similar to: Any zfs fault injection tools?

> > Message: 6 > Date: Mon, 30 Sep 2013 20:23:16 +0200 > From: David Demelier <demelier.david at gmail.com> > To: freebsd-stable at freebsd.org > Subject: Re: 9.2-PRE: switch off that stupid "Nakatomi Socrates" > Message-ID: <5249C194.8030504 at gmail.com> > Content-Type: text/plain; charset=ISO-8859-1 > > On 30.09.2013 15:50, Matthieu Volat

I gave the AMD64 version of 7.2 RC2 a spin and all installed as expected off the dvd INTEL S3200SHV MB, Core2Duo, 4G of RAM In the past it had been suggested that for zfs tuning, something like vm.kmem_size_max="1073741824" vm.kmem_size="1073741824" vfs.zfs.prefetch_disable=1 However doing a simple test with bonnie and dd, there does not seem to be very much difference in

Hi there, is it possible to install a FreeBSD as Xen VM? All links which i found at google were down :( Anyone a good and simple howto? greetz -- Mit freundlichen Grüßen Daniel mailto:daniel@listmails.de _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users

Hi all, Can anyone pleas tell me what would be best practice to use shared storage with virtual machines, especially when it involved high availability / automated failover between 2 XEN servers? i.e. if I setup 2x identical XEN servers, each with say 16GB RAM, 4x 1GB NIC''s, etc. Then I need the xen domU''s to auto failover between the 2 servers if either goes down (hardware

Hi list, I googled around but couldn''t find anything on whether someone has good or bad experiences with the Caviar *Blue* drives? I saw in the archives Caviar Blacks are *not* recommended for ZFS arrays (excluding apparently RE3 and RE4?). Specifically I''m looking to buy Western Digital Caviar Blue WD10EALS 1TB drives [1]. Does anyone have any experience with these drives? If

Had an idea, could someone please tell me why it''s wrong? (I feel like it has to be). A RaidZ-2 pool with one missing disk offers the same failure resilience as a healthy RaidZ1 pool (no data loss when one disk fails). I had initially wanted to do single parity raidz pool (5disk), but after a recent scare decided raidz2 was the way to go. With the help of a sparse file

I know i''m probably doing something REALLY stupid.....but for some reason i can''t get send/recv to work over ssh. I just built a new media server and i''d like to move a few filesystem from my old server to my new server but for some reason i keep getting strange errors... At first i''d see something like this: pfexec: can''t get real path of

I''m just uploading all my data to my server and the space used is much more than what i''m uploading; Documents = 147MB Videos = 11G Software= 1.4G By my calculations, that equals 12.547T, yet zpool list is showing 21G as being allocated; NAME SIZE ALLOC FREE CAP DEDUP HEALTH ALTROOT dpool 27.2T 21.2G 27.2T 0% 1.00x ONLINE - It doesn''t look like

Hello, I''d like to know if there has been any discussion about adding a new feature to write (add) data at an offset, but without overwriting existing data, or re-writing the existing data. Essentially, in-place addition/removal of data to a file at a place other than the end of the file. Some possible use-cases of such a feature would be: (a) Databases (currently hack around this by

On Fri 07 January 2011 08:14:17 Hubert Kario wrote: > I''d suggest at least > mkfs.btrfs -m raid1 -d raid0 /dev/sdc /dev/sdd > if you really want raid0 I don''t fully understand -m or -d. Why would this make a truer raid0 that with no options? Is it necessary to use fdisk on new drives in creating a BTRFS multi-drive array? Or is this all that''s needed: #

Hello list, while following this list for more then 1 year, I feel that this list was a great way to get insights into ZFS. Thank you all for contributing. Over the last month''s I was writing a little "whitepaper" trying to consolidate the knowledge collected here. It has now reached a "beta" state and I would like to share the result with you. I call it -

Hello all, please tell me, is it possible (at least theoretically) to circumvent bug 622 [1] by using GRUB instead of /boot/loader to load FreeBSD kernel? Or it is silly idea: even if we bypass /boot/loader we will not be able to run FreeBSD kernel in a HVM-domain on a Intel-based host for some other reason? As far as I know, GRUB can''t load FreeBSD kernel directly, but only can

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, 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 All, I am looking at ZFS and I get that they call it RAIDZ which is similar to RAID 5, but what about RAID 10? Isn''t a RAID 10 setup better for data protection? So if I have 8 x 1.5tb drives, wouldn''t I: - mirror drive 1 and 5 - mirror drive 2 and 6 - mirror drive 3 and 7 - mirror drive 4 and 8 Then stripe 1,2,3,4 Then stripe 5,6,7,8 How does one do this with ZFS?

Just thought I'd pass along that I have successfully installed FreeBSD 7.0 into a Xen 3.1 HVM. ?This one went as smooth as I expected, considering my experience with 6.3. ?Haven't done any benchmarking or stress testing or port installs or anything. ?But so far it's working nicely. Here's all the info. ?If you'd like to see anything else, let me know. Host hardware: ?

How does this setting work? I was hoping to use it to make connections predictable. I have vncunused = 1 as well, but xen never starts the server on the expected port (dom-u id). Thanks! jlc _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users

Hi Can someone please suggest open source project or free tool for P2V. (converting Linux and Windows machines to their Xen virtual images.) I found this one, http://et.redhat.com/~rjones/virt-p2v/virt-p2v.1.html Would like to hear about people''s experience with this tool too. Thanks /Jd __________________________________________________ Do You Yahoo!? Tired of spam?

I have installed Kubuntu 8.04 with xen 3.2 on kernel 2.6.24-16-xen on amd64 hardware. Then I have created a new domU with xen-tools. The domU is using loopback-images. When I try to start the domU it ends with this: Error: Device 51713 (vbd) could not be connected. losetup /dev/loop0 /home/xen/domains/xx/swap.img failed. loopx is raised by 2 for every try. It looks like a classic and simple

I have zpool like that pool: tank state: ONLINE scrub: none requested config: NAME STATE READ WRITE CKSUM tank ONLINE 0 0 0 raidz3-0 ONLINE 0 0 0 ___c6t0d0 ONLINE 0 0 0 ___c6t1d0 ONLINE 0 0 0 ___c6t2d0 ONLINE 0 0 0 ___c6t3d0 ONLINE 0 0 0 ___c6t4d0 ONLINE