pl http://milek.blogspot.com

Is there a best practice guide for using zfs as a basic rackable small storage solution? I''m considering zfs with a 2U 12 disk Xeon based server system vs something like a second hand FAS250. Target enviroment is mixature of Xen or VI hosts via iSCSI and nfs/cifs. Being able to take snapshots of running (or maybe paused) xen iscsi vols and re-export then for cloning and remote backup

hi all, I am hoping to move roughly 1TB of maildir format email to ZFS, but I am unsure of what the most appropriate disk configuration on a 3510 would be. based on the desired level of redundancy and usable space, my thought was to create a pool consisting of 2x RAID-Z vdevs (either double parity, or single parity with two hot-spares). using 300GB drives this would give roughly 2.4TB of usable

...s UFS file system on D. workaround: create a test pool with -f on D and E, destroy it and that create first pool with D and E as hotspares. I''ve tested it on s10u3 + patches - can someone confirm it on latest nv? -- Best regards, Robert Milkowski mailto:rmilkowski at task.gda.pl http://milek.blogspot.com

Hello zfs-discuss, http://milek.blogspot.com/2007/04/hw-raid-vs-zfs-software-raid-part-iii.html -- Best regards, Robert Milkowski mailto:rmilkowski at task.gda.pl http://milek.blogspot.com

Hi all. A quick question about the checksum error detection routines in ZFS. Surely ZFS can decide about checksum errors in a redundant environment but what about an non-redundant one? We connected a single RAID5 array to a v440 as a NFS server and while doing backups and the like we see the "zpool status -v" checksum error counters increment once in a while. Nevertheless the

Hi All, ZPOOL / ZFS commands writes EFI label on a device if we create ZPOOL/ZFS fs on it. Is it true ? I formatted a device with VTOC lable and I created a ZFS file system on it. Now which label the ZFS device has ? is it old VTOC or EFI ? After creating the ZFS file system on a VTOC labeled disk, I am seeing the following warning messages. Feb 3 07:47:00 scoobyb

The slides from my ZFS presentation at OSCON (as well as some additional information) are available at http://www.meangrape.com/ 2007/08/oscon-zfs/ Jay Edwards jay at meangrape.com http://www.meangrape.com -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://mail.opensolaris.org/pipermail/zfs-discuss/attachments/20070802/f2fa7b08/attachment.html>

Hi, I have been seeing data corruption on the ZFS filesystem. Here are some details. The machine is running s10 on X86 platform with a single 160Gb SATA disk. (root on s0 and zfs on s7) ...Sanjaya --------- /etc/release ---------- -bash-3.00# cat /etc/release Solaris 10 6/06 s10x_u2wos_09a X86 Copyright 2006 Sun Microsystems, Inc. All Rights

Hi zfs-discuss, I have some questions about throttling on ZFS 1) I know that throttling is activating while one sync is waiting for another. (http://blogs.sun.com/roller/page/roch?entry=the_dynamics_of_zfs) Is it possible to throttle only selected processes (e.g. nfsd) ? 2) How can I obtain some statistics about it? I want to know how often throttling is activating on my host etc. 3) Is it

hi all, i''ve been using a SAN LUN as the sole member of a zpool with one additional zfs filesystem. this is a flat SAN fabric, so this LUN was available to other systems on the fabric, and one of them came up with "wrong magic number" for several drives, and, as best i can tell, the vtoc for my zpool LUN was over-written on that host via format labeling to correct the error.

The paragraph below is from ZFS admin guide Traditional Volume Management As described in ?ZFS Pooled Storage? on page 18, ZFS eliminates the need for a separate volume manager. ZFS operates on raw devices, so it is possible to create a storage pool comprised of logical volumes, either software or hardware. This configuration is not recommended, as ZFS works best when it uses raw physical

This may not be the answer you''re looking for, but I don''t know if it''s something you''ve thought of. If you''re pulling a LUN from an expensive array, with multiple HBA''s in the system, why not run mpxio? If you ARE running mpxio, there shouldn''t be an issue with a path dropping. I have the setup above in my test lab and pull cables

...n snapshot is provided as an argument zfs destroy wouldn''t actually destroy it. That way it would be much safer to write scripts. What do you think? I can implement it and send diffs - should be really simple. -- Best regards, Robert mailto:rmilkowski at task.gda.pl http://milek.blogspot.com