Re: Software raid VS hardware raid

2013-01-30 Thread Modulok
My other concern is what happens when one drive goes down if we use gmirror? Is it completelly transparent and bad drive can be hot swapped while server is running and rebuild started? I am thinking now about gpt+gmirror (including boot and swap) Artem Yes. In fact, you can test this by

Re: Software raid VS hardware raid

2013-01-30 Thread Artem Kuchin
30.01.2013 1:01, Warren Block: On Tue, 29 Jan 2013, Artem Kuchin wrote: 29.01.2013 18:57, Warren Block: On Tue, 29 Jan 2013, Artem Kuchin wrote: The Handbook chapter on gmirror talks about the problems with GPT and GEOM metadata. In short: right now, they conflict. It's possible to

Re: Software raid VS hardware raid

2013-01-30 Thread Andrea Venturoli
On 01/28/13 21:43, Artem Kuchin wrote: I am planning to use mirror configuration of two SATA 7200rpm 2TB disks. I personally vote for gmirror in this case; I've used it a lot and found it very good wrt to both performance and robustness. You can spend the extra money you spare on the

Re: Software raid VS hardware raid

2013-01-30 Thread Artem Kuchin
30.01.2013 18:06, Warren Block: On Wed, 30 Jan 2013, Artem Kuchin wrote: 30.01.2013 1:01, Warren Block: On Tue, 29 Jan 2013, Artem Kuchin wrote: 29.01.2013 18:57, Warren Block: On Tue, 29 Jan 2013, Artem Kuchin wrote: The Handbook chapter on gmirror talks about the problems with GPT

Re: Software raid VS hardware raid

2013-01-30 Thread Paul Kraus
On Jan 30, 2013, at 8:10 AM, Andrea Venturoli wrote: You can spend the extra money you spare on the controller buying good disks; as someone else pointed out don't get desktop-class ones, but 24x7 ones. Server Class drives buy you some improvement, but my recent experience with Seagate

Re: Software raid VS hardware raid

2013-01-30 Thread Artem Kuchin
There seems to be one more advantage to gmirror If i understood correctly gmirror label -v -b split -s 2048 data da0 da1 da2 will create a tripple mirror raid 1, that is triple redundancy, which is hardly available on any hardware raid. Am i correct here? Also, does anyone know how to choose

Re: Software raid VS hardware raid

2013-01-30 Thread Warren Block
On Wed, 30 Jan 2013, Artem Kuchin wrote: 30.01.2013 18:06, Warren Block: GPT partitions should work, just limit it to one mirrored partition per drive. Please, clarify what you mean here. If only one GPT partition on a drive is mirrored with another GPT partition on another drive, head

Re: Software raid VS hardware raid

2013-01-30 Thread Paul Kraus
On Jan 30, 2013, at 10:22 AM, Warren Block wrote: If you want to use the same drive for booting, it's possible. Create all three partitions on both drives manually. Then mirror the freebsd-ufs partition only. The contents of the freebsd-boot partition don't change often, and swap does

Re: Software raid VS hardware raid

2013-01-30 Thread Artem Kuchin
, but if first disk is brain damaged then bios may just stuck trying to boot from it and will not pass boot attempt to the second disk. I don't know, it depends on bios of course. But this seems to be a disadvantage to a software raid. Artem ___ freebsd

Re: Software raid VS hardware raid

2013-01-30 Thread Warren Block
, but if first disk is brain damaged then bios may just stuck trying to boot from it and will not pass boot attempt to the second disk. I don't know, it depends on bios of course. But this seems to be a disadvantage to a software raid. That's true. The similar situation with hardware RAID is when

Re: Software raid VS hardware raid

2013-01-29 Thread Artem Kuchin
29.01.2013 11:54, Michael Powell: Artem Kuchin wrote: I guess what I'm trying to point out is that low performance wrt software RAID will stem from other things besides just simply consuming a few CPU cycles. Today's CPUs have the cycles to spare. I've been using gmirror for RAID 1 mirrors

Re: Software raid VS hardware raid

2013-01-29 Thread Michael Powell
. I hope to see the same on a software raid. The controller would be a slight concern. But for what you've described doing I doubt it will be a big deal. The 3Ware may have a faster processor on it than say a generic onboard built-in. But since all we're talking here is a RAID 1 mirror my guess

Re: Software raid VS hardware raid

2013-01-29 Thread Warren Block
On Tue, 29 Jan 2013, Artem Kuchin wrote: My other concern is what happens when one drive goes down if we use gmirror? Is it completelly transparent and bad drive can be hot swapped while server is running and rebuild started? I am thinking now about gpt+gmirror (including boot and swap) As

