Re: RAID 5 array with journal device does not automatically assemble at boot

On 8. Nov 2017, at 21:58, deloptes wrote: > > Tobx wrote: > >> VERBOSE=false > > perhaps set to true and see what it says. The comment to this option states: # if this variable is set to true, mdadm will be a little more verbose e.g. # when creating the initramfs. I tried that, but I did

Re: RAID 5 array with journal device does not automatically assemble at boot

Tobx wrote: > RAID assembling at boot only works when no journal device is involved. > I can't help much here, nothing to compare. I forgot to mention that md driver is compiled in the kernel in my case. > VERBOSE=false perhaps set to true and see what it says. > > Options in /etc/mdadm/mdad

Re: RAID 5 array with journal device does not automatically assemble at boot

I was on 4.9.0-4 (Stretch), now tried with 4.13.0-0 but had no luck. I also tried it again on a clean Ubuntu-Server 17.10 with Kernel 4.13.0-16 and had exactly the same issue: RAID assembling at boot only works when no journal device is involved. > On 7. Nov 2017, at 20:04, deloptes wrote: >

Re: RAID 5 array with journal device does not automatically assemble at boot

Tobx wrote: > What am I missing? I don't know if it is related and I don't use raid5, but rather raid1, and in the past year or so I had experienced similar with our server. Now I run 4.12.10 and noticed in the changelog/release notes that there are a lot of fixes in the md stack. The issues are

Re: Raid 5

On 07/03/13 05:40 PM, Dan Ritter wrote: On Thu, Mar 07, 2013 at 12:05:02AM -0500, Gary Dale wrote: The issue is the probability of failure of a second drive when the array is vulnerable after the failure of one drive. Given that all modern drives have SMART capability, you can normally detect a

Re: Raid 5

On Thu, Mar 07, 2013 at 12:05:02AM -0500, Gary Dale wrote: > The issue is the probability of failure of a second drive when the > array is vulnerable after the failure of one drive. Given that all > modern drives have SMART capability, you can normally detect a > faulty drive long before it fails.

Re: Raid 5

On 06/03/13 09:49 PM, Richard Hector wrote: On 07/03/13 07:37, Dick Thomas wrote: What is the best way to setup a raid 5 array (4* 2TB drives) I'd avoid it, if possible. If you lose a disk from a 2-disk raid1, you're back to the reliability of a single disk. If you lose a disk from your 4-dis

Re: Raid 5

On 07/03/13 07:37, Dick Thomas wrote: > What is the best way to setup a raid 5 array (4* 2TB drives) I'd avoid it, if possible. If you lose a disk from a 2-disk raid1, you're back to the reliability of a single disk. If you lose a disk from your 4-disk raid 5, then you've got the reliability of

Re: Raid 5

On Wed, Mar 6, 2013 at 4:55 PM, Dick Thomas wrote: > On 6 March 2013 21:49, Tom H wrote: >> On Wed, Mar 6, 2013 at 1:59 PM, Gary Dale wrote: >>> >>> Sorry but this isn't difficult (although it may affect top-posters more than >>> bottom posters :) ). The Debian installer allows you to create a w

Re: Raid 5

On Wed, Mar 6, 2013 at 4:54 PM, Gary Dale wrote: > On 06/03/13 04:49 PM, Tom H wrote: >> On Wed, Mar 6, 2013 at 1:59 PM, Gary Dale wrote: >>> >>> Sorry but this isn't difficult (although it may affect top-posters more >>> than >>> bottom posters :) ). The Debian installer allows you to create a >

Re: Raid 5

On Wed, Mar 6, 2013 at 2:37 PM, Adam Wolfe wrote: > > Naw. I was using Wheezy. Partitioning the multiple drives did indeed give > me /dev/md0 but grub still wanted to install to /dev/sda, and thus failed. By default, d-i only installs grub to "/dev/sda" when you have an array. -- To UNSUBSCRIB

Re: Raid 5

On 6 March 2013 21:49, Tom H wrote: > On Wed, Mar 6, 2013 at 1:59 PM, Gary Dale wrote: >> >> Sorry but this isn't difficult (although it may affect top-posters more than >> bottom posters :) ). The Debian installer allows you to create a whole-disk >> RAID array then partition it. You have a sing

Re: Raid 5

On 06/03/13 04:49 PM, Tom H wrote: On Wed, Mar 6, 2013 at 1:59 PM, Gary Dale wrote: Sorry but this isn't difficult (although it may affect top-posters more than bottom posters :) ). The Debian installer allows you to create a whole-disk RAID array then partition it. You have a single RAID 5 arr

