For the troubleshooting of one server (having 73Gb 3HDD, Raid5 of 140Gb). When I check in the Array The Logical Vol Appears as One HDD not Online
0 HDD1
1 HDD2
2 HDD3
0 HDD not showing Online, When we set it for Oneline & save, After restarting it will go off.
I have a 1TB SATA2 disk in my home Debian server. I'm planning to buy two more drives (1TB too) in order to build a RAID5. Does it make any difference if I use the SATA2 drive with two SATA3 drives? I'm getting the SATA3 with more cache (64MB) at the same price than the old one and I'm not sure if the SATA version or the cache size can impact in the normal behavior of a RAID5
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I have no drive failures but just need to recreate a raid5 set as the next free MD disk number. Originally I built a temp OS of debian on a single drive and had 4x2TB drives in a raid5 software array (MD0) this worked fine and allowed me to move all data to it, and remove our old fileserver. I have now pulled out the 4 x 2TB Raid 5 drives and created a new OS on two new 80GB drives, partioned as follows,
MD0 is now 250mb Raid1 as /boot
MD1 is 4GB Raid1 Swap
MD2 is 76GB Raid1 as /
If I turn off and push back in the 4x2TB drives I cannot see a MD3. I presume I would need to create a MD3 from these 4 drives but I dont want to mess things up as its live data. So im here asking for help, or a bit of hand holding to get it done right.
PS - Its a Debian Lenny 5.0.3 Raid1 fresh install replacing a Debian Lenny 5.0.3 on a single disk.
I am trying to build a file server with RAID 5 over a couple of 1TB HDDs, to serve about 10 client machines using Ubuntu Server. I already own a 22-port switch: HP ProCurve v1810G-24 Switch (J9450A), which I am assuming will do the job. And for the actual server I am thinking of buying: HP ProLiant DL120 1U. Will this hardware suffice, or am I missing something important to get the whole thing running?
View 9 Replies View RelatedI was wondering if anyone uses kmymoney? I am trying to setup an online account but I get errors when I try to map to an online account.my bank is M&T bank and quicken 2007 is no longer supported.
View 2 Replies View Relatedi am looking for ideas to set up a calender/ scheduling system (or online service) for a doctor's office to set up patient appointments. i would like to set it up so that only the doctor, technician and receptionist can access it and set up appointments from 3 different computers.
View 2 Replies View RelatedI cant seem to get my RAID 5 (consisting of 8 1tb hard drives) assembled for some reason and I have no idea why and cant find any solutions online. Ill go ahead and show what my problem is:
here is all my hard drives:
Code:
server:~$ sudo fdisk -l
Disk /dev/sda: 10.2 GB, 10242892800 bytes
255 heads, 63 sectors/track, 1245 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x0004f041
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So as you can see the array for those last four look fine however for the first four it marks the last four drives as faulty for some reason. I am kind of clueless to do from this point on honestly, I have data on this array that I'd really like to save.
I would like to install pymedia on my ubuntu 9.10 karmic distribution, but I am having a bit of a hard time doing that.I managed to install all the libraries (lame, libogg, libvorbis etc.) but when trying to run 'python setup.py build' I get an error (Shown at the end).I found on the interwebs that it may have to do with the version of gcc c++ compiler running (currently gcc-4.4) and that it only works with gcc-3.x. Therefore I downloaded gcc-3.4 (from the old jaunty archive), and with this one still no joy.NebelhomP.S. I am not a complete newcomer to linux and python but I am not an expert so it may happen that I ask questions with a very obvious answer.
Code:
nebelhom@nebelhom-desktop:~/pymedia-1.3.7.3$ python setup.py build
Using UNIX configuration...
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I've had software RAID 5 arrays for a while now, so they were set up before a RAID array could be partitioned. I had two separate RAID 5 arrays on the same set of drives. One was for / and the other for /home. I moved the / to an SSD and figured I'd expand the other RAID array by failing a drive, repartitioning it then adding it back in. After repeating for the remaining drives, I could then expand the RAID array to use the full size of the drives.
Partway through the second drive being added back in, the RAID array stopped with a kernel error. The drive I was adding and another drive both showed as failed. I couldn't restart the array so I copied the failed drive (Seagate's SeaTools did show it as faulty, but without SMART being tripped) to a new one and tried again. dd_rescue reported the drive copied correctly but I still couldn't restart the array.