Re: Software raid VS hardware raid

2013-01-29 Thread Artem Kuchin
29.01.2013 18:57, Warren Block: On Tue, 29 Jan 2013, Artem Kuchin wrote: The Handbook chapter on gmirror talks about the problems with GPT and GEOM metadata. In short: right now, they conflict. It's possible to mirror GPT partitions, but be aware that if you mirror more than one partition

Re: Software raid VS hardware raid

2013-01-29 Thread Mark Felder
On Tue, 29 Jan 2013 08:57:31 -0600, Warren Block wbl...@wonkity.com wrote: As far a gmirror is concerned, yes, drives can be removed and new drives inserted while the mirror is running. Hot swap is more of an issue with the hardware. I have not tried it with SATA drives, although I think

Re: Software raid VS hardware raid

2013-01-29 Thread Warren Block
On Tue, 29 Jan 2013, Artem Kuchin wrote: 29.01.2013 18:57, Warren Block: On Tue, 29 Jan 2013, Artem Kuchin wrote: The Handbook chapter on gmirror talks about the problems with GPT and GEOM metadata. In short: right now, they conflict. It's possible to mirror GPT partitions, but be aware

Software raid VS hardware raid

2013-01-28 Thread Artem Kuchin
someone has personal experience with both worlds and can tell if it really matters in such configuration if i go for software raid. What are the benefits and what are the negatives of software raid? How much is the performance penalty? I am planning to use mirror configuration of two SATA

Re: Software raid VS hardware raid

2013-01-28 Thread Per olof Ljungmark
conf is 8core 32gb ram 2.8+ ghz. So, maybe someone has personal experience with both worlds and can tell if it really matters in such configuration if i go for software raid. What are the benefits and what are the negatives of software raid? How much is the performance penalty? I am planning

Re: Software raid VS hardware raid

2013-01-28 Thread Daniel Feenberg
it is not the best hardware for freebsd. The server base conf is 8core 32gb ram 2.8+ ghz. So, maybe someone has personal experience with both worlds and can tell if it really matters in such configuration if i go for software raid. What are the benefits and what are the negatives of software raid? How much

Re: Software raid VS hardware raid

2013-01-28 Thread Paul Kraus
On Jan 28, 2013, at 3:43 PM, Artem Kuchin wrote: I have to made a decision on choosing a dedicated server. The problem i see is that while i can find very affordable and good options they do not provide hardware raid or even if they do it is not the best hardware for freebsd. I prefer SW

Re: Software raid VS hardware raid

2013-01-28 Thread Michael Powell
32gb ram 2.8+ ghz. So, maybe someone has personal experience with both worlds and can tell if it really matters in such configuration if i go for software raid. What are the benefits and what are the negatives of software raid? How much is the performance penalty? I am planning to use mirror

software raid

2012-02-07 Thread Jim Pazarena
Does FreeBSD support any type of software raid? I have an old rack mount server which has 8 bays, but all SATA, and NO raid. Sure would be nice to have a software raid to create a NAS device. -- Jim Pazarena fqu...@paz.bz ___ freebsd-questions

Re: software raid

2012-02-07 Thread Modulok
Does FreeBSD support any type of software raid? I have an old rack mount server which has 8 bays, but all SATA, and NO raid. Sure would be nice to have a software raid to create a NAS device. Yes! An example of setting up a 3 disk raidz might look like this: zpool create myfancyraid

Re: software raid

2012-02-07 Thread Warren Block
On Tue, 7 Feb 2012, Jim Pazarena wrote: Does FreeBSD support any type of software raid? I have an old rack mount server which has 8 bays, but all SATA, and NO raid. Sure would be nice to have a software raid to create a NAS device. Sure, multiple ways, in fact: http://www.freebsd.org/doc

Re: Software RAID options

2010-01-30 Thread Mike Clarke
On Saturday 30 January 2010, Danny Edge wrote: Thanks, Glen, I should have mentioned that I did see gmirror mentioned in the HB. Pending further suggestions, I will try gmirror for software RAID 1 (yes, as large as the smallest disk). It's also possible to mirror individual slices rather than

Software RAID options

2010-01-29 Thread Danny Edge
What works for you and can you suggest a guide? I haven't setup a BSD server in 8 years, but my environment will be: FreeBSD 7.2 Release x2 HD's (not the same size, if I need to spend the money, on two like drives, kindly insist) DNS cache and auth Postfix MTA 1 user/1 IMAP mailbox less than

