Just to find out if it is the tape system that is the problem - run a tar with some GB's of files and measure the time. /Espen Phone: +47 69215581 / + 47 92499076 email: espen.ekeroth@omxgroup.com MSN: espene@halden.net <table width=100%> <tr valign=top> <td> <td>"Trice, Jim" <jtrice@haastcm.com> Sent by: rhn-users-bounces@redhat.com 20.06.2005 19:25 Please respond to Red Hat Network Users List <td> To: "Red Hat Network Users List" <rhn-users@redhat.com> cc: Subject: RE: [rhn-users] Backup problem using DLT Tape Drive in LINUX</table> <tt> Hi, If you are planning on using dump for your backups you should reconsider. I may be a little out of date but linux dump was not recommended the last time I looked. I would recommend using cpio or tar for simple backups. I would try to determine if it is the disk access of tape access giving problems. Have you tried backing up to /dev/null. You could also benchmark your disk systems using something like iozone (google it). Jim T. > -----Original Message----- > From: rhn-users-bounces@redhat.com [mailto:rhn-users-bounces@redhat.com] On Behalf Of Ramesh R > Sent: Monday, June 20, 2005 1:59 AM > To: rhn-users@redhat.com > Subject: [rhn-users] Backup problem using DLT Tape Drive in LINUX > > Hi, > Iam from India and we have installed Linux ES Verion 3 on DELL SERVER > POWEREDGE 2850 series which has following configuration: Dual Processor > with 4 GB RAM ad 4 * 72 GB SCSI Hard disk Drives With RAID 10 > technology. We have implemented Oracle Applications ERP . We have a > peculiar problem for backing up our data. We have connected DLT Tape > Drive VS80 40/80GB ( Tandberg) capacity with SCSI Adaptec Card. When we > initiate backup command as follows: > dump of /dev/st0 /data/erpp where /dev/st0 denotes the device for > tape drive and /data/erpp is the partition in which oracle apps has been > installed. The timing for backing up 63GB data and files , it takes 18 > hours for completion. We had replaced the SCSI adaptec card , Tape Drive > and cable but still it gives same timing. > The same process we had tried from a desktop by applying latest SCSI > drivers and initiated the backup , it took 12 minutes for 2 GB of data. > We had applied latest driver for Linux but still it shows the same > timing. I need to know any other parameters needs to be configured under > Linux. I need help more urgently as we are going online by next week. > > Regards > Rames.R > > _______________________________________________ > rhn-users mailing list > rhn-users@redhat.com > https://www.redhat.com/mailman/listinfo/rhn-users _______________________________________________ rhn-users mailing list rhn-users@redhat.com https://www.redhat.com/mailman/listinfo/rhn-users </tt> ******************************************************************************** This e-mail and the information it contains may be privileged and/or confidential. It is for the intended addressee(s) only. The unauthorised use, disclosure or copying of this e-mail, or any information it contains, is prohibited. If you are not an intended recipient, please contact the sender and delete the material from your computer. ********************************************************************************