CentOS 5 :: Connect Up Servers To Storage Array Which Is Running As An SRP Target?

Jul 13, 2011

My goal is to connect up a bunch of CentOS 5.6 servers to storage array which is running as an SRP target. These servers will be running eventually as Xen hypervisors. I'm using Mellanox Infiniband cards and a Qlogic Infiniband switch.

OFED drivers are already installed as standard. I have done the following.

1. Base install of CentOS 5.6 X86_64
2. Installed the following packages...

openib
ibutils
srptools
infiniband-diags
opensm

[Code]...

It works perfectly and connects to the target immediately with great results. I'd just like this to happen correctly on startup.

To work around the issue I have added the line srp_daemon -e -o into the init script for opensm /etc/init.d/opensmd but it doesnt always start the srp_daemon process. Its rather hit and miss

I'd really like srp_daemon to run as a service with a proper init script but I wouldnt know how to write one. I understand that this issue has been addressed in the RHEL6 srptools package but that doesnt help me because the software I intend to use on these servers specifically requires 5.

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Ubuntu Servers :: Accessing Storage Array Drives From LiveCD?

Jun 22, 2011

I'm trying to delete directories (long story, Mac temp files there, Windows not cooperating) on a sever connected to a HP 20 Modular Smart Array set up as RAID5. System currently running Windows. I've booted from a 9.10 LiveCD but can't see the external drives. Is it correct that I need to install mdadm to "see" those drives from LiveCD? From a different machine (linux) I can mount the drive using samba like so:

sudo smbmount //IP address/hostname RAID5 Root Share /mnt/ntserver -o username=smith,password=abcde123

I have admin privileges on the Windows OS. In linux (or Windows beforehand), is it possible to take ownership of the directories so that I can do a rm -f -r <dir> ?

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CentOS 5 :: Differences Between Scsi-target-utils & Iscsi-target

May 8, 2009

I want to run ISCSI target on CentOS. Both "scsi-target-utils" and "iscsi-target" can be used.

They seem to have the same function.

Is there any significant difference between them, on performance or stability?

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Ubuntu Servers :: Mainboard And Storage System - How Both Storage Devices Will Be Supported By Debian

Mar 11, 2011

I'm interested in buying a new hardware for my company. The old server (now 10 years old) should be replaced with a new one. Till now, I was looking on different hardware suppliers, boards and different other places. I found a Tyan board [URL]. The hardware spec is quite interesting and the board would fullfill our claims.

how both storage devices will be supported by Ubuntu or Debian??

- SATA-Controller: AMD SP5100
- SAS-Controller: LSI 1068E

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CentOS 5 :: Sharing A Disk Array Between Two Or More Servers

May 5, 2011

I have a couple of Centos servers, each connected to the Internet using its Static IP address. They are in the same physical rack. Is there a way I an get them to share a disk array. The disk array could be on one of the servers, or it could be separate SAN array.

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Hardware :: Storage Array - How To Tell The Device

Mar 20, 2011

I'm in need to replace a harddrive with higher capacity one but I can't tell which bay is holding on to a drive which has the OS. I don't want to pull the main drive. just wondering if there is a way to light up the led light next to physical drive/bay so I don't accidentally yank out the wrong one.

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Debian Installation :: 7.7 I386 Install On HP P440ar Storage Array

Mar 18, 2015

I am having problems installing Debian 7.7 i386 on the newest HP DL380 GEN9 server with P440ar storage array. The disk detection during installation fails to detect the array.

I have pinpointed the problem to hpsa.ko driver to be outdated as I need a minimum version from September 2014. I have already tried following the guide on " [URL]" but the driver compiling from sources fails (guide is from 2012).

Here is where I got the latest sources: [URL]....

Is there any possible way to install this debian version with this storage array? Newer kernel version is really not an option for me.

"3.2.0-4-686-pae #1 SMP Debian 3.2.65-1+deb7u2 i686 GNU/Linux"

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Server :: Recover RAID5 Storage Array DATA Using Xfs_repair?

Jul 5, 2011

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)?

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Ubuntu Servers :: Creation Of RAID-0 Array In Disk Utility Resulting In Smaller Than Expected Array?

Sep 27, 2010

I have a NETGEAR ReadyNAS NV+ with four 1TB drives in a RAID-5 array. This is our primary file storage. This has previously been backed up to a hardware RAID-0 array directly attached to our Windows server. The capacity of this backup array is no longer sufficient. So the plan was, take a bunch of 200GB to 320GB drives (And a 750) I had kicking around, chuck them in a couple of old SCSI drive enclosures I have collecting dust, attach them via IDA/SATA-to-USB adaptors to a USB hub, attach that to the server, create a JBOD array spanning the disks, and back up the NAS to that. Performance is not an issue as this is just to be used for backup, with the idea being as near to zero cost as possible (Spend so far = NZ$100�ish).

