Working with symantec backup exec 12.0 for a while already, one week I am having trouble backing up LTO tape-dell, it starts back up and asks for second tape, as if the space of the tape is finished. I believe he is not doing the compression of the files correctly, someone could help me?

Hi there, What size tape do you use, and how much data is being backed up? Also, what are your overwrite and protection settings...?

Hi Cesar, What kind of compression are you using? Hardware compression or software compression. Also what is the current compression ratio you are getting here? You can also go through the following link: http://seer.entsupport.symantec.com/docs/199542.htm Regards, tech29

We've seen many posts regarding poor compression on LTO drives using Symntec drivers (in some cases less than 1:1) One fellow reported much better luck using the manufacturer drivers. Have you tried switching

I for one have always had great luck and no issues using manufacturer supplied drivers... I usually start with that, before downgrading to Symantec's.

Compression wrong

CraigV
Moderator
15 years ago
Hi there,

What size tape do you use, and how much data is being backed up?
Also, what are your overwrite and protection settings...?
tech29
Level 6
15 years ago
Hi Cesar,

What kind of compression are you using? Hardware compression or software compression.

Also what is the current compression ratio you are getting here?

You can also go through the following link:

http://seer.entsupport.symantec.com/docs/199542.htm

Regards,
tech29
Ken_Putnam
Level 6
15 years ago
We've seen many posts regarding poor compression on LTO drives using Symntec drivers (in some cases less than 1:1)

One fellow reported much better luck using the manufacturer drivers. Have you tried switching
teiva-boy
Level 6
15 years ago
I for one have always had great luck and no issues using manufacturer supplied drivers... I usually start with that, before downgrading to Symantec's.
CraigV
Moderator
15 years ago
?
CESAR_JUNIOR
Level 3
15 years ago
Good afternoon everybody, I use hardware compression, and never had been no problem, and had to do 2 years, I've updated drivers and firmware and sent to run the backup again, I'm waiting for the result.
Thank you all, and if the problem persists still asking you hehehe
teiva-boy
Level 6
15 years ago
Not all data is compressible. Are you sure that a user hasn't stuck some large multimedia file on the server that is taking up the space? Many times, when I hear the complaint of compression, it's the data, and not a setting in the tape or backup software.
CESAR_JUNIOR
Level 3
15 years ago
Good morning, I'm backing up my servers, we do not back up any video file, just the database.
Hlp-me.
CESAR_JUNIOR
Level 3
15 years ago
esou staff now have the following error: A failure occurred querying the Writer status. Last error: The VSS Wrinter failed, but the operation can be retried (0x800423f3). State: Failed during prepare snapshot operation (8). missing a 36 GB to complete the backup.Please someone give me a light to solve this problem
A new error:
Please insert overwritable media into the drive.

Overwritable media includes scratch, blank, and recyclable media. Please note that depending on the current Media Overwrite Protection setting, imported and allocated media may be overwritable as well. Consult the online help for more information on overwritable media.

Respond Yes to acknowledge.
Respond No to retry the operation.
Respond Cancel to cancel the operation.
CraigV
Moderator
15 years ago
That means you have:

1. No space on an appendable tape to append data too;
2. No scratch media in your tape drive/autoloader/library.

You need to make sure you have scratch media available...