C1533A errors

[Dominic Goff]

I am using NT4 and Arcserve 6.61 with latest service packs. Arcserve informed me of a failed backup, HP tools and Diagnostics passed all the tests apart from the read/write and media which said it had an unrecoverable error condition I/O Exception (Error: 2101 - I/O request timed out) I/O Exception (Sense key:6, Sense code 0x2900 - Power On, Reset, Or Bus Device Reset Occurred. Any help would be greatly appreciated!

[BR19682 · Accepted solution]

Hi there.
Check pls :
- drive needs cleaning ?
- ALL cables connected properly ?
+ power
+ data
- interface correctly plugged on the mobo ?

The i/o error is mostly a SCSI error for a mssing connection.
Rgds
Alexander M. Ermes

[CA780992]

Hello,

I have a similar problem with my C1533A.
I am using BackUp Exec 7.01 on Win NT4.
We just changed our DAT Drive. It worked for a few days, and now almost every day I have an error message in BackupExec saying: "Storage device 'HP 0' reported an error on a request to write data to media. The semaphore timeout period has expired". An other one is: "The request could not be performed because of an I/O device error". Sometimes these massages prevent from saving any data, but sometimes these errors occur after already 2 Go have been saved.
In the event viewer I also have errors.
From Sparrow, some days, all day long, I have "The device, \Device\ScsiPort2, did not respond within the timeout period", or "A parity error was detected on \Device\ScsiPort2", or "The driver detected a controller error on \Device\ScsiPort2".
And sometimes from the 4mmdat???HP source, I have "The driver detected a controller error on \Device\ScsiPort2".

I checked the cables, and everything seems OK, but I didn't try to change the SCSI cable.

Thanks for any suggestions.

Marcin from Paris

[Jan Vermeire]

Hi,
What kind of disk storage configuration do you use ?
I had a similar problem on a RAID 5 system. Mostly all backups (Seagate backup exec) failed, logfile says "The I/O bus was reset". You should also check the NT event log. There, I got the message 'Time out on SCSC-device port 2'(which is my tape drive), so for a while I suspected the tape drive or the scsi-card or cables.
The real reason was that two of the harddisk (Maxtor 20Gb)on the raid array had become very slow (a rebuild took almost 2 days instead of 2 hours). Because of the amount of disk cache, this slow behaviour was not immediately noticable.

[CA1002354]

update the scsi drivers from the website of the computer manufacturer.