similar to: recommended memory for zfs

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

Hi: Where can I find a list of properties (-o/-O property=value) for creating a zpool? I meant something like: #zpool create \ -o ashift=12 \ -0 dedup=off -O autoexpand=off -O atime=off \ -O canmount=off \ -O compression=lz4 \ -O normalization=formD \ -O mountpoint=/jail \ tank \ mirror \ /dev/gptid/diskname0 \ /dev/gptid/diskname1 \

hi, i have raid1 on zfs with 2 device on pool first device died and boot from second not working... i try to get http://mfsbsd.vx.sk/ flash and load from it with zpool import http://puu.sh/2402E when i load zfs.ko and opensolaris.ko i see this message: Solaris: WARNING: Can''t open objset for zroot/var/crash Solaris: WARNING: Can''t open objset for zroot/var/crash zpool status:

Followed the instructions here: http://www.freebsd.org/doc/handbook/updating-upgrading-freebsdupdate.html The upgrade borked. Error message: Can't find 'kernel' When I checked with ls /boot/kernel/, the directory does exist. :-( Since the system has encrypted root partion with ZFSonROOT, I tried to follow instructions at https://forums.freebsd.org/viewtopic.php?&t=8958 to boot

I had to let this go and get on with testing DB2 on Solaris. I had to abandon zfs on local discs in x64 Solaris 10 5/08. The situation was that: * DB2 buffer pools occupied up to 90% of 32GB RAM on each host * DB2 cached the entire database in its buffer pools o having the file system repeat this was not helpful * running high-load DB2 tests for 2 weeks showed 100%

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 Folks.. I have a system that was inadvertently left unmirrored for root. We were able to add a mirror disk, resilver, and fix the corrupted files (nothing very interesting was corrupt, whew), but zpool status -v still shows errors.. Will this self correct when we replace the degraded disk and resilver? Or is there something else that I''m not finding that I need to do to clean up?

Good morning, I have a problem with ZFS: ZFS filesystem version 4 ZFS storage pool version 15 Yesterday my comp with Freebsd 8.2 releng shutdown with ad4 error detached,when I copy a big file... and after reboot in 2 wd green 1tb say me goodbye. One of them die and other with zfs errors: Apr 24 04:53:41 Flash root: ZFS: vdev I/O failure, zpool=zroot path= offset=187921768448 size=512 error=6

Hi, I am running CentOS Linux release 7.8.2003 (Core) with php72u-fpm-7.2.30-1.el7.ius.x86_64 version. I am facing the below permission denied issue. I also did the below steps #cd /run #chown -Rc nginx.nginx php-fpm changed ownership of ?php-fpm/php-fpm.pid? from root:root to nginx:nginx changed ownership of ?php-fpm? from root:root to nginx:nginx #systemctl restart php-fpm again changes it from

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 had a sparc64 (Netra X1) running a stable/9 from late March 2013. Actually, the kernel may've been a bit newer than that as I was working with folks to diagnose and repair some Netra-X1 specific issues. But, ZFS worked fine. I have two pools, zroot as a RAID1 (using equally sized partitions at the front of two large disks), and a zdata that is a large pool of the remaining space of both

Hi, I was trying to rebuild world on a FreeBSD 10 test system, that I had just installed. ZFS root was setup. I let the installation program do all the ZFS setup and configuration. I put root on a 5 disk encrypted raidz array. Besides the installer configuring 5 times the amount of swap space I asked for (asked for 8gb, installer put 8gb on each drive, for 40gb in total.) everything was working

-------- Original Message -------- Subject: Re: Dovecot 2.2.16: disappearing messages, mismatched summaries, duplicated messages, excessive full re-downloads From: Timo Sirainen <tss at iki.fi> To: David Gessel <gessel at blackrosetech.com> Date: Thu Apr 16 2015 21:31:30 GMT+0300 (Arabic Standard Time) > On 16 Apr 2015, at 04:45, David Gessel <gessel at blackrosetech.com>

Hi, I've got a problem with booting zfs-on-root FreeBSD 9.2-PRERELEASE. I'm getting: ZFS: i/o error - all block copies unavailable ZFS: can't read MOS of pool klawisz gptzfsboot: failed to mount default pool klawisz Machine is VM running under KVM on Proxmox 2.3-13. VM has 8 GB of RAM, 400 GB of local storage with SCSI Controller type: Default (lsi). I'm not sure what I did to

Hi, what is the workaround for this? https://www.nginx.com/blog/php-fpm-cve-2019-11043-vulnerability-nginx/ in either CentOS 7 or 8 ? thanks --- Thomas Stephen Lee

Edgar, thanks for the help! -------- Original Message -------- Subject: Re: Dovecot 2.2.16: disappearing messages, mismatched summaries, duplicated messages, excessive full re-downloads From: Edgar Pettijohn III <edgar at pettijohn-web.com> To: David Gessel <gessel at blackrosetech.com> Date: Sat Apr 18 2015 16:30:07 GMT+0300 (Arabic Standard Time) > > On Apr 18, 2015, at 8:00

I have samba 4.3 running on FreeBSD 10.2 on ZFS and I am unable to create new GPOs, getting "invalid Parameter" response.Log files indicate ACL issues. Domain was provisioned with --use-ntvfs option.Filesystem is mounted with this options:zroot/ROOT/default on / (zfs, local, noatime, nfsv4acls) acl options on zfs are this:zroot/ROOT/default aclmode passthrough inherited from

Hi Marius, Will make the changes and see how it goes. On the other hand https://cbs.centos.org/koji/buildinfo?buildID=27138 if the above was released we could just install and migrate to rh-php73-php, which is not affected as per https://access.redhat.com/security/cve/cve-2019-11043 thanks --- Thomas Stephen Lee On Thu, Oct 31, 2019 at 8:40 PM Marius ROMAN <marius at roman.systems>

Hi, could anyone give recommendations (or share experience) regarding using ZFS: - FreeBSD 7-Stable (amd64 with 8GB RAM) + special tuning necessary (apart from increasing kernel memory to 1 or more GB for ZFS) - Samba 3.2 + ACLs possible directly under ZFS? + recommended compile options? - NFS - email (imap) - jails (I have seen some problems exist with using snaphots within

Hi. I''m all set for doing performance comparsion between Solaris/ZFS and FreeBSD/ZFS. I spend last few weeks on FreeBSD/ZFS optimizations and I think I''m ready. The machine is 1xQuad-core DELL PowerEdge 1950, 2GB RAM, 15 x 74GB-FC-10K accesses via 2x2Gbit FC links. Unfortunately the links to disks are the bottleneck, so I''m going to use not more than 4 disks, probably.