CentOS 5 Hardware :: Scsi Drive Not Recognized?
Feb 21, 2009
I just installed centos 5 on a hp dl380 server and it has 2 72.8 scsi gig hard drives. The problem I am having is that only one hard drive is being recognized and it is not being recognized as a scsi. This is what I get from fdisk -l
Disk /dev/cciss/c0d0: 72.8 GB, 72833679360 bytes
255 heads, 63 sectors/track, 8854 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/cciss/c0d0p1 * 1 13 104391 83 Linux
/dev/cciss/c0d0p2 14 8854 71015332+ 8e Linux LVM
as you can see, the system doesn't even see the second hard drive. How do I get both hard drives to be seen and how do I get them to be recognized as scsi?
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Mar 24, 2010
Does CentOS 5 support HP EH854A LTO4 External SCSI tape drive?
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Aug 27, 2010
With CentOS-5.5, centos plus enabled, my LaCie external hard drives are not recognized even though connected and powered up before booting. I am logging in as root. Previous 2.4 kernel RHEL Enterprise 3 required a special scanning script which worked with this computer. This current system will not recognize the drives as hardware. On the other hand the drives with USB 2.0 ports automount connected with USB and also are recognized in the hardware list. what diagnostics to do to find out what layers / drivers are missing.
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Dec 28, 2010
I tried to install Centos 5.5 on a new IBM X3650M3 7945 and the hard drive was not found. (actually 1 SAS 300 Gb in slot 1)
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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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May 29, 2010
I try to use a usb pen drive. The usb pen drive show up under computer but not like a drive in geparted. When I look in the log file I find the drive
Code:
May 29 10:11:46 CQ60 kernel: [ 112.942602] scsi 6:0:0:0: Direct-Access
USBest USB2FlashStorage 0.00 PQ: 0 ANSI: 2
I do not know what this mean but it looks like the drive show up like a scsi and not usb or? I need a clue to get it work like a normal usb device.
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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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May 17, 2011
I need to read some data from a hdd that belongs to an old SCO Unix system. The SCSI card is PCI so I unplugged it from the old SCO unix box and stuck it in a new computer and booted using a Fedora 14 USB pen drive. The SCSI card was recognized and so was the hdd but it was not mounted. I then went into Applications, Disk Utility, and found the hdd. Under 'Edit Partition' the type was blank. I was tempted to set it to 'Extended' but was not sure whether that could damage the data on the disk. Does anyone know whether I would be able to read this Hdd by setting the type to 'Extended'?
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Oct 18, 2010
I have just purchased (AT ENORMOUS EXPENSE) a used 306637-004 36 GB hard drive. It has come, by default, with no jumpers and my scsi controller recognizes it as SCSI device 0.Very inconvenient as it clashes with my existing IBM 9GB drive I am loth to play about with.Does any kind person out there know how to jumper this drive to be SCSI ID 1 or 2 (say).
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Jan 22, 2010
I did an installation of SUSE 11.2 on a new SCSI hard drive. Keeping the old hard drive separate. I remembered there was some info on the old hard drive I wanted.
I added this to the system and mounted a partition. I then copied the data over. Then I umounted the partition rebooted the machine and removed the hard drive. However the machine will now not boot without this hard drive even though its not mounted. Not sure what the error message im given means I think it could be trying to fchk it.Do I need to do something more like remove /dev/sdd ?
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Mar 23, 2010
I am setting up a new server and am in the midst of testing RAID. This is an Ubuntu 9.10 server. RAID1 (/dev/md1) is spread across 12 one-terabyte SCSI disks (/dev/sdi through /dev/sdt). It has four spares configured, each of which are also one-terabyte SCSI drives (/dev/sdu through /dev/sdx). I have been following the instructions on the Linux RAID Wiki ([URL]....
I have already tested the RAID successfully by using mdadm to set a drive faulty. Automatic failover to spare and reconstruction worked like a champ. I am now testing "Force fail by hardware". Specifically, I am following the advice, "Take the system down, unplug the disk, and boot it up again." Well, I did that, and the RAID fails to start. It outright refuses to start. It doesn't seem to notice that a drive is missing. Notably, all the drive letters shift up to fill in the space left by removing a drive. The test I did was to:
[code]....
Is removing a disk from the bus a reasonable test in the first place? Meaning, is this likely to happen in a production environment by other means than a human coming by and yanking out the drive? Meaning, is there a hardware failure that would replicate this event? Because, if so, then I don't know how to recover from it.
