similar to: Clarifications wanted for ZFS spec

Hello all, I found this dialog on the zfs-devel at zfsonlinux.org list, and I''d like someone to confirm-or-reject the discussed statement. Paraphrasing in my words and understanding: "Labels, including Uberblock rings, are fixed 256KB in size each, of which 128KB is the UB ring. Normally there is 1KB of data in one UB, which gives 128 TXGs to rollback to. When ashift=12 is

2. update ZFS in libfsimage from illumos for pygrub diff -r 7c12aaa128e3 -r c2e11847cac0 tools/libfsimage/Rules.mk --- a/tools/libfsimage/Rules.mk Thu Oct 24 22:46:20 2013 +0100 +++ b/tools/libfsimage/Rules.mk Sat Oct 26 20:03:06 2013 +0400 @@ -2,11 +2,19 @@ include $(XEN_ROOT)/tools/Rules.mk CFLAGS += -Wno-unknown-pragmas -I$(XEN_ROOT)/tools/libfsimage/common/

Hello, I''ve been using Nexentastore Community Edition with no issues now for a while now, however last week I was going to rebuild a different system so I started to copy all the data off that to my to a raidz2 volume on me CE system. This was going fine until I noticed that they copy was stalled, as well as the entire system was non-responsive. I let it sit for several hours with no

Hello, I have a dual boot with Windows 7 64 bit enterprise edition and Opensolaris build 134. This is on Sun Ultra 40 M1 workstation. Three hard drives, 2 in ZFS mirror, 1 is shared with Windows. Last 2 days I was working in Windows. I didn''t touch the hard drives in any way except I once opened Disk Management to figure out why a external USB hard drive is not being listed.

We are currently experiencing a very huge perfomance drop on our zfs storage server. We have 2 pools, pool 1 stor is a raidz out of 7 iscsi nodes, home is a local mirror pool. Recently we had some issues with one of the storagenodes, because of that the pool was degraded. Since we did not succeed in bringing this storagenode back online (on zfs level) we upgraded our nashead from opensolaris b57

Hello all, I am not sure my original mail got through to the list (I haven''t received it back), so I attach it below. Anyhow, now I have a saved kernel crash dump of the system panicking when it tries to - I believe - deferred-release the corrupted deduped blocks which are no longer referenced by the userdata/blockpointer tree. As I previously wrote in my thread on unfixeable

I''m not sure if this alias is only to discuss the Solaris ZFS implementation or others. I''m writing my own ZFS code from scratch in Java. I''ll skip the reasons why I''m doing this in Java, lets just assume I have some. Is there any good documentation on the disk label structures? Right now my code is just reading the ZFS labels and the nvlist data but when

I have a ZFS pool that has been corrupted. The pool contains a single device which was actually a file on UFS. The machine was accidentally halted and now the pool is corrupt. There are (of course) no backups and I''ve been asked to recover the pool. The system panics when trying to do anything with the pool. root@:/$ zpool status panic[cpu1]/thread=fffffe8000758c80: assertion failed:

Hi, Yesterday I got all my disks in two zpool disconected. They are not real disks - LUNS from StorageTek 2530 array. What could that be - a failing LSI card or a mpt driver in 2009.06? After reboot got four disks in FAILED state - zpool clear fixed things with resilvering. Here is how it started (/var/adm/messages) Feb 23 12:39:03 nexus scsi: [ID 365881 kern.info] /pci at 0,0/pci10de,5d at

Hello all, I have an oi_148a PC with a single root disk, and since recently it fails to boot - hangs after the copyright message whenever I use any of my GRUB menu options. Booting with an oi_148a LiveUSB I had around since installation, I ran some zdb traversals over the rpool and zpool import attempts. The imports fail by running the kernel out of RAM (as recently discussed in the list with

I made a bad judgment and now my raidz pool is corrupted. I have a raidz pool running on Opensolaris b85. I wanted to try out freenas 0.7 and tried to add my pool to freenas. After adding the zfs disk, vdev and pool. I decided to back out and went back to opensolaris. Now my raidz pool will not mount and got the following errors. Hope someone expert can help me recover from this error.

I sent a zvol from host a, to host b, twice. Host b has two pools, one ashift=9, one ashift=12. I sent the zvol to each of the pools on b. The original source pool is ashift=9, and an old revision (2009_06 because it''s still running xen). I sent it twice, because something strange happened on the first send, to the ashift=12 pool. "zfs list -o space" showed figures at

Hi Derek, Here''s the latest email I''ve received from the zfs-discuss alias. ------------- Begin Forwarded Message ------------- Date: Mon, 18 Sep 2006 23:55:27 -0400 From: Jonathan Edwards <Jonathan.Edwards@sun.com> Subject: Re: [zfs-discuss] ZFS and HDS ShadowImage To: Eric Schrock <eric.schrock@sun.com> Cc: zfs-discuss@opensolaris.org, Torrey McMahon

I had a single spare 500GB HDD and I decided to install a FreeBSD file server in it for learning purposes, and I moved almost all of my data to it. Yesterday, and naturally after no longer having backups of the data in the server, I had a controller failure (SiS 180 (oh, the quality)) and the HDD was considered unplugged. When I noticed a few checksum failures on `zfs status` (including two on

After multiple power outages caused by storms coming through, I can no longer access /dev/zvol/dsk/poolname, which are hold l2arc and slog devices in another pool I don''t think this is related, since I the pools are ofline pending access to the volumes. I tried running find /dev/zvol/dsk/poolname -type f and here is the stack, hopefully this someone a hint at what the issue is, I have

One of our Solaris 10 update 3 servers paniced today with the following error: Sep 18 00:34:53 m2000ef savecore: [ID 570001 auth.error] reboot after panic: assertion failed: ss != NULL, file: ../../common/fs/zfs/space_map.c, line: 125 The server saved a core file, and the resulting backtrace is listed below: $ mdb unix.0 vmcore.0 > $c vpanic() 0xfffffffffb9b49f3() space_map_remove+0x239()

Hello, Daniel, Apparently your data is represented by rather small files (thus many small data blocks), so proportion of metadata is relatively high, and your<4k blocks are now using at least 4k disk space. For data with small blocks (a 4k volume on an ashift=12 pool) I saw metadata use up most of my drive - becoming equal to data size. Just for the sake of completeness, I brought up a

Hi, all, I think I''m missing a concept with import and export. I''m working on installing a Nexenta b134 system under Xen, and I have to run the installer under hvm mode, then I''m trying to get it back up under pv mode. In that process the controller names change, and that''s where I''m getting tripped up. I do a successful install, then I boot OK,

zdb -C shows an shift value on each vdev in my pool, I was just wondering if it is vdev specific, or pool wide. Google didn''t seem to know. I''m considering a mixed pool with some "advanced format" (4KB sector) drives, and some normal 512B sector drives, and was wondering if the ashift can be set per vdev, or only per pool. Theoretically, this would save me some size on

Hello, I am a final year computer engg student and I am planning to implement zfs on linux, I have gone through the articles posted on solaris . Please let me know about the feasibility of zfs to be implemented on linux. waiting for valuable replies. thanks in advance. On 9/14/07, zfs-discuss-request at opensolaris.org <zfs-discuss-request at opensolaris.org> wrote: > Send