HP0-J67 · Question #121
You are performing a demo of an HP StoreOnce 2620i Backup System solution in combination with HP Data Protector. All best practice guidelines for the VTL and Data Protector have been adhered to…
The correct answer is C. Disable "SCSI Reserve /Release (drive)" for all of the drives and robotics in the environment and rescan. An HP Data Protector environment is failing to format VTL cartridges with a "Cannot write to device ([87] Wrong parameter.)" error, despite adherence to best practices.
Question
You are performing a demo of an HP StoreOnce 2620i Backup System solution in combination with HP Data Protector. All best practice guidelines for the VTL and Data Protector have been adhered to. However, you receive the following error when formatting a cartridge in a previously- created VTL. [Normal] From: [email protected] "Drive_Demo" Time: 4/23/2013 10:26:09 PM Tape0:0:0:0C Initializing new medium: "[4E94F289] 4E94F289" [Major] From: [email protected] "Drive_Demo" Time: 4/23/2013 10:26:10 PM [90:51] Tape0:0:0:0C Cannot write to device ([87] Wrong parameter. ) [Major] From: [email protected] "Drive_Demo" Time: 4/23/2013 10:26:10 PM Initialization of medium failed. [Normal] From [email protected] "Drive_Demo" Time: 4/23/2013 10:26:14 PM Ejecting medium Tape0:0:0:0C". What must you do to perform a successful demo?
Options
- AAdd an iSNS-Server in the media Server iSCSI configuration, and restart the iSCSI service.
- BDisable "Automatically discover changed SCSI address" for the VTL drives, and rescan the library.
- CDisable "SCSI Reserve /Release (drive)" for all of the drives and robotics in the environment and rescan
- DChange the maximum transfer length of the iSCSI initiator in regedit. and restart the media server.
How the community answered
(31 responses)- A13% (4)
- B6% (2)
- C77% (24)
- D3% (1)
Why each option
An HP Data Protector environment is failing to format VTL cartridges with a "Cannot write to device ([87] Wrong parameter.)" error, despite adherence to best practices.
Adding an iSNS-Server is primarily for iSCSI target discovery, which is unrelated to resolving device write errors caused by reservation conflicts.
Disabling automatic SCSI address discovery typically addresses pathing or device enumeration issues, not fundamental write failures during medium initialization.
The "Cannot write to device" error when formatting VTL cartridges often indicates a conflict with SCSI Reserve/Release commands, which can block write access. Disabling 'SCSI Reserve /Release (drive)' for the affected drives and robotics ensures that HP Data Protector can gain exclusive control and successfully write to the virtual media.
Changing the iSCSI initiator's maximum transfer length is a performance tuning setting and would not resolve a device access conflict preventing write operations.
Concept tested: HP Data Protector VTL troubleshooting, SCSI reservation
Topics
Community Discussion
No community discussion yet for this question.