similar to: Raid-Z expansion

I skimmed the archives and found a thread from July earlier this year about RAIDZ expansion. Not adding more RAIDZ stripes to a pool, but adding more drives to the stripe itself. I''m wondering if an RFE has been submitted for this and if any progress has been made, or is expected? I find myself out of space on my current RAID5 setup and would love to flip over to a ZFS raidz2 solution

Hi Is it possible to convert live 3 disks zpool from raidz to raidz2 And is it possible to add 1 new disk to raidz configuration without backups and recreating zpool from cratch. Thanks This message posted from opensolaris.org

Hi, for zfs raidz1, I know for random io, iops of a raidz1 vdev eqaul to one physical disk iops, since raidz1 is like raid5 , so is raid5 has same performance like raidz1? ie. random iops equal to one physical disk''s ipos. Regards Victor -- This message posted from opensolaris.org

After reading the ZFS docs it does appear that RAID-Z can be used on a two-disk system and I was wondering if the system would [i]basically [/i]work as Intel''s Matrix RAID for two disks? [u] Intel Matrix RAID info:[/u] http://www.intel.com/design/chipsets/matrixstorage_sb.htm http://techreport.com/reviews/2005q1/matrix-raid/index.x?pg=1 My focus with this thread is some

I?ve spend a few hours reading through the forums and wiki and honestly my head is spinning. I have been trying to study up on either buying or building a box that would allow me to add drives of varying sizes/speeds/brands (adding more later etc) and still be able to use the full space of drives (minus parity? [not sure if I got the terminology right]) with redundancy. I have found the ?all in

I have a 5-500GB disk Raid-Z pool that has been producing checksum errors right after upgrading SXCE to build 121. They seem to be randomly occurring on all 5 disks, so it doesn''t look like a disk failure situation. Repeatingly running a scrub on the pools randomly repairs between 20 and a few hundred checksum errors. Since I hadn''t physically touched the machine, it seems a

Hi All, I am looking at ZFS and I get that they call it RAIDZ which is similar to RAID 5, but what about RAID 10? Isn''t a RAID 10 setup better for data protection? So if I have 8 x 1.5tb drives, wouldn''t I: - mirror drive 1 and 5 - mirror drive 2 and 6 - mirror drive 3 and 7 - mirror drive 4 and 8 Then stripe 1,2,3,4 Then stripe 5,6,7,8 How does one do this with ZFS?

I''ve got 12Gb or so of db+web in a zone on a ZFS filesystem on a mirrored zpool. Noticed during some performance testing today that its i/o bound but using hardly any CPU, so I thought turning on compression would be a quick win. I know I''ll have to copy files for existing data to be compressed, so I was going to make a new filesystem, enable compression and rysnc everything in,

Rick McNeal and I have been working on building support for sharing ZVOLs as iSCSI targets directly into ZFS. Below is the proposal I''ll be submitting to PSARC. Comments and suggestions are welcome. Adam ---8<--- iSCSI/ZFS Integration A. Overview The goal of this project is to couple ZFS with the iSCSI target in Solaris specifically to make it as easy to create and export ZVOLs

Given a 1.6TB ZFS Z-Raid consisting 6 disks: And a system that does an extreme amount of small /(<20K) /random reads /(more than twice as many reads as writes) / 1) What performance gains, if any does Z-Raid offer over other RAID or Large filesystem configurations? 2) What is any hindrance is Z-Raid to this configuration, given the complete randomness and size of these accesses? Would

Hi, Created a zpool with 64k recordsize and enabled dedupe on it. zpool create -O recordsize=64k TestPool device1 zfs set dedup=on TestPool I copied files onto this pool over nfs from a windows client. Here is the output of zpool list Prompt:~# zpool list NAME SIZE ALLOC FREE CAP DEDUP HEALTH ALTROOT TestPool 696G 19.1G 677G 2% 1.13x ONLINE - When I ran a

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 all, (down to the wire here on EDU grant pricing :) i''m looking at buying a pair of 7110''s in the EDU grant sale. The price is sure right. I''d use them in a mirrored, cold-failover config. I''d primarily be using them to serve a vmware cluster; the current config is two standalone ESX servers with local storage, 450G of SAS RAID10 each. the 7110 price

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 currently have a 7x1.5tb raidz1. I want to add "phase 2" which is another 7x1.5tb raidz1 Can I add the second phase to the first phase and basically have two raid5''s striped (in raid terms?) Yes, I probably should upgrade the zpool format too. Currently running snv_104. Also should upgrade to 110. If that is possible, would anyone happen to have the simple command lines to

hi there, since i am really new to zfs, i got 2 important questions for starting. i got a nas up and running zfs in stripe mode with 2x 1,5tb hdd. my question for future proof would be, if i could add just another drive to the pool and zfs can integrate it flawlessly? and second if this hdd could also be another size than 1,5tb? so could i put in 2tb also and integrate it? thanks in advance

I have zpool like that pool: tank state: ONLINE scrub: none requested config: NAME STATE READ WRITE CKSUM tank ONLINE 0 0 0 raidz3-0 ONLINE 0 0 0 ___c6t0d0 ONLINE 0 0 0 ___c6t1d0 ONLINE 0 0 0 ___c6t2d0 ONLINE 0 0 0 ___c6t3d0 ONLINE 0 0 0 ___c6t4d0 ONLINE

"Does raidzN actually protect against bitrot?" That''s a kind of radical, possibly offensive, question formula that I have lately. Reading up on theory of RAID5, I grasped the idea of the write hole (where one of the sectors of the stripe, such as the parity data, doesn''t get written - leading to invalid data upon read). In general, I think the same applies to bitrot of

Hello, i have an 8 port sata-controller and i don''t want to spend the money for 8 x 750 GB Sata Disks right now. I''m thinking about an optimal way of building a growing raidz-pool without loosing any data. As far as i know there are two ways to achieve this: - Adding 750 GB Disks from time to time. But this would lead to multiple groups with multiple redundancy/parity disks. I

Hi, i''m new to the list so please bare with me. This isn''t an OpenSolaris related problem but i hope it''s still the right list to post to. I''m on the way to move a backup server to using zfs based storage, but i don''t want to spend too much drives to parity (the 16 drives are attached to a 3ware raid controller so i could also just use raid6 there). I