Re: Software RAID options

2010-01-29 Thread Glen Barber
Hi, Danny Edge wrote: What works for you and can you suggest a guide? I haven't setup a BSD server in 8 years, but my environment will be: I've been using gmirror for some time, without problems. http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/geom-mirror.html FreeBSD 7.2

Re: Software RAID options

2010-01-29 Thread Danny Edge
://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/geom-mirror.html Thanks, Glen, I should have mentioned that I did see gmirror mentioned in the HB. Pending further suggestions, I will try gmirror for software RAID 1 (yes, as large as the smallest disk). [Snip...] . I also plan on backing up via

Re: FreeBSD Software RAID

2009-05-27 Thread Matthew Seaman
Gary Gatten wrote: What about with PAE and/or other extension schemes? Doesn't help with the KVM requirement, and still only provides a 4GB address space for any single process. If it's just memory requirements, can I assume if I don't have a $hit load of storage and billions of files it

Re: FreeBSD Software RAID

2009-05-27 Thread Wojciech Puchar
I really don't have any hard data on ZFS performance relative to UFS + geom. so please test yourself :) ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to

Re: FreeBSD Software RAID

2009-05-27 Thread Wojciech Puchar
ZFS should work on i386. As far as I know there aren't any killer bugs that are architecture specific, but I'm no expert. Unless your aim is to learn unless someone assume than size of pointers are 4 bytes, and write program in C, there will work as good in 64-bit mode and in 32-bit mode.

Re: FreeBSD Software RAID

2009-05-27 Thread Kirk Strauser
On Wednesday 27 May 2009 09:52:42 am Wojciech Puchar wrote: ZFS should work on i386. As far as I know there aren't any killer bugs that are architecture specific, but I'm no expert. Unless your aim is to learn unless someone assume than size of pointers are 4 bytes, and write program in

Re: FreeBSD Software RAID

2009-05-27 Thread Wojciech Puchar
in C, there will work as good in 64-bit mode and in 32-bit mode. Wojciech, I have to ask: are you actually a programmer or are you repeating yes i am. if you are interested i wrote programs for x86, ARM (ARM7TDMI), MIPS32 (4Kc), and once for alpha. I have quite good knowledge for ARM and

Re: FreeBSD Software RAID

2009-05-27 Thread Kirk Strauser
On Wednesday 27 May 2009 11:40:51 am Wojciech Puchar wrote: you talk about performance or if it work at all? Both, really. If they have to code up macros to support identical operations (such as addition) on both platforms, and accidentally forget to use the macro in some place, then voila:

Re: FreeBSD Software RAID

2009-05-27 Thread Wojciech Puchar
you talk about performance or if it work at all? Both, really. If they have to code up macros to support identical operations OK. talking about performance: - 64-bit addition/substraction on 32-bit computer: 2 instructions instead of one (ADD+ADC) - 64-bit NOT, XOR, AND, OR and

Re: FreeBSD Software RAID

2009-05-27 Thread David Kelly
On Wed, May 27, 2009 at 11:52:33AM -0500, Kirk Strauser wrote: On Wednesday 27 May 2009 11:40:51 am Wojciech Puchar wrote: you talk about performance or if it work at all? Both, really. If they have to code up macros to support identical operations (such as addition) on both platforms,

Re: FreeBSD Software RAID

2009-05-27 Thread Wojciech Puchar
I haven't looked at the ZFS code but this sort of thing is exactly why all code I write uses int8_t, int16_t, int32_t, uint8_t, ... even when the first thing I have to do with a new compiler is to work out the proper typedefs to create them. int, short and char are portable, only other things

Re: FreeBSD Software RAID

2009-05-27 Thread David Kelly
On Wed, May 27, 2009 at 09:24:17PM +0200, Wojciech Puchar wrote: I haven't looked at the ZFS code but this sort of thing is exactly why all code I write uses int8_t, int16_t, int32_t, uint8_t, ... even when the first thing I have to do with a new compiler is to work out the proper typedefs to

Re: FreeBSD Software RAID

2009-05-27 Thread Roland Smith
On Wed, May 27, 2009 at 09:24:17PM +0200, Wojciech Puchar wrote: I haven't looked at the ZFS code but this sort of thing is exactly why all code I write uses int8_t, int16_t, int32_t, uint8_t, ... even when the first thing I have to do with a new compiler is to work out the proper typedefs

