Hardware :: Ensure A USB External HDD Gets Assigned The Same SCSI Id?
Feb 3, 2009
I have 3 WD External USB hard dives. 2 are the same and are rotated for backup purposes and my system assigns them both to /dev/sdb (one is only plugged in at a time), this is fine.The 3rd drive is used for a different purpose and may or may not be plugged in at the same time as one of the others.How can I make the 3rd drive be allocated to /dev/sdc all of the time whether one of the other drives is plugged in or not?
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Mar 24, 2010
Does CentOS 5 support HP EH854A LTO4 External SCSI tape drive?
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Feb 15, 2010
i m facing same error in most of the HCL servers. the problem is that it throws error while booting and sometimes not throws error. the error is :-
Feb 13 13:17:25 fe13s kernel: Adapter 0: Bus A: The SCSI controller was reset due to SCSI BUS noise or an invalid signal. Check cables, termination, termpower, LVDS operation, etc.
Feb 13 13:17:30 fe13s kernel: Adapter 0: Bus B: The SCSI controller successfully recovered from a SCSI BUS issue. The issue may still be present on the BUS. Check cables, termination, termpower, LVDS operation, etc
Feb 13 13:29:15 fe13s kernel: Adapter 0: Bus B: The SCSI controller successfully recovered from a SCSI BUS issue. The issue may still be present on the BUS. Check cables, termination, termpower, LVDS operation, etc
code....
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Apr 11, 2011
In my understanding, the way /proc/scsi/scsi gets populated, /proc/paritions also gets populated in the same fashion. i.e. the description for first entry of /proc/scsi/scsi can be seen in the first entry of /proc/partitions and same for rest.
So, With this assumption, in my project, I used to relate first entry of /proc/scsi/scsi with first entry of /proc/partitions to get its total size and same for all entries.
But, I observed some differences in following scenario, where
1) The first 4 entries in /proc/scsi/scsi are SAN luns attached to my system and for which the actual device names in /dev/ are sda,sdb,sdc and sdd.
2) The last 4 entries are the internal HDDs on same system. In /dev/, their respective device names are sde,sdf,sdg & sdh.
(Output attached at end of the thread)
But in /proc/partitions, the device order is different.
You can see their respective sizes in /proc/partition output as well.
So, my question is, in this particular scenario, I can't relate the first entry of /proc/scsi/scsi with first entry of /proc/partition. i.e. scsi0:00:00:00 is not /dev/sde, because it is actually /dev/sda.
It seems that my assumption is wrong in this scenario.
Is there any way or mechanism to figure out actual device name for an entry in /proc/scsi/scsi in /dev/ directory?
How can my application should relate /proc/scsi/scsi entries with their respective device names and sizes?
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May 4, 2010
When I enter "cat /proc/scsi/scsi" I'm returned with "cat: /proc/scsi/scsi: No such file or directory". I've tried this on two different installs on two different machines.
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Jun 23, 2011
Some of our workstations have LTO's attached and they seem to drop off every now and again, the only thing which picks them up again (besides a reboot) is the famous rescan-scsi-bus script from here
The thing is that I'd like non-root users to be able to run this script, which in turn needs root to /proc/scsi/scsi
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Oct 15, 2010
I have a configuration file for a network device(2100 lines). This device is configurable only over console line. If I copy chunks of those lines into terminal(I use minicom), there will be mistakes (sometimes some characters missing, space characters added etc). Hardware flow control and software flow control doesn't help either. I tried with cu utility, but same issues appeared. There will be mistakes even if I copy in ~100 line parts. What causes those missing/added characters? How to avoid those?
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Mar 8, 2010
how do I ensure a gnome-terminal is kept in focus?
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Mar 16, 2011
Password strength in Linux can be ensured by setting parameters in /etc/pam.d/common-password file. But these policies apply only for non-root users, when they set password for themselves.s there any way to ensure strength of passwords assigned by root?Example: Normally root can assign passwords like "hello" "password" etc. Is there a way to ensure that passwords assigned by root must contain a special character and a digit as mandatory?
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Feb 10, 2010
How can I check if Ubuntu deletes all the content in /tmp folder at each shutdown
(without trial and error)?
How can I tell Ubuntu to delete it?
What about the deletion of other tracks like swapfile at shutdown?
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Feb 14, 2010
When update ubuntu 8.04 amd 64 show this message: Could not download all repository indexes. The repository may no longer be available or could not be contacted because of network problems. If available an older version of the failed index will be used. Otherwise the repository will be ignored. Check your network connection and ensure the repository address in the preferences is correct. Failed to fetch [URL] 404 Not Found. Some index files failed to download, they have been ignored, or old ones used instead.
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Oct 18, 2010
Am attempting to setup an NFS partition for use by a number of users. I would with to use quotas to ensure equitable use of the HDDs resources. However, I keep getting the following error:
[Code]...
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Jun 21, 2011
I need to know particular mount point mounted or not before send data to that mount point.Are there any commandsi used this command. mount -t nfs 172.16.102.50:/root/ESSR_share /root/shared_storage/pc50 -o rw,hard,intr but it take long time (when machine(172.16.102.50) is not available)
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Jan 8, 2010
I was considering adding the below to my RHEL5 system's /etc/pam.d/system-auth file.
password required pam_cracklib.so try_first_pass retry=3 minlen=8
dcredit=-1 ucredit=-1 ocredit=-1 lcredit=0
auth required pam_unix.so nullok try_first_pass
[code]...
