similar to: Terrible performance when setting zfs_arc_max snv_98

Hello, Im about to migrate a 6Tb database from Veritas Volume Manager to ZFS, I want to set arc_max parameter so ZFS cant use all my system''s memory, but i dont know how much i should set, do you think 24Gb will be enough for a 6Tb database? obviously the more the better but i cant set too much memory. Have someone implemented succesfully something similar? We ran some test and the

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Hi all, I have exchanged my Dell R610 in favor of a Sun Fire 4170 M2 which has 32 GB RAM installed. I am running Sol11Expr on this host and I use it to primarily serve Netatalk AFP shares. From day one, I have noticed that the amount of free RAM decereased and along with that decrease the overall performance of ZFS decreased as well. Now, since I am still quite a Solaris newbie, I seem to

Hi All, I am running nevada 79 BFU''ed to 82. The machine is a Ultra 20 with 4GB memory. I have several Windows XP domU''s configured and registered. When ever I try to start the fourth domain I get an out of memory exception: Not enough memory is available, and dom0 cannot be shrunk any further Each of my domains only uses 256 so I thought there would be sufficient memory

I''m new so opensolaris and very new to ZFS. In the past we have always used linux for our database backends. So now we are looking for a new database server to give us a big performance boost, and also the possibility for scalability. Our current database consists mainly of a huge table containing about 230 million records and a few (relatively) smaller tables (something like 13 million

Hello, I read, and know, that ZFS + XEN are not works well together. (I''ve only 512MB for Dom0). How I can disable/off all ZFS stuff to have more usable memory to Dom0. Regards Maciej

Running an mmap-intensive workload on ZFS on a X4500, Solaris 10 11/06 (update 3). All file IO is mmap(file), read memory segment, unmap, close. Tweaked the arc size down via mdb to 1GB. I used that value because c_min was also 1GB, and I was not sure if c_max could be larger than c_min....Anyway, I set c_max to 1GB. After a workload run....: > arc::print -tad { . . . ffffffffc02e29e8

> http://blogs.sun.com/ptelles/entry/sun_xvm_hypervisor_ > part_i Hello, I can''t get this to work. My pc just reboots after "Syncing filesystem" when I try to boot into xVM Hypervisor. I have a clean install of OpenSolaris 2008.11. -- This message posted from opensolaris.org

I have a xVm b75 server and use zfs for storage (zfs root mirror and a raid-z2 datapool.) I see everywhere that it is recommended to have a lot of memory on a zfs file server... but I also need to relinquish a lot of my memory to be used by the domUs. What would a good value for dom0_mem on a box with 4 gig of ram?

I have a xVm b75 server and use zfs for storage (zfs root mirror and a raid-z2 datapool.) I see everywhere that it is recommended to have a lot of memory on a zfs file server... but I also need to relinquish a lot of my memory to be used by the domUs. What would a good value for dom0_mem on a box with 4 gig of ram?

Whats the default size of the file system cache for Solaris 10 x86 and can it be tuned? I read various posts on the subject and its confusing.. -- This message posted from opensolaris.org

Would someone "in the know" be willing to write up (preferably blog) definitive definitions/explanations of all the arcstats provided via kstat? I''m struggling with proper interpretation of certain values, namely "p", "memory_throttle_count", and the mru/mfu+ghost hit vs demand/prefetch hit counters. I think I''ve got it figured out, but

May be someone could point me to optimal xm configuration file setting for Dell Power Edge 2950,2G RAM,One Quad CPU 2.0Ghz I need to run SBS 2003 Windows Server as a guest. I already installed it,but it appears very slow.... I mean may be there are some special good practices for low RAM machines. Thanks a lot. -- This message posted from opensolaris.org

I have uploaded a current source drop from the qemu subversion repository, to the download area. Additionally, there is a new Kernel kqemu module that will allow a 32-bit guest to run on a 64-bit host. The current source base uses a different code generator from the orignial Dyngen one. The new one is called "TCG" for "The Code Generator" and is supposed to fix the

Hello All, Awhile back (Feb ''07) when we noticed ZFS was hogging all the memory on the system, y''all were kind enough to help us use the arc_max tunable to attempt to limit that usage to a hard value. Unfortunately, at the time a sticky problem was that the hard limit did not include DNLC entries generated by ZFS. I''ve been watching the list since then and trying to

I gave the AMD64 version of 7.2 RC2 a spin and all installed as expected off the dvd INTEL S3200SHV MB, Core2Duo, 4G of RAM In the past it had been suggested that for zfs tuning, something like vm.kmem_size_max="1073741824" vm.kmem_size="1073741824" vfs.zfs.prefetch_disable=1 However doing a simple test with bonnie and dd, there does not seem to be very much difference in

Hi, I updated my installation to snv_105 from pkg.opensolaris.org/dev. Booting xvm kernel doesn''t work. The last working xvm version that I tested was on snv_98. I filed a bug report earlier on http://defect.opensolaris.org/bz/show_bug.cgi?id=5905 Is anyone using xmv on opensolaris 2008.11 (stable or dev)? Is it suppose to work, or is it one of those

Hello, I have the following problem, that all my programs take a really long time before they are finally started (minutes). I don't know what I'v changed in my system configuration to cause this behaviour, it worked fine a few days ago. Can I enable some debug messages to see where wine spends the time?

i'm getting a tick every second or so on all my calls. All channels are zap channels. Does anyone know how to fix this? Thanks! Paul Paul Mahler pmahler@signate.com <mailto:pmahler@signate.com> <http://www.signate.com/> Signate, LLC PO Box 60430 Palo Alto, CA 94306 VoIP Systems, Training & Consulting

Had an appointment for these schmoes to come out and install another line. Was supposed to be 8-12. Its now 6PM and not even call. Missed 3 sales calls waiting on these jerks. No wonder customers were jumping ship to Vonage. -- Warm Regards, Lee