similar to: ZFS and HDS ShadowImage

I''m reading the "ZFS On-disk Format" PDF (dated 2006 - are there newer releases?), and have some questions regarding whether it is outdated: 1) On page 16 it has the following phrase (which I think is in general invalid): The value stored in offset is the offset in terms of sectors (512 byte blocks). To find the physical block byte offset from the beginning of a slice,

I have Storage-SAN of HDS(AMS500), and I want to do striping on luns from the storage. I don''t want any raid-5(because I have one on the disks in the HDS storage). I only want to do strip on 2 luns(25GB each) that cames from different controllers and deffrent fiber channel port(dual HBA). I test the preformance by writing 512MB in to the zfs, with 2 luns striped(each lun from diffrent

Hi We have following scenario/problem: Our zpool resides on a single LUN on a Hitachi Storage Array. We are thinking about making a physical clone of the zpool with the ShadowImage functionality. ShadowImage takes a snapshot of the LUN, and copies all the blocks to a new LUN (physical copy). In our case the new LUN is then made available on the same host as the original LUN. After the

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

Hey, A bit out of topic but I am looking for a micro server/pc if anyone knows a descent one... I found many nice NAS but I would like to have full access to the OS (install CentOS, etc). Dream one would be - Very quiet (fanless) since it will sit in my bedroom. - Headless - Small. - 2/3 HDs (2.5" are ok) for RAID1 (hardware RAID would be nice, and with BBC even more).- 1 or 2 GB NICs -

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:

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

ZFS documentation lists snapshot limits on any single file system in a pool at 2**48 snaps, and that seems to logically imply that a snap on a file system does not require an update to the pool?s currently active uberblock. That is to say, that if we take a snapshot of a file system in a pool, and then make any changes to that file system, the copy on write behavior induced by the changes will

Hi. Someone currently reported a ''ss == NULL'' panic in space_map.c/space_map_add() on FreeBSD''s version of ZFS. I found that this problem was previously reported on Solaris and is already fixed. I verified it and FreeBSD''s version have this fix in place...

Has anyone worked with a x4500/x4540 and know if the internal raid controllers have a bbu? I''m concern that we won''t be able to turn off the write-cache on the internal hds and SSDs to prevent data corruption in case of a power failure. -- This message posted from opensolaris.org

Hello Nico, Friday, January 19, 2007, 7:53:06 PM, you wrote: NVdM> Hi, NVdM> Looking if someone already found a solution, or workaround, to change the GUID of a zfs pool. NVdM> Explain me some more in depth, by use of tools like ShadowImage NVdM> on storage Arrays like the Sun Storagetek 99xx (but also for SUN NVdM> related storage Arrays or IBM, EMC and other storage vendors)

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

Hello, Does anyone know what may be causing this? Asterisk was built from cvs tonight. Ztcfg also says us is an invalid tone zone. Anyone got some information on what this is, why is it happening, and possibly some solutions? [root@anistonetech zapata]# asterisk -f -d DEBUG[1024]: File config.c, Line 653 (__ast_load): Parsing /etc/asterisk/asterisk.conf DEBUG[1024]: File config.c, Line 653

Like most others on this list I also have some really annoying echo whenever a call goes out to the PSTN from a SIP phone... SNOM/Budgettone -> Asterisk -> X100P -> PSTN I have tried every echo canceler in the makefile and turned on and off aggressive suppressor etc. etc. etc. tried 32,16,128, and 256 bridgetaps and I can get it reduced to only a few seconds on the intro of the call and

Hi, If I add an entire disk to a new pool by doing "zpool create", is this reversible? I.e. if there was data on that disk (e.g. it was the sole disk in a zpool in another system) can I get this back or is zpool create destructive? Joubert This message posted from opensolaris.org

I recently had an X86 system (running Nexenta Elatte, if that matters -- b101 kernel, I think) suffer hardware failure and refuse to boot. I''ve migrated the disks into a SPARC system (b115) in an attempt to bring the data back online while I see about repairing the former system. However, I''m having some trouble with the import process: hydra# zpool import pool: tank id:

Everyone, Just thought I would drop a line telling everyone here I have the software RxFAX/TxFAX up and running without any real problems. I did have to..... RH 9.0 1) Install an audio devel rpm 1) install libtiff from source, and copy over a bunch of include files to /usr/local/include 2) build/install spandsp 3) move app_rxfax.c and app_txfax.c to apps/ dir in asterisk source tree. 4)

Has anyone gotten the voicetronix boards to work with Asterisk, what would it take? Or does anyone know where I can get 4 ports or more fxs PCI cards that do work with asterisk? Brian J. Schrock Network Engineer, RHCE, CCNA Anistone Technologies Phone: 614-798-9106 FAX: 614-573-7165 6926 Avery Rd. Dublin, OH 43017

Hi, my system (solaris b77) was physically destroyed and i loosed data saved in a zpool mirror. The only thing left is a dettached vdev from the pool. I''m aware that uberblock is gone and that i can''t import the pool. But i still hope their is a way or a tool (like tct http://www.porcupine.org/forensics/) i can go too recover at least partially some data) thanks in advance for

Hello, I have read the information on echo and SIP in the FAQ and I have scoured the mailing list for possible solutions, but as yet I have not been able to get rid of this echo. I have a Sip phone, Digium 4 Port FXS, and 3 Digium FXO cards installed into an asterisk server. If I call between the Sip Phone (Budgettone-100) and the 4 FXS ports everything sounds great. If I call out to the PSTN