Fedora Servers :: FC10:Raid5 Fails After Grow Operation
May 7, 2009
Here's the deal: I had a nice little fileserver running under 2.6.27.21-170.2.56.fc10.x86_64.
3 disks in raid 5 ext4fs, then I thought..."hey I'm a greedy bastard..I want another drive!!
So I get it..do a normal mdadm --grow...after around 1100 minutes .. FINISHED!..whee..happy...
I decide to do a upgrade to 2.6.29.2-52.fc10.x86_64 to get the fix for growing the ext4..
reboot...
Code:
md: bind<sda3>
md: sdc3 has same UUID but different superblock to sda3
md: sdc3 has different UUID to sda3
md: export_rdev(sdc3)
md: sdd3 has same UUID but different superblock to sda3
I have a rack of four 1TB drives all partitioned identically with three primary partitions. On each drive
- the first partition is only 64MB; - the second is a large 900GB partition and - the last holds all the remaining space
mdadm has been used to set up /dev/md0 - RAID1, comprised of /dev/sda1 and /dev/sdb1 /dev/md1 - RAID5, comprised of /dev/sda2, /dev/sdb2, /dev/sdc2, /dev/sdd2 /dev/md2 - RAID5, comprised of /dev/sda3, /dev/sdb3, /dev/sdc3, /dev/sdd3
OK, so it was a silly mistake to make - but I am now need to increase the size of /dev/md0. My thinking is to reduce the size of md1 so that I can grow md0.
On md1 I have two logical volumes. I've successfully reduced the size of the volume so that I can reduce the size of md1. Now I'm at the nervous stage; I can find little written on the topic of shrinking RAID5 arrays - and even if I do this I'm unsure if I can move partitions around to regain the space I so desire.
I have fedora 10 installed and when my monitor is turned off the X session fails to start because it can not probe for settings. Is there a way to hard code the settings for x instead of letting them assign dynamically on boot?
I have a machine running Ubuntu Server 9.10 installed on an 80GB RAID1 disk. The system has two arrays (one data, the other backup), each of the same size in RAID6 with ext4 fs, connected to separate 3ware 9690 controller cards. I had to increase the size of the arrays from 8TB to 12TB. No problems - added the drives, migrated the new disks into the array, rebooted the server, and everything is visible. I unmounted the drives and then attempted to grow the partition (it's a single partition), starting with the backup array, using gparted. It sees the unallocated space but when I try to grow the partition into the unallocated space it fails. Here's the gparted error details:
I just tried to update to kernel 2.6.27.15-170.2.24.fc10 (x86_64) at the suggestion of the gnome update widget, and the process hung. A bunch of other things were updating at the same time, many of which were related to audacity or wine.
I'm not sure just what was being updated, because the option to review which updates are available does not work - when I click on it, nothing happens, but when I take the other choice (install all updates), I take pot luck. It would be nice to be able to choose which programs to update, and to be able to upgrade the kernel independently, but I don't seem to be able to do that at the moment.
Since 2.6.27.19-170.2.35.fc10.x86_64, dhclient wlan0 doesn't seem to work any more.
However, bizarrely, dhclient eth0 does (to the same D-link wireless router).
The AP shows connected - tail /var/log/messages
No working leases in persistent database - sleeping.
WINXP connects just fine. This (B43) has worked nicely ever since FC10 came out, and I was able to use the WiFi at all kinds of places on a recent trip. Other than a couple of yum updates, I don't think anything else has changed since. Other devices on the wlan are getting their DHCP requests satisfied correctly.
Is anyone else having this problem since about a week ago? Perhaps there's something really obvious I'm missing. I can manually assign an IP address to wlan0, manually edit the routing tables and edit /etc/resolv.conf, and then Wifi seems to work OK, so it doesn't seem to be b43 itself unless it is dropping DHCPOFFERS. If this isn't a regression, does anyone have any tips about how to debug this?
just as the title states i need to upgrade my os from fc4 to fc10 first let me say i have no physical access to the box. all i have is root ssh access to it. So i need to know the best way of upgrading that will be safe. before i do the upgrade the server will be backed up so i will not loose any files. if the upgrade fails the data center will reload the os with what i need on it. but i would rather not have to format.