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Apr 30, 2010
I am running fedora 8 on a Dell 2950 with a qlogic fibre channel card.is attached to a Dell/clarion AX100.I had a drive assigned to this server which had been working for approximately a year now.Recently during a power failure things turned ugly. Rebooting didn't fix things.I unassigned/reassigned the drive, rebooted, still no good.Funny thing when I unassigned the drive and reboot the system.still see /dev/sdb but no partitions and fdisk -l does not display /dev/sdb.I even did "echo 1 > /sys/block/sdb/device/delete"
and the device no longer showed in /dev, but after a reboot it is back.I pulled and reseated the fibre card, same
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Dec 4, 2010
just bought an adaptec 39160 PCI scsi controller and 34Gb drive and installed it on my computer.When i Booted it up a utility thing ran which said 'detecting array' and it found the drive and its size etc. it didn't go any further to allow my system to boot, so I rebooted and pressed CTRL + A to enter the adaptec scsi config. I changed something in there to make the disk non bootable (i Think) and rebooted the system.
It now hangs at :
'Detecting Array .....'
and does not show the drive details or the CTRL + A option to enter the utilities. So the only option I have had is to remove the adaptec controller ( and the system boots fine) the mother board is an Abit an8 ultra - probably about 4 years old and cpu is amd 64 I guess i have broken it and my remedy would be to reset the default options on the adaptec controller, but you can probably guess I have v. limited knowledge and have not used scsi before.
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Aug 12, 2010
I have successfully setup a FOG server to image my Windows clients, so I have tftp, pxe and anything else related to booting to a pxe server setup and rocking. What I'm trying to do now, is use the CentOS net install files to setup CentOS on an old server with no USB boot option, and a broken scsi cdrom drive (it's a Dell PowerEdge 2400, with a single PIII 733 and 1.25GB ram).
Using the FOG Projects gparted wiki entry (adding gparted to the pxe boot menu) I was actually successfully able to pull the net install files over to the PE, and install CentOS 5.5 via local ftp server. At first it kept erroring out (I kept picking and choosing individual packages from the package groups), so I thought it may be an issue with the GUI install (the python script kept spitting back errors forcing a reboot). In any case, I finally got through the GUI install, but now I need / want to know how to force a text mode install.
[Code]....
the bolded "append" line is where I thought I could force the text mode install script, but that didn't work. The vmlinuz and initrd.img files were both pulled form the net install iso, NOT the livecd. Would that have made a difference? If not, what / where / how should I force the text mode install script?
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Aug 6, 2009
I've managed to install Centos 5.3 (with Gnome) from a temporary IDE-based CD drive. This has now been removed and, instead, I have added a SCSI-based Panasonic LF-D201 DVD-RAM drive onto channel-B of the Intel SRCU32 (LSI clone) SCSI RAID card.
it seems that Centos cannot see the DVD-RAM drive at all - not even as a simple CD drive.
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Jan 25, 2010
After connecting, dmesg shows:
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?
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Dec 11, 2009
I added two scsi disk, but it is not listed in /dev. But the controller information is available from lspci code...
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Apr 6, 2010
Can an unattended Kickstart support both IDE (hda) and SCSI (sda)? The goal is to to create a new virtual machine from scratch. What I have works for Parallels in which a new VM defaults to emulate an IDE hard disk. It does not work for VMware Workstation which defaults to emulate a SCSI disk.
The relevant Kickstart section: bootloader --location=mbr --driveorder=hda --append="rhgb quiet"
clearpart --all --initlabel --linux --drives=hda
part /boot --fstype ext3 --size=100 --ondisk=hda
part pv.2 --size=0 --grow --ondisk=hda
volgroup VolGroup00 --pesize=32768 pv.2
logvol / --fstype ext3 --name=LogVol00 --vgname=VolGroup00 --size=1024 --grow
logvol swap --fstype swap --name=LogVol01 --vgname=VolGroup00 --size=1024 --grow --maxsize=2048
Can the Kickstart file be made to not care what drive type is there, or conditionally handle either type?
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Feb 27, 2011
I am looking for a way to partition 2 disks automatically with are both connected to 2 different scsi controllers.
I want one disk on one controller to be partitioned with boot and lvm and the other one with a different partition layout.
I there a way in kickstart to do this, like for instance specify the drive module?
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Apr 25, 2011
Client has a server running 5.5 (I think) and it they moved locations. This server is used in other locations (state) via ssh tunnel as well so they can all access files.
When attempting to boot up I get screenshot 1 (superblock errors)[url]
They supposedly have a backup on a hot swap scsi and I want to know how/if I can restore it using that backup if I cant fix the superblock boot/error issue.
I took some other screenshots:
[url]
[url]
[url]
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Mar 16, 2009
I've just put together a Centos 5.2 system using an old Future Domain SCSI card which would allow me to hook up an external DAT drive. On its BIOS screen it advertises itself as an AHA-2920 which should be handled by the aic7xxx module. However, the module doesn't even get loaded unless I force it in /etc/rc.modules and even then it doesn't pick up the card.
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Oct 14, 2009
We just setup a HP DL380 with CentOS 5, and ran all of the latest updates.I am trying to attach a Compaq array (no model number) that is SCSI attached. I can see the array from the bios and created a raid group on it from there. However, from LVM and lvscan, I don't see it at all. I checked dmesg and there are no errors.Also, interestingly /proc/scsi/scsi is empty.