So I tried the old standby of recreating the array. This allows me to start it but the ext3 file system won't mount. So I then tried my script (listed in another thread) to try every combination of drives to assemble the array and mount the file system. Still no luck.
I broke down and spent some $$ on a new server for home use. I mostly do technical research and testing, plus store movies and music. My interests are mainly in the IET iscsitarget performance.
Server system consists of an AMD Phenom II 550, 8GB RAM, 1x 80GB system partition, and a LVM-vg0 software raid5, running Ubuntu 10.04 server x64.
The vg0 consists of 3 x 500GB 7200RPM SATA drives (mdadm) sliced up with 100GB for VBox VMs, one slice is an iscsitarget for a Windows 2k3 server, and another slice iscsitarget for a desktop.
With this setup, the win2k3 server is booted from a .vdi image stored on the ext4 lvm raid5 vg0. Here are the DiskTT stats.
Code:
However, with the Win2k3 server and the MS iscsi initiator I get using DiskTT:
Code:
The speeds are incredibly slow considering a non iscsi connection is screaming fast in comparison. Any ideas?
All nics are 1GB.
Here is my ietd.conf
Code:
So here it is, I have a fileserver setup on Ubuntu Server 9.10 AMD64. In this system is 4 1.5TB SATAII drives. They are configured in RAID5 using MD. Now everything is working beautify, except when you need to create a directory. When you do, the system hangs for about 30 seconds. The I/O wait in top jumps up as well. Then the directory is created and everything works once again.
The odd part is it is only Directory creation that does this. I can copy, move, download and stream files off the server perfectly. I am baffeled as to what is causing it. It might be related to the fact that I expanded the array from 3 to 4 drives, it was after that, that I first noticed the problem.
how to recover A mounted RAID5 data???
View 5 Replies View RelatedI know you can fail and then remove a drive from a RAID5 array. This leaves the array in a degraded state.
How can you remove a drive and convert the array to just a regular, clean array?
I've got a new Ubuntu 10.04 server install with a new 3 disk RAID 5. The boot disk is separate, not part of the RAID. I was trying to practice what I would do if a disk died to recover the RAID, so I unplugged one of the three disks. The machine now just hangs on startup. It shows fsck at the top of the screen but doesn't got anywhere from there. If you press a key it shows the Ubuntu splash screen. If I plug the disk back in, everything boots up normally. So, my question is, how do I get the machine to boot with one of the RAID members missing? I know I can recover it using the Live CD, but it would be nice to be able to get back into the machine without the CD.
View 9 Replies View RelatedI'm a light linux user over the last couple of years and I decided to built a HTPC/NAS device.
Setup:
40gb ide -> usb boot drive
3x2tb sata (4k Sector) drives
I've got another 2tb identical drive but it's holding data that is going to be copied to the raid after it's up and running and then be 'grown' into the raid array to yield a final 5+tb array. I tried doing a disk util raid array and it ended up failing after reboot due to it using the /dev/sd* designations and they swapped. I have no idea how to do the UUID version, my googlefu and practical guide to ubuntu. So I decided to do it manually in order to also fix the sector issue as disk util wasn't formatting them correctly and once formatted wouldn't let me create a raid array from the discs.
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I have a 2-quad core Intel Xeon system that I have set to RAID-5. I then attempted to install Ubuntu Server. When the message came up about enabling SATA RAID, I said NO because I have hardware RAID installed on the box. So I completed the install, and when I go to view the RAID configuration using the Intel Matrix Storage Manager during boot, it says:Volume0, Level: RAID5(Parity), Status: DegradedWhen I install enabling SATA RAID, I get a message asking me to "configure iSCSI volumes". When I click on that, I get another message: Loginto iSCSI targets. When I click on that I get another message: "Enter an IP address to scan for iSCSI targets". I have no idea what to put as thye iSCSI target portal address!
View 5 Replies View Relatedis there a way to set-up a file system, where you have multiple nodes (PC's) linked to one storage pool? ZFS seems to support this idea with multiple disks on one node, but could you connect multiple nodes in this manner?
View 3 Replies View RelatedI am currently looking for a file system that needs to be distributed over several nodes and need redundancy, like RAID5, and the ability to grow if needed, like LVM. Also not all nodes are going to be located in the same data center, but I guess that's not that important as long as the connection between DCs is sufficiently fast. I am currently looking at AFS, Coda, GFS and OCFS to see if they have what I need.