Re: FreeBSD Software RAID

2009-05-26 Thread Howard Jones
Wojciech Puchar wrote: you are right. you can't be happy of warm house without getting really cold some time :) that's why it's excellent that ZFS (and few other things) is included in FreeBSD but it's COMPLETELY optional. Well, I switched from the heater that doesn't work and is poorly

Re: FreeBSD Software RAID

2009-05-26 Thread Steve Bertrand
Howard Jones wrote: Wojciech Puchar wrote: you are right. you can't be happy of warm house without getting really cold some time :) that's why it's excellent that ZFS (and few other things) is included in FreeBSD but it's COMPLETELY optional. Well, I switched from the heater that doesn't

Re: FreeBSD Software RAID

2009-05-26 Thread Adam Vande More
Sweet thanks for the info. Building one of those boxes is next in the list. On 5/26/09, Steve Bertrand st...@ibctech.ca wrote: Howard Jones wrote: Wojciech Puchar wrote: you are right. you can't be happy of warm house without getting really cold some time :) that's why it's excellent that

Re: FreeBSD Software RAID

2009-05-26 Thread Kirk Strauser
On Monday 25 May 2009 08:57:48 am Howard Jones wrote: I'm was half-considering switching to ZFS, but the most positive thing I could find written about that (as implemented on FreeBSD) is that it doesn't crash that much, so perhaps not. That was from a while ago though. Wojciech hates it for

RE: FreeBSD Software RAID

2009-05-26 Thread Gary Gatten
Why avoid ZFS on x86? -Original Message- From: owner-freebsd-questi...@freebsd.org [mailto:owner-freebsd-questi...@freebsd.org] On Behalf Of Kirk Strauser Sent: Tuesday, May 26, 2009 12:39 PM To: freebsd-questions@freebsd.org Subject: Re: FreeBSD Software RAID On Monday 25 May 2009 08

Re: FreeBSD Software RAID

2009-05-26 Thread cpghost
On Tue, May 26, 2009 at 01:15:41PM -0500, Gary Gatten wrote: Why avoid ZFS on x86? That's because ZFS works best with huge amounts of (Kernel-)RAM, and i386 32-bit doesn't provide enough adressing space. Btw, I've tried ZFS on two FreeBSD/amd64 test machines with 8GB and 16GB of RAM, and it

Re: FreeBSD Software RAID

2009-05-26 Thread Matthew Seaman
Gary Gatten wrote: Why avoid ZFS on x86? Because in order to deal most effectively with disk arrays of 100s or 1000s of GB as are typical nowadays, ZFS requires more than the 4GB of addressable RAM[*] that the i386 arch can provide. You can make ZFS work on i386, but it requires very careful

RE: FreeBSD Software RAID

2009-05-26 Thread Gary Gatten
? -Original Message- From: owner-freebsd-questi...@freebsd.org [mailto:owner-freebsd-questi...@freebsd.org] On Behalf Of Matthew Seaman Sent: Tuesday, May 26, 2009 1:38 PM To: Gary Gatten Cc: freebsd-questions@freebsd.org Subject: Re: FreeBSD Software RAID Gary Gatten wrote: Why avoid ZFS on x86

Re: FreeBSD Software RAID

2009-05-26 Thread Kirk Strauser
On Tuesday 26 May 2009 01:44:51 pm Gary Gatten wrote: What about with PAE and/or other extension schemes? If it's just memory requirements, can I assume if I don't have a $hit load of storage and billions of files it will work ok with 4GB of RAM? I guess I'm just making sure there isn't some

Re: FreeBSD Software RAID

2009-05-26 Thread Wojciech Puchar
Wojciech hates it for some reason, but I wouldn't let that deter you. I'm same == incredibly low performance. of course having overmuscled CPU not much used for anything else - it may not be a problem. ___ freebsd-questions@freebsd.org mailing

RE: FreeBSD Software RAID

2009-05-26 Thread Gary Gatten
10-4, thanks! -Original Message- From: owner-freebsd-questi...@freebsd.org [mailto:owner-freebsd-questi...@freebsd.org] On Behalf Of Kirk Strauser Sent: Tuesday, May 26, 2009 2:00 PM To: freebsd-questions@freebsd.org Subject: Re: FreeBSD Software RAID On Tuesday 26 May 2009 01:44:51 pm

RE: FreeBSD Software RAID

2009-05-26 Thread Wojciech Puchar
- Filesystem sizes are dynamic. They all grow and shrink inside the same pool, so you don't have to worry about making one too large or too small. there are actually almost no filesystems, just one filesystem with many upper descriptors and separate per filesystem quota. just to make happy

Re: FreeBSD Software RAID

2009-05-26 Thread Wojciech Puchar
You can make ZFS work on i386, but it requires very careful tuning and is not going to work brilliantly well for particularly large or high-throughput filesystems. you mean high transfer like reading/writing huge files. anyway not faster than properly configured UFS+maybe gstripe/gmirror.

