mt -f error TAPE ERROR

[AA786]

# mt -f /dev/st0 status

Getting below error.
/dev/st0: Input/output error

[Ivan Ferreira · Accepted solution]

Check for erros in /var/log/messages and "dmesg". Change your tape cartridge and identify if you have a light that may indicate that you have a hardware problem.

[skt_skt]

try rewind and then status

[Sandeep_Chaudhary]

try

mt -f /dev/nst0 status

And to set it, something like:

mt -f /dev/nst0 setblk 0

block sizxe 0 means tape will choose block size itself
or

mt -f /dev/nst0 setblk 512


setting blocksize 512 is OK with tar

[AA786]

Sorry
i tried all options all showing errors
mt -f /dev/st0 setblk 512
/dev/st0: Input/output error

fsf,bsf nothing working ,but i can see the entry in /proc/scsi/usb-storage/*
Please help.

[Ivan Ferreira]

Can your please post the output of dmesg and /var/log/messages. Did you check if your led indicators at the devices are not reporting errors or cleaning needed? ¿Did it ever work?

[skt_skt]

could u provide the details of the tape drive?

[AA786]

when unplug/plug the tape drive i am getting same error ,see the dmesg entry
usb 6-5: USB disconnect, address 2
usb 6-6: new high speed USB device using address 3
usb 6-6: device not accepting address 3, error -71
usb 6-6: new high speed USB device using address 4
usb 6-6: device descriptor read/8, error -71
usb 6-6: new high speed USB device using address 5
usb 6-6: unable to read config index 0 descriptor/all
usb 6-6: can't read configurations, error -71
ehci_hcd 0000:00:1d.7: qh f6e85080 (#0) state 1
usb 6-6: new high speed USB device using address 6
usb 6-6: unable to read config index 0 descriptor/all
usb 6-6: can't read configurations, error -71
ehci_hcd 0000:00:1d.7: qh f6e85100 (#0) state 1

[Ivan Ferreira]

Oh! this is an USB tape.

You should try to identify where is the problem:

- Install an USB pen drive into the server and verify if this works. If this works, then the problem is not your USB connector.

- Install the USB tape in another server to see if this works. If this works, then the tape is not having problems.

[Ivan Ferreira]

For a similar problem, I have found this:

>
Hi,The "solution" is to disable usb 2 and run it trough usb 1 with this command:
modprobe -r ehci-hcd

The solution was found in this forum there: http://www.fedoraforum.org/forum/showthread.php?t=165250&page=1&pp=15

Thanks everyone who helped me with this