Re: [CentOS] CentOS 7: software RAID 5 array with 4 disks and no spares?

2015-02-20 Thread James B. Byrne
On Thu, February 19, 2015 13:41, Chris Murphy wrote: Linux distros experience on this front is terrible. Why? Linux OS's Because Linux-land is a bazaar and Apple-land is a cathedral. You cannot have consistency at the user level without stability at the OS and application framework level.

Re: [CentOS] CentOS 7: software RAID 5 array with 4 disks and no spares?

2015-02-20 Thread James B. Byrne
On Thu, February 19, 2015 22:01, Dennis Jacobfeuerborn wrote: On 19.02.2015 19:41, Chris Murphy wrote: Linux with a thousand knobs is never going become popular. Instead somebody has to go and create an opinionated system where most knobs are removed and replaced by sane/good/useful

Re: [CentOS] CentOS 7: software RAID 5 array with 4 disks and no spares?

2015-02-19 Thread Chris Murphy
On Thu, Feb 19, 2015 at 12:06 AM, John R Pierce pie...@hogranch.com wrote: On 2/18/2015 9:39 PM, Chris Murphy wrote: You might be a candidate for LVM integrated raid. It uses the md kernel code on the backend, but it's all LVM tools to create, manage and monitor. The raid level is defined per

Re: [CentOS] CentOS 7: software RAID 5 array with 4 disks and no spares?

2015-02-19 Thread Kahlil Hodgson
On 20 February 2015 at 05:25, Chris Murphy li...@colorremedies.com wrote: I'd say your mom is an admin in the sense that chickens fly and horses swim. It's a confusing analogy. Chickens don't fly. Horses do swim. I have a couple of chickens, and yes, the buggers do fly if you don't clip their

Re: [CentOS] CentOS 7: software RAID 5 array with 4 disks and no spares?

2015-02-19 Thread m . roth
Kahlil Hodgson wrote: On 20 February 2015 at 05:25, Chris Murphy li...@colorremedies.com wrote: I'd say your mom is an admin in the sense that chickens fly and horses swim. It's a confusing analogy. Chickens don't fly. Horses do swim. I have a couple of chickens, and yes, the buggers do

Re: [CentOS] CentOS 7: software RAID 5 array with 4 disks and no spares?

2015-02-19 Thread Chris Murphy
On Thu, Feb 19, 2015 at 12:25 AM, Niki Kovacs i...@microlinux.fr wrote: A *user* never has to even see - or use - an installer. A USER has to USE a computer, by which I mean the applications he or she needs to get some work done. This is a false dichotomy. I reject it. There's too much fact

Re: [CentOS] CentOS 7: software RAID 5 array with 4 disks and no spares?

2015-02-19 Thread Niki Kovacs
Le 19/02/2015 11:03, Chris Murphy a écrit : This is a false dichotomy. I reject it. There's too much fact to the contrary. My mom has done an OS installation, she is most definitely not an admin. I'd say your mom is an admin in the sense that chickens fly and horses swim. :o) -- Microlinux -

Re: [CentOS] CentOS 7: software RAID 5 array with 4 disks and no spares?

2015-02-19 Thread Dennis Jacobfeuerborn
On 19.02.2015 06:28, Chris Murphy wrote: On Wed, Feb 18, 2015 at 4:20 PM, m.r...@5-cent.us wrote: Niki Kovacs wrote: Le 18/02/2015 23:12, close, but then, for mysterious reasons, Red Hat decided to cripple it into oblivion. Go figure. One word: desktop. That's what they want to conquer

Re: [CentOS] CentOS 7: software RAID 5 array with 4 disks and no spares?

2015-02-19 Thread Chris Murphy
On Thu, Feb 19, 2015 at 3:28 AM, Niki Kovacs i...@microlinux.fr wrote: Le 19/02/2015 11:03, Chris Murphy a écrit : This is a false dichotomy. I reject it. There's too much fact to the contrary. My mom has done an OS installation, she is most definitely not an admin. I'd say your mom is an

Re: [CentOS] CentOS 7: software RAID 5 array with 4 disks and no spares?

2015-02-19 Thread Chris Murphy
On Thu, Feb 19, 2015 at 5:47 AM, Dennis Jacobfeuerborn denni...@conversis.de wrote: I think the problem is that you simply have to draw a distinction between technology and product. The rise of the Linux desktop will never happen because Linux is not a product but a technology and as a result

Re: [CentOS] CentOS 7: software RAID 5 array with 4 disks and no spares?

2015-02-19 Thread Chris Murphy
Dennis Jacobfeuerborn denni...@conversis.de I'm not sure why you seem to disagree with what I wrote (unconvinced) and then basically say what I was saying. you: result has to be a jack of all trades. me: Chrome is not jack of all trades (yet) yet is very successful/growing But also I'm

Re: [CentOS] CentOS 7: software RAID 5 array with 4 disks and no spares?

2015-02-19 Thread James B. Byrne
On Thu, February 19, 2015 02:25, Niki Kovacs wrote: Le 19/02/2015 05:43, Chris Murphy a écrit : My personal view on installers is extremely biased toward the user staying out of trouble, they shouldn't have to read documentation for a GUI installer. A *user* never has to even see - or use

Re: [CentOS] CentOS 7: software RAID 5 array with 4 disks and no spares?

