Is SUBJ possible? For example: I have 1 disk with ext2 (ext3) partition and information written on it. I want to make a mirror using the disk. I put this one and another unformatted one into a server, create an appropriate /etc/raiddraive, and do mkraid. Shall I get a mirror witn intact information from the first disk? If not, are there any ways to do so?
View 1 RepliesI have a computer with XP & Ubuntu dual-boot. My arrangement is like this:Physical hard drive #1, (NTFS XP partition, ext3 Ubuntu partition)Physical hard drive #2, (NTFS documents partition)The Ubuntu partition is always mounted, but the other 2 have to be mounted every-time I boot up. How can I have these other 2 partition always be mounted
View 4 Replies View RelatedI am searching for an interprocess communication that is platform and language independent and is two way communication among different processes and the most important thing is the ipc should have the ability to store data until the receiver receives it.
View 2 Replies View RelatedI have, in the past, installed windows along side my main OS, Ubuntu. Every time I install windows, the grub ends up disappearing and I have always had to re-install Ubuntu to get the grub back. I have a lot of files and it would take a while to back up so would anyone be so kind as to tell me if there is a way to preemptively preserve grub so it doesn't disappear after I install XP on half of my hard drive?
View 4 Replies View RelatedI use basic ssh and scp on a regular basis and sometimes for file transfer... certainly over public networks. However, often I want to transfer large (several GB) files from one place on my LAN to another.
I've read that FTP is the fastest, and when I'm transfering many GB, fast matters. Of course I know it's not secure, but I don't need security on my home wired LAN. What I do need many times is preservation of date and time of each file when uploading. Filezilla does that and I use it, but sometimes I need a CLI solution. I have use ncFTP and been happy with it until I realized it doesn't preserve date and time on uploads (probably not on downloads either, haven't looked).
Is there a CLI FTP solution out there that will preserve file date and time information on file transfers (including uploads)?
I'm running the current release of Debian with the 2.6.26-2 kernel. This is an upgrade from an older (2.4 kernel) series redhat release. One of the things I had working in the older system was a dns server with accompanying monthly update of the root hints file. I tried working through a dns how-to to set this up again, but it seems much has moved around since I last played with this. All of the files listed in the how-to are not where it says they should be. I am looking for a better reference on keeping the dns server running with current server information.
View 1 Replies View RelatedI have servers which contain SATA disks and SAS disks. I was testing the speed of writing on these servers and I recognized that SAS 10.000 disks much more slowly than the SATA 7200. What do you think about this slowness? What are the reasons of this slowness?
I am giving the below rates (values) which I took from my test (from my comparisons between SAS 10.000 and SATA 7200);
dd if=/dev/zero of=bigfile.txt bs=1024 count=1000000 when this comment was run in SAS disk server, I took this output(10.000 rpm)
(a new server,2 CPU 8 core and 8 gb ram)
1000000+0 records in
1000000+0 records out
1024000000 bytes (1.0 GB) copied, 12.9662 s, 79.0 MB/s (I have not used this server yet) (hw raid1)
[Code].....
I have/had a PC with several hard drives, and a mix of ubuntu and windows on multi boot.The old boot drive died screaming, and I need to start again. (But my data is safe! yay!)
Is there anything special about which drive can be the main drive to start booting from? Or to put it another way, can I install to any of the other 3 and expect it to work, or do I need to switch them around so a different drive is on the connections for the recently dead one?
My Computer options arent great, but i am going to be starting the process of switching all the computers in my house to linux, i wanted to see if i could make a server to connect all of them for file sharing, but mostly for world of warcraft in the house.it would only be 10 computers accessing it at once. i would basically want to know what the best form of linux would be, the programs id need to have, if it could be done on a desktop based machine, or if id have to use my server. if i would need different hardware or if the linksys hardwired router going to be enough connection. i guess the filesharing would be more the pressing need, especially if it is possible to create a server and convert the connected computers to linux through use of the server
View 4 Replies View RelatedA small combined webserver and fileserver with focus on power consumption and storage size, what would be a cheap and stable solution to this in terms of hardware ? I'm not interested in NAS solution only servers ..
View 1 Replies View RelatedI'm trying to write a program which would get information from a webpage and display the information on my desktop sort of like a widget. I kind of remember there being something like this already made, but for the life of me I can't remember what it's calledDoes anyone know?