I want to backup my apache website using tar. I want to make sure all the permissions and such stay the same so that if I restore a website, it's ready to go exactly as it had been.I am using the following command and would like to know if there is anything else I should neeed to do?
tar --xattrs cvzf backup.tgz /path-to-webserver-files
Now my other question is since tar doesn't store absolute paths, when I run the restore I have to be in the root directory? In another words if I run the command in a user directory will tar do something retarded like encode the paths as ../path-to-webserver or will it just be path-to-webserver so that when I run the restore from the / folder it will automatically go into the right place?
So my server running FC4 died last night and I decided to go ahead with the long-awaited upgrade to FC10 while I was rebuilding my server. I use my server for a number of things including, but not limited to: router, firewall, web server, mail server... I have a typical configuration process that I have followed since before fedora, and it has worked well for me up through FC4, but my usual config process doesn't work on FC10.
First of all, I don't want SELinux running, I didn't see an option to not install it during the FC10 setup, so how to I properly disable or uninstall it afterwards? Second, I was unable to even configure the server to route traffic from my internal network to the web, here's the process I usually go through for this:
[Code]...
I don't have a static IP from my ISP, so I'm not quite sure how to add the default route. I think I need to do something like "route add default gw xxx.xxx.xxx.xxx eth1" where eth1 is my external NIC, correct?
What else do I need to do to route traffic? I noticed that I wasn't even able to ping my server from the internal network even though they are on the same subnet, my server's internal NIC has an address of 192.168.7.1 and my computer on the network has an address of 192.168.7.2. If I can get this going to I have internet access again at the very least, I can move forward with the web server, email, etc.
I recently setup a file sharing server with FC10 running Samba...
I got it running perfectly and it ran great for a few weeks. I was working on the machine today and tried to reboot it and noticed that it was stuck on FC10's new boot screen. I pressed the esc key and saw that the boot process was stuck on the smb service...
I don't get any errors and the machine doesn't freeze up or anything, it just hangs on the smb service and won't continue with the boot...
Is there anyway that I can get the system to skip the smb service so that I can get into the system? I don't know what's changed or what's causing this sudden hang in the system at boot.
I tried the ubuntu live CD to attempt to go in and edit the /etc/rc5.d scripts to try and skip the smb service start but I am not sure where to look for it...
I made a big mistake on my FC10 machine-while trying to resolve a way to install vlc- I wrote the following command:"yum erase rpm lib".After restarting the machine fedora did not load... (might be funny- I laughed...).Do you know of a way top recover from this state? (I have the liveCD disk),
I have a lab of 10 computers with ips from 192.168.1.120 to 192.168.1.130 the server's Ip is 192.168.1.116When I am on client computer I type the server's Ip address on the browser and it works. All i want is that instead of entering my servers Ip I could just enter an address like: example.lan
I'm having a problem getting BIND to start after doing the FC10->FC11 upgrade. Others have been reporting some bad symbolic links, but this isn't that problem. I've searched the forums here, but I don't see anything like this anywhere.
I'm relatively new to Linux, but willing to take a plunge and climb the steep learning curve! I've recently installed Fedora 10 on a spare box I'd like to have running in the lounge by the TV as a TV recorder. Before starting out with MythTV, I would like to get the box running the basics... and hit no major snags with display / audio drivers. I've finally managed to connect to the box via VNC from my macbook over the wireless network. The Apple standard client is slow over wifi, so have started using 'Chicken of the VNC' as the client. At the server end, I intalled vnc-server via yum. I've also tweaked things in ~/.vnc/xstartup so that my default window manager over vnc is gnome.
