Does any body have a script handy to detect unused disks on a Linux Server? I have a bunch of RHEL 4 and 5 Servers with a number of unused EMC disks hanging in there. I just want to make use of these disks or return these disks to the SAN Pool after confirming that they are unused.
View 2 RepliesI need to find myselfe unused IP address in some subnet.
How to determine that particular IP is ununsed in that subnet without asking network admin ?
As stated in the subject line, we have an IBM BladeCenter (HS22). Some of these Blades are supposed to have Windows Server 2008, some RHEL 5.3, and some a dual boot of both. The WS2008 only installs have gone just fine. However, when I went to do one of the dual boot machines (the next highest priority), I ran into problems. I did the Windows install, then went to do the RHEL. Told the installer where everything should go, like any other time I've done this (although usually on less swanky machines). Then got an error:"Your boot partition is on a disk using GPT partitioning scheme but this
machine can not boot using GPT.
This can happen if there is not enough space on your hard drive.The error must be corrected before you try to install Redhat Enterprise server. "To be honest, this was the first time I'd heard of GPT (or EFI), as I've been out of hardware/installs/etc... for a few years, other than fiddling at home in between coding projects.
So I've done some research, and so far what I'm seeing implies that the RHEL 5.3 kernel should support GPT. But that perhaps the issue is the Anaconda installer (specifically its partitioning tool). Does this sound correct? So is there a RHEL release out there with a different installer/partitioner? Or if I use a different tool to partition first, would that work? The disks aren't large enough to *require* GPT, but that's how they are by default, and down the road it'd be nice to know how to work with that, to keep things consistent. Also, the dual boot with WS2008 is much easier with GPT, as that version of Windows seems to require it.If anyone has any thoughts/confirmations/assertions that I'm horribly wrong on the above questions, or any tips on the dual booting other than that (since I'm guessing the logistics will now change with EFI from what I'm used to on older systems), it is vastly appreciated.
Is it possible to create threads in BASH? I need a script with will ping a network to find out unused IP. in a for or while loop the pinging process is taking a very long time. I was wondering if it is possible to send multiple ping on the same time so this will speed up the scanning process.
View 5 Replies View RelatedI recently moved to a new machine, and I copied my entire home folder across. This included lots of hidden (starting with '.') folders, and in many cases they are config folders for packages which I have not installed on the new machine. They are taking up space, so I would like to delete them, but to go through manually and figure out which ones I need would be very laborious. Is there a way to find, and perhaps delete, config folders for packages that are not installed?
View 2 Replies View RelatedIs there a way to find the wwn id of disks mounted on a centos server. I am using san disks via iscsi connection.
View 2 Replies View RelatedI am looking for an application (better kde one) that can search two external hard disks I have and find any duplicate files. I did some backups before to one disk which i copied few years ago to the other disk. Right now I would like some program to check files and tell me if there are the same.
View 9 Replies View RelatedI'm running 10.10 with about 10 SATA disks attached. If I spin them down with hdparm -Y, every disk that has a filesystem on it (but -not- disks that are partitioned but have no filesystem) spin up, simultaneously, about every 10 hours. How do I find the culprit? The machine is sitting effectively idle---I know it's not something I'm doing that's causing the spinups.Is there some way to monitor -anything- that touches a particular block device?
My suspicion is that this might be the gnome low-disk-space warning daemon statting everything. (This -used- to be gnome-volume-manager, but I'm not sure where that code went when GVM was dropped in 10.10---how do I find that code? What package is it in?)
And if it -is- the disk-space monitor, how do I kill it dead? Not just "don't tell me about disks", but "don't even bother looking". I would -really- like these drives to spin down and -stay- down, possibly for days or weeks, until needed---not spin up every 10 hours until I either manually spin them down or until whatever I've set in hdparm spins them back down.
I've been running fedora 12 for a few weeks now and I was wondering how to clean up all of my unused files. I have accumulated quite a bit of software in the form of updates and downloaded packages since starting and I can only assume these are going to continue to build. I have rpmorphan and it lists all of the programs I'm not using but I'm wary of it because it lists WINE as one I haven't used but I use it everyday to play a game. I'm afraid I'll erase something I need, but I'd like to keep my system as clean and slimmed down as possible.
View 1 Replies View RelatedI have two SATA disks, 80G and 1T. Using "df" command we can see the all partitions:
/dev/sda3 6.7G 2.5G 3.9G 40% /
tmpfs 1.7G 0 1.7G 0% /lib/init/rw
udev 1.7G 220K 1.7G 1% /dev
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I've been installing and uninstalling some stuff, and I would like to know if there was a way to see if I have yet to uninstall some unneeded packages. There was a way of doing this on Ubuntu via the Computer Janitor. Is there any way of doing that on Fedora 12?