View 1 Replies View RelatedI have built a couple RAID's, but I'm uncertain of how I should format the partitions of the raid. Should I format partitions on each disk, and then add them to a raid, or should I create a raid on unformated disks and then format the raid as a partition? Does it matter, and are there performance/reliability issues? I'm creating a RAID-5 using 3 SATA disks on RHEL for user data area.
View 5 Replies View RelatedWe use powerpath on RHEL servers, with at least 2 paths to each disk, as you know the powerpath creates a pseudo devices called emcpowerX. I was wondering if there is any overhead if we don't use the lvm.conf to filter out all sdX disks? Except the "duplicate PV found" messages on LVM, does it delays the boot of the server?
View 1 Replies View RelatedCan a Mac Mini, Server edition, be booted off either of its two disks?
I'm interested in having one disk with OSX Server on it, and the other a dual boot Linux/Windows, to get around OSX's fussiness about boot loaders.
I am connecting a complete set of four hard disks externally to my linux server.I have certain queries on that
1. How to make it detected. Will the cd which had come with that will install the required drivers?
2. How the cd drive will work out in linux?
3. How to configure all the 4 HDD into one LVM?
4 How to remove an already installed software from a linux system?
For some reason we have some network storage not mounted properly after an unexpected restart (ie OS or memory issue) and the subsequent reboot. Has anyone come across this before? It's a bit strange that certain disks are not mounted.Anyway, to detect this, can we insert an extra line into the /etc/inittab to perform post start checks. For example, I have inserted an extra line before the runlevel scripts in /etc/inittab file.
The line will call /usr/local/fstab-check.sh to perform a check on the disks mounted via /etc/fstab. Am thinking of comparing the output from the command "df" versus the content of /etc/fstab.
I'm attempting to do a low level wipe of a server in our office. I originally attempted to use DBAN but it wouldn't recognize the disks.
I've now moved on to attempting to use a Live Boot of Ubuntu 10.10 on a USB drive.
I'm using the following terminal command - sudo dd if=/dev/urandom of=/dev/sda bs=1M
When I did this the first time it simply wiped the USB drive that had Ubuntu on it.
What do I need to do in order to have it wipe all 4 disks on the server instead of the USB Drive?
On Linux server (Trixbox PBX) how to get SIP sitting information form server. It was configure before on X-lite on pc, mistaken its removed from sitting on pc. How to get SIP setting information form server.
View 9 Replies View RelatedSo, I have raid5 array with one spare disk. Is it possible to spin-off/shutdown the spare disk until one drive fails and the spare disk is needed?
View 1 Replies View RelatedI have to move all the files and directories between 2 file systems. Is it good practice to move them at once or first copy them and then move ? How to do this to preserve the permissions and directory structure ?
View 3 Replies View RelatedI have been running a server with an increasingly large md array and always been plagued with intermittent disk faults. For a long time, I've attributed those to either temperature or power glitches. I had just embarked on a quest to a) lower case and drive temperature. They were running between 43 and 47C, sometimes peaking at 52C, so I've added more case fan power and made sure the drive cage was in the flow (it has it's own fan, too). Also, I've upgraded my power supply and made very sure that all the connectors are good. The array currently is a RAID6 with 5 Seagate 1,5TB drives.
When everything seemed to be working fine, I looked at my SMART logs and found that two of my drives (both well over 14000 operating hours) were showing uncorrectible bad blocks. Since it's RAID6, I figured, I couldn't do much harm, ran a badblocks test on it, zeroed the blocks that were reported bad, figuring the drive defect management would remap them to a good part of the disk and zeroed the superblock. I then added it back to the pack and the resync started. At around 50%, a second drive decided to go and shortly thereafter a third. Now, with two out of five drives, RAID6 will fail. Fine. At least, no data will be written to it anymore, however, now I cannot reassemble the array anymore.
Whenever I try I get this:
Code:
mdadm --assemble --scan
mdadm: /dev/md1 assembled from 2 drives and 2 spares - not enough to start the array
Code:
cat /proc/mdstat
Personalities : [raid0] [raid1] [raid6] [raid5] [raid4] [linear]
md1 : inactive sdf1[4](S) sde1[6](S) sdg1[1](S) sdh1[5](S) sdd1[2](S)
7325679320 blocks super 1.0
md0 : active raid1 sdb2[0] sdc2[1]
312464128 blocks [2/2] [UU]
bitmap: 3/149 pages [12KB], 1024KB chunk
Which is not fine. I'm sure that three devices are fine (normally, a failed device would just rejoin the array, skipping most of the resync by way of the bitmap) so I should be able to reassemble the array with the two good ones and the one that failed last, then add the one that failed during the resync and finally re-add the original offender. However, I have no idea how to get them out of the "(S)" state.