The first hurdle I struck was Windows not supporting Dynamic Disks on USB drives (Required to create a spanned volume). At first I resisted using another machine (i.e. a machine running Ubuntu) as I didn't want to dedicate a piece of hardware to backing up the NAS. I then decided it would be acceptable to do this via a VM, which is what I've done.So I have 10.04 running under VMWare Server 2.0.2 under Windows Server 2008 R2. The disks are all presented to the VM. I wasn't sure if I was going to end up creating the array under LVM or something else, but I noticed Disk Utility has an option to create an array, so I tried that. When I add two 250GB drives, the array size is 500GB. When I then add a 160GB drive, the array size drops to 480GB. Huh? If I keep adding disks (Regardless of order) the final array size comes out at 1.8 TB, as per the attached screenshot. Now with the following drives, I expected something more like:

160 + 250 + 250+ 750 + 250 +200 + 200 + 250 + 320 + 250 + 320 = 3.2TB

Am I missing something or making a false assumption somewhere?

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Ubuntu Servers :: Can't Connect To FTP Server Running Vsftpd

May 29, 2010

I just made a Ubuntu Server install in a virtual machine and am having trouble setting up FTP to transfer files. I've installed LAMP and vsftp. The web server works great, but FTP gives a connection refused error locally and remotely from the host machine. 'Connection attempt failed with "ECONNREFUSED - Connection refused by server".' nmap localhost doesn't list FTP as open even though I have vsftpd set to listen. I've tried restarting vsftpd with no luck.

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Ubuntu Servers :: Connect Multiple Computers Running & Run Software From One Computer From The Other?

Jan 15, 2011

This may sound stupid but I've got to ask. Can I connect multiple computers running Ubuntu & run software from one computer from the other? I know how to connect using SSH & to copy files back & forth but I don't know how or if I can share programs.

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CentOS 5 Networking :: Iptables Not Opening Port To Connect Via Vnc To A Server Running 5.5?

Apr 27, 2011

I'm trying to open up some ports to connect via vnc to a server running Centos 5.5. I've edited /etc/sysconfig/iptables everything *looks* fine, but I still can't seem to get access to the port I've opened (I added some newlines for clarity between commands):

[Code]....

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CentOS 5 :: Conga Errors With Enabled Shared Storage Support In CentOS 5.3?

Jun 24, 2009

I try to set up a 5 nodes cluster and a shared Coraid Storage with conga but it fails with "Shared Storage Support" checked.The message is:'A problem occurred when installing packages: Packages of set "Clustered Storage" are not present in available repository' and it is shown under every node on the next sceen after I submit.The pc where conga runs is on the same subnet (192.168.xxx.xxx) and it has the same /etc/hosts of the other nodes.In that pc runs a proxy too and the nodes go out through it (that pc has 2 NICs)Every node (2.6.18-128.1.14.el5-xen-x86_64) is patched whith the last yum update (this morning) the same is for the pc (2.6.18-128.1.14.el5).Every node has 4 NICs , 2 NICc towards the storage the others in bonding towards the WAN.Every node is exactly alike, they have been installed with the ks.cfg generated from the first node and they all have the support for Clustering, Virtualization, and Clustered Storage.

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Mar 10, 2010

I've been trying to figure out how to set up a partition on my CentOS serve r as an iscsi target, so I can access it from another CentOS client.I've been reading the manuals and various pages on the web, and nothing is very clear. I just want to be able to create a partition on my server, define it as a target, and then have my client initiator mount it.

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CentOS 5 :: How To Configure Iscsi Target

Jan 12, 2010

i have installed centOS5. i want to configure iscsitarget. i know that iscsi target is built-in in centOS5. how can i use iscsiadm utility to configure iscsi target. please describe in detailed.

1.) i want to make 4 drives (4Drives OR 4LUNs)in iscsi target each with 5GB space.
2.) please describe and highlight where we mention disk space(5GB)

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Red Hat / Fedora :: RAID0 Setup - Running Out Of Storage Space

Feb 3, 2011

I have a Fedora NAS (not built by me) there is a 1 Tera of storage 2x 500 set at raid 0. The server runs Fedora 7/8 I believe which, runs flawlessly. Sadly, I am running out of storage space and would like to add more. Can I just put another drive in the box? If so, what do I need to do and what impact does it have on the existing raid 0 setup. Ideally I would like to put two additional in but I am not confident how to configure them. Is this just a case of mapping them in Windows 7.

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Ubuntu Servers :: Target Filesystem Doesn't Have /sbin/init?

Mar 22, 2010

My UBUNTU 8.04 server does not boot anymore : here is the error message :Quote:Target filesystem doesn't have /sbin/initPrevious messages on the boot were :Quote:

kinit: name_to_dev_t(/dev/disk/by-uuid/0a301...a8 = md1(9.1)
kinit: trying to resume from /dev/disk/by-uuid/0a301...a8
kinit : No resume image, doing normal boot...

[code]....