View 2 Replies View RelatedI just installed Fedora 12 in a laptop with a big hard drive and used LVM for it. The thing is that I used just a fraction of the LVM total size to create the "/" partition and decided to leave the task of creating the other partition (the data partition) with the rest of the LVM space after F12 got installed. Unfortunately I found that Gparted is apparently unable to perform that task of creating a new partition in unallocated LVM space. Is there any way I can create a new partititon in that unused LVM space?
View 4 Replies View RelatedThis is my situation: on a LVM2 partition, i have shrink a logical volume to free new space for a new partition.
My system-config-lvm screen: http://forums.fedoraforum.org/attach...1&d=1258988216 code...
I thought I should share a solution to a freeze issue I was having. Fedora 11 was running well but then started to freeze randomly when it was sitting unused. This could happen multiple times per day. I would have to power off to get it to reboot. Firefox was always open at the time of freezes and I had recently loaded several programs to try and run wmv files....Xine, GStreamer. So, I unloaded the programs. I also went into Firefox options and removed Xine as the default program for opening different types of files. The freeze issue is now cured. I have no idea how this caused the freeze and I never did get wmvs to run but at least the freeze issue seems gone.
View 1 Replies View RelatedSo what happened is i had a small encrypted lvm volume that i no longer need because I have bought an external HDD and used truecrypt on in. So after I transfer all the files off of the encrypted partition, I restart and drop into single user mode and remove the unneeded volume. When i attempt to restart, instead of going to the login screen, when the boot progress bar is full, it says "welcome to emergency mode: enter rootssword for maintenance or press control D for normal mode" or something along those lines. I tired control+D, but that just brought me right back to the emerengy mode screen. I put in my root password and tried startx, but then x gave me this error: "can not start D-bus, can you call q-dbus?". After that i tried both "service dbus start" and "dbus-launch", both of which failed. Is there any quick remedy to this situation, or do i have to reinstall
View 4 Replies View RelatedI have fedora 10 and it has been working fine for over 6 months. Today I did the system update. After the update, I rebooted the system. Now, it hangs displaying the message "Not cloning cgroup for unused subsystem ns".
View 9 Replies View RelatedDo you know where I can find rhel 5.2 iso?
View 4 Replies View RelatedHow to find rhel installation type like is it workstation,basic server,web server etc.I have installed but not getting what kind of installtion tye.
View 4 Replies View RelatedWhere can I find the documentation for RHEL 5.4 kernel 2.6.18?
View 1 Replies View Relatedfind out the primary interface on RHEL Linux. I came across [URL]. Is this the best way?
View 3 Replies View Relatedme know how to find expired account in linux. I am using RHEL 4.0
View 1 Replies View RelatedWhere I can find a legitimate 3rd party repository that provides rpm packages for RHEL 5? My trial subscription to the Red Hat Network has expired and I want to be able to test installing packages so that I can prepare for the RHCT examination.
View 3 Replies View Related<<mod edit: no longer relevant after moving post to new thread>> I'm currently trying to find which web cameras RHEL desktop 5.x supports. Does anybody have a list? (I was searching through hardware.redhat.com, but it is mainly oriented to server and workstation elements)
View 2 Replies View RelatedDuring the installation of RHEL it asks that you may enter the installation number to get packages , updates .....etc, now my server is up and running and i need to get the number that I added during installation
View 2 Replies View RelatedMy current Linux Version:
#more /etc/redhat-release
Red Hat Enterprise Linux Server release 5.2 (Tikanga)
OS Bit is :
#uname -a
Linux <hostname> 2.6.18-128.1.16.el5 #1 SMP Tue Jun 30 06:45:51 EDT 2009 x86_64 x86_64 x86_64 GNU/Linux
Now i want to upgrade to RHEL 5.3 (ie)Red Hat Enterprise Linux Server release 5.3 (Tikanga).
Can we upgrade RHEL 4.8 to RHEL 5.5?
View 3 Replies View RelatedFound the below from RedHat Knowledgebase
The Completely Fair Queuing (cfq) scheduler in Red Hat Enterprise Linux 5appears to have worse I/O read performance than in version 4. It appears as though the Completely Fair Queuing I/O scheduler (cfq) has a regression and thus exhibits reduced read-side throughput which can affect performance for both local and NFS mounted file systems.
One way to mitigate this is to set the cfq's slice_idle parameter to zero. To change this value, execute the following command echo 0 > slice_idle in the /sys/block directory appropriate for your situation, as shown below:
echo 0 > /sys/block/hda/queue/iosched/slice_idle
We are using NFS file systems in RHEL 5.3. I would like to know how to find which /dev/Device is being used by the NFS file systems, so that I could try setting the slice_idle to '0' to see if there is any difference in performance? In /etc/fstab I only see the actual NAS volumes for the NFS file systems.
I 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)
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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?
I am trying to find the dyanmic heap size and stack size of a running process in rhel5.5 and rhel6.I read that the 23rd parameter in the file /proc/pid/stat gives the heap size.Can you elaborate more on this.Also is there any other way to do this?
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