Re: Raid 5

On Wed, Mar 6, 2013 at 1:59 PM, Gary Dale wrote: > > Sorry but this isn't difficult (although it may affect top-posters more than > bottom posters :) ). The Debian installer allows you to create a whole-disk > RAID array then partition it. You have a single RAID 5 array with some > number of prima

Re: Raid 5

On 06/03/13 03:14 PM, Adam Wolfe wrote: On 03/06/2013 03:04 PM, Gary Dale wrote: On 06/03/13 02:37 PM, Adam Wolfe wrote: On 03/06/2013 02:34 PM, Gary Dale wrote: On 06/03/13 02:31 PM, Gary Dale wrote: On 06/03/13 02:26 PM, Adam Wolfe wrote: Ignore the advice from Adam Wolfe - it's nonse

Re: Raid 5

On 03/06/2013 03:04 PM, Gary Dale wrote: On 06/03/13 02:37 PM, Adam Wolfe wrote: On 03/06/2013 02:34 PM, Gary Dale wrote: On 06/03/13 02:31 PM, Gary Dale wrote: On 06/03/13 02:26 PM, Adam Wolfe wrote: Ignore the advice from Adam Wolfe - it's nonsense. Use the Debian installer (advanced

Re: Raid 5

On 06/03/13 02:37 PM, Adam Wolfe wrote: On 03/06/2013 02:34 PM, Gary Dale wrote: On 06/03/13 02:31 PM, Gary Dale wrote: On 06/03/13 02:26 PM, Adam Wolfe wrote: Ignore the advice from Adam Wolfe - it's nonsense. Use the Debian installer (advanced mode) to create the RAID 5 array on drives

Re: Raid 5

On 03/06/2013 02:34 PM, Gary Dale wrote: On 06/03/13 02:31 PM, Gary Dale wrote: On 06/03/13 02:26 PM, Adam Wolfe wrote: Ignore the advice from Adam Wolfe - it's nonsense. Use the Debian installer (advanced mode) to create the RAID 5 array on drives with just one partition (whole disk) as

Re: Raid 5

On 6 March 2013 19:31, Gary Dale wrote: > On 06/03/13 02:26 PM, Adam Wolfe wrote: >> >> >>> >>> Ignore the advice from Adam Wolfe - it's nonsense. Use the Debian >>> installer (advanced mode) to create the RAID 5 array on drives with just one >>> partition (whole disk) as /dev/md0. Then partition

Re: Raid 5

On 06/03/13 02:31 PM, Gary Dale wrote: On 06/03/13 02:26 PM, Adam Wolfe wrote: Ignore the advice from Adam Wolfe - it's nonsense. Use the Debian installer (advanced mode) to create the RAID 5 array on drives with just one partition (whole disk) as /dev/md0. Then partition the RAID 5 array

Re: Raid 5

On 06/03/13 02:26 PM, Adam Wolfe wrote: Ignore the advice from Adam Wolfe - it's nonsense. Use the Debian installer (advanced mode) to create the RAID 5 array on drives with just one partition (whole disk) as /dev/md0. Then partition the RAID 5 array into / and /home. Install and reboot.

Re: Raid 5

On 06/03/13 02:06 PM, Gary Dale wrote: On 06/03/13 01:55 PM, Dick Thomas wrote: About.me http://about.me/dick.thomas Blog: www.xpd259.co.uk G+: www.google.com/profiles/xpd259 gpg key: C791809B On 6 March 2013 18:47, Adam Wolfe wrote: I had one h**l of a time doing this over the weekend. W

Re: Raid 5

Ignore the advice from Adam Wolfe - it's nonsense. Use the Debian installer (advanced mode) to create the RAID 5 array on drives with just one partition (whole disk) as /dev/md0. Then partition the RAID 5 array into / and /home. Install and reboot. If you are using Wheezy this will work di

Re: Raid 5

On 06/03/13 01:55 PM, Dick Thomas wrote: About.me http://about.me/dick.thomas Blog: www.xpd259.co.uk G+: www.google.com/profiles/xpd259 gpg key: C791809B On 6 March 2013 18:47, Adam Wolfe wrote: I had one h**l of a time doing this over the weekend. What finally worked for me was creating L