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Aug 10, 2010
In a research environment how can I ensure that all RPMs / packages that appear on one system will exist on another? I.e. when using rpm -qa all libraries on one system will be there on another. The reason for this is to ensure they are as close as possible. Is there an easy way to do this without dealing with a larger management suite tool?
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Jun 9, 2010
How do I ensure that my home partition does not get deleted the next time I reinstall Ubuntu, as I can see there is a choice between formatting the whole drive and manually partition it, but if I reinstall won't I delete the home partition as well?
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Dec 17, 2010
I'm running succesfully Debian 6.0 after first trying Debian 5.0 and ran into missing partitions. This is solved by using Debian 6.0 (Beta 2).
Now it's NVidia's turn: Under Ubuntu (yes...i know it by now...) you had to install a proprietary driver for NVidia to ensure that 3D was supported. What about Debian? There's nothing like this under Debian? How do i know if 3D is supported?
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Apr 4, 2011
The graphics card on a openSUSE11.4-32-bit system is a ATI RV530LE [Radeon X1650 PRO] It looks as though xorg sets it up with the RV535 or RV560 chipset if the radeonhd driver is selected Is there a way to ensure the RV530 chipset version is loaded when booting.
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Jul 8, 2010
After moving a website folder on my local development machine to another drive, then moving it back, I got a 403 error. Most of this problem had probably to do with rights that got messed up. After deleting the code and restoring it from SVN, the rights seemed allright. The error stayed however.
The setup is a bit complex, as follows:
I have Ubuntu 10.4 as development machine, trying to mimic the server as much as possible We use Eclipse + SVN and I create all projects in a local folder under my user account In /var/www-vhosts I create folders for each vhost, like this one: test.localhost test.local/index.php: includes the index file of the project
test.local/.htaccess is a dynamic link to the htaccess file in a project subfolder
I get the following error in the apache error log:
The problem seems to be the .htaccess file, or the link to it. When I empty the htaccess, nothing changes When I remove the link, the index-include produces some output (in the apache error log) When I remove the link and replace it with the actual file, I get another error:
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Dec 27, 2010
Things beyond my control are causing me to rush a bit in getting the website moved. I'm working hard to try and get it done, but something else has come up that SSL Certificate.I know that our website's "basket" area is protected by an SSL certificate to ensure customer information, especially credit info, is secure. With the move to Amazon's service, it looks like I may need to create our own self-signed SSL certificate to ensure the basket area remains secure.
I have found guides that walk through how to make one yourself and configuring apache to allow it, but something else has come to mind. The guides I found don't really indicate where the SSL certificate goes afterwards, and also doesn't suggest which sections should be governed by the certificate (as only the basket section uses it, not anything else). How would I find out that information?
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Jun 2, 2011
Have used 10.04 for almost a year now, and the 'upgrade' now beckons.How can I ensure that my programs and Download files remain intact following the process? I already have 11.04 as an .iso on cd, but am unsure how to proceed.
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Oct 1, 2010
is it possible to have the tmp or temp folders assigned elsewhere. I am actually looking to stick them in the shm folder since there is enough memory to throw around the place ..
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May 4, 2010
I've been working on this for a couple days, but I cannot seem to find a solution either on my own or through trusty Google. For whatever reason, I cannot get the Super key assigned to the Left Win as I have had it in the past. There does not seem to be an option to do that in the Keyboard layout thingy.
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Mar 31, 2011
I have been issued 16 IP's my my ISP. Obviously my subnet is 240. is there a way I can take one or any of those IP's and somehow make them into their own network on my end? Really what I am wanting to do is take my 2 DNS servers that are really on the same network far as my assigned subnet and IP's, but take at least one of those IP's and sub-network? it out to the other DNS so it appears to be on another net work. like just simply assign it 192.168.219 255.255.255.255 or something like that.
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Oct 1, 2015
I'm running jessie on virtualbox.
I set staticIP at /etc/network/interfaces.
When I stop/start vm(not restart), dhclient becomes up and ip is assigned by dhcp. Why?
--------------------------------
yoshi@vbox:~$ uname -a
Linux vbox 3.16.0-4-amd64 #1 SMP Debian 3.16.7-ckt11-1 (2015-05-24) x86_64 GNU/Linux
--------------------------------
yoshi@vbox:~$ cat /etc/network/interfaces
# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).
[Code] ....
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May 29, 2014
I have 2 PCs, each running Oracle VirtualBox with about 30VMs installed and standing on the same table
On shopping router I found TP-Link
TL-WR741ND
150Mbps Wireless N Router
[URL] ....
How can it assign 30 IP address to each PC?
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Nov 13, 2009
We have quota system in home directory and there is binary aquota.user file.
How do i determine how much quota is assigned to a user?
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Jul 16, 2010
11.2 was working perfectly which the windows key opened up the menu; it came like this out of the box. now i've upgraded to 11.3, oSUSE has defaulted back to alt+f1 for menu. how can i change it back to the windows key?
'Keyboard Shortcuts' in yast wants me to press a second key, so i cant define it there..
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Apr 12, 2011
I have a Sierra Wireless USB 305 Modem that I want to use as a GSM modem (openSUSE 11.3 x64) I plugged it in and it is detected as a USB device, but no TTY is assigned to it. lsusb output is below:
Bus 006 Device 002: ID 03f0:1027 Hewlett-Packard
Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
[code]....
"dmesg | grep -i tty" output:
console [tty0] enabled
serial8250: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A
serial8250: ttyS1 at I/O 0x2f8 (irq = 3) is a 16550A
00:09: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A
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Jan 11, 2011
I really need to know this for a linux server, but since it also applies to client OSes, I figured the question should be posed here instead of server fault.
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