SELinux is enable on my system. When i try to carry out the below operation it fails, giving me te error below.I disable selinux before i was successful, but who can help me out to carry this excercise with selinux enable.
[root@wisetech ~]# mount /dev/cdrom /media mount: block device /dev/cdrom is write-protected, mounting read-only [root@wisetech ~]# cp -ar /dev/cdrom /media/. /inst
I've got a RAID5 array that doesn't want to automount after rebooting. I'm pretty familiar with linux, RAID, and mdadm, and up until now, I've had the RAID5 array working just fine. However, whenever I reboot, the array drops off and won't remount until I manually assemble and then mount the thing. I find this odd because I had everything automounting just fine back in 10.3, and even in 11.0 (I think - not sure on that). Currently, things are working, but I'd really like to not not have to type
Code: mdadm --assemble /dev/md0 /dev/sda1 /dev/sdb1 /dev/sdc1 /dev/sdd1 followed by Code: mount /dev/md0 /mnt/data every time I reboot. Even including this in some sort of start-up script seems kludgey... Surely there must be a more elegant way of automatically bringing up a RAID5 array after booting? I'm not sure what information you'll need, so I'm going to go ahead and include as much as I can anticipate...
My box has a raid5 array (mdadm) with everything in it (/boot and /) but swap that is actually spread across the 4 drives. I had ubuntu 10.10 installed (amd64) with grub1, when I upgraded to natty (11.04) it automatically installed grub2. Well boot fails, it always goes to grub rescue no matter what happens. I've installed and reinstalled grub2, and boot always fails with:
"error: file not found".
In grub rescue I can see that md0 is actually available, an "ls" to (md0)/boot succeeds but the strange thing is that an "ls" to (md0)/boot/grub prints nonsense, as does an "ls" to (md0)/boot/usr/lib/grub/i386-pc/. When I try to load the required modules for boot (linux raid etc) in grub I also always get a "file not found error" (I fsck'd md0, which says everything's fine). I have installed the latest version of grub2 and executed grub-install in all four drives.
Using 11.04. Every time I install a program (any source - software center, Update manager ) at the end of the installation message it says operation failed. But ... here is the big but. The software gets installed.
I've installed the epkowa backend for the V300 scanner. Communications from Chuck56 and Alien Bob were helpful. The core, data, and esci-interpreter packages are installed, epkowa.conf and dll.conf seem properly configured. sand-find-scanner, lsusb, scanimage -L all report correctly. xsane works normally, and iscan initializes, and produces a preview image. scan however fails citing 'not enough space for operation,' although GBs are available. When iscan is closed, these errors are reported:
libpng warning: Application was compiled with png.h from libpng-1.2.8 libpng warning: Application is running with png.c from libpng-1.4.5 libpng warning: Incompatible libpng version in application and library
My system is running Slackware v. 13.37, Linux v. 2.6.37.6-smp.
3 new 1.5TB HD. 1 used 1.5TB hd with 980MB of data. I want to set up a raid 5 with a hot spare. I have music, pictures, videos, and movies (About 2.8TB worth). I have had a mismatch of drives previously, 250GB, 2 320GB, 500GB, 2 1TB and now a 1.5TB all with data. I have removed the one 250 and 2 320s and put the data on the 1.5TB that is currently installed.
What I would like to do is create a raid5 with the three new 1.5TB HD's, copy the data over from the currently installed 1.5TB and then grow or add that drive as a hot spare. Or just add it and then add another 1.5TB down the road as a hot spare don't know for sure.
In addition since I have 2 1 TB drives, I could add 2 more (Good deals on 1 TB drives right now) and have a total of 4 1TB drives. Could I have 2 raid5's (4-1TB's and 4-1.5TB's)in two separate arrays? I really do not know if that makes sense or not but here comes LVM. I am tired of managing my HD space and since i have multiple folders (Movies, music, pictures, videos) and within the movies folder I have R, G & PG folders for the ratings of the movies. (Pwd protect the R so the kids can't get to it) So with LVM installed with the Raid5 I should be able to create my folders and just keep adding data and not worry about moving folders around when I grow the storage by adding new drives. Is that correct? Maybe someone could point me to a how to.