RE: FreeBSD Software RAID

2009-05-26 Thread Wojciech Puchar
ZFS is thoroughly 64-bit and uses 64-bit math pervasively. That means you have to emulate all those operations with 2 32-bit values, and on the register-starved x86 platform you end up with absolutely horrible performance. no this difference isn't that great. it doesn't use much less CPU on

Re: FreeBSD Software RAID

2009-05-26 Thread Matthew Seaman
Wojciech Puchar wrote: You can make ZFS work on i386, but it requires very careful tuning and is not going to work brilliantly well for particularly large or high-throughput filesystems. you mean high transfer like reading/writing huge files. anyway not faster than properly configured

FreeBSD Software RAID

2009-05-25 Thread Howard Jones
Hi, Can anyone with experience of software RAID point me in the right direction please? I've used gmirror before with no trouble, but nothing fancier. I have a set of brand new 1TB drives, a Sil3124 SATA card and a FreeBSD 7.1-p4 system. I created a RAID 5 set with gvinum: drive d0 device /dev

Re: FreeBSD Software RAID

2009-05-25 Thread Mister Olli
of software RAID point me in the right direction please? I've used gmirror before with no trouble, but nothing fancier. I have a set of brand new 1TB drives, a Sil3124 SATA card and a FreeBSD 7.1-p4 system. I created a RAID 5 set with gvinum: drive d0 device /dev/ad4s1a drive d1 device /dev

RE: FreeBSD Software RAID

2009-05-25 Thread Graeme Dargie
-Original Message- From: Howard Jones [mailto:howard.jo...@network-i.net] Sent: 25 May 2009 14:58 To: freebsd-questions@freebsd.org Subject: FreeBSD Software RAID Hi, Can anyone with experience of software RAID point me in the right direction please? I've used gmirror before

Re: FreeBSD Software RAID

2009-05-25 Thread Valentin Bud
On Mon, May 25, 2009 at 7:30 PM, Graeme Dargie a...@tangerine-army.co.ukwrote: -Original Message- From: Howard Jones [mailto:howard.jo...@network-i.net] Sent: 25 May 2009 14:58 To: freebsd-questions@freebsd.org Subject: FreeBSD Software RAID Hi, Can anyone with experience

Re: FreeBSD Software RAID

2009-05-25 Thread Wojciech Puchar
i use gmirror but once i tried gvinum and it doesn't work well. i think simply use mirroring. ZFS will introduce 100 times more problems than it solves ___ freebsd-questions@freebsd.org mailing list

Re: FreeBSD Software RAID

2009-05-25 Thread David Kelly
On Mon, May 25, 2009 at 07:37:59PM +0300, Valentin Bud wrote: On Mon, May 25, 2009 at 7:30 PM, Graeme Dargie a...@tangerine-army.co.ukwrote: Can anyone with experience of software RAID point me in the right direction please? I've used gmirror before with no trouble, but nothing fancier

Re: FreeBSD Software RAID

2009-05-25 Thread Wojciech Puchar
I have looked at ZFS recently. Appears to be a memory hog, needs about 1 GB especially if large file transfers may occur over gigabit ethernet while it CAN be set up on 256MB machine with a little big flags in loader.conf (should be autotuned anyway) - it generally takes as much memory as it's

RE: FreeBSD Software RAID

2009-05-25 Thread Graeme Dargie
-Original Message- From: Wojciech Puchar [mailto:woj...@wojtek.tensor.gdynia.pl] Sent: 25 May 2009 18:09 To: FreeBSD-Questions@freebsd.org Cc: Howard Jones; Graeme Dargie; Valentin Bud Subject: Re: FreeBSD Software RAID I have looked at ZFS recently. Appears to be a memory hog

Re: FreeBSD Software RAID

2009-05-25 Thread David Kelly
On Mon, May 25, 2009 at 07:09:15PM +0200, Wojciech Puchar wrote: I have looked at ZFS recently. Appears to be a memory hog, needs about 1 GB especially if large file transfers may occur over gigabit ethernet while it CAN be set up on 256MB machine with a little big flags in loader.conf

RE: FreeBSD Software RAID

2009-05-25 Thread Wojciech Puchar
Ok granted this is a server sat in my house and it is not a mission critical server in a large business, personally I have can live with ZFS taking a bit longer vs resilience. simply gmirror and UFS gives the same. much simpler, much faster. but of course lots of people like to make their life