Re: Raid 5

On 06/03/13 01:47 PM, Adam Wolfe wrote: I had one h**l of a time doing this over the weekend. What finally worked for me was creating LOGICAL partitions on each drive and setting them as used for RAID volume devices. This gave me /dev/sda5, /dev/sdb5 etc etc. When grub did it's install, it add

Re: Raid 5

About.me http://about.me/dick.thomas Blog: www.xpd259.co.uk G+: www.google.com/profiles/xpd259 gpg key: C791809B On 6 March 2013 18:47, Adam Wolfe wrote: > I had one h**l of a time doing this over the weekend. > > What finally worked for me was creating LOGICAL partitions on each drive and > s

Re: Raid 5

I had one h**l of a time doing this over the weekend. What finally worked for me was creating LOGICAL partitions on each drive and setting them as used for RAID volume devices. This gave me /dev/sda5, /dev/sdb5 etc etc. When grub did it's install, it added all the /dev/sda1 etc partitions and

Re: Raid 5

On 06/03/13 01:37 PM, Dick Thomas wrote: What is the best way to setup a raid 5 array (4* 2TB drives) should I make raid 5 for my system and /home then raid 0 or 1 for the boot, or should I buy a 5th drive for system/boot and install in the standard way? as this is my 1st time on debian and not s

Re: RAID 5 data structures

Joe McDonagh wrote: Sam Leon wrote: I have a funny question. I have been playing with a 3 disk raid 5 setup for my desktop. I guess I don't fully understand how the "stripe" is managed or even what it is. I know the stripe is made up of a chunk from each disk. Now I always thought of the s

Re: RAID 5 data structures

On Wed, Mar 11, 2009 at 07:11:11AM -0500, Sam Leon wrote: > I have a funny question. I have been playing with a 3 disk raid 5 setup > for my desktop. I guess I don't fully understand how the "stripe" is > managed or even what it is. I know the stripe is made up of a chunk > from each disk.

Re: RAID 5 data structures

Mark Allums wrote: Sam Leon wrote: I have a funny question. I have been playing with a 3 disk raid 5 setup for my desktop. I guess I don't fully understand how the "stripe" is managed or even what it is. I know the stripe is made up of a chunk from each disk. Now I always thought of the st

Re: RAID 5 data structures

Sam Leon wrote: I have a funny question. I have been playing with a 3 disk raid 5 setup for my desktop. I guess I don't fully understand how the "stripe" is managed or even what it is. I know the stripe is made up of a chunk from each disk. Now I always thought of the stripe in raid the sam

Re: raid 5/6 with different controller

On Jan 29, 2008, at 10:19 AM, Stuart Gall wrote: The other HUGE problem with cheap hardware raid is that in 5 years time when your controller dies there is no practical way to recover the data. Well, except restoring it from the backup you made. You *did* make one, right? RAID (hardware

Re: raid 5/6 with different controller

In article <[EMAIL PROTECTED]>, "Douglas A. Tutty" <[EMAIL PROTECTED]> wrote: > On Mon, Jan 28, 2008 at 11:33:12AM +0100, Pol Hallen wrote: > > I need some information about the raid 5 (or 6) using 2 different > > controller > > (one integrated in the mother board: 6 sata disks, and other pci c

Re: raid 5/6 with different controller

On Mon, Jan 28, 2008 at 11:33:12AM +0100, Pol Hallen wrote: > I need some information about the raid 5 (or 6) using 2 different controller > (one integrated in the mother board: 6 sata disks, and other pci controller > with 4 disks support). > > Is there any problem about data security and/or pe

Re: raid 5 : partitioned array VS lvm

On Oct 20, 2007, at 10:52 AM, Fab wrote: Alex Samad samad.com.au> writes: Lately I tried some different configurations (lvm & partition) to divide my raid 5 array. you might want to check out http://www.miracleas.com/BAARF/ BAARF2.html talks about why you might not want to use raid5 in th

Re: raid 5 : partitioned array VS lvm

also sprach Alex Samad <[EMAIL PROTECTED]> [2007.10.18.2359 +0200]: > you might want to check out http://www.miracleas.com/BAARF/BAARF2.html talks > about why you might not want to use raid5 in this config and maybe raid1/0 This document is included in the mdadm package. You can find it where you

Re: raid 5 : partitioned array VS lvm

Alex Samad samad.com.au> writes: > > Lately I tried some different configurations (lvm & partition) to divide > > my raid > > 5 array. > you might want to check out http://www.miracleas.com/BAARF/BAARF2.html talks > about why you might not want to use raid5 in this config and maybe raid1/0 Th