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CentOS 5 :: ISCSI Target Directory - Getting Error For Make Command

Feb 1, 2010

I am trying to install iscsi-target on centos 5.4 i386. When I go into the iscsi-target directory and type make I get the following error:
[root@cluster-storage iscsitarget-1.4.19]# make
cc: /lib/modules/2.6.18-164.el5/build/include/linux/version.h: Datei oder Verzeichnis nicht gefunden
cc: keine Eingabedateien
/bin/sh: line 0: [: -le: unary operator expected
/bin/sh: line 0: [: -le: unary operator expected
/bin/sh: line 0: [: -le: unary operator expected
/bin/sh: line 0: [: -le: unary operator expected
/bin/sh: line 0: [: -le: unary operator expected
/bin/sh: line 0: [: -le: unary operator expected
/bin/sh: line 0: [: -le: unary operator expected
/bin/sh: line 0: [: -le: unary operator expected
/bin/sh: line 0: [: -lt: unary operator expected
make -C usr
make[1]: Entering directory `/opt/iscsitarget-1.4.19/usr' .....
make: *** [kernel] Fehler 2

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May 29, 2011

I just upgraded to 15 and was wondering if it was possible to specify which devices to prioritize a route through. I have my machine, a laptop, connected to my family's router for an internet connection and a wired connection to a personal router for a faster and private connection between my other two computers and a network storage device. Whenever the laptop is connected to my personal router everything goes through it and it can't connect to any external web sites. But when I unplug it and go only on my family's wireless everything is fine, except I can't connect to the storage device since it has no external connections.

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Jun 27, 2011

I have watched a couple ..... videos and read a guide online and i'm still at a loss on how to make a script. All i am trying to do is make a script i can double click to do the following in terminal vncviewer 192.168.2.2 I want to make a script my wife can click to connect to our Storage/Pritner PC.

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General :: Connect Western Digital MyBook 2TB USB External Storage

Jun 25, 2011

how to connect Western Digital MyBook 2TB USB external storage in ubuntu 6.10

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General :: Disable USB Storage From Servers?

Apr 1, 2011

I am trying to disable USB storage from servers.What I did is as following1> modprobe -vr usb_storage2> blacklist usb_storageIt is working fine. But root can again load the module into the kernel. [ modeprobe -v usb_storage ] want to restrict this also. My requirement is not even root can access the usb storage.

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Jan 22, 2010

How to you mount a removable storage in Kubuntu 9.10 that is running on a dual-boot machine with Microsoft Windows XP.

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Jan 23, 2011

I'm currently using Windows Vista 32-bit on a RAID 1 array; I'm using the RAID provided by my motherboard so it's fakeRAID. Anyway, I'd like to do some C development under Linux but I'm not exactly sure how to go about installing it on a software RAID 1 array without messing up Windows. I'm not sure which Linux distro I'm going to install, so I'm hoping that information isn't important. Would I just resize my Windows partition and put Linux on the newly created partition? Do I have to worry about where Linux will put its bootloader or will it manage that on its own? I didn't mean software RAID, I meant fakeRAID.

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Jan 31, 2010

I am using mdadm 2.6.4 for managing RAIDs on Linux kernel 2.6.18. I've a query like whenever I tried to add a new disk to a running linear array(JBOD)i get a message "cannot add new disk to this array".

The exact steps are as follows:
create a new array as:
mdadm -C /dev/md0 -llinear -n2 /dev/sata/ /dev/sata2
It is getting added and i am able to see with -D command.

Now add a new disk sata3 as follows:
mdadm --grow /dev/md0 --add /dev/sata3 I get the output as:
md: sdb has invalid sb, not importing!
md: md_import_device returned -22
mdadm: cannot add new disk to this array.

So my first doubt is whether mdadm 2.6.4 supports this features or not if it supports then do I need to change the driver?

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Jan 24, 2010

I'm running Ubuntu 9.10 with Kvm. I've used a howto to configure my network. Seems to work fine, I've installed the Virtual Machine manager, when I go to create my Virtual Machine, I see the the image is automatically created in /var/lib/libvirt/images. I have a totally separate path for my images. How to I configure a different image directory

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Mar 22, 2010

I wanna try to install ubuntu server on my poweredge 1955 with emc storage, but on the partitioning step it says:
"the following partitions will be formatted:
...<here goes all the lvms in the storage>..."
I already tried all the options in the partitioning step without success

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Jul 1, 2011

I am looking for the best/cheapest way to build a ubuntu server with 8tb of storage hanging off of it.

I don't feel it needs to be hardware raid, so more software raiding swap in and out failed disk drives.

The server itself normal duo core CPU with 2Gb of memory and i would like to have the internal drive of the O/S only.

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Jul 14, 2011

I trying to create a Cluster Linux with two servers and one storage, I have mounted some filesystems in both servers, but, when I create a file on server (1), I don't see the file on server (2).

Is that a problem with the linux or storage configuration ?.

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May 14, 2010

iSCSI Server, can I change the default port 3260 to other port ?

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