Re: FreeBSD Software RAID

2009-05-25 Thread Wojciech Puchar
It makes a certain degree of sense. Sometimes things have to be done wrong for us to realize how good we had it before. How would we know how great FreeBSD is if we didn't have Linux? I had to look at ZFS to decide not to use it when I rebuild my storage this week due to a failing drive. you

RE: FreeBSD Software RAID

2009-05-25 Thread Graeme Dargie
-Original Message- From: Wojciech Puchar [mailto:woj...@wojtek.tensor.gdynia.pl] Sent: 25 May 2009 18:54 To: Graeme Dargie Cc: FreeBSD-Questions@freebsd.org; Howard Jones; Valentin Bud Subject: RE: FreeBSD Software RAID Ok granted this is a server sat in my house

RE: FreeBSD Software RAID

2009-05-25 Thread Wojciech Puchar
but of course lots of people like to make their life harder No I am not making life harder at all ... I have 6x500gb hard disks I want in a good solid raid 5 type configuration. So you are somewhat wide of the mark in your assumptions. that's a reason. just don't forget that RAID-z is MUCH

Software RAID performance? RAID-Z or vinum and RAID5?

2009-03-16 Thread Mike Manlief
I'm looking into moving a workstation from Ubuntu 10 to FreeBSD 7.1 (both amd64) and I'm a bit worried about storage -- specifically moving from mdadm, which performs very well for me. Current in Linux I use an mdadm RAID5 of 5 disks. After investigating FreeBSD storage options, RAID-Z sounds

Software RAID options for a media server

2008-08-02 Thread [EMAIL PROTECTED]
Hi Guys, As my dream of a hardware based SCSI RAID root disk was so soundly dashed, I have been trying to figure out the most appropriate software implementation for a media server. Which sw RAID is best for streaming media? The options I have are: RAID1z, the redundancy is not my concern

Re: Software RAID and Logical Volume in Linux versus FreeBSD

2008-04-25 Thread Ivan Voras
Matt Proud wrote: Hi all, I have used FreeBSD for a long time very casually but have never explored any of its software RAID or volume management features---at least to a degree to which I feel comfortable with them. What I would like to know with this post is 1.) whether there exists

Software RAID and Logical Volume in Linux versus FreeBSD

2008-04-24 Thread Matt Proud
Hi all, I have used FreeBSD for a long time very casually but have never explored any of its software RAID or volume management features---at least to a degree to which I feel comfortable with them. What I would like to know with this post is 1.) whether there exists the ability to setup

Re: software raid 1 and recovery

2008-01-05 Thread Brian A. Seklecki
On Fri, 2008-01-04 at 10:56 -0500, Brian A. Seklecki wrote: Google: nagios + seklecki + check_raid_gmirror Also check out sysutils/smartmontools/ Also, I recently updated the plugin code to r270 with some patches from Scott Swanson. You can see a small screenshot of it in action here:

Re: software raid 1 and recovery

2008-01-04 Thread Brian A. Seklecki
Google: nagios + seklecki + check_raid_gmirror Also check out sysutils/smartmontools/ Cheers! ~BAS (Dealing with a fucked up gmirror raid 1 this morning) On Fri, 2008-01-04 at 15:32 +, Robin Becker wrote: I set this system up using Dru Lavigne's recipe, but I don't really understand --

software raid 1 and recovery

2008-01-04 Thread Robin Becker
I'm using software raid 1 on a 6.1 freebsd. This is a so called cold swap system, but I wonder how much it actually improves reliability. First off what should I be doing to detect error conditions and secondly what happens if the machine refuses to boot. I set this system up using Dru

Best software raid 5 software?

2007-03-21 Thread Gabriel Rossetti
Hello, I am about to switch to software raid 5 for my personal server. I know hardware raid 5 is better, but being a student I'd rather not invest in a raid adapter now, plus my cpu is being used at about 0.0% 24/24 7/7, so it needs some exercise :-) I've heard of several software-based

Re: Best software raid 5 software?

2007-03-21 Thread John Nielsen
On Wednesday 21 March 2007 03:03:53 am Gabriel Rossetti wrote: I am about to switch to software raid 5 for my personal server. I know hardware raid 5 is better, but being a student I'd rather not invest in a raid adapter now, plus my cpu is being used at about 0.0% 24/24 7/7, so it needs some

Re: Best software raid 5 software?

