label write, The request could not be performed because of an I/O device error.

Dear all,

i am using networker version 7.6.2 on windows 2k3 32 bit connect to tape library ts3200. now i can not Lable tape with error "The request could not be performed because of an I/O device error."

42506 1336643424 2 0 0 2560 2556 0 vnaapwsql010.aia.biz nsrd 9 %s %s: %s 3 0 5 media 0 6 notice 49 188 8445 143 Volume "Unknown" on device "%s": Block size is %d bytes not %lu bytes. Verify the device configuration. Tape positioning by record is disabled. 3 21 9 \\.\Tape0 1 3 512 2 6 131072

72504 1336643440 2 0 0 2560 2556 0 vnaapwsql010.aia.biz nsrd 26 %s %s operation failed: %s 3 21 9 \\.\Tape0 40 19 label without mount 24 80 label write, The request could not be performed because of an I/O device error.

42506 1336643440 2 0 0 2560 2556 0 vnaapwsql010.aia.biz nsrd 9 %s %s: %s 3 0 13 deleted media 0 6 notice 49 105 10017 58 Deleted volume: volid=%s, volname=%s, pool=%s, location=%s 4 0 10 4222324576 22 1 ? 0 1 ? 23 1 ?

38752 1336643441 2 0 0 2560 2556 0 vnaapwsql010.aia.biz nsrd 5 %s %s 2 21 9 \\.\Tape0 49 45 38337 24 %s operation in progress 1 0 5 Eject

67986 1336643461 2 0 0 1672 1092 0 vnaapwsql010.aia.biz nsrmmgd 50 Unloading volume `%s' from device `%s' to slot %d. 3 22 1 - 21 9 \\.\Tape0 1 1 1

7224 1336643491 2 0 0 2560 2556 0 vnaapwsql010.aia.biz nsrd 5 %s %s 2 0 37 [Jukebox `IBM@3.0.1', operation # 9]. 0 80 label write, The request could not be performed because of an I/O device error.

12361 1336643495 2 0 0 2560 2556 0 vnaapwsql010.aia.biz nsrd 27 %s Finished with status: %s 2 0 37 [Jukebox `IBM@3.0.1', operation # 9]. 0 6 failed

any advices Please ?

regards Tuan.