similar to: Better recovery

Hi List, What this means? md: syncing RAID array md0 md: minimum _guaranteed_ reconstruction speed: 1000 KB/sec/disc. md: using maximum available idle IO bandwidth (but not more than 200000 KB/sec) for reconstruction. md: using 128k window, over a total of 2096384 blocks. md: md0: sync done. RAID1 conf printout: --- wd:2 rd:2 disk 0, wo:0, o:1, dev:sda2 disk 1, wo:0, o:1, dev:sdb2 sd 0:0:0:0:

Hi, I have setup a RAID1 using 3 devices (500G each) on separate disks. After removing one disk physically the filesystem cannot be mounted in degraded nor in recovery mode. When putting the disk back in the filesystem can be mounted without errors. I did a cold-swap (powercycle after removal/insertion of the disk). Here are the details: - latest kernel 3.2.1 and btrfs-tools on xubuntu

(Resend: message didn't show, was my original message too big? Posted one of the output files to a website to see) The point of RAID1 is to allow for continued uptime in a failure scenario. When I assemble servers with RAID1, I set up two HDDs to mirror each other, and test by booting from each drive individually to verify that it works. For the OS partitions, I use simple partitions and

excuse the newbie nature of the post, we recently inherited a linux server which has ext3 on it and we have encountered problems before being afforded the opportunity to properly educate ourselves... We had a situation where the server froze and required a hard restart. On reboot we get the following notices which were captured in the dmesg log EXT3-fs: INFO: recovery required on readonly

I have a handful of new systems where I've seen unexpectedly low disk performance on an Avago SAS controller, when using CentOS 7. It looked like a regression, so I installed CentOS 6 on one of them and reloaded CentOS 7 on the other. Immediately after install, a difference is apparent in the RAID rebuild speed. The CentOS 6 system is initializing its software RAID5 array at somewhere

Hello, I have two disks sda and sdb. One of the was broken so I have changed the broken disk with a working one. I started the server in rescue mode, and created the partional table, and added all the partitions to the software raid. *I have added the partitions to the RAID, and reboot.* # mdadm /dev/md0 --add /dev/sdb1 # mdadm /dev/md1 --add /dev/sdb2 # mdadm /dev/md2 --add /dev/sdb3 # mdadm

Hello fellow xenophiles and happy new year! I''ve documented the install procedure for a prototype server here since I found no similar document Anywhere on the net. It''s a Sarge-based Domain0 on linux root raid from scratch, using LVM to store the data for the domU mail server and its mailstore. I humbly submit my notes in the hope that they are useful to some weary traveller.

hi all! back in Aug several of you assisted me in solving a problem where one of my drives had dropped out of (or been kicked out of) the raid1 array. something vaguely similar appears to have happened just a few mins ago, upon rebooting after a small update. I received four emails like this, one for /dev/md0, one for /dev/md1, one for /dev/md125 and one for /dev/md126: Subject: DegradedArray

Many people have deleted the wrong file when the file has been accidentally lost, a lot of computer companies now have a data recovery business, but also set the price very high, not the individual can accept, in fact, data recovery is also dependent on A variety of data recovery software, as long as the master of the use of these software, we can get back some of their own deleted files.

Hi, I have 2 identical xSeries 346 with 2 identical IBM 72GB scsi drive. What i did is install the centos 4.2 serverCD on the first IBM and set the HDD to raid1 and raid0 for swap. Now what i did is get the 2nd HDD in the 1st Server swap it with the 1st HDD in the 2nd Server and rebuild the Raids. The 1st server rebuild the array fine. My problem is the Second server, after rebuilding it and

Hi, I am trying to recover data from my old system which had LVM. The disk had two partitions - /dev/sda1 (boot, Linux) and /dev/sda2 (Linux LVM). I had taken a backup of both partitions using dd. Now I am booting of CentOS live cd for system restore. I recreated partitions like previous system using fdisk and then used dd to dump all the data onto it. I would like to mount sda2 as LVM, but I

Hello, I have a weird problem after adding new PV do LMV volume group. It seems the error comes out only during boot time. Please read the story. I have couple of 1U machines. They all have two, four or more Fujitsu-Siemens SAS 2,5" disks, which are bounded in Raid1 pairs with Linux mdadm. First pair of disks has always two arrays (md0, md1). Small md0 is used for booting and the rest - md1

I have been making off site backups of my CentOS Linux servers using rsync. One of my hosting companies has suddenly gone out of business and I am unable to access the server that I was renting at that location, however, I have a complete system backup on another Linux server at a different location. My question is: Is it possible for me to load that rsync backup to another computer system that

Hi Guys, I am trying to set up a quick disaster recovery methodology for a client. It is supposed to work as follows:- All Data files , everything in /etc (except for a few hardware specific files such as fstab), all users .bashrc and .netrc files, all cron tables etc. is written to a DVD as a zipped tar file. A recovery script that unpacks this file, creates any directories required by the

On 12/5/18 11:55 AM, Benjamin Smith wrote: > The point of RAID1 is to allow for continued uptime in a failure scenario. > When I assemble servers with RAID1, I set up two HDDs to mirror each other, > and test by booting from each drive individually to verify that it works. For > the OS partitions, I use simple partitions and ext4 so it's as simple as > possible. I used my test

Greetings - Ok, I have my CentOS 7 KVM host system installed and I want to be able to boot the system from either installed drive if one of them fails. My objective is to have the following layout for the two 3 TB disks. sda1 /boot/efi sda2 /boot sda3 RAID1 with sdb3 sdb1 /boot/efi sdb2 /boot sdb3 RAID1 with sda3 The system is installed and boots from sda[1,2] and md127 (sda3 and

Greetings - I am trying to install CentOS 7 into a new Dell Precision 3610. I have two 3 TB drives that I want to setup in software RAID1. I followed the guide here for my install as it looked fairly detailed and complete (http://www.ictdude.com/howto/install-centos-7-software-raid-lvm/). I only changed the size of the partitions from what is described, but ended up with the disk

On 10/12/14 18:13, Jeff Boyce wrote: > Greetings - > > The short story is that got my new install completed with the > partitioning I wanted and using software raid, but after a reboot I > ended up with a grub prompt, and do not appear to have a grub.cfg file. > So here is a little history of how I got here, because I know in order > for anyone to help me they would

I am having some trouble with an ext3 partition, getting the following error when i go to fsck the partition: fsck.ext3: Bad mgic number in superblock while opening /dev/sda2 I tried the -b 8193 option, to no avail. Can anyone out there help me recover this partition?? ---- Michael B. Weiner Senior Systems Administrator/WebOps AmericanGreetings.com Three American Road, Cleveland, OH 44144

Hello all, I have 2 x 250GB sata disks (sda and sdb). # fdisk -l /dev/sda Disk /dev/sda: 250.0 GB, 250059350016 bytes 255 heads, 63 sectors/track, 30401 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id System /dev/sda1 * 1 14939 119997486 fd Linux raid autodetect /dev/sda2 14940 29878