similar to: Changing GUID

Hi, How I can I quiesce / freeze all writes to zfs and zpool if want to take hardware level snapshots or array snapshot of all devices under a pool ? are there any commands or ioctls or apis available ? Thanks & Regards, sridhar. -- This message posted from opensolaris.org

Hi, I have two questions: 1) Is there any way of renaming zpool without export/import ?? 2) If I took hardware snapshot of devices under a zpool ( where the snapshot device will be exact copy including metadata i.e zpool and associated file systems) is there any way to rename zpool name of snapshotted devices ?? without losing data part? Thanks & Regards, sridhar. -- This message posted

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

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

Deduplication was committed last night by Mr. Bonwick: > Log message: > PSARC 2009/571 ZFS Deduplication Properties > 6677093 zfs should have dedup capability http://mail.opensolaris.org/pipermail/onnv-notify/2009-November/010683.html Via c0t0d0s0.org.

Hi all, Can anyone explain to me, or point me to any docs that explain how the following numbers map together? I have multiple LUNS exported to my HBA''s from multiple EMC arrays. zpool status, and /dev/dsk show device names like: c0t6006048000038794003753594D333837d0 ONLINE 0 0 0 c0t6006048000038794003753594D333838d0 ONLINE 0 0 0

Hello, I know, that you had this discussion a view days ago but I''m in the installation phase of our new production servers and I intend to migrate the data from UFS volumes to ZFS volumes in near future. For doing this it must be ABSOLUTELY sure that I can resize the SAN LUNs because during the last 4 years I had to double the LUN size every year. I tried to resize a test volume

ZFS fans, I''m preparing some analyses on RAS for large JBOD systems such as the Sun Fire X4500 (aka Thumper). Since there are zillions of possible permutations, I need to limit the analyses to some common or desirable scenarios. Naturally, I''d like your opinions. I''ve already got a few scenarios in analysis, and I don''t want to spoil the brain storming, so

Ciao, the rot filesystem of my thumper is a ZFS with a single disk: bash-3.2# zpool status rpool pool: rpool state: ONLINE scrub: none requested config: NAME STATE READ WRITE CKSUM rpool ONLINE 0 0 0 c5t0d0s0 ONLINE 0 0 0 spares c0t7d0 AVAIL c1t6d0 AVAIL c1t7d0

How much fun can you have with a simple thing like powerpath? Here''s the story: I have a (remote) system with access to a couple of EMC LUNs. Originally, I set it up with mpxio and created a simple zpool containing the two LUNs. It''s now been reconfigured to use powerpath instead of mpxio. My problem is that I can''t import the pool. I get: pool: ###### id:

This question is concerning ZFS. We have a Sun Fire V890 attached to a EMC disk array. Here''s are plan to incorporate ZFS: On our EMC storage array we will create 3 LUNS. Now how would ZFS be used for the best performance? What I''m trying to ask is if you have 3 LUNS and you want to create a ZFS storage pool, would it be better to have a storage pool per LUN or combine the 3

Short question: I''m curious as to how ZFS manages space (free and used) and how its usage interacts with thin provisioning provided by HDS arrays. Is there any effort to minimize the number of provisioned disk blocks that get writes so as to not negate any space benefits that thin provisioning may give? Background & more detailed questions: In Jeff Bonwick''s blog[1], he

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

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

Hi there, have a strange behavior if i?ll create a zfs pool at an EMC PowerPath pseudo device. I can create a pool on emcpower0a but not on emcpower2a zpool core dumps with invalid argument .... ???? Thats my second maschine with powerpath and zfs the first one works fine, even zfs/powerpath and failover ... Is there anybody who has the same failure and a solution ? :) Greets Dominik

Hi, I just found out that ZFS triggers a kernel-panic while switching a mounted volume into read-only mode: The system is attached to a Symmetrix, all zfs-io goes through Powerpath: I ran some io-intensive stuff on /tank/foo and switched the device into read-only mode at the same time (symrdf -g bar failover -establish). ZFS went ''bam'' and triggered a Panic: WARNING: /pci at

Does anyone on the list have definitive information on whether ZFS works with CLARiiON devices? bash-3.00# uname -a SunOS XXXXXXX 5.10 Generic_118833-33 sun4u sparc SUNW,Sun-Fire-V245 bash-3.00# powermt display dev=all Pseudo name=emcpower0a CLARiiON ID=APM00033500540 [XXXXXXX] Logical device ID=600601607C550E00F25F4629AFBEDB11 [LUN 61] state=alive; policy=BasicFailover; priority=0; queued-IOs=0

Hi, I am wondering if there is a guideline on how to configure ZFS on a server with Oracle database? We are experiencing some slowness on writes to ZFS filesystem. It take about 530ms to write a 2k data. We are running Solaris 10 u5 127127-11 and the back-end storage is a RAID5 EMC EMX. This is a small database with about 18gb storage allocated. Is there a tunable parameters that we can apply to

OEL 5, OCFS 1.4, using EMC Power Path for multi pathing. I want t mount the OCFS2 file system on the emc power path device. I can mount by UUID, and not have to worry about persistent bindings across nodes. But how do I make sure when it mounts by UUID , that the pwoer path device is used. Any help will be much appreciated. Thanks -- Sridhar Avantsa savantsa at gmail.com -------------- next

As mentioned last night, we''ve been reviewing a proposal for hot spare support in ZFS. Below you can find a current draft of the proposed interfaces. This has not yet been submitted for ARC review, but comments are welcome. Note that this does not include any enhanced FMA diagnosis to determine when a device is "faulted". This will come in a follow-on project, of which some