Edit: I just figured that it may be better to have the RAID5-like setup within one location, and have RAID1-like mirroring between the locations. That would probably better for performance, right?
I am setting up a new server and am in the midst of testing RAID. This is an Ubuntu 9.10 server. RAID1 (/dev/md1) is spread across 12 one-terabyte SCSI disks (/dev/sdi through /dev/sdt). It has four spares configured, each of which are also one-terabyte SCSI drives (/dev/sdu through /dev/sdx). I have been following the instructions on the Linux RAID Wiki ([URL]....
I have already tested the RAID successfully by using mdadm to set a drive faulty. Automatic failover to spare and reconstruction worked like a champ. I am now testing "Force fail by hardware". Specifically, I am following the advice, "Take the system down, unplug the disk, and boot it up again." Well, I did that, and the RAID fails to start. It outright refuses to start. It doesn't seem to notice that a drive is missing. Notably, all the drive letters shift up to fill in the space left by removing a drive. The test I did was to:
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Is removing a disk from the bus a reasonable test in the first place? Meaning, is this likely to happen in a production environment by other means than a human coming by and yanking out the drive? Meaning, is there a hardware failure that would replicate this event? Because, if so, then I don't know how to recover from it.
I have an Acer Altos EasyStore SATA NAS box that hung, the only way to reboot was to crash the system (unplug it). Upon reboot it was not recognising the hard drives (it wanted to do a destructive reinitialize). Most of the importent data was backed up, however some was overlooked and we'd quite like to get it back. Removing the disks and placing them in a PC with enough SATA bays to cope, and booting with a live linux distribution (System Rescue CD) I can see the 4 drives are not suffering hardware error and that the original partions exist. Using mdadm I can assemble the Arrays without error (seems to be three but the only one I am concerned with is the RAID5 array of about 3TB). /dev/m1p2 mounts as a loopdevice once an offset is entered. In turn this mounts as an XFS parition. However despite df showing the partition almost to be full. ls -l or ls -a on the mount point shows it to be empty!
I got thusfar using a translation from a German language forum, unfortunately I only speak a little German, and the only other English language post on a simlilar matter I found within that site had no replies. The next step was to unmount loop, then run xfs_chack and xfs_repair on the file system. xfs_check returns that there is are a few dir size and offset errors along with link count mismatches. This I would presume normal for a file system that has become slightly corrupted. xfs_repair (version 3.0.3) gets as far as Phase 3 it finds and corrects zerolength entries, offsets on directories and bogus inode numbers. However the final two lines are:
Code:
realloc failed in blkent_append (2671166480 bytes)
zsh: segmentation fault xfs_repair /dev/loop1
A search on the error missing out data size just returns code to generate it, is anybody able to explain what it means? Also remounting hard drive, ls and varients of still do not return anything. Am I missing some thing (root I am logged in with now would have different credentials presumably to root on the NAS box, so how do I get around this)?
I recently upgraded a server from Fedora 6 to Fedora 14. In addition to the main hard drive where the OS is installed, I have 3 1TB hard drives configured for RAID5 (via software). After the upgrade, I noticed one of the hard drives had been removed from the raid array. I tried to add it back with mdadm --add, but it just put it in as a spare. I figured I'd get back to it later.Then, when performing a reboot, the system could not mount the raid array at all. I removed it from the fstab so I could boot the system, and now I'm trying to get the raid array back up.
I ran the following:mdadm --create /dev/md0 --assume-clean --level=5 --chunk=64 --raid-devices=3 missing /dev/sdc1 /dev/sdd1I know my chunk size is 64k, and "missing" is for the drive that got kicked out of the array (/dev/sdb1).That seemed to work, and mdadm reports that the array is running "clean, degraded" with the missing drive.However, I can't mount the raid array. When I try:mount -t ext3 /dev/md0 /mnt/fooI get:
mount: wrong fs type, bad option, bad superblock on /dev/md0,
missing codepage or helper program, or other error
In some cases useful info is found in syslog - try
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I need to split one of my big partitions without data loss while the server is running,here is my df -h output:
Filesystem Size Used Avail Use% Mounted on
/dev/pve/root 95G 756M 89G 1% /
tmpfs 1003M 0 1003M 0% /lib/init/rw
udev 10M 2.7M 7.4M 27% /dev
tmpfs 1003M 4.0K 1003M 1% /dev/shm
/dev/mapper/pve-data 356G 52G 304G 15% /var/lib/vz
/dev/sda1 504M 32M 448M 7% /boot
I want to make a little partition from /dev/mapper/pve-data with size of 50 GB while the other files on that partition remain untouched,
We are trying to set up a NIS server on a CentOS system. We need to have a NIS server which can provide NIS authentication to a couple of clients. We are practically new to all this stuff.