2007-03-21 Thread Peter A. Giessel
On 2007/03/21 6:33, John Nielsen seems to have typed: On Wednesday 21 March 2007 03:03:53 am Gabriel Rossetti wrote: I am about to switch to software raid 5 for my personal server. I know hardware raid 5 is better, but being a student I'd rather not invest in a raid adapter now, plus my cpu

Re: Software RAID guidance

2006-05-05 Thread David Robillard
FreeBSD 6.0 onto the two IBM drives. Now, I wanted to mirror the other two for data and looking for guidance as to whether it is first of all suited for software RAID and if so, CCD or vinum. I am contemplating vinum because the handbook mentions CCD is when cost is the important factor and for me

Software RAID guidance

2006-05-04 Thread Robert Fitzpatrick
drives. Now, I wanted to mirror the other two for data and looking for guidance as to whether it is first of all suited for software RAID and if so, CCD or vinum. I am contemplating vinum because the handbook mentions CCD is when cost is the important factor and for me, is reliability. What would

Re: Software RAID guidance

2006-05-04 Thread Alex Zbyslaw
FreeBSD 6.0 onto the two IBM drives. Now, I wanted to mirror the other two for data and looking for guidance as to whether it is first of all suited for software RAID and if so, CCD or vinum. I am contemplating vinum because the handbook mentions CCD is when cost is the important factor and for me

Re: Software RAID guidance

2006-05-04 Thread Robert Fitzpatrick
the controller, so I have removed the RAID arrays and loaded FreeBSD 6.0 onto the two IBM drives. Now, I wanted to mirror the other two for data and looking for guidance as to whether it is first of all suited for software RAID and if so, CCD or vinum. I am contemplating vinum because the handbook

Re: Software RAID guidance

2006-05-04 Thread Ian Jefferson
as though geom is the way of the future but does not currently support R5 which is what I was looking for. Somewhere out there is a pretty comprehensive set of iozone benchmarks comparing linux and BSD software Raid. Ah found it: http://www25.big.jp/~jam/filesystem/old/ This might give you some ideas

Re: Software RAID guidance

2006-05-04 Thread Kevin Kinsey
FreeBSD 6.0 onto the two IBM drives. Now, I wanted to mirror the other two for data and looking for guidance as to whether it is first of all suited for software RAID and if so, CCD or vinum. I am contemplating vinum because the handbook mentions CCD is when cost is the important factor and for me

Re: Software RAID guidance

2006-05-04 Thread Robert Fitzpatrick
On Thu, 2006-05-04 at 19:59 -0400, Ian Jefferson wrote: I think if you want mirroring only you should consult the geom pages. Great, I believe I have this setup right. I'm not sure what the fdisk issue may be with the message 'fdisk: Geom not found', but all looks to have setup properly. Now,

Re: Software RAID guidance

2006-05-04 Thread Cheng-Lung Sung
suited for software RAID and if so, CCD or vinum. I am contemplating vinum because the handbook mentions CCD is when cost is the important factor and for me, is reliability. What would someone suggest? If vinum, one thing I don't quite understand is do I create the partitions to be used

Re: Software RAID guidance

2006-05-04 Thread Cheng-Lung Sung
IMHO, fdisk is unnecessary. I got my two brand new HDs ad[46] mirrored w/o fdisk. On Thu, May 04, 2006 at 09:15:39PM -0400, Robert Fitzpatrick wrote: On Thu, 2006-05-04 at 19:59 -0400, Ian Jefferson wrote: I think if you want mirroring only you should consult the geom pages. Great, I

Re: Software RAID guidance

2006-05-04 Thread Robert Fitzpatrick
On Fri, 2006-05-05 at 09:20 +0800, Cheng-Lung Sung wrote: Great, I believe I have this setup right. I'm not sure what the fdisk issue may be with the message 'fdisk: Geom not found', but all looks to have setup properly. Now, just to have a clear understanding, what is the purpose of

Re: Software RAID guidance

2006-05-04 Thread Cheng-Lung Sung
Hi, newfs first? In my experiment, there is only one mirror/gm0s1 exists (no s1a, s1c...) On Thu, May 04, 2006 at 09:40:17PM -0400, Robert Fitzpatrick wrote: On Fri, 2006-05-05 at 09:20 +0800, Cheng-Lung Sung wrote: Great, I believe I have this setup right. I'm not sure what the fdisk

