similar to: raidz2 resilience on 3 disks

Hi guys, I am about to reshape my data spool and am wondering what performance diff. I can expect from the new config. Vs. The old. The old config. Is a pool of a single vdev of 8 disks raidz2. The new pool config is 2vdev''s of 7 disk raidz2 in a single pool. I understand it should be better with higher io throughput....and better read/write rates...but interested to hear the science

Hello, I am new to open solaris and am trying to setup a ZFS based storage solution. I am looking at setting up a system with the following specs: Intel BOXDG33FBC Intel Core 2 Duo 2.66Ghz 2 or 4 GB ram For the drives I am looking at using a LSI SAS3081E-R I''ve been reading around and it sounds like LSI solutions work well in terms of compatability with solaris. Could someone help

I created snapshot for my whole zpool (zfs version 3): zfs snapshot -r tank@`date +%F_%T` then trid to send it to the remote host: zfs send tank at 2008-07-25_09:31:03 | ssh user at 10.0.1.14 -i identitykey ''zfs receive tank/tankbackup'' but got the error "zfs: command not found" since user is not superuser, even though it is in the root group. I found

I''d like to replace/upgrade two 500GB disks in RaidZ2 vdev with 1TB disks, but I have some preliminary questions/concerns before trying ''zfs replace dpool ?'' Will ZFS permit this replacement? Will ZFS use the extra space in a heterogeneous RaidZ2 vdev, or is the size limited by the smallest disk in the vdev? Thanks in advance, Vizzini The system is currently running

Already making use of it, thank you! http://www.justinconover.com/blog/?p=17 I took 6x250gb disk and tried raidz2/raidz/none # zpool create zfs raidz2 c0d0 c1d0 c2d0 c3d0 c7d0 c8d0 df -h zfs Filesystem size used avail capacity Mounted on zfs 915G 49K 915G 1% /zfs # zpool destroy -f zfs Plain old raidz (raid-5ish) # zpool create zfs raidz c0d0

Will it be possible to update an existing raidz to a raidz2? I wouldn''t think so, but maybe I''ll be pleasantly surprised. -frank

I''m playing around with ZFS and want to figure out the best use of my 6x 300GB SATA drives. The purpose of the drives is to store all of my data at home (video, photos, music, etc). I''m debating between: 6x 300GB disks in a single raidz2 pool --or-- 2x (3x 300GB disks in a pool) mirrored I''ve read up a lot on ZFS, but I can''t really figure out which is

I have a customer who has implemented the following layout: As you can see, he has mostly raidz zvols but has one raidz2 in the same zpool. What are the implications here? Is this a bad thing to do? Please elaborate. Thanks, Scott Gaspard Scott.J.Gaspard at Sun.COM > NAME STATE READ WRITE CKSUM > > chipool1 ONLINE 0 0 0 > >

I currently am getting good speeds out of my existing system (8x 2TB in a RAIDZ2 exported over fibre channel) but there''s no such thing as too much speed, and these other two drive bays are just begging for drives in them.... If I go to 10x 2TB in a RAIDZ3, will the extra spindles increase speed, or will the extra parity writes reduce speed, or will the two factors offset and leave things

I am in the middle of converting a FreeBSD 8.0-Release system to OpenSolaris b130 In order to import my stuff, the only way i knew to make it work (from testing in virtualbox) was to do this: label a bunch of drives with an EFI label by using the opensolaris live cd, then use those drives in FreeBSD to create a zpool. This worked fine. (though i did get a warning in freebsd about GPT

Had an idea, could someone please tell me why it''s wrong? (I feel like it has to be). A RaidZ-2 pool with one missing disk offers the same failure resilience as a healthy RaidZ1 pool (no data loss when one disk fails). I had initially wanted to do single parity raidz pool (5disk), but after a recent scare decided raidz2 was the way to go. With the help of a sparse file

Why does zfs define raidz/raidz2/mirror/stripe at the pool level instead of the filesystem/volume level? A sample use case: two filesystems in a eight disk pool. The first filesystems is a stripe across four mirrors. The second filesystems is a raidz2. Both utilizing the free space in the 8 disk pool as needed. Thanks in advance... This message posted from opensolaris.org

Hi Dovecot team, I need help in configuring HA/resilence for my dovecot (POP3/IMAP) server. I have one RHEL Linux POP3/IMAP server with Dovecot version 2.2.10. I also installed the postfix(version: 2.6.6) in it. At present it have around 10 domains and each domain is having around 20 email boxes. It has very simple configuration. User's reading the email via some internal

Thank you Aki for the reply. But I cannot disturb the version at present as it is a live server and thousands of emails will circulate every hour. Could you please suggest me how to create HA/resilience for the existing environment. I have another server ready with the similar configuration. Please provide any steps/link for me to proceed on this? It will be a great help to me. Thanks, Kishore

On Fri, Jan 10, 2020 at 09:07:24AM +0200, Aki Tuomi wrote: > Replication is not supported with mbox. Most features are not. It would be nice if the document about replication could tell what setup works. -- Emmanuel Dreyfus manu at netbsd.org

Thank you all for the replies.... I have the test environment with the same configuration. But I have been asked to go with same environment for HA/Resilience in Live. Yes, I have only one Live server. It is configured in "Maildir" format. The data stores on a Network / Shared Storage (But definitely not local disk, its a mount point). I have been asked to create a HA/Resilience for

Hello list, Excuse me for my poor english. I have updated on a test server dovecot 2.0.13 to dovecot 2.1.1. All works fine, but with the new version it seems that dovecot don't do hardlinks when deliver a message to multiple users. I have checked my config and the only rule I can see aboout that is maildir_copy_with_hardlinks = yes in /etc/dovecot/conf.d/10-mail.conf My mail location

Hi. If I create a zpool with the following command: zpool create tank raidz2 da0 da1 da2 da3 da4 da5 da6 da7 and after a reboot the device names for some reason are changed so da2 and da5 are swapped, either by altering the LUN setting on the storage or by switching cables/swapping disks etc.? How will zfs handle that? Will it simply acknowledge that all devices are present and the pool is

Hi, I am using theora codec to stream video. Sometimes I am getting (due network actions- packet loss / delay) a distortion in the video image degrading its quality and I think it is something related to the video slices / chunks (dropped or disordered) of the entire frame. Are there plans for slicing and loss detection/resilience built-in theora codec? Will theora codec have a similar approach

Hi, We're testing CELT (version 0.7.1) error resilience capability. We've used already celtdec packet-loss options. Hence we know what to expect in case of whole packet loss. How does Celt respond to a broken encoded packet? Is it always better to discard it and decode the missing frame through decode_lost? We have the hardware capability of protecting the frame with multiple CRCs.