Just googled to find some ideas about installing ypserv and ypbind and portmapper. We did all that and also started them successfully. But now the clients are not able to join to the NIS domain . The error log states "YP_DOMAIN NOT BOUND".
I guess we have not entered the /etc/yp.conf, /etc/hosts files properly. Please let us know the detailed steps to setup a NIS server .
Also, please let us know what entries should go into the different /etc/<file_names>? What is meant by HOSTNAME in the /etc/hosts file?
Is there any other files which need to be changed? Are we missing any steps?
Also to add-on, while executing the ypinit command we faced the following error:
At this point, we have to construct a list of the hosts which will run NIS servers. localhost.localdomain is in the list of NIS server hosts. Please cont inue to add the names for the other hosts, one per line. When you are done with the list, type a <control D>. next host to add: localhost.localdomain next host to add:
The current list of NIS servers looks like this:
Is this correct? [y/n: y] y
Error running Makefile.
I have installed Rocks cluster and Ganglia to monitor the system. When I try http://localhost/ganglia its working fine. But, when i do http://myipaddress/ganglia its not working.
View 2 Replies View RelatedI am kinda stuck while providing solution for the above problem. I have achieved the fail over using keepalived but not sure how can we replicate the data from one server to other seamlessly and have them in sync with each other. My prime requirement for this project is end user should not notice the fail over and replicated copy of data should be available on the secondary as well.
View 3 Replies View RelatedI'm trying to get my simple home web server on the internet but I cannot seem to make it work. I've set up a LAMP stack to host my website and it works perfectly on my local network (accessing from [URL].. but not from the internet. To test it for now before I set up a dynamic dns service, I am trying to access my website via my WAN IP address from within and outside of my home network (ie http://69. When I do this, I get a "taking too long to respond" message, instead of a host not found or 404 or something of that nature. My box has a pentium 4, 2 gigs of ram, and is on a DSL line so I have a hard time believing anything is "taking too long". Here are the software packages I've installed:
-ssh
-apache2
-php5
-mysql
-phpmyadmin
-proftpd
-mediatomb
All of these packages work perfectly fine from within my home LAN, but NONE work outside of my network.
Other configs:
-My router forwards traffic on port 80 to my server
-My iptables allow incoming traffic on port 80
-My ISP, AT&T, does not block port 80 (or any port, according to various online sources)
Perhaps Apache is not configured correctly? What apache config options would be related to this problem?
I've previously tried a similar setup with the dyndns service fully configured (I followed a very thorough guide down to the t - wish I had the link it was excellent), but to no avail - I got the same "too long to respond" accessing from my domain name. I understand that there are a multitude of causes for this problem, so what can I do to narrow down the source? "How to set up a LAMP server" guide, because all of them have lead me to where I am now.
I have a LAMP server setup with AjaXplorer that runs locally with a static IP address. All you have to do, if you're connected to our network, is go to code...
Now I want to take the next step and make it available on the internet, so that I can access my files from anywhere in the world.
How do I go about doing this, and what precautions do I need to take?
I want to setup a FAI server for which I was looking for the best method of mirroring the Debian Lenny. I want to setup a local mirror with the best method available for mirroring. If it is ftpsync, please provide me some best ways of doing it. I tried ftpsync mirroring but that was not getting properly working due to insufficient I want this mirror to be accessible in my FAI setup so that I can start the installation on multiple machines and start the updates and package installation to be done from the same local mirror.
View 1 Replies View RelatedHow to setup a SMS server using Linux, also want to know the appropriate Linux distribution to setup a SMS server.
View 2 Replies View Relatedtried to do a search for this but it's a bit of a tricky thing to search for. Basically what I'm after is a solution for my work so I can stream a online radio station down to 1 server, and then have the clients stream the audio from that. Anyone know if that's possible?
so:
Online Radio >> Server >> Clients
Any linux or winblows solution would be fine, I'm just trying to look for a solution that would cut down on the internet bandwidth usage, but still allow uses to listen to online radio.