similar to: ZFS Hot Spare Behavior

Hello, I have a Dell 2950 with a Perc 5/i, two 300GB 15K SAS drives in a RAID0 array. I am considering going to ZFS and I would like to get some feedback about which situation would yield the highest performance: using the Perc 5/i to provide a hardware RAID0 that is presented as a single volume to OpenSolaris, or using the drives separately and creating the RAID0 with OpenSolaris and ZFS? Or

Hi, I just noticed something interesting ... don''t know whether it''s relevant or not (two commands run in succession during a ''nightly'' run): $ iostat -xnz 6 [...] extended device statistics r/s w/s kr/s kw/s wait actv wsvc_t asvc_t %w %b device 0.0 0.3 0.0 0.8 0.0 0.0 0.2 0.2 0 0 c2t0d0 2.2

We have a production SunFireV240 that had a zfs mirror until this week. One of the drives (c1t3d0) in the mirror failed. The system was shutdown and the bad disk replaced without an export. I don''t know what happened next but by the time I got involved there was no evidence that the remaining good disk (c1t2d0) had ever been part of a ZFS mirror. Using dd on the raw device I can see data

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:

On a V240 running s10u4 (no additional patches), I had a pool which looked like this: <pre> > # zpool status > pool: pool01 > state: ONLINE > scrub: none requested > config: > > NAME STATE READ WRITE CKSUM > pool01 ONLINE 0 0 0 > mirror

1. I have a 4x18GB drive setup as RAIDZ. Now when thinking about it in terms of RAID5 I would expect to get (4-1)x18 worth of drive space, but DF -h shows 4x18. Is this a bug or do I not understand? 2. Once again thinking in RAID5 terms if I have 4X18GB and 12X9GB drives and I want to make a RAIDZ of all of them I would expect the 18GB to be treated at 9GB so the RAIDZ would be 16X9GB. Is

Hi, in preparation to try zfs boot on sparc I installed all recent patches incl. feature patches comming from s10s_u3wos_10 and after reboot finally 137137-09 (still having everything on UFS). Now it doesn''t boot at anymore: ############################### Sun Fire V240, No Keyboard Copyright 2006 Sun Microsystems, Inc. All rights reserved. OpenBoot 4.22.23, 2048 MB memory installed,

Hello experts, I would like consult you some questions regarding RFE 6334757 and CR 6322205 (disk write cache). ========================================== RFE 6334757 disk write cache should be enabled and should have a tool to switch it on and off CR 6322205 Enable disk write cache if ZFS owns the disk ========================================== The cu found on SPARC Enterprise T5140,

Hi. While submitting SDR-0149 on ZFS bug I encountered problem with format utility. This is v240 with snv_29 with internal disks. On s0 slices there is zfs pool (which is not imported). I did unload zfs modules then moved zfs driver and run format. Now format quits just because there''s no zfs module (and not even one zfs pool is imported). It shouldn''t behave that

Hi, I have lost a ZFS volume and I am hoping to get some help to recover the information ( a couple of months worth of work :( ). I have been using ZFS for more than 6 months on this project. Yesterday I ran a "zvol status" command, the system froze and rebooted. When it came back the discs where not available. See bellow the output of " zpool status", "format"

Hello, I can see that there is an implementation/emulation of ddi_pathname in DTrace, but I''m a bit confused about the capabilities and invocation of this function. I would like to diplay the path to the block device from bdev_strategy and other io:genunix::start probes. If someone is familiar with ddi_pathname, could you please provide an example invocation? Thanks, Michael This

Here is what I have configured: T2000 with OBP 4.28.6 2008/05/23 12:07 with 2 - 72 GB disks as the root disks OpenSolaris Nevada Build 91 Solaris Express Community Edition snv_91 SPARC Copyright 2008 Sun Microsystems, Inc. All Rights Reserved. Use is subject to license terms. Assembled 03 June 2008

I have a question concerning memory. I understood that R takes a fixed amount of memory at startup (which I can influence with --vsize --nsize) and that gc() shows the memory still free of the total memory reserved for R. However, if I create a long vector of character data, gc() only seem to reflect the space needed for a vector of pointers to char, the space used for the character data itself

Using R 2.7.0 under WinXP. I need to write a function that takes a non-negative vector and returns the parallell maximum between a percentage of this argument and a fixed value. Both the percentages and the fixed values depend on which interval x falls in. Intervals are as follows: >From | To | % of x | Minimum

We booked our UK techies into RailsConf Europe 2006 and one of them can''t make it?. so (assuming we''re allowed to by the conference) we''d like to make the ticket available to someone as a small "thank you" to the Rails community. I guess we''d like to think that would mean it went to someone who is involved in the community but couldn''t

Unfortunately, I can''t go to RailsConf either. I''m therefore offering my ticket for the usual $400 (list price). Please email me off list if you''re interested. Thanks. -- Graham

Using ZFS v22, is it possible to add a hot spare to rpool? Thanks -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://mail.opensolaris.org/pipermail/zfs-discuss/attachments/20100929/4b036d1d/attachment.html>

Hi all, As part of getting the remaining services up on the machine that is supposed to run the Syslinux website and a few others, I would like to factor away some services in VMs, which is great except it is expensive for memory. As such, if there is anyone around who has spare DDR2 ECC FBDIMMs in 2 GB or even better 4 GB densities that they wouldn't mind parting with, it would be really

Author: eschrock Repository: /hg/zfs-crypto/gate Revision: 975fad4fa05753c23a18254797cce42bb33b4375 Log message: 6433264 crash when adding spare: nvlist_lookup_string(cnv, "path", &path) == 0 6433406 zfs_open() can leak memory on failure 6433408 namespace_reload() can leak memory on allocation failure 6433679 zpool_refresh_stats() has poor error semantics 6433680 changelist_gather()

With our without puppet. We are looking at setting up DR nodes with some draft ideas. We use puppet against a git repository (with ppg) instead of against a puppet server. Nodes are actually VMs. Configuration ideas: - a filesystem-level flag that indicates that the node is running as standby spare, to use as conditional in bash/python scripts as well as in puppet - some services