Ubuntu Servers :: Scsi Tape Device Not Found?
Mar 11, 2010I have a HP Proliant DL380 G3 server with Ubuntu Server 9.10
I have a HP Storageworks Ultrium 215 tape device
For some reason the Ubuntu server does not find the tape device
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Red Hat :: Mapping /proc/scsi/scsi Entries With Respective Device Names In /dev/ Directory
Apr 11, 2011In 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?
CentOS 5 Hardware :: Support HP EH854A LTO4 External SCSI Tape Drive?
Mar 24, 2010Does CentOS 5 support HP EH854A LTO4 External SCSI tape drive?
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I log into server, and mount my local computer (folder) via sshfs.
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After copy, close my ssh sessions.
And use my streamer to backup files stored by server.
I'm wondering, is there any way to share streamer /dev/st0 via ssh session ?
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Jan 3, 2011I have an LTO-3 tape drive.
It shows
Code:
when I do:
Code:
I am running as root
Would like to NOT reboot this server. (WEBSITE) It is running Red Hat Enterprise Linux ES release 4 (Nahant Update 8)
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Jan 15, 2010One of my servers contains two scsi enclosures. After hot removing a disk and hot adding another the new disk gets assigned a device file but the enclosure (in sysfs) doesn't want to see it.
How can I force the enclosure to recognise the hot added disk.
Situation in sysfs:
The link device is dead after hot removing the device and keeps vanished after hot adding the new device. The hot added device gets assigned a device file and it is reachable. Even
Doesn't change anything.
How can I force the link to be updated towards.
General :: Detect The Scsi Device Without Restarting?
Mar 25, 2010I am attaching a LTO-3 tape drivce into my RHEL5 linux machine. Every time i used to restart my machine to detect the tape drive is there any way to rescan the buses to detect the newly attached scsi devices. In solaris "devfsadm" and "iostat" is there. I need the same kind of thing in linux.
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In the case of USB attached SCSI devices, would driver create this device file entry? How is it created? Can somebody please tell me how it is being created automatically. In case I attach a fixed SCSI hard disk before boot up(and create device file /dev/sda1), would USB SCSI device driver create device files starting from /dev/sdb, automatically.
Debian Hardware :: Getting HPE Library And Tape Tools To Recognize Tape Drive
Apr 3, 2016I have been using an LTO-5 Ultrium-3000 tape drive connected to an ATTO HBA without problem. I can control the tape drive using "mt -f /dev/nst0" and have been able to make successful backups using cpio, tar, and dump/restore. I followed some instructions on the web about how to install the HPE Library and Tape Tools application (version 4.21) which relies on conversion of a rpm to a deb file. The software seems to have been installed correctly and runs. However the hardware scan function does not recognize my tape drive. The following is suggested in the user manual if the tape device is not recognized by the software under Linux:
1. Login as root.
2. Edit the following file:
vi /etc/modules.conf
3. Add the following line as appropriate:
add options scsi_mod max_scsi_luns=128
4. Reboot the computer.
The problem is I don't have an /etc/modules.conf and am not sure exactly which file would be equivalent? If this is even the correct solution.
My tape drive is controllable and functions well using "mt -f /dev/nst0 status" so it seems to be a matter of LT&T software to detect the tape drive.
At the risk of providing too much info here some, possibly relevant, output from lshw
*-pci:3
description: PCI bridge
product: 6 Series/C200 Series Chipset Family PCI Express Root Port 1
vendor: Intel Corporation
physical id: 1c
bus info: pci@0000:00:1c.0
version: b5
[Code] .....
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Code:
No volume groups found
unable to find volume group
waitnit fot device /dev/vg1/root
to appear .... not found device nodes:
.....
......
.....
No root device found. exiting to /bin/sh
sh: cant access tty; job control turned off
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Code:
After that, there are no /dev/sd* entries. the hard drive works as expected on my windows box. how can i mount this drive?
Red Hat :: Unable To Insert DAT72 Tape In Tape Drive / Fix It?
Dec 8, 2008I have dell poweredge 830 server with tape drive and RHEL 4 running on it....the issue i am facing is,i am unable to insert the tape as i had ejected the tape forcefully from it....
i tried to do a listing of the contents backedup on tape and it got struck in middle throwing below error,
/dev/st0:device input/output error. after which i was unable to eject the tape using
mt -f /dev/st0 rewoffl
i removed the tape by holding the eject button and now when i try to insert another tape, it's unable to take the tape in to tape drive...
I've tried doing all except reeboting the server, can any one help me out in this issue, hope the blow information may help in debugging the issue... code....
Ubuntu Servers :: Cannot List The TAPE Files?
Mar 2, 2010I've having problems in listing files from a TAPE. I did not create this tape and I'm assuming that the files were successfully backed up to this tape.Some commands that I've tried:
PHP Code:
atenreiro@intranet:~$ sudo mt -f /dev/nst0 status
SCSI 2 tape drive:
[code]...
Fedora Servers :: Tar And Mt Commands For Tape Drive?
Feb 26, 2010I'm having issues with mt commands. For some reason, my server doesn't like backing up directories using tar.
Code:
# tar -czf /dev/st0 /www /home
ends up giving me an error message saying "removing / prefix" and then using the command
Code:
# mt -f /dev/st0 status
gives me an IOCTRL error. I've googled the error code and haven't come up with a viable fix. Thus far, the only way I've been able to check which files are on the tape is:
Code:
# tar -tzf /dev/st0
Of course, without getting the actual directories on the tape in the first place, the only files I've been able to transfer at this point are just singular files within the directories as opposed to the entire directories themselves.
Server :: Error SCSI Controller Was Reset Due To SCSI BUS Noise Or An Invalid Signal?
Feb 15, 2010i 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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The first server sees the 2 halfs however the second server doesn't on the first server:
Ubuntu Servers :: Mounting Large (12TB) SCSI Attached RAID Array (formatted With Ntfs) ?
Feb 16, 2010I have a large RAID array of 12 TB attached to one of my Ubuntu server machines. The RAID volume is formatted with NTFS. The problem is that I can not mount this volume in Ubuntu. I can read it normally if I attach it to windows machine.This is the output from "sudo fdisk -l":
sudo fdisk -l
Disk /dev/sda: 164.7 GB, 164696555520 bytes
255 heads, 63 sectors/track, 20023 cylinders[code]........
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