similar to: ZFS equivalent of inotify

Why does ZFS report such small directory sizes? For example, take a maildir directory with ten entries: total 2385 drwx------ 8 17121 vmail 10 Jun 8 23:50 . drwx--x--x 14 root root 14 May 12 2006 .. drwx------ 5 17121 vmail 5 May 25 18:16 .Trash drwx------ 5 17121 staff 6 Jun 9 00:01 .testing -rw------- 1 17121 staff 0 Jun

Suppose I have a single ZFS pool on a single disk; I want to upgrade the system to use two different, larger disks and I want to mirror. Can I do something like: - I start with disk #0 - add mirror on disk #1 (resilver) - replace first disk (#0) with disk #2 (resilver) Casper

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

So, what is the story about 4KB disk sectors? Should such disks be avoided with ZFS? Or, no problem? Or, need to modify some config file before usage? -- This message posted from opensolaris.org

Hello zfs-discuss, When compression is set to on for a givef file system, then if block contains only 0s "nothing" is writen. I wonder if it 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? ? --

brtfs could be supported on Opensolaris, too. IMO it could even complement ZFS and spawn some concurrent development between both. ZFS is too high end and works very poorly with less than 2GB while brtfs reportedly works well with 128MB on ARM. Olga On Wed, Apr 14, 2010 at 5:31 PM, <Casper.Dik at sun.com> wrote: > > >>Just a completely different question...is there any plans

Hey all, Has anyone else noticed Norco''s recently-announced DS-520 and thought ZFS-ish thoughts? It''s a five-SATA, Celeron-based desktop NAS that ships without an OS. http://www.norcotek.com/item_detail.php?categoryid=8&modelno=ds-520 What practical impact is a 32-bit processor going to have on a ZFS system? (I know this relies on speculation, but) Might anyone know

I have a desktop system with 2 ZFS mirrors. One drive in one mirror is starting to produce read errors and slowing things down dramatically. I detached it and the system is running fine. I can''t tell which drive it is though! The error message and format command let me know which pair the bad drive is in, but I don''t know how to get any more info than that like the serial number

OK, I know that there''s been some discussion on this before, but I''m not sure that any specific advice came out of it. What would the advice be for supporting a largish number of users (10,000 say) on a system that supports ZFS? We currently use vxfs and assign a user quota, and backups are done via Legato Networker. >From what little I currently understand, the general

>> How do i compile mbuffer for our system, Thanks to Mike Futerko for help with the compile, i now have it installed OK. >> and what syntax to i use to invoke it within the zfs send recv? Still looking for answers to this one? Any example syntax, gotchas etc would be much appreciated. -- Kind regards, Jules free. open. honest. love. kindness. generosity. energy. frenetic.

Hi, I''m still debating wether I should use ZFS or not and how. Here is my scenario. I want to run a server with a lot of storage, that gets disks added/upgraded from time to time to expand space. I''d want to store large files on it, 15mb - 5gb per file, and they''d only need to be accessible via NFS/FTP and maybe CIFS. The machine I have dedicated for this job would be

hi all Try to learn how UFS root to ZFS root liveUG work. I download the vbox image of s10u8, it come up as UFS root. add a new disks (16GB) create zpool rpool run lucreate -n zfsroot -p rpool run luactivate zfsroot run lustatus it do show zfsroot will be active in next boot init 6 but it come up with UFS root, lustatus show ufsroot active zpool rpool is mounted but not used by boot Is this a

There is a Slashdot discussion today titled "Cambridge Researcher Breaks OpenBSD Systrace". Slashdot anonymous member has a comment "Even Sun''s Dtrace might be vulnerable." I don''t think it is. Comments? Exploiting Concurrency Vulnerabilities in System Call Wrappers http://www.watson.org/~robert/2007woot/2007usenixwoot-exploitingconcurrency.pdf Abstract

Hello ZFSland, Is there any significance in the fact that the bandwidth/read figures for a simple cpio into a ZFS filesystem should be multiples of 21.3K (when non-zero) as follows? What could determine this figure? Do I need to read a manpage? ;-) Thanks... Sean. ----- [root at global:/36g2] # zpool iostat 3 capacity operations bandwidth pool used avail read

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 ZFS Team, I have a couple of questions... Assume that the maximum slab size that ZFS supports is x. (I am assuming there is a maximum.) An application does a (single) write(2) for 2x bytes. Does ZFS/COW guarantee that either all the 2x bytes are persistent or none at all? Consider a case where there is a panic after x bytes has gone to disk and the change propagated to the uber block. Do

Banging my head against a Seagate 3TB USB3 drive. Its marketing name is: Seagate Expansion 3 TB USB 3.0 Desktop External Hard Drive STAY3000102 format(1M) shows it identify itself as: Seagate-External-SG11-2.73TB Under both Solaris 10 and Solaris 11x, I receive the evil message: | I/O request is not aligned with 4096 disk sector size. | It is handled through Read Modify Write but the performance

Setup: Osol.11 build 109 Athlon64 3400+ Aopen AK-86L mobo adeptec 1250sa Sata PCI controller card [re-posted from accidental post to osol `general'' group] I''m having trouble with an adaptec 1205sa (non-raid) SATA PCI card. It was all working fine when I plugged 2 used sata 200gb disks of a windows xp machine into it. Booted my osol server and added a zpool mirror using those

Can you use a different zvol for dump and swap rather than using the swap and dump zvol created by liveupgrade? Casper

Joerg.Schilling at fokus.fraunhofer.de wrote > Linux does not implement stable kernel interfaces. It may be that there is > an intention to do so but I''ve seen problems on Linux resulting from > self-incompatibility on a regular base. To be precise, Linus tries hard to prevent ABI changes in the system call interfaces exported from the kernel, but the glibc team had defeated