Re: raid 5 : partitioned array VS lvm

On Fri, Oct 19, 2007 at 07:59:36AM +1000, Alex Samad wrote: > On Thu, Oct 18, 2007 at 09:07:45PM +, Fab wrote: > > Hello, > > > > Lately I tried some different configurations (lvm & partition) to divide my > > raid > > 5 array. > you might want to check out http://www.miracleas.com/BAARF/BA

Re: raid 5 : partitioned array VS lvm

On Thu, Oct 18, 2007 at 09:07:45PM +, Fab wrote: > Hello, > > Lately I tried some different configurations (lvm & partition) to divide my > raid > 5 array. you might want to check out http://www.miracleas.com/BAARF/BAARF2.html talks about why you might not want to use raid5 in this config

Re: RAID 5 Help!

#uname -srm *Reply to:* * debian-user@lists.debian.org * Charlie Grosvenor (on-list)

Re: Raid 5 detects but doesn't start on boot

Hi Hank. > New sarge install. > System is on hda under lvm, works fine. > Created raid 5 device after system was built > dmesg shows autodetect of the array > Array doesn't start (nor lvm on top of it) during boot though. [..snip..] > It all seems rather kludgy to me ... what do I have to do to

Re: RAID 5 questions (software)

Quoting Michael Martinell <[EMAIL PROTECTED]>: Results: If I replace hard drive 1 I am unable to boot. Using the grub boot disk and pointing at hd 2,0 generates the following messages: md2 No spare disk to reconstruct array! continuing in degraded mode EXT3-fs: unable to read superblock pivot

Re: RAID 5 questions (software)

On Thu, 2005-07-07 at 12:10 -0500, Michael Martinell wrote: > an aside: what is the command to invoke the raid software w/o using the > setup disk? mdadm is the most common raid management software nowadays. $ mdadm --run /dev/md0 will start up the first raid device that you have already config

Re: RAID 5 questions (software)

On Thu, Jul 07, 2005 at 01:34:15PM -0500, Michael Martinell wrote: > > On Thu, July 7, 2005 11:11 am, Andy Smith said: > > >> If the first hard drive crashes how do you recover? > > > > You restore from backups or do a new install. > > > > There has got to be a better solution than that. I neve

Re: RAID 5 questions (software)

On Thu, July 7, 2005 11:11 am, Andy Smith said: >> If the first hard drive crashes how do you recover? > > You restore from backups or do a new install. > There has got to be a better solution than that. I never want to consider my backups to be a first line of defense against hardware failure.

Re: RAID 5 questions (software)

> You never mentioned a RAID controller so I assumed software RAID. > If you have a hardware RAID controller then the steps are usually > unique to that hardware and you need to consult its documentation. > That would be a typo - I have no raid controllor - just IDE. What I should have said was

Re: RAID 5 questions (software)

On Thu, Jul 07, 2005 at 11:57:01AM -0500, Michael Martinell wrote: > On Thu, July 7, 2005 11:11 am, Andy Smith said: > > On Thu, Jul 07, 2005 at 10:53:34AM -0500, Michael Martinell wrote: > >> I have been experiementing with the RAID stuff in Debian 3.1r0a > >> > >> In this experiment I configured

Re: RAID 5 questions (software)

On Thu, July 7, 2005 11:11 am, Andy Smith said: > On Thu, Jul 07, 2005 at 10:53:34AM -0500, Michael Martinell wrote: >> I have been experiementing with the RAID stuff in Debian 3.1r0a >> >> In this experiment I configured as follows: >> 1st Hard Drive >> /boot 400mb >> swap 2GB >> partition for Ra

Re: RAID 5 questions (software)

On Thu, Jul 07, 2005 at 10:53:34AM -0500, Michael Martinell wrote: > I have been experiementing with the RAID stuff in Debian 3.1r0a > > In this experiment I configured as follows: > 1st Hard Drive > /boot 400mb > swap 2GB > partition for Raid volume 37 GB > > 2nd - 4th HD > partition for Raid vo

Re: raid 5 on boot? root?

Richard Weil wrote: > I don't know if my configuration is (a) setup badly, or (b) impossible. > Before I spend too much more time on it, I wonder if anyone has > relevant experience. > > Is it possible to have both boot and root on RAID 5? I'm getting a > kernel panic mid-way through boot. Assumin

Re: raid 5 on boot? root?

