hi all, i want to use a compaq sdlt 320 under centos. the tape drive was already installed and after rebooting i was not able to see it(dmesg | grep tape or dmesg | grep scsi). i add the correct module (modprobe st) but i'm not able to use with mt. the st0 file is missing, can someone help to resolve this issue.
thanks
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Pitshou Asingalembi wrote:
hi all, i want to use a compaq sdlt 320 under centos. the tape drive was already installed and after rebooting i was not able to see it(dmesg | grep tape or dmesg | grep scsi). i add the correct module (modprobe st) but i'm not able to use with mt. the st0 file is missing, can someone help to resolve this issue.
Do you see it in /proc/scsi/scsi ? If not then your scsi card isn't seeing it or the driver for the scsi card isn't loaded or something.
nate
cat /proc/scsi/scsi gave me only the HDD, the st module was loaded by typing modprobe st but i don't have the st file under /dev.
--- En date de : Ven 11.7.08, nate centos@linuxpowered.net a écrit :
De: nate centos@linuxpowered.net Objet: Re: [CentOS] tape drive À: centos@centos.org Date: Vendredi 11 Juillet 2008, 4h18
Pitshou Asingalembi wrote:
hi all, i want to use a compaq sdlt 320 under centos. the tape drive was already installed and after rebooting i was not able to see it(dmesg | grep tape
or
dmesg | grep scsi). i add the correct module (modprobe st) but i'm not
able
to use with mt. the st0 file is missing, can someone help to resolve this issue.
Do you see it in /proc/scsi/scsi ? If not then your scsi card isn't seeing it or the driver for the scsi card isn't loaded or something.
nate
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Pitshou Asingalembi wrote:
cat /proc/scsi/scsi gave me only the HDD, the st module was loaded by typing modprobe st but i don't have the st file under /dev.
Doesn't matter if the st module is loaded or not. If it's a SCSI tape drive, and if it's connected to your SCSI controller, and if the SCSI driver for your SCSI controller is loaded, the tape drive will show up as a SCSI device.
Does your SCSI controller have a BIOS? Does the tape drive show up in the SCSI bios?
nate
yes, when the computer reboots, i saw the tape drive as device detected. but i can not use it when i log on --- En date de : Ven 11.7.08, nate centos@linuxpowered.net a écrit :
De: nate centos@linuxpowered.net Objet: Re: [CentOS] tape drive À: centos@centos.org Date: Vendredi 11 Juillet 2008, 7h51
Pitshou Asingalembi wrote:
cat /proc/scsi/scsi gave me only the HDD, the st module was loaded by
typing
modprobe st but i don't have the st file under /dev.
Doesn't matter if the st module is loaded or not. If it's a SCSI tape drive, and if it's connected to your SCSI controller, and if the SCSI driver for your SCSI controller is loaded, the tape drive will show up as a SCSI device.
Does your SCSI controller have a BIOS? Does the tape drive show up in the SCSI bios?
nate
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the hp smart array 6400 controller.
--- En date de : Ven 11.7.08, nate centos@linuxpowered.net a écrit :
De: nate centos@linuxpowered.net Objet: Re: [CentOS] tape drive À: centos@centos.org Date: Vendredi 11 Juillet 2008, 8h17
Pitshou Asingalembi wrote:
yes, when the computer reboots, i saw the tape drive as device detected. but i can not use it when i log on
What kind of scsi controller exactly? send the output of 'dmesg' as well.
nate
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Pitshou Asingalembi wrote:
the hp smart array 6400 controller.
It's usually not a good idea to connect a tape drive to a raid controller. The 6400 is made to be connected to something like a MSA20/MSA30 (JBOD SCSI shelf)
Send the output of the command 'dmesg'.
But I think you need to get another SCSI card to connect the tape drive to.
nate
nate schrieb:
Pitshou Asingalembi wrote:
the hp smart array 6400 controller.
It's usually not a good idea to connect a tape drive to a raid controller.
Exactly. Buy a dedicated SCSI-card for that. Tapes sometimes produce "interesting" events on the SCSI-bus (you might have got to switch it on/off while the server is online). You don't want to have your disk-drives hanging on the same SCSI-bus at that point.
Rainer
Pitshou Asingalembi wrote:
the hp smart array 6400 controller.
Using the cciss driver?
yum install kernel-doc
Read /usr/share/doc/kernel-doc-2.6.18/Documentation/cciss.txt
There's a section on how to enable the tape drive.
Mogens
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John R Pierce -
Mogens Kjaer -
nate -
Pitshou Asingalembi -
Rainer Duffner