Code:
mdadm --examine /dev/sdd1
/dev/sdd1:
Magic : a92b4efc
Version : 1.0
Feature Map : 0x1
Array UUID : d79d81cc:fff69625:5fb4ab4c:46d45217 .....
At times I see heavy hard-disk activity slowing down system.I have enough RAM and enough of it free.Apparently I am not doing anything that should cause this.'vmstat' shows high numbers for "bi bo" I want to find out which processes are doing "bi bo".How can I zero in on the particular processes?What command?
View 3 Replies View RelatedI am new to Scripting. My task is to create a script that would pull the old server(unix) and new server(linux) information and should display all the task information for migration/cutover purpose to the other areas. We already have a script that gives information about ip, subnet, gateway and other information as follows:
#readip ad30db01
Server IP Subnet Gateway VLAN
10.x.x.x 255.x.x.x 10.x.x.1 100
There is a main server which has info about all the servers and we execute the readip from the main server which gets info about any old or new server. So, in my script, I am calling this script, and I want to display only few contents of the readip output as follows:
Hostname: (I should display the server ip from the read ip only out)
Subnet: Should display the subnet from the readip output
Gateway: Same
Vlan: Same
I'm running relatively overpowered server right now, that all it really does is host files and download movies/music that I might enjoy. I'm just seeking to expand it's capabilities to make life in the house more simple. The first thing I'd like to do is create a kind of automatic grocery list generator concept. Here's how I envision it working.
We create a list of recipes for meals we enjoy, specifically an ingredient list. From this list, we create bi-monthly meal lists; what do we want to have for the next two weeks. The server chews through the two lists, compiles a list of ingredients and how much of each we'd need.. and emails this off to our smart phones for us to refer to while shopping. What equipment do I have? I have a headless Ubuntu server running 10.04 and administered via a GUI and NX Client. Two blackberries (both 9700 Bolds) as portable smart clients that would need to at least receive the list, tho ability to add in would be great.
Home network is a mix of wired and wireless, so no issues there for connectivity. So why post this here? Because I'm at a loss as to the software/configuration part. Doing an automated email daemon is easy to send the list out. And a list of recipes or such is easy to get (dozens of cookbooks in the house, plus a small army of them available online).. the issue I'm having with is how to create/manage the database. I'm not familiar with SQL or any database programming at all. Is there something akin to this already in the repositories? Or is there someone who could point me in the right direction so I can do this?
When I try to hit my jsp pages all that gets displayed is the source code.I cannot find any log files that give me any information. It seems as though apache is not forwarding requests to tomcat6 but I cannot verify this. I need some direction on what is happening here. I'm lost and have run out of options.Would JAVA classpaths cause this type of behaviour if they are wrong?
View 2 Replies View RelatedHow do you setup Secondary or Slave Servers in NIS? Will the domain of the slave server be the same as the Master Server?
View 1 Replies View RelatedI need to create a Redhat or CentOS server but I am not really sure where to begin. I'm not sure what network booting and PXE booting is. Are they both the same thing, or are they different? I want to setup one server and two client machines to connect to my server. I would like to be able to load a kickstart CD on my server and have the two client machines boot off that servers kickstart. My concern is, will they boot off the network or do they have to be configured to use PXE booting?
View 12 Replies View RelatedWe want to upgrade our servers running RHAS v3u9 to RHEL 5.3. What is the best way to do this without losing any information.
View 3 Replies View RelatedIf the server restarts, does the information in iptables get lost? I have seen a number of pages where people recommend readding lines or creating bash scripts to get it to work again. What about files like squid.conf, ncsa_auth files, etc.?
View 10 Replies View RelatedWe do have primary & backup DNS both are running in Linux. I'm planning install the 3rd DNS & move the DNS02 to this server(DNS03)& remove the DNS02 later. Ho can I do move all the information & configuration of DNS02 to the new server? configuring the DNS03 & removing DNS02.
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