similar to: Feature Request for zfs pool/filesystem protection?

Displaying 20 results from an estimated 20000 matches similar to: "Feature Request for zfs pool/filesystem protection?"

2010 Jan 18
18
Is ZFS internal reservation excessive?
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 zpool and zfs report different free space because zfs takes into account an internal reservation of 32MB or 1/64 of the capacity of the pool, what is bigger. So in a 2TB Harddisk, the reservation would be 32 gigabytes. Seems a bit excessive to me... - -- Jesus Cea Avion _/_/ _/_/_/ _/_/_/ jcea at jcea.es -
2010 Dec 16
6
AHCI or IDE?
Hello All, I want to build a home file and media server now. After experiment with a Asus Board and running in unsolve problems I have bought this Supermicro Board X8SIA-F with Intel i3-560 and 8 GB Ram http://www.supermicro.com/products/motherboard/Xeon3000/3400/X8SIA.cfm?IPMI=Y also the LSI HBA SAS 9211-8i
2010 Mar 29
19
sharing a ssd between rpool and l2arc
Hi, as Richard Elling wrote earlier: "For more background, low-cost SSDs intended for the boot market are perfect candidates. Take a X-25V @ 40GB and use 15-20 GB for root and the rest for an L2ARC. For small form factor machines or machines with max capacity of 8GB of RAM (a typical home system) this can make a pleasant improvement over a HDD-only implementation." For the upcoming
2010 May 02
8
zpool mirror (dumb question)
Hi there! I am new to the list, and to OpenSolaris, as well as ZPS. I am creating a zpool/zfs to use on my NAS server, and basically I want some redundancy for my files/media. What I am looking to do, is get a bunch of 2TB drives, and mount them mirrored, and in a zpool so that I don''t have to worry about running out of room. (I know, pretty typical I guess). My problem is, is that
2009 Mar 28
53
Can this be done?
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
2006 May 16
8
ZFS recovery from a disk losing power
running b37 on amd64. after removing power from a disk configured as a mirror, 10 minutes has passed and ZFS has still not offlined it. # zpool status tank pool: tank state: ONLINE status: One or more devices has experienced an unrecoverable error. An attempt was made to correct the error. Applications are unaffected. action: Determine if the device needs to be replaced, and clear
2010 Dec 17
6
copy complete zpool via zfs send/recv
Hi, I want to move all the ZFS fs from one pool to another, but I don''t want to "gain" an extra level in the folder structure on the target pool. On the source zpool I used zfs snapshot -r tank at moveTank on the root fs and I got a new snapshot in all sub fs, as expected. Now, I want to use zfs send -R tank at moveTank | zfs recv targetTank/... which would place all zfs fs
2007 Aug 30
15
ZFS, XFS, and EXT4 compared
I have a lot of people whispering "zfs" in my virtual ear these days, and at the same time I have an irrational attachment to xfs based entirely on its lack of the 32000 subdirectory limit. I''m not afraid of ext4''s newness, since really a lot of that stuff has been in Lustre for years. So a-benchmarking I went. Results at the bottom:
2007 Apr 10
15
Poor man''s backup by attaching/detaching mirror drives on a _striped_ pool?
Hi, one quick&dirty way of backing up a pool that is a mirror of two devices is to zpool attach a third one, wait for the resilvering to finish, then zpool detach it again. The third device then can be used as a poor man''s simple backup. Has anybody tried it yet with a striped mirror? What if the pool is composed out of two mirrors? Can I attach devices to both mirrors, let them
2007 Jun 17
18
6 disk raidz2 or 3 stripe 2 way mirror
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
2009 Oct 14
14
ZFS disk failure question
So, my Areca controller has been complaining via email of read errors for a couple days on SATA channel 8. The disk finally gave up last night at 17:40. I got to say I really appreciate the Areca controller taking such good care of me. For some reason, I wasn''t able to log into the server last night or in the morning, probably because my home dir was on the zpool with the failed disk
2010 Apr 26
23
SAS vs SATA: Same size, same speed, why SAS?
I''m building another 24-bay rackmount storage server, and I''m considering what drives to put in the bays. My chassis is a Supermicro SC846A, so the backplane supports SAS or SATA; my controllers are LSI3081E, again supporting SAS or SATA. Looking at drives, Seagate offers an enterprise (Constellation) 2TB 7200RPM drive in both SAS and SATA configurations; the SAS model offers
2006 Oct 18
5
ZFS and IBM sdd (vpath)
Hello, I am trying to configure ZFS with IBM sdd. IBM sdd is like powerpath, MPXIO or VxDMP. Here is the error message when I try to create my pool: bash-3.00# zpool create tank /dev/dsk/vpath1a warning: device in use checking failed: No such device internal error: unexpected error 22 at line 446 of ../common/libzfs_pool.c bash-3.00# zpool create tank /dev/dsk/vpath1c cannot open
2010 Sep 20
5
create mirror copy of existing zfs stack
Hi, I have a mirror pool tank having two devices underneath. Created in this way #zpool create tank mirror c3t500507630E020CEAd1 c3t500507630E020CEAd0 Created file system tank/home #zfs create tank/home Created another file system tank/home #zfs create tank/home/sridhar After that I have created files and directories under tank/home and tank/home/sridhar. Now I detached 2nd device i.e
2008 Apr 11
1
zfs concatenation to mirror
Hi, Is it possible to convert a zfs pool from a concatenation of 2 disks to a 2 way mirror without backing up the data, re-creating the pool and restoring it. i.e diskA,diskB ----> mirror(diskA,diskB) Thanks, Jeff
2009 Oct 01
4
RAIDZ v. RAIDZ1
So, I took four 1.5TB drives and made RAIDZ, RAIDZ1 and RAIDZ2 pools. The sizes for the pools were 5.3TB, 4.0TB, and 2.67TB respectively. The man page for RAIDZ states that "The raidz vdev type is an alias for raidz1." So why was there a difference between the sizes for RAIDZ and RAIDZ1? Shouldn''t the size be the same for "zpool create raidz ..." and "zpool
2010 Dec 18
10
a single nfs file system shared out twice with different permissions
I am trying to configure a system where I have two different NFS shares which point to the same directory. The idea is if you come in via one path, you will have read-only access and can''t delete any files, if you come in the 2nd path, then you will have read/write access. For example, create the read/write nfs share: zfs create tank/snapshots zfs set sharenfs=on tank/snapshots root
2007 Apr 10
3
Renaming a pool?
Hi all, I have a pool called tank/home/foo and I want to rename it to tank/home/bar. What''s the best way to do this (the zfs and zpool man pages don''t have a "rename" option)? One way I can think of is to create a clone of tank/home/foo called tank/home/bar, and then destroy the former. Is that the best (or even only) way? TIA, -- Rich Teer, SCSA, SCNA, SCSECA,
2009 Dec 03
5
L2ARC in clusters
Hi, When deploying ZFS in cluster environment it would be nice to be able to have some SSDs as local drives (not on SAN) and when pool switches over to the other node zfs would pick up the node''s local disk drives as L2ARC. To better clarify what I mean lets assume there is a 2-node cluster with 1sx 2540 disk array. Now lets put 4x SSDs in each node (as internal/local drives). Now
2007 Oct 18
2
GRUB + zpool version mismatches
Apparently with zfs boot, if the zpool is a version grub doesn''t recognize, it merely ignores any zfs entries in menu.lst, and apparently instead boots the first entry it thinks it can boot. I ran into this myself due to some boneheaded mistakes while doing a very manual zfs / install at the summit. Shouldn''t it at least spit out a warning? If so, I have no issues filing a