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тАО03-13-2003 10:59 AM
тАО03-13-2003 10:59 AM
Fiber connected STK tape drives
This is a duplicate post from the sysadm forum. The original post is at http://forums.itrc.hp.com/cm/QuestionAnswer/1,,0x2c1f5fe8b250d71190080090279cd0f9,00.html
We've run into a problem that has so far stumped HP, Storagetek and Veritas.
We have an rp7410 running 11i connected through our SAN fabric (EMC Connectrix/McData switches) to Storagetek 9840B and 9940B fiber tape drives.
The rp7410 has the latest and greatest patches (including PHKL_28217 SCSI tape cumulative). All the pieces are on EMC's certified list.
The HP can see the drives, they show up in ioscan and devices are created for each one. However, it cannot access the drives - mt, tar, dd all fail with a "cannot open". The one exception is that mt "status" command returns but cannot detect when the drive has a tape inside.
Also, since this has occurred, our copper connected DDS4 has gone brain dead with the same errors (no such device or address).
We are currently accessing some of the same drives with our old Sun system and it's working just fine (same fabric). The drive I'm working with on the HP is not zoned to any other system and has a tape in the drive. Any attempt to access it (mt "status" command, tar, dd, etc) results in either "can not open" or "no such device or address".
Any ideas are greatly appreciated.
We've run into a problem that has so far stumped HP, Storagetek and Veritas.
We have an rp7410 running 11i connected through our SAN fabric (EMC Connectrix/McData switches) to Storagetek 9840B and 9940B fiber tape drives.
The rp7410 has the latest and greatest patches (including PHKL_28217 SCSI tape cumulative). All the pieces are on EMC's certified list.
The HP can see the drives, they show up in ioscan and devices are created for each one. However, it cannot access the drives - mt, tar, dd all fail with a "cannot open". The one exception is that mt "status" command returns but cannot detect when the drive has a tape inside.
Also, since this has occurred, our copper connected DDS4 has gone brain dead with the same errors (no such device or address).
We are currently accessing some of the same drives with our old Sun system and it's working just fine (same fabric). The drive I'm working with on the HP is not zoned to any other system and has a tape in the drive. Any attempt to access it (mt "status" command, tar, dd, etc) results in either "can not open" or "no such device or address".
Any ideas are greatly appreciated.
2 REPLIES 2
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тАО03-13-2003 04:20 PM
тАО03-13-2003 04:20 PM
Re: Fiber connected STK tape drives
Basic rule of very old thumb with peripherals, bring them up first. So do this:
Stop the power on both server and tape library then bring up the tape library until it finishes initializing, and then power up the server.
I know its contrary to fiber since fiber is only seen at run level three but its worked for me before in similar situations.
Stop the power on both server and tape library then bring up the tape library until it finishes initializing, and then power up the server.
I know its contrary to fiber since fiber is only seen at run level three but its worked for me before in similar situations.
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тАО03-14-2003 08:04 AM
тАО03-14-2003 08:04 AM
Re: Fiber connected STK tape drives
We've tried powering the drives up first, power cycling them, even changing their drive emulation.
No luck yet.
Thanks,
Tom
No luck yet.
Thanks,
Tom
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