similar to: recover from failed RAID

All, I had a "bad timing" event where I lost 3 drives in a RAID6 array and the structure of all of the LVM pools and nodes was lost. This array was 1/2 of a redundant (replica 2) gluster config (will be adding additional 3rd soon for split brain/redundancy with failure issues). The failed drives were replaced, the array rebuilt, all the thin_pools and thin_volumes recreated, LUKS

The setup is 4 1TB drives running RAID10. I was using the Gnome Disk Utility to verify the integrity of the array (which is a 500MB mirrored md0 and the rest a R10 md1). I believe one of the drives is bad but prior to the system going offline it showed that 2 drives were detached from the array but healthy. A reboot results in a panic complaining that not enough mirrors are available. Is there a

Hello Everyone, First time CentOS poster :) I have CentOS 4 installed on the head node of a Sun Gridengine cluster set up in a RAID. The head node has four hard drives, and I assume that drives 1 and 2 are in a raid and then drives 3 and 4 are in another raid. I was trying to expand the OS partition on drive 1 because it was full. I took drive 1 out, put it in my Fedora 8 box as a secondary

On 10/25/2016 05:41 AM, Sorin Srbu wrote: > I found a shortcut for creating a software RAID 10 ("--level=10"), device in > CentOS 6. That's not really a shortcut, per se. RAID10 in Linux is not necessarily similar to RAID1+0. The default, "near" layout is the classic 1+0 layout, but other modes of operation are supported by the RAID10 driver. > Looking at

> -----Original Message----- > From: centos-bounces at centos.org [mailto:centos-bounces at centos.org] On > Behalf Of Gordon Messmer > Sent: den 25 oktober 2016 20:54 > To: CentOS mailing list <centos at centos.org> > Subject: Re: [CentOS] "Shortcut" for creating a software RAID 60? > > On 10/25/2016 05:41 AM, Sorin Srbu wrote: > > I found a shortcut

On 10/25/2016 11:54 AM, Gordon Messmer wrote: > If you built a RAID0 array of RAID6 arrays, then you'd fail a disk by > marking it failed and removing it from whichever RAID6 array it was a > member of, in the same fashion as you'd remove it from any other array > type. FWIW, what I've done in the past is build the raid 6's with mdraid, then use LVM to stripe them

I don't think this is off topic since I want to use JBOD mode so that Linux can do the RAID. I'm going to hopefully run this in CentOS 5 and Ubuntu 12.04 on a Sunfire x2250 Hard to get answers I can trust out of vendors :-) I have a Sun RAID card which I am pretty sure is LSI OEM. It is a 3G/s SAS1 with 2 external connectors like the one on the right here :

We discussed using the top bits of the chunk type field field to store a number of redundant disks -- so instead of RAID5, RAID6, etc., we end up with a single ''RAID56'' flag, and the amount of redundancy is stored elsewhere. This attempts it, but I hate it and don''t really want to do it. The type field is designed as a bitmask, and _used_ as a bitmask in a number of

i simply want a set of numbers in a vector which: in the vector v, i want the numbers be (x[1]*x[2]*....*x[100], x[2]*x[3]*...*x[100], x[3]*x[4]*...*x[100],...,x[98]*x[99]*x[100], x[99]*x[100],x[100]) so there should be 100 elements in the vector. here's how i do it x=rnorm(100,0.5,0.2) v=prod(x[(1:100):100]) but it turns out failed as it says there are 100 elements in the expression, but only

Hello I have a CentOS 6.6 Server with 13 disks in a RAID 6. Some weeks ago, i upgraded it to 17 disks, two of them configured as spare. The reshape worked like normal in the beginning. But at 69% it stopped. md2 : active raid6 sdj1[0] sdg1[18](S) sdh1[2] sdi1[5] sdm1[15] sds1[12] sdr1[14] sdk1[9] sdo1[6] sdn1[13] sdl1[8] sdd1[20] sdf1[19] sdq1[16] sdb1[10] sde1[17](S) sdc1[21] 19533803520

hi y'all, ...realize that maybe I should go to kde w/this but then, I do run centos on my systems soooo... kk I like to run kde's file manager in super user mode. On one of my systems, it's acting it's ass...as my default editor I do use kwrite and I normally set that up to open any text type file w/that but for some reason, on this one certain system, I can't navigate among

Did you restart the crontab service after the change ? If not, crontab wont be aware of the changes. Nassri > rado wrote: > > for some reason, crontab is not picking up a job here > listed. I, for > > one see nothing wrong w/it as I have been running approx the same > > basic crontab for well over a year now. I have just put this box on > > line about a week

Hi All, Playing with Samba4 RC6 and its working amazing in my test network as a DC. One thing i am not clear with is who to join a file server to it. on the file server do i install samba4 the same way and run: samba-tool domain join member ... i did try net join ads but it seems it didnt compile in ads then i saw some people saying this was not the way to do it. Soooo i just want to get a

> > Oh dear. Mr idealist has had his day spoilt again. > You already showed yourself unworthy of getting help from people here. In fact, you are soooo smart that I don't even understand why you came here in the first place... Why don't you just go and consult yourself about your problems?

Mark Borgerding wrote: > Each math operation introduces some error. So the fewer operations > required, the fewer roundoff errors occur. This leads to a happy > correlation between efficiency and accuracy. The more important problem is addition of numbers that differ in magnitude. Roundoff error is soooo small compared to that ;) <p>Segher --- >8 ---- List archives:

Hey All, First time on these forums. Thanks in advance. Soooo... I have a process that was functioning well before the 2.14 update. Now the HoltWinters function is throwing an error whereby I get the following: Error in HoltWinters(sales.ts) : optimization failure I've been looking around to determine why this happens (see if I can test the data beforehand) but I haven't come

Hello all, I ran across this link from slashdot and it looks like it has a lot of potential: http://www.pjrc.com/tech/mp3/ It is a built-it-yourself kit project for an mp3 player. Although there are still some things that need to be refined, this could be one path to getting a cheap Vorbis hardware player. As I said, it is currently set up for mp3 files, but the firmware is supposedly

Hi, after migrating to a new hardware (which is soo soooo mutch faster than the old one) I start to think about migrating from mbox to maildir. I'v read some docs and wikies and some questions are unanswered or maybe I skip the answers: - Is it possible to migrate the mboxes "silent" e.g. if a user logs in the mbox is converted? - regarding the Namespaces wiki article, it is

So I''ve sort of come to the conclusion that if I wanna get stuff done, I need to either A) Find some dang money and pay people to do it or B) Do it myself. I''m opting for B. Soooo...now I''ve got some programming/technologies to learn. I''m self-employed and I can afford to take a month (or 2) off to totally immerse myself in this and learn how to do it.

hi, Here's an interesting one... If I view the files on my Samba server, the file size is reported differently depending on if I'm looking from WinXX or Win2k. That is, if I do a 'properties' on a file with Windows ME for instance, I see 'Size' and 'Size on Disk' numbers that seem reasonable. Size on Disk is slightly larger which seems reasonable. But if I look