2015-02-19 Thread Dennis Jacobfeuerborn
On 19.02.2015 19:41, Chris Murphy wrote: On Thu, Feb 19, 2015 at 5:47 AM, Dennis Jacobfeuerborn denni...@conversis.de wrote: I think the problem is that you simply have to draw a distinction between technology and product. The rise of the Linux desktop will never happen because Linux is not a

Re: [CentOS] CentOS 7: software RAID 5 array with 4 disks and no spares?

2015-02-19 Thread Chris Murphy
On Thu, Feb 19, 2015 at 1:38 PM, Kahlil Hodgson kahlil.hodg...@dealmax.com.au wrote: On 20 February 2015 at 05:25, Chris Murphy li...@colorremedies.com wrote: I'd say your mom is an admin in the sense that chickens fly and horses swim. It's a confusing analogy. Chickens don't fly. Horses do

Re: [CentOS] CentOS 7: software RAID 5 array with 4 disks and no spares?

2015-02-18 Thread Michael Volz
Hi Niki, md127 apparently only uses 81.95GB per disk. Maybe one of the partitions has the wrong size. What's the output of lsblk? Regards Michael - Ursprüngliche Mail - Von: Niki Kovacs i...@microlinux.fr An: CentOS mailing list CentOS@centos.org Gesendet: Mittwoch, 18. Februar 2015

Re: [CentOS] CentOS 7: software RAID 5 array with 4 disks and no spares?

2015-02-18 Thread g
i am going to sit the rest of this out and read Michael's book. ;-) -- peace out. in a world with out fences, who needs gates. CentOS GNU/Linux 6.6 tc,hago. g . ___ CentOS mailing list CentOS@centos.org

Re: [CentOS] CentOS 7: software RAID 5 array with 4 disks and no spares?

2015-02-18 Thread Niki Kovacs
Le 18/02/2015 09:59, Niki Kovacs a écrit : └─sdd3 8:51 0 76,4G 0 part └─md127 9:127 0 229G 0 raid5 / Any idea what's going on ? Ooops, just saw it. /dev/sdd3 apparently has the wrong size. As to why this is so, it's a mystery. I'll investigate further into this. (Since

Re: [CentOS] CentOS 7: software RAID 5 array with 4 disks and no spares?

2015-02-18 Thread g
On 02/18/2015 03:01 AM, Niki Kovacs wrote: Le 18/02/2015 09:59, Niki Kovacs a écrit : └─sdd3 8:51 0 76,4G 0 part └─md127 9:127 0 229G 0 raid5 / Any idea what's going on ? Ooops, just saw it. /dev/sdd3 apparently has the wrong size. As to why this is so, it's a mystery.

Re: [CentOS] CentOS 7: software RAID 5 array with 4 disks and no spares?

2015-02-18 Thread Michael Volz
and then recreate the array. Michael - Ursprüngliche Mail - Von: Niki Kovacs i...@microlinux.fr An: centos@centos.org Gesendet: Mittwoch, 18. Februar 2015 10:01:49 Betreff: Re: [CentOS] CentOS 7: software RAID 5 array with 4 disks and no spares? Le 18/02/2015 09:59, Niki Kovacs a écrit

Re: [CentOS] CentOS 7: software RAID 5 array with 4 disks and no spares?

2015-02-18 Thread Niki Kovacs
Le 18/02/2015 09:24, Michael Volz a écrit : Hi Niki, md127 apparently only uses 81.95GB per disk. Maybe one of the partitions has the wrong size. What's the output of lsblk? [root@nestor:~] # lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT sda 8:00 232,9G 0 disk ├─sda1

Re: [CentOS] CentOS 7: software RAID 5 array with 4 disks and no spares?

2015-02-18 Thread g
On 02/18/2015 01:23 AM, Niki Kovacs wrote: Le 18/02/2015 08:09, Niki Kovacs a écrit : Apparently no spare devices have been created. So why do I only have 226 GB of disk space under CentOS, when I had roughly 650 GB under Slackware? An idea just crossed my mind. Could it be that 'df' is

Re: [CentOS] CentOS 7: software RAID 5 array with 4 disks and no spares?

2015-02-18 Thread Niki Kovacs
Le 18/02/2015 09:24, Michael Volz a écrit : md127 apparently only uses 81.95GB per disk. Maybe one of the partitions has the wrong size. What's the output of lsblk? I just spent a few hours experimenting with the CentOS 7 installer in a VirtualBox guest with four virtual hard disks. I can

Re: [CentOS] CentOS 7: software RAID 5 array with 4 disks and no spares?

2015-02-18 Thread Chris Murphy
On Wed, Feb 18, 2015 at 1:21 PM, Niki Kovacs i...@microlinux.fr wrote: Le 18/02/2015 09:24, Michael Volz a écrit : md127 apparently only uses 81.95GB per disk. Maybe one of the partitions has the wrong size. What's the output of lsblk? I just spent a few hours experimenting with the CentOS

Re: [CentOS] CentOS 7: software RAID 5 array with 4 disks and no spares?