On Tue, Aug 17, 2004 at 05:00:26PM -0600, Justin Guerin wrote: > Date: Tue, 17 Aug 2004 17:00:26 -0600 > From: Justin Guerin <[EMAIL PROTECTED]> > To: [EMAIL PROTECTED] > Subject: Re: raid 5 on boot? root? > > On Tuesday 17 August 2004 11:13, Richard Weil wrote

Re: raid 5 on boot? root?

On Tuesday 17 August 2004 11:13, Richard Weil wrote: > I don't know if my configuration is (a) setup badly, or (b) impossible. > Before I spend too much more time on it, I wonder if anyone has > relevant experience. > > Is it possible to have both boot and root on RAID 5? I'm getting a > kernel pan

Re: raid 5 on boot? root?

hi ya richard On Tue, 17 Aug 2004, Richard Weil wrote: > Is it possible to have both boot and root on RAID 5? I'm getting a > kernel panic mid-way through boot. Assuming it's not possible, what > about if boot is on a normal drive and root is on RAID 5? the better config is / 256MB /tmp

Re: Raid 5 and recoving from a crash

on Mon, Apr 22, 2002, hanasaki ([EMAIL PROTECTED]) wrote: > Hi Karsten, > > Since you are so far beyound my experience in this, could you point > out a few of the good, and not so good, vendors and products for both > the Raid and the Drives? > > How do you feel about IDE(and which IDE standard?

Re: Raid 5 and recoving from a crash

Hi Karsten, Since you are so far beyound my experience in this, could you point out a few of the good, and not so good, vendors and products for both the Raid and the Drives? How do you feel about IDE(and which IDE standard? 100?133?some new one I forget the name of:( ?) vs SCSI Raid (and wh

Re: Raid 5 and recoving from a crash

on Mon, Apr 22, 2002, hanasaki ([EMAIL PROTECTED]) wrote: > I guess my main two goals are: > - 100% hardware ide raid Many solutions available. > - Ability to go to a new card and not need to do a tape restore While appreciated there are several options: - Some hardware does suppo

Re: Raid 5 and recoving from a crash

I guess my main two goals are: - 100% hardware ide raid - Ability to go to a new card and not need to do a tape restore Karsten M. Self wrote: on Thu, Apr 18, 2002, hanasaki ([EMAIL PROTECTED]) wrote: Henrique de Moraes Holschuh wrote: On Thu, 18 Apr 2002, hanasaki wrote:

Re: Raid 5 and recoving from a crash

on Thu, Apr 18, 2002, hanasaki ([EMAIL PROTECTED]) wrote: > Henrique de Moraes Holschuh wrote: > >On Thu, 18 Apr 2002, hanasaki wrote: > > > >>had. Will I have problems becuase the newer card, or other vendor's > >>card, lays out the disks and / or data and does checksums > >>differently? > > > >Y

Re: Raid 5 and recoving from a crash

Hmm and when the 2nd controller dies? Or if its doa when I need it? Loooks like software Raid and a dual cpu ::( Henrique de Moraes Holschuh wrote: On Thu, 18 Apr 2002, hanasaki wrote: had. Will I have problems becuase the newer card, or other vendor's card, lays out the disks and / or data

Re: Raid 5 and recoving from a crash

On Thu, 18 Apr 2002, hanasaki wrote: > had. Will I have problems becuase the newer card, or other vendor's > card, lays out the disks and / or data and does checksums differently? Yes. > If so, how do I mitigate this risk? Either use software RAID, or buy two controllers. When one fails, use th

Re: raid 5 partition table example

On Mon, Nov 27, 2000 at 12:34:58AM -0600, Matt Fair wrote: > If you use raid 5 would you want to also have separate partitions for > /home, /usr, etc. ? > If so, what would be the best way to partition them? > If you have done this, could you show me your partition table? I have > only been able t

Re: raid 5 partition table example

hi ya matt... you can see an example raid5 config files.. /etc/raid5.conf or /etc/raidtab if oyu are using 3 drives is one oyur system drive ??? and 2 data drives ??? - if you plan to use 3 drives for / ( root )... than you are asking for some serious/additional "s

Re: raid 5 partition table example

When you do Raid 5 using 3 hard drives (that's the minimum), you put all 3 drives into a logical array. Then the system will only see 1 logical hard drive. After that, it doesn't matter how you create your partitions on it... You can create several logical drives but you will need more hard drives.