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Oct 10, 2010
Has anyone successfully used an Adaptec 2100S in a RAID configuration? Specifically, RAID1?
Drivers exist for earlier version of Red Hat, but building an using a driver disk results in the error:
Driver disk is invalid for this release of CentOS
CentOS does not recognize the adapter out-of-the-box as a HW RAID controller, but does recognize the individual disks.
I attempted to use software RAID, but the installer craps-out after a while and the screen locks up.
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May 14, 2010
iSCSI Server, can I change the default port 3260 to other port ?
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May 1, 2010
Trying to install Fedora 12 using the 6 CDs. Trying to install on an older x86 box.Problem is that when detecting my hard drive, Fedora 12 recognizes it as a sda hard drive instead of hda hard drive. I have no SCSI connected to my computer what so ever. It's an old fashion PATA Western Digital hard drive.If I proceed with the install, Fedora 12 only installs 200MB of the OS from the first CD only. No options for additional software or anything.
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Aug 10, 2011
I am running Ubuntu 10.04.03 on an ASUS P5VD2-X. There are numerous HDD attached, but one is uniquely Win XP, the other uniquely Ubuntu. Boot choice is via a GRUB loader. Ubuntu is the first choice normally. The problem is that more often than not, the system does not seem to be able to recognise the CD or DVD reader/writer. On some random occasions, they are recognised, but mostly not. But - and here is the upsetting bit - this problem never occurs when I boot up on Win XP. The CD/DVD devices are instantly and reliably recognised each and every time. So I guess that rules out a hardware or BIOS problem. This is a particularly annoying problem as use of the optical drives is required frequently, and it galls me having to revert to Windows just to use them.
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May 9, 2010
My Friend's Pen Drive, which was working well very well just few days ago, is not being recognized after getting used by a virus affected machine. Its not on fdisk -l or lsusb. However in dmesg I can see the following:
[977.300013] usb 5-2: new full speed USB device using uhci_hcd and address 2
[977.420014] usb 5-2: device descriptor read/64, error -71
[977.644023] usb 5-2: device descriptor read/64, error -71
[977.860013] usb 5-2: new full speed USB device using uhci_hcd and address 3
[977.980013] usb 5-2: device descriptor read/64, error -71
[978.204013] usb 5-2: device descriptor read/64, error -71
[978.420013] usb 5-2: new full speed USB device using uhci_hcd and address 4
[978.828015] usb 5-2: device not accepting address 4, error -71
[978.940015] usb 5-2: new full speed USB device using uhci_hcd and address 5
[979.348013] usb 5-2: device not accepting address 5, error -71
[979.348292] hub 5-0:1.0: unable to enumerate USB device on port 2
[1017.848015] usb 5-2: new full speed USB device using uhci_hcd and address 6
[ 1017.968012] usb 5-2: device descriptor read/64, error -71
[ 1018.192017] usb 5-2: device descriptor read/64, error -71
[ 1018.408014] usb 5-2: new full speed USB device using uhci_hcd and address 7
[ 1018.528012] usb 5-2: device descriptor read/64, error -71
[ 1018.752023] usb 5-2: device descriptor read/64, error -71
[ 1018.968012] usb 5-2: new full speed USB device using uhci_hcd and address 8
[ 1019.376019] usb 5-2: device not accepting address 8, error -71
[ 1019.488011] usb 5-2: new full speed USB device using uhci_hcd and address 9
[ 1019.896016] usb 5-2: device not accepting address 9, error -71
[ 1019.896308] hub 5-0:1.0: unable to enumerate USB device on port 2
[ 1049.984016] usb 5-1: new full speed USB device using uhci_hcd and address 10
[ 1050.104014] usb 5-1: device descriptor read/64, error -71
[ 1050.328014] usb 5-1: device descriptor read/64, error -71
[ 1050.544014] usb 5-1: new full speed USB device using uhci_hcd and address 11
[ 1050.664018] usb 5-1: device descriptor read/64, error -71
[ 1050.888019] usb 5-1: device descriptor read/64, error -71
[ 1051.104025] usb 5-1: new full speed USB device using uhci_hcd and address 12
[ 1051.512014] usb 5-1: device not accepting address 12, error -71
[ 1051.624101] usb 5-1: new full speed USB device using uhci_hcd and address 13
[ 1052.032014] usb 5-1: device not accepting address 13, error -71
[ 1052.032991] hub 5-0:1.0: unable to enumerate USB device on port 1
What these Errors actually mean and how Can I get this pen drive Back to work?
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Feb 19, 2010
I have a 2nd hard drive (500 GB) that I keep my media on. When I tried to access it, it wasn't showing up in places or even places > computer. I used system > administration > disk utility. On the left hand side it shows the drive listed with the type and model number. Right under that it shows 500 GB Hard Drive unrecognized unknown or unused. If possible I would like to recover the media on this drive. I had setup this drive as ext3 and had it mount /media/sdb1. I can go to /media/sdb1 in the file browser but nothing is there.
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