Also, if I create 2 arrays (And I need to know so I can order the 2 additional 1TB drives), then I could put all the music, G and PG content on the one array and all the R and spicy stuff on the other and password protect it.
I recently installed a new home backup server with Ubuntu 9.10 x86_64 using the alternate CD. I used the CD's installer to partition my disk and created a software RAID 5 array on 4 disks with no spares. The root file system is located outside the raid array.
At first the array performed nicely but as it started to fill up, the io performance dropped significantly to the point where I get a transfer rate of 1-2MB/s when writing!
Created my own file server/nas, but get stuck in a problem after couple of months. I have a server with 4x 1,5tb disks, all connected to sata ports and 1 40gb ata133 disk running ubuntu 9.10 x64 amd. I've created a raid5 array using mdadm. It all worked great for couple of months but lately the raid5 array is degraded. disk sdd1 is faulting every few days. I have checked the drive but it is fine. If I re-add the disk and wait for 6 hours my raid5 array is all fine again, but after a few shutdowns, it is degraded.
my mdadm detail:
Quote:
root@ubuntu: sudo mdadm --detail /dev/md0 /dev/md0: Version : 00.90 Creation Time : Mon Dec 14 13:00:43 2009 Raid Level : raid5
I have ubuntu server 10.04 on a server with 2.8ghz 1gb ddr2 with the os on a 2gb cf card attached to the IDE channel and a software raid5 with 4 x 750gb drives. On a samba share using these drives I am only getting around 5 MB/s connected via wireless N at 216mbps and my router and server both having gigabit ports. Is a raid 5 supposed to be that slow? I was seeing speeds of anywhere from 20-50MB/s from other people and am just wondering what i am doing wrong to be so far below that.
I've built a server with (intentionally) very low-power components. The motherboard uses a Via C3 CPU running at 700MHz. The server has 512MB of RAM and I'm running 8.04 Server Edition (no GUI). This is purely a file server - not a lot of daemons started (except the defaults) -- no web server, etc. Just NFS, Samba and Open SSH (for remote administration). I'm not sure how much free RAM it has (it's down at the moment).
Is the RAM/CPU going to be inadequate for running software RAID5? I've done some big rsyncs and even without RAID, this thing is pretty slow. I'm not terribly concerned about the write speed, but if the read performance is going to be inadequate for playing (not streaming - just playing) a 720p MKV movie over my LAN, then I need to rethink this.
As the title says, I have a failed RAID5 hard drive. What's the easiest way I can go by replacing it? I've seen many ways to do this, but I would like to know what other people are saying about this, and see how you would do it.
My fileserver initially had 3 1TB drives in RAID 5 configured with mdadm as /dev/md1. (System root is a mirrored raid on /dev/md0) I went to go add a 4th 1TB drive to /dev/md1 and grow the raid 5 accordingly. I was initially following this guide: [URL] but ran into issues on the 3rd and 4th commands. I've been trying a few things to remedy the issue since, but no luck. The drive seems to have been added to /dev/md1 properly, but I can't get the filesystem to resize to 3TB. I also am not entirely sure how /dev/md1p1 got created, but it appears to be the primary partition on the logical device /dev/md1. Relevent information:
The filesystem originated as ext3, I believe its showing up as ext2 in some of these results because I disabled the journal when doing some initial troubleshooting. Not sure what the issue is, but I didn't want to blindly perform operations on the filesystem and risk losing my data.
I have software raid 5 array, each time I reboot my server, I have to rebuild array again. Rebuilding array takes too long. I am using ubuntu server 10.10.
I just setup a server using ubuntu server edition also installed apache, php, mysql and phpmyadmin.. when i try to setup FTP permission via winscp i get the error /var/www/phpinfo.php: Operation not permitted. ans so on for other files present there..
