LP_CHECKSUM_FAILURE

[Rodger_Zeisler]

I installed a 2TB RAID array in my backup server so that I could backup-to-disk and then duplicate the backup to tape. When backing up the disk backup to tape, on some of my backups, I get an LP_CHECKSUM_FAILURE. I can't find any information for this error, either on the veritas site (other then a multi-language translation page) or on the Quantum site. We are using Windows 2000 and a Quantum SDLT320 drive. I am running 9.1 SP2 with all the hotfixes applied.

[Deepali_Badave]

Hello,

It seems that you are using raid controller.
We do not recommend to use the raid controller , we suggest you to use th escsi controller.

You can refer the following technote:

Why is it recommended that tape devices should not be connected to RAID controllers?
http://support.veritas.com/docs/191488


This error may occur if there are some bad blocks on the tape. To resolve
this error, take a pair of fresh media and perform normal and duplicate
backup jobs. This would surely help in isolating the issue

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[andy_gandhi]

I'm having the same exact issue with a similar setup,

winxpsp2
vertias 9.1 w/ all the hotfixes
quanutm sdlt320

and


a 29160 (recommended by veritas and quantum)

I was attempting a restore to wipe the tapes I have and re-do the partially failed backup. Upon the restore I recieved the failure of LP_CHECKSUM and am not certain whether or not my restore is complete (over 500GB of data). I want to avoid restoring again and also resolve why I recieved this error.

[Renuka_-]

Hello,

1.Had the first job to disk succeeded without errors or exceptions.
2. Please run a verify operation to verify the integrity of the data.
3. plezse check if the disk is fragmented ecessively.


Additional Information :
For information on the recent VERITAS Backup Exec security vulnerabilities, including links to the downloads for the necessary hotfixes, please refer to the following document:
Patch summary for Security Advisories VX05-001, VX05-002, VX05-003, VX05-005, VX05-006, VX05-007

http://seer.support.veritas.com/docs/277429.htm

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[andy_gandhi]

all the data was verified and restored correctly,

i've sinced wiped and re-used the tapes to perform additional backups, and can not re-create the problem.

i've moved the data from multiple media servers so i think the database/catalog information was messed up. Thats the only thing I can reason out as the issue.

What does the default "write checksums to media" actually do when creating a job?

[Amruta_Purandar]

Hello,

Please refer the following technote.
Title:
How do the "verify" and "write checksums to media" processes work and why are they necessary?
http://support.veritas.com/docs/245177

Additional Information :
For information on the recent VERITAS Backup Exec security vulnerabilities, including links to the downloads for the necessary hotfixes, please refer to the following document:
Patch summary for Security Advisories VX05-001, VX05-002, VX05-003, VX05-005, VX05-006, VX05-007

http://seer.support.veritas.com/docs/277429.htm

NOTE : If we do not receive your reply within two business days, this post would be marked assumed answered and would be moved to answered questions pool.