Re: [zfs-discuss] ZFS Hard disk buffer at 100%

2010-05-08 Thread Ben Rockwood
The drive (c7t2d0)is bad and should be replaced. The second drive (c7t5d0) is either bad or going bad. This is exactly the kind of problem that can force a Thumper to it knees, ZFS performance is horrific, and as soon as you drop the bad disks things magicly return to normal. My first recommend

[zfs-discuss] ZFS Hard disk buffer at 100%

2010-05-08 Thread Emily Grettel
Hi Giovani, Thanks for the reply. Here's a bit of iostat after uncompressing a 2.4Gb RAR file that has 1 DWF file that we use. extended device statistics r/sw/s kr/s kw/s wait actv wsvc_t asvc_t %w %b device 1.0 13.0 26.0 18.0 0.0 0.00.00

Re: [zfs-discuss] Is it safe to disable the swap partition?

2010-05-08 Thread Brandon High
On Sat, May 8, 2010 at 9:41 AM, Richard Elling wrote: >> Remove the line from /etc/vfstab and reboot. > > No need to reboot.  Just edit the /etc/vfstab and use "swap -d" > to remove the swap device. I tried that on a VBox instance and it failed to remove the swap. I guess only reboot id swap -d d

Re: [zfs-discuss] Mirrored Servers

2010-05-08 Thread Tony
Ok, this is definitely the kind of feedback I was looking for. I'll have to check out the docs on these technologies it looks like. Appreciate it. I figured I would load balance the hosts with a Cisco device, since I can get around the IOS ok. I want to offer a online backup service that pr

Re: [zfs-discuss] Mirrored Servers

2010-05-08 Thread Ben Rockwood
On 5/8/10 3:07 PM, Tony wrote: > Lets say I have two servers, both running opensolaris with ZFS. I basically > want to be able to create a filesystem where the two servers have a common > volume, that is mirrored between the two. Meaning, each server keeps an > identical, real time backup of the

Re: [zfs-discuss] Supermicro AOC-SAT2-MV8 -- cfgadm won't create attach point (dsk/xxxx)

2010-05-08 Thread Giovanni
Hi, Were you ever able to solve this problem on your AOC-SAT2-MV8 card? I am in need of purchasing it to add more drives to my server. Thanks Giovanni -- This message posted from opensolaris.org ___ zfs-discuss mailing list zfs-discuss@opensolaris.org

Re: [zfs-discuss] Mirrored Servers

2010-05-08 Thread Richard Elling
On May 8, 2010, at 3:07 PM, Tony wrote: > Lets say I have two servers, both running opensolaris with ZFS. I basically > want to be able to create a filesystem where the two servers have a common > volume, that is mirrored between the two. In ZFS, file systems live in pools. Only one node can hav

Re: [zfs-discuss] Is it safe to disable the swap partition?

2010-05-08 Thread Bob Friesenhahn
On Sat, 8 May 2010, Edward Ned Harvey wrote: A vast majority of the time, the opposite is true. Most of the time, having swap available increases performance. Because the kernel is able to choose: "Should I swap out this idle process, or should I dump files out of cache?" With swap enabled, th

Re: [zfs-discuss] Mirrored Servers

2010-05-08 Thread Ian Collins
On 05/ 9/10 10:07 AM, Tony wrote: Lets say I have two servers, both running opensolaris with ZFS. I basically want to be able to create a filesystem where the two servers have a common volume, that is mirrored between the two. Meaning, each server keeps an identical, real time backup of the ot

[zfs-discuss] Mirrored Servers

2010-05-08 Thread Tony
Lets say I have two servers, both running opensolaris with ZFS. I basically want to be able to create a filesystem where the two servers have a common volume, that is mirrored between the two. Meaning, each server keeps an identical, real time backup of the other's data directory. Set them both

Re: [zfs-discuss] Is it safe to disable the swap partition?

2010-05-08 Thread Edward Ned Harvey
> From: zfs-discuss-boun...@opensolaris.org [mailto:zfs-discuss- > boun...@opensolaris.org] On Behalf Of Karl Dalen > > If I want to reduce the I/O accesses for example to SSD media on a > laptop > and I don't plan to run any big applications is it safe to delete the > swap file ? > > How do I co

Re: [zfs-discuss] Plugging in a hard drive after Solaris has booted up?