Re: Software RAID guidance

2006-05-04 Thread Robert Fitzpatrick
On Fri, 2006-05-05 at 09:16 +0800, Cheng-Lung Sung wrote: 1. http://people.freebsd.org/~rse/mirror/ Great doc, thanks! I was able to get the first part of the 2nd approach booting from the gm0 mirror, but after booting and trying to add my da0 to the mirror, it does not recognize the

Booting into an installed software raid system

2006-04-18 Thread valentin_nils
Hello FreeBSD users, I am happilly installing FreeBSD systems (remotely), however there is one thing which I would like to get solved, hopefully the one or the other can help me out. Anyway here the story goes: I have setup a sample FreeBSD system (Software Raid 1) on the devices /dev/ad2

Software RAID-1 FreeBSD 5.4

2006-03-04 Thread Tamouh H.
Hi, This is on FreeBSD 5.4 latest stable snapshot on January. I've followed the instructions at: http://www.onlamp.com/pub/a/bsd/2005/11/10/FreeBSD_Basics.html for creating software RAID, which appears to have been successful. the raid created, and synched, couple of reboots all is good. So

Software RAID 5

2006-01-31 Thread Michael
Hello there, I have a Dell Power Edge 2400 system with 4 X 18 GB SCSI Drives. I would like to use a software Raid 5 using FreeBSD 5.4. Any suggestions on how to go about doing it? I have read so many articles, it makes my head hurt. There are many options, for mirroring, but some are better

Atacontrol software RAID

2005-09-19 Thread Norberto Meijome
Hi all, I've been trying to build a 2 disk mirror with atacontrol on a standard IDE controller (testing in vmware), from an already running 4.11 system. ad0 has the system, ad3 is the new drive. I thought I should be able to mimic the gmirror trick of making a 1 disk degraded mirror on ad3,

Recommended Software RAID-5 on dual-amd64

2005-08-29 Thread Norberto Meijome
Hi all, I have a dual Opteron box built with http://tyan.com/products/html/gt24b2891_spec.html , using 4 identical SATA drives. I plan to use FBSD 6 (installing beta2, cvsup to head). I will use gmirror to RAID-1 the boot partition, and RAID-5 for the remainder. I was wondering which is the

Re: Software RAID-1 - Swap partition

2005-07-06 Thread Danny Howard
John Oxley wrote: Hi, I followed http://people.freebsd.org/~rse/mirror/ to create a software RAID mirror. I have two 75G drives in the machine. I allocated 74G to the filesystem on each drive and 1 G to swap. When I blanked ad1 and created ad1s1, I didn't notice that it had taken up

Software RAID-1 - Swap partition

2005-07-01 Thread John Oxley
Hi, I followed http://people.freebsd.org/~rse/mirror/ to create a software RAID mirror. I have two 75G drives in the machine. I allocated 74G to the filesystem on each drive and 1 G to swap. When I blanked ad1 and created ad1s1, I didn't notice that it had taken up the whole of the drive. Can

RE: Software RAID-1 on FreeBSD 5.4

2005-06-30 Thread Ted Mittelstaedt
Of ptitoliv Sent: Wednesday, June 29, 2005 12:56 PM To: freebsd-questions@freebsd.org Subject: Re: Software RAID-1 on FreeBSD 5.4 Hello again, Thank you for all your answers ! I am going to look at gmirror and ccd. But I have a last question. My disks are differents. One is a Maxtor detected with a 111 GB

Software RAID-1 on FreeBSD 5.4

2005-06-29 Thread ptitoliv
Hello everybody, I have 2 120 Go Drives installed on my FreeBSD 5.4 Box. I want to create with these 2 disks a software RAID-1 solution. I wanted to use vinum but lots of people say that vinum is very unstable on FreeBSD 5.4. So I am asking you what is the best solution to make RAID-1 on FreeBSD

Re: Software RAID-1 on FreeBSD 5.4

2005-06-29 Thread Emanuel Strobl
Am Mittwoch, 29. Juni 2005 21:28 schrieb ptitoliv: Hello everybody, I have 2 120 Go Drives installed on my FreeBSD 5.4 Box. I want to create with these 2 disks a software RAID-1 solution. I wanted to use vinum but lots of people say that vinum is very unstable on FreeBSD 5.4. So I am I can't

Re: Software RAID-1 on FreeBSD 5.4

2005-06-29 Thread albi
On Wed, 29 Jun 2005 21:28:22 +0200 ptitoliv [EMAIL PROTECTED] wrote: I have 2 120 Go Drives installed on my FreeBSD 5.4 Box. I want to create with these 2 disks a software RAID-1 solution. I wanted to use vinum but lots of people say that vinum is very unstable on FreeBSD 5.4. So I am asking

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