That all depends on how compressable the data is. Some data (.zips, = .cabs, etc) are already compressed. Compressing them further only = increase the size of the file. Also, which tape driver are you using? Opt for a newer version from the = manufacture if it's available. Joe -----Original Message----- From: Steve Rance [mailto:Steve.Rance@xxxxxxxxxxxxxxxxxxxxx] Sent: Thursday, May 08, 2003 12:42 AM To: Windows2000 Mailing List (E-mail) Subject: [windows2000] Compression on DAT 20/40 Drive.... Hi All, I have a question regarding the backing up of our Windows 2000 Exchange = =3D Server. It uses Backup Exec 8.60 to backup the Information Store and = =3D Mailboxes to a fairly new DAT 20/40 drive using DDS4 150 metre tapes. = =3D The compression is set within Backup Exec to use Hardware. The problem I have is it will only ever backup 20Gb onto the tape before = =3D saying the tape is full and prompting for another one. I need to backup = =3D about 30Gb of data. Can anyone tell me why I can't get more than 20Gb = =3D on to a tape, because from my understanding I could be able to get =3D closer to 40Gb with compression. Any ideas? Thanks > Steve Rance > IT Manager > Daly International > This e-mail is confidential and is intended solely for the use of the = =3D individual or entity to whom it is addressed. If you are not the =3D intended recipient and you have received this e-mail in error then any = =3D use, dissemination, forwarding, printing or copying of this e-mail is = =3D strictly prohibited and you should contact the sender by e-mail and then = =3D delete all material from your system.=3D20 > Any views or opinions expressed in this message are those of the =3D individual sender, except where the sender expressly, and with =3D authority, states them to be the views of Daly International.=3D20 > This e-mail does not form part of a legally binding agreement. We have = =3D taken precautions to minimise the risk of transmitting software viruses, = =3D but we advise that you carry out your own virus checks on any attachment = =3D to this message. We cannot accept liability for any loss or damage =3D caused by software viruses >=3D20 >=3D20 >=3D20 =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D To Unsubscribe, set digest or vacation mode or view archives use the below link. http://thethin.net/win2000list.cfm ================================== To Unsubscribe, set digest or vacation mode or view archives use the below link. http://thethin.net/win2000list.cfm