2015-02-18 Thread Niki Kovacs
Le 18/02/2015 23:12, Chris Murphy a écrit : installer is organized around mount points is correct, and what gets mounted on mount points? Volumes, not partitions. Says who? -- Microlinux - Solutions informatiques 100% Linux et logiciels libres 7, place de l'église - 30730 Montpezat Web :

Re: [CentOS] CentOS 7: software RAID 5 array with 4 disks and no spares?

2015-02-18 Thread Niki Kovacs
Le 19/02/2015 05:43, Chris Murphy a écrit : My personal view on installers is extremely biased toward the user staying out of trouble, they shouldn't have to read documentation for a GUI installer. A *user* never has to even see - or use - an installer. A USER has to USE a computer, by which

Re: [CentOS] CentOS 7: software RAID 5 array with 4 disks and no spares?

2015-02-18 Thread John R Pierce
On 2/18/2015 11:06 PM, John R Pierce wrote: but, is that lvm integrated raid stuff available in RHEL/CentOS 6 or 7 yet ? /me scribbles postit note to self: google BEFORE hitting send

Re: [CentOS] CentOS 7: software RAID 5 array with 4 disks and no spares?

2015-02-18 Thread Chris Murphy
On Wed, Feb 18, 2015 at 3:59 PM, Niki Kovacs i...@microlinux.fr wrote: Well, maybe it's just me. I've started Linux on Slackware 7.1 and used pretty much every major and minor distribution under the sun. I know my way around Slackware, Debian, CentOS, FreeBSD, Gentoo, Arch and many more, and

Re: [CentOS] CentOS 7: software RAID 5 array with 4 disks and no spares?

2015-02-18 Thread Chris Murphy
On Wed, Feb 18, 2015 at 3:37 PM, Niki Kovacs i...@microlinux.fr wrote: Le 18/02/2015 23:12, Chris Murphy a écrit : installer is organized around mount points is correct, and what gets mounted on mount points? Volumes, not partitions. Says who? Because it's ambiguous. A partition might

Re: [CentOS] CentOS 7: software RAID 5 array with 4 disks and no spares?

2015-02-18 Thread Chris Murphy
On Wed, Feb 18, 2015 at 4:20 PM, m.r...@5-cent.us wrote: Niki Kovacs wrote: Le 18/02/2015 23:12, close, but then, for mysterious reasons, Red Hat decided to cripple it into oblivion. Go figure. One word: desktop. That's what they want to conquer next. OK well there's a really long road to

Re: [CentOS] CentOS 7: software RAID 5 array with 4 disks and no spares?

2015-02-18 Thread John R Pierce
On 2/18/2015 8:20 PM, Chris Murphy wrote: On Wed, Feb 18, 2015 at 3:37 PM, Niki Kovacsi...@microlinux.fr wrote: Le 18/02/2015 23:12, Chris Murphy a écrit : installer is organized around mount points is correct, and what gets mounted on mount points? Volumes, not partitions. Says who?

Re: [CentOS] CentOS 7: software RAID 5 array with 4 disks and no spares?

2015-02-18 Thread Chris Murphy
On Wed, Feb 18, 2015 at 9:25 PM, John R Pierce pie...@hogranch.com wrote: disks - partition(s) - mdraid devices - PVs - VG - LV - file system. phew. You might be a candidate for LVM integrated raid. It uses the md kernel code on the backend, but it's all LVM tools to create, manage and

Re: [CentOS] CentOS 7: software RAID 5 array with 4 disks and no spares?

2015-02-18 Thread John R Pierce
On 2/18/2015 9:39 PM, Chris Murphy wrote: You might be a candidate for LVM integrated raid. It uses the md kernel code on the backend, but it's all LVM tools to create, manage and monitor. The raid level is defined per LV, instead of all LV's in a VG inheriting the underlying raid. It supports

Re: [CentOS] CentOS 7: software RAID 5 array with 4 disks and no spares?

2015-02-18 Thread Niki Kovacs
Le 18/02/2015 23:12, Chris Murphy a écrit : What is NOT obvious: for single device installs, if you omit the size in the create mount point dialog, the size of the resulting volume will consume all remaining space. But since there's no way to preset raid5 at the time a mount point is created

Re: [CentOS] CentOS 7: software RAID 5 array with 4 disks and no spares?

2015-02-18 Thread m . roth
Niki Kovacs wrote: Le 18/02/2015 23:12, Chris Murphy a écrit : What is NOT obvious: for single device installs, if you omit the size in the create mount point dialog, the size of the resulting volume will consume all remaining space. But since there's no way to preset raid5 at the time a

Re: [CentOS] CentOS 7: software RAID 5 array with 4 disks and no spares?

2015-02-17 Thread Niki Kovacs
Le 18/02/2015 08:09, Niki Kovacs a écrit : Apparently no spare devices have been created. So why do I only have 226 GB of disk space under CentOS, when I had roughly 650 GB under Slackware? An idea just crossed my mind. Could it be that 'df' is reporting a wrong partition size on the RAID