2010-05-08 Thread Ian Collins
On 05/ 9/10 06:54 AM, Giovanni Mazzeo wrote: giova...@server:~# cfgadm Ap_Id Type Receptacle Occupant Condition sata1/0disk connectedunconfigured unknown sata1/1::dsk/c8t1d0disk connectedconfigur

Re: [zfs-discuss] why both dedup and compression?

2010-05-08 Thread Erik Trimble
Dennis is correct, in that compressibility is inversely related to randomness. And, also that binaries have nice commonality of symbols and headers. All of which goes to excellent DEDUP. But not necessarily real good compression - since what we need for compression is duplication /inside/ each fi

[zfs-discuss] Dedup stats per file system

2010-05-08 Thread P-O Yliniemi
I have noticed that dedup is discussed a lot in this list right now.. Starting to experiment with dedup=on, I feel it would be interesting in knowing exactly how efficient dedup is. The problem is that I've found no way of checking this per file system. I have turned dedup on for a few file sy

Re: [zfs-discuss] ZFS loses configuration

2010-05-08 Thread R.G. Keen
I've run into something odd. I find that my EON setup loses all user ids and passwords when rebooted. It does import the zpool. Do I need to update the image every time I add users? -- This message posted from opensolaris.org ___ zfs-discuss mailing l

Re: [zfs-discuss] Is it safe to disable the swap partition?

2010-05-08 Thread Richard Elling
On May 8, 2010, at 8:57 AM, Brandon High wrote: > On Thu, Apr 22, 2010 at 11:59 AM, Karl Dalen wrote: >> If I want to reduce the I/O accesses for example to SSD media on a laptop >> and I don't plan to run any big applications is it safe to delete the swap >> file ? > > When installing on a sma

[zfs-discuss] asus pike slot

2010-05-08 Thread Thomas Burgess
I was wondering if anyone had any first hand knowledge of compatibility with any asus pike slot expansion cards and OpenSolaris. I would guess this should work: http://www.newegg.com/Product/Product.aspx?Item=N82E16816110042 because it's based on lsi 1068e but i'm currious if anyone knows for s

Re: [zfs-discuss] zfs directory symlink owner

2010-05-08 Thread Michelle Knight
"One will be relative (../a/foo) and the other absolute (/mirror/audio-Cd-Tracks/a/foo)." Makes sense. I hadn't actually noticed this. It is not only sharing to Linux machines but also using SFTP as well from outside, so I need things to be pretty much multi-functional and flexible. I don't ha

Re: [zfs-discuss] Is it safe to disable the swap partition?

2010-05-08 Thread Brandon High
On Thu, Apr 22, 2010 at 11:59 AM, Karl Dalen wrote: > If I want to reduce the I/O accesses for example to SSD media on a laptop > and I don't plan to run any big applications is it safe to delete the swap > file ? When installing on a small drive (eg: 8GB thumb drive), the installer doesn't crea

Re: [zfs-discuss] Freeing unused space in thin provisioned zvols

2010-05-08 Thread Brandon High
On Sat, May 8, 2010 at 5:04 AM, Lutz Schumann wrote: > Now If I think there would be "write all zero, clear the block again" in ZFS > (which I suggest in this thread) I could do the following: > > Fill the disks within the VM's with all zero (dd if=/dev/zero of=/MYFILE > bs=1M ...). This could e

Re: [zfs-discuss] Exporting iSCSI - it's still getting all the ZFS protection, right?

2010-05-08 Thread Lutz Schumann
Everything that has readed the storage will be written to disk as sent. However watch our for the writeback cache setting of comstar. If you enable a writeback cache AND your machine boots very fast (< 2 Minutes), you may have data integrity issues because Windows "thinks" the target was just s

Re: [zfs-discuss] Freeing unused space in thin provisioned zvols

2010-05-08 Thread Lutz Schumann
I have to come back to this issue after a while cause it just hit me. I have a VMWare vSphere 4 test host. I have various machines in there to do tests for performance and other stuff. So a lot of IO/ benchmarks are done and a lot of data is created during this benchmarks. The vSphere test ma