Transfer speeds between Server and Jukebox

Posted on 2003-03-20
Medium Priority
Last Modified: 2010-04-03
Sunfire v120 server
Using onboard scsi LVD/SE connection
Overland powerloader jukeboc using 2 x SDLT tape drives.
Transfer speeds only around 18Gb compressed per hour when backing one unix client (which is also the the backup server). Should be around 40gb to 80gb.
Any ideas
Question by:twrsystems
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Accepted Solution

pratigan earned 252 total points
ID: 8175260
What model numbers of the SDLT tape drives are you using ?Key Specifications:

Native capacity: 110 GB for SDLT 220; 160 GB for SDLT 320
Native throughput: 11 MBps for SDLT 220; 16 MBps for SDLT 320
Backward-read compatible with DLT type IV media
LVL 10

Assisted Solution

pbarrette earned 248 total points
ID: 8181773
Hi twrsystems,

Also, you note that you are compressing the data. It could be that the data isn't easily compressed, such as image files or MP3's. Some file types are already highly compressed so there isn't much more that the tape drive can do, thus resulting in lower speeds as the bulk of the data being stored isn't being efficiently compressed.

LVL 32

Expert